mercurial-scm/hg: rust/hg-core/src/revlog/index.rs annotate

annotate rust/hg-core/src/revlog/index.rs @ 50976:4c5f6e95df84

rust: make `Revision` a newtype This change is the one we've been building towards during this series. The aim is to make `Revision` mean more than a simple integer, holding the information that it is valid for a given revlog index. While this still allows for programmer error, since creating a revision directly and querying a different index with a "checked" revision are still possible, the friction created by the newtype will hopefully make us think twice about which type to use. Enough of the Rust ecosystem relies on the newtype pattern to be efficiently optimized away (even compiler in codegen tests?), so I'm not worried about this being a fundamental problem. [1] https://github.com/rust-lang/rust/blob/7a70647f195f6b0a0f1ebd72b1542ba91a32f43a/tests/codegen/vec-in-place.rs#L47

author	Rapha?l Gom?s <rgomes@octobus.net>
date	Fri, 18 Aug 2023 14:34:29 +0200
parents	27e773aa607d
children	1ef4a36a934d

rev	line source
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	1 use std::fmt::Debug;
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	2 use std::ops::Deref;
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	3
45531 b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	4 use byteorder::{BigEndian, ByteOrder};
b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	5
46443 43d63979a75e rust: use HgError in RevlogError and Vfs Simon Sapin <simon.sapin@octobus.net> parents: 46090 diff changeset	6 use crate::errors::HgError;
46033 88e741bf2d93 rust: use NodePrefix::from_hex instead of hex::decode directly Simon Sapin <simon-commits@exyr.org> parents: 45602 diff changeset	7 use crate::revlog::node::Node;
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	8 use crate::revlog::{Revision, NULL_REVISION};
50975 27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	9 use crate::{Graph, GraphError, RevlogIndex, UncheckedRevision};
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	10
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	11 pub const INDEX_ENTRY_SIZE: usize = 64;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	12
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	13 pub struct IndexHeader {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	14 header_bytes: [u8; 4],
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	15 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	16
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	17 #[derive(Copy, Clone)]
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	18 pub struct IndexHeaderFlags {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	19 flags: u16,
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	20 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	21
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	22 /// Corresponds to the high bits of `_format_flags` in python
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	23 impl IndexHeaderFlags {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	24 /// Corresponds to FLAG_INLINE_DATA in python
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	25 pub fn is_inline(self) -> bool {
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	26 self.flags & 1 != 0
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	27 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	28 /// Corresponds to FLAG_GENERALDELTA in python
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	29 pub fn uses_generaldelta(self) -> bool {
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	30 self.flags & 2 != 0
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	31 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	32 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	33
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	34 /// Corresponds to the INDEX_HEADER structure,
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	35 /// which is parsed as a `header` variable in `_loadindex` in `revlog.py`
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	36 impl IndexHeader {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	37 fn format_flags(&self) -> IndexHeaderFlags {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	38 // No "unknown flags" check here, unlike in python. Maybe there should
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	39 // be.
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	40 IndexHeaderFlags {
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	41 flags: BigEndian::read_u16(&self.header_bytes[0..2]),
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	42 }
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	43 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	44
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	45 /// The only revlog version currently supported by rhg.
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	46 const REVLOGV1: u16 = 1;
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	47
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	48 /// Corresponds to `_format_version` in Python.
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	49 fn format_version(&self) -> u16 {
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	50 BigEndian::read_u16(&self.header_bytes[2..4])
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	51 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	52
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	53 const EMPTY_INDEX_HEADER: IndexHeader = IndexHeader {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	54 // We treat an empty file as a valid index with no entries.
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	55 // Here we make an arbitrary choice of what we assume the format of the
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	56 // index to be (V1, using generaldelta).
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	57 // This doesn't matter too much, since we're only doing read-only
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	58 // access. but the value corresponds to the `new_header` variable in
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	59 // `revlog.py`, `_loadindex`
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	60 header_bytes: [0, 3, 0, 1],
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	61 };
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	62
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	63 fn parse(index_bytes: &[u8]) -> Result<IndexHeader, HgError> {
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	64 if index_bytes.is_empty() {
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	65 return Ok(IndexHeader::EMPTY_INDEX_HEADER);
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	66 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	67 if index_bytes.len() < 4 {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	68 return Err(HgError::corrupted(
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	69 "corrupted revlog: can't read the index format header",
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	70 ));
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	71 }
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	72 Ok(IndexHeader {
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	73 header_bytes: {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	74 let bytes: [u8; 4] =
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	75 index_bytes[0..4].try_into().expect("impossible");
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	76 bytes
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	77 },
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	78 })
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	79 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	80 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	81
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	82 /// A Revlog index
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	83 pub struct Index {
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	84 bytes: Box<dyn Deref<Target = [u8]> + Send>,
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	85 /// Offsets of starts of index blocks.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	86 /// Only needed when the index is interleaved with data.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	87 offsets: Option<Vec<usize>>,
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	88 uses_generaldelta: bool,
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	89 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	90
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	91 impl Debug for Index {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	92 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	93 f.debug_struct("Index")
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	94 .field("offsets", &self.offsets)
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	95 .field("uses_generaldelta", &self.uses_generaldelta)
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	96 .finish()
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	97 }
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	98 }
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	99
50975 27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	100 impl Graph for Index {
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	101 fn parents(&self, rev: Revision) -> Result<[Revision; 2], GraphError> {
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	102 let err = \|\| GraphError::ParentOutOfRange(rev);
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	103 match self.get_entry(rev) {
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	104 Some(entry) => {
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	105 // The C implementation checks that the parents are valid
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	106 // before returning
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	107 Ok([
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	108 self.check_revision(entry.p1()).ok_or_else(err)?,
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	109 self.check_revision(entry.p2()).ok_or_else(err)?,
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	110 ])
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	111 }
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	112 None => Ok([NULL_REVISION, NULL_REVISION]),
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	113 }
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	114 }
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	115 }
27e773aa607d rust: implement the `Graph` trait for all revlogs Rapha?l Gom?s <rgomes@octobus.net> parents: 50974 diff changeset	116
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	117 impl Index {
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	118 /// Create an index from bytes.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	119 /// Calculate the start of each entry when is_inline is true.
45602 1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	120 pub fn new(
1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	121 bytes: Box<dyn Deref<Target = [u8]> + Send>,
47963 001d747c2baf rust: Return HgError instead of RevlogError in revlog constructors Simon Sapin <simon.sapin@octobus.net> parents: 46887 diff changeset	122 ) -> Result<Self, HgError> {
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	123 let header = IndexHeader::parse(bytes.as_ref())?;
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	124
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	125 if header.format_version() != IndexHeader::REVLOGV1 {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	126 // A proper new version should have had a repo/store
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	127 // requirement.
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	128 return Err(HgError::corrupted("unsupported revlog version"));
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	129 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	130
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	131 // This is only correct because we know version is REVLOGV1.
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	132 // In v2 we always use generaldelta, while in v0 we never use
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	133 // generaldelta. Similar for [is_inline] (it's only used in v1).
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	134 let uses_generaldelta = header.format_flags().uses_generaldelta();
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	135
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	136 if header.format_flags().is_inline() {
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	137 let mut offset: usize = 0;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	138 let mut offsets = Vec::new();
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	139
45590 11f3c3f408fd hg-core: minor code style change (D8958#inline-14993 followup) Antoine cezar<acezar@chwitlabs.fr> parents: 45536 diff changeset	140 while offset + INDEX_ENTRY_SIZE <= bytes.len() {
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	141 offsets.push(offset);
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	142 let end = offset + INDEX_ENTRY_SIZE;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	143 let entry = IndexEntry {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	144 bytes: &bytes[offset..end],
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	145 offset_override: None,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	146 };
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	147
48543 0a4ac916673e rhg: RevlogEntry::uncompressed_len is signed Simon Sapin <simon.sapin@octobus.net> parents: 48458 diff changeset	148 offset += INDEX_ENTRY_SIZE + entry.compressed_len() as usize;
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	149 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	150
45602 1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	151 if offset == bytes.len() {
1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	152 Ok(Self {
1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	153 bytes,
1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	154 offsets: Some(offsets),
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	155 uses_generaldelta,
45602 1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	156 })
1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	157 } else {
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	158 Err(HgError::corrupted("unexpected inline revlog length"))
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	159 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	160 } else {
45602 1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	161 Ok(Self {
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	162 bytes,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	163 offsets: None,
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	164 uses_generaldelta,
45602 1cef583541c0 hg-core: return Err if `offset != bytes.len()` Antoine cezar<acezar@chwitlabs.fr> parents: 45601 diff changeset	165 })
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	166 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	167 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	168
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	169 pub fn uses_generaldelta(&self) -> bool {
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	170 self.uses_generaldelta
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	171 }
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	172
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	173 /// Value of the inline flag.
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	174 pub fn is_inline(&self) -> bool {
48226 5e77bdc29d56 rhg: do not try to open a nodemap for an inline index Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48198 diff changeset	175 self.offsets.is_some()
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	176 }
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	177
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	178 /// Return a slice of bytes if `revlog` is inline. Panic if not.
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	179 pub fn data(&self, start: usize, end: usize) -> &[u8] {
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	180 if !self.is_inline() {
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	181 panic!("tried to access data in the index of a revlog that is not inline");
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	182 }
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	183 &self.bytes[start..end]
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	184 }
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	185
45536 639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	186 /// Return number of entries of the revlog index.
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	187 pub fn len(&self) -> usize {
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	188 if let Some(offsets) = &self.offsets {
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	189 offsets.len()
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	190 } else {
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	191 self.bytes.len() / INDEX_ENTRY_SIZE
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	192 }
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	193 }
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	194
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	195 /// Returns `true` if the `Index` has zero `entries`.
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	196 pub fn is_empty(&self) -> bool {
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	197 self.len() == 0
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	198 }
639f33f22faf hg-core: add a `ListRevTrackedFiles` operation Antoine Cezar <antoine.cezar@octobus.net> parents: 45531 diff changeset	199
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	200 /// Return the index entry corresponding to the given revision if it
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	201 /// exists.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	202 pub fn get_entry(&self, rev: Revision) -> Option<IndexEntry> {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	203 if rev == NULL_REVISION {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	204 return None;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	205 }
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	206 Some(if let Some(offsets) = &self.offsets {
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	207 self.get_entry_inline(rev, offsets)
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	208 } else {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	209 self.get_entry_separated(rev)
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	210 })
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	211 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	212
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	213 fn get_entry_inline(
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	214 &self,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	215 rev: Revision,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	216 offsets: &[usize],
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	217 ) -> IndexEntry {
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	218 let start = offsets[rev.0 as usize];
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	219 let end = start + INDEX_ENTRY_SIZE;
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	220 let bytes = &self.bytes[start..end];
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	221
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	222 // See IndexEntry for an explanation of this override.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	223 let offset_override = Some(end);
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	224
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	225 IndexEntry {
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	226 bytes,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	227 offset_override,
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	228 }
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	229 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	230
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	231 fn get_entry_separated(&self, rev: Revision) -> IndexEntry {
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	232 let start = rev.0 as usize * INDEX_ENTRY_SIZE;
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	233 let end = start + INDEX_ENTRY_SIZE;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	234 let bytes = &self.bytes[start..end];
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	235
45591 f38adf8b0711 hg-core: Explain offset override of first revision Antoine cezar<acezar@chwitlabs.fr> parents: 45590 diff changeset	236 // Override the offset of the first revision as its bytes are used
f38adf8b0711 hg-core: Explain offset override of first revision Antoine cezar<acezar@chwitlabs.fr> parents: 45590 diff changeset	237 // for the index's metadata (saving space because it is always 0)
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	238 let offset_override = if rev == Revision(0) { Some(0) } else { None };
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	239
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	240 IndexEntry {
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	241 bytes,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	242 offset_override,
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	243 }
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	244 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	245 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	246
46090 9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	247 impl super::RevlogIndex for Index {
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	248 fn len(&self) -> usize {
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	249 self.len()
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	250 }
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	251
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	252 fn node(&self, rev: Revision) -> Option<&Node> {
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	253 self.get_entry(rev).map(\|entry\| entry.hash())
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	254 }
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	255 }
9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	256
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	257 #[derive(Debug)]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	258 pub struct IndexEntry<'a> {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	259 bytes: &'a [u8],
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	260 /// Allows to override the offset value of the entry.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	261 ///
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	262 /// For interleaved index and data, the offset stored in the index
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	263 /// corresponds to the separated data offset.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	264 /// It has to be overridden with the actual offset in the interleaved
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	265 /// index which is just after the index block.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	266 ///
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	267 /// For separated index and data, the offset stored in the first index
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	268 /// entry is mixed with the index headers.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	269 /// It has to be overridden with 0.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	270 offset_override: Option<usize>,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	271 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	272
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	273 impl<'a> IndexEntry<'a> {
45593 da30e4b553c3 hg-core: minor docstring update (D8958#inline-14991 followup) Antoine cezar<acezar@chwitlabs.fr> parents: 45592 diff changeset	274 /// Return the offset of the data.
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	275 pub fn offset(&self) -> usize {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	276 if let Some(offset_override) = self.offset_override {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	277 offset_override
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	278 } else {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	279 let mut bytes = [0; 8];
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	280 bytes[2..8].copy_from_slice(&self.bytes[0..=5]);
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	281 BigEndian::read_u64(&bytes[..]) as usize
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	282 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	283 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	284
48546 e91aa800ae5b rhg: desambiguate status without decompressing filelog if possible Simon Sapin <simon.sapin@octobus.net> parents: 48543 diff changeset	285 pub fn flags(&self) -> u16 {
e91aa800ae5b rhg: desambiguate status without decompressing filelog if possible Simon Sapin <simon.sapin@octobus.net> parents: 48543 diff changeset	286 BigEndian::read_u16(&self.bytes[6..=7])
e91aa800ae5b rhg: desambiguate status without decompressing filelog if possible Simon Sapin <simon.sapin@octobus.net> parents: 48543 diff changeset	287 }
e91aa800ae5b rhg: desambiguate status without decompressing filelog if possible Simon Sapin <simon.sapin@octobus.net> parents: 48543 diff changeset	288
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	289 /// Return the compressed length of the data.
48543 0a4ac916673e rhg: RevlogEntry::uncompressed_len is signed Simon Sapin <simon.sapin@octobus.net> parents: 48458 diff changeset	290 pub fn compressed_len(&self) -> u32 {
0a4ac916673e rhg: RevlogEntry::uncompressed_len is signed Simon Sapin <simon.sapin@octobus.net> parents: 48458 diff changeset	291 BigEndian::read_u32(&self.bytes[8..=11])
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	292 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	293
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	294 /// Return the uncompressed length of the data.
48543 0a4ac916673e rhg: RevlogEntry::uncompressed_len is signed Simon Sapin <simon.sapin@octobus.net> parents: 48458 diff changeset	295 pub fn uncompressed_len(&self) -> i32 {
0a4ac916673e rhg: RevlogEntry::uncompressed_len is signed Simon Sapin <simon.sapin@octobus.net> parents: 48458 diff changeset	296 BigEndian::read_i32(&self.bytes[12..=15])
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	297 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	298
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	299 /// Return the revision upon which the data has been derived.
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	300 pub fn base_revision_or_base_of_delta_chain(&self) -> UncheckedRevision {
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	301 // TODO Maybe return an Option when base_revision == rev?
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	302 // Requires to add rev to IndexEntry
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	303
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	304 BigEndian::read_i32(&self.bytes[16..]).into()
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	305 }
45531 b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	306
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	307 pub fn link_revision(&self) -> UncheckedRevision {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	308 BigEndian::read_i32(&self.bytes[20..]).into()
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	309 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	310
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	311 pub fn p1(&self) -> UncheckedRevision {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	312 BigEndian::read_i32(&self.bytes[24..]).into()
45531 b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	313 }
b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	314
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	315 pub fn p2(&self) -> UncheckedRevision {
1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	316 BigEndian::read_i32(&self.bytes[28..]).into()
45531 b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	317 }
b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	318
b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	319 /// Return the hash of revision's full text.
b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	320 ///
b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	321 /// Currently, SHA-1 is used and only the first 20 bytes of this field
b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	322 /// are used.
46090 9eb07ab3f2d4 rhg: use persistent nodemap when available Simon Sapin <simon-commits@exyr.org> parents: 46033 diff changeset	323 pub fn hash(&self) -> &'a Node {
46033 88e741bf2d93 rust: use NodePrefix::from_hex instead of hex::decode directly Simon Sapin <simon-commits@exyr.org> parents: 45602 diff changeset	324 (&self.bytes[32..52]).try_into().unwrap()
45531 b0d6309ff50c hg-core: check data integrity in `Revlog` Antoine Cezar <antoine.cezar@octobus.net> parents: 45526 diff changeset	325 }
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	326 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	327
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	328 #[cfg(test)]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	329 mod tests {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	330 use super::*;
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	331 use crate::node::NULL_NODE;
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	332
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	333 #[cfg(test)]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	334 #[derive(Debug, Copy, Clone)]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	335 pub struct IndexEntryBuilder {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	336 is_first: bool,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	337 is_inline: bool,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	338 is_general_delta: bool,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	339 version: u16,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	340 offset: usize,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	341 compressed_len: usize,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	342 uncompressed_len: usize,
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	343 base_revision_or_base_of_delta_chain: Revision,
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	344 link_revision: Revision,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	345 p1: Revision,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	346 p2: Revision,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	347 node: Node,
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	348 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	349
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	350 #[cfg(test)]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	351 impl IndexEntryBuilder {
49926 0780371d6b1e rust-clippy: tell `clippy` we don't need to declare a default here Rapha?l Gom?s <rgomes@octobus.net> parents: 49631 diff changeset	352 #[allow(clippy::new_without_default)]
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	353 pub fn new() -> Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	354 Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	355 is_first: false,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	356 is_inline: false,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	357 is_general_delta: true,
49092 d200ecb76c72 rust-revlog: change default version from 2 to 1 in test builder Martin von Zweigbergk <martinvonz@google.com> parents: 48546 diff changeset	358 version: 1,
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	359 offset: 0,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	360 compressed_len: 0,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	361 uncompressed_len: 0,
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	362 base_revision_or_base_of_delta_chain: Revision(0),
4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	363 link_revision: Revision(0),
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	364 p1: NULL_REVISION,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	365 p2: NULL_REVISION,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	366 node: NULL_NODE,
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	367 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	368 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	369
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	370 pub fn is_first(&mut self, value: bool) -> &mut Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	371 self.is_first = value;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	372 self
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	373 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	374
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	375 pub fn with_inline(&mut self, value: bool) -> &mut Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	376 self.is_inline = value;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	377 self
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	378 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	379
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	380 pub fn with_general_delta(&mut self, value: bool) -> &mut Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	381 self.is_general_delta = value;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	382 self
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	383 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	384
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	385 pub fn with_version(&mut self, value: u16) -> &mut Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	386 self.version = value;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	387 self
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	388 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	389
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	390 pub fn with_offset(&mut self, value: usize) -> &mut Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	391 self.offset = value;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	392 self
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	393 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	394
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	395 pub fn with_compressed_len(&mut self, value: usize) -> &mut Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	396 self.compressed_len = value;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	397 self
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	398 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	399
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	400 pub fn with_uncompressed_len(&mut self, value: usize) -> &mut Self {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	401 self.uncompressed_len = value;
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	402 self
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	403 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	404
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	405 pub fn with_base_revision_or_base_of_delta_chain(
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	406 &mut self,
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	407 value: Revision,
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	408 ) -> &mut Self {
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	409 self.base_revision_or_base_of_delta_chain = value;
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	410 self
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	411 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	412
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	413 pub fn with_link_revision(&mut self, value: Revision) -> &mut Self {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	414 self.link_revision = value;
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	415 self
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	416 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	417
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	418 pub fn with_p1(&mut self, value: Revision) -> &mut Self {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	419 self.p1 = value;
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	420 self
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	421 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	422
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	423 pub fn with_p2(&mut self, value: Revision) -> &mut Self {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	424 self.p2 = value;
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	425 self
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	426 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	427
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	428 pub fn with_node(&mut self, value: Node) -> &mut Self {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	429 self.node = value;
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	430 self
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	431 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	432
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	433 pub fn build(&self) -> Vec<u8> {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	434 let mut bytes = Vec::with_capacity(INDEX_ENTRY_SIZE);
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	435 if self.is_first {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	436 bytes.extend(&match (self.is_general_delta, self.is_inline) {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	437 (false, false) => [0u8, 0],
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	438 (false, true) => [0u8, 1],
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	439 (true, false) => [0u8, 2],
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	440 (true, true) => [0u8, 3],
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	441 });
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	442 bytes.extend(&self.version.to_be_bytes());
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	443 // Remaining offset bytes.
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	444 bytes.extend(&[0u8; 2]);
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	445 } else {
46887 6d5a26e94d9e unit-tests: Fix `cargo test` on 32-bit platforms Simon Sapin <simon.sapin@octobus.net> parents: 46443 diff changeset	446 // Offset stored on 48 bits (6 bytes)
6d5a26e94d9e unit-tests: Fix `cargo test` on 32-bit platforms Simon Sapin <simon.sapin@octobus.net> parents: 46443 diff changeset	447 bytes.extend(&(self.offset as u64).to_be_bytes()[2..]);
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	448 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	449 bytes.extend(&[0u8; 2]); // Revision flags.
46887 6d5a26e94d9e unit-tests: Fix `cargo test` on 32-bit platforms Simon Sapin <simon.sapin@octobus.net> parents: 46443 diff changeset	450 bytes.extend(&(self.compressed_len as u32).to_be_bytes());
6d5a26e94d9e unit-tests: Fix `cargo test` on 32-bit platforms Simon Sapin <simon.sapin@octobus.net> parents: 46443 diff changeset	451 bytes.extend(&(self.uncompressed_len as u32).to_be_bytes());
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	452 bytes.extend(
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	453 &self.base_revision_or_base_of_delta_chain.0.to_be_bytes(),
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	454 );
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	455 bytes.extend(&self.link_revision.0.to_be_bytes());
4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	456 bytes.extend(&self.p1.0.to_be_bytes());
4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	457 bytes.extend(&self.p2.0.to_be_bytes());
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	458 bytes.extend(self.node.as_bytes());
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	459 bytes.extend(vec![0u8; 12]);
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	460 bytes
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	461 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	462 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	463
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	464 pub fn is_inline(index_bytes: &[u8]) -> bool {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	465 IndexHeader::parse(index_bytes)
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	466 .expect("too short")
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	467 .format_flags()
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	468 .is_inline()
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	469 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	470
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	471 pub fn uses_generaldelta(index_bytes: &[u8]) -> bool {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	472 IndexHeader::parse(index_bytes)
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	473 .expect("too short")
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	474 .format_flags()
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	475 .uses_generaldelta()
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	476 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	477
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	478 pub fn get_version(index_bytes: &[u8]) -> u16 {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	479 IndexHeader::parse(index_bytes)
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	480 .expect("too short")
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	481 .format_version()
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	482 }
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	483
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	484 #[test]
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	485 fn flags_when_no_inline_flag_test() {
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	486 let bytes = IndexEntryBuilder::new()
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	487 .is_first(true)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	488 .with_general_delta(false)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	489 .with_inline(false)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	490 .build();
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	491
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	492 assert!(!is_inline(&bytes));
e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	493 assert!(!uses_generaldelta(&bytes));
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	494 }
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	495
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	496 #[test]
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	497 fn flags_when_inline_flag_test() {
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	498 let bytes = IndexEntryBuilder::new()
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	499 .is_first(true)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	500 .with_general_delta(false)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	501 .with_inline(true)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	502 .build();
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	503
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	504 assert!(is_inline(&bytes));
e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	505 assert!(!uses_generaldelta(&bytes));
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	506 }
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	507
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	508 #[test]
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	509 fn flags_when_inline_and_generaldelta_flags_test() {
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	510 let bytes = IndexEntryBuilder::new()
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	511 .is_first(true)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	512 .with_general_delta(true)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	513 .with_inline(true)
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	514 .build();
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	515
49930 e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	516 assert!(is_inline(&bytes));
e98fd81bb151 rust-clippy: fix most warnings in `hg-core` Rapha?l Gom?s <rgomes@octobus.net> parents: 49926 diff changeset	517 assert!(uses_generaldelta(&bytes));
45601 900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	518 }
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	519
900b9b79b99c hg-core: make `Index` owner of its bytes (D8958#inline-14994 followup 1/2) Antoine cezar<acezar@chwitlabs.fr> parents: 45593 diff changeset	520 #[test]
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	521 fn test_offset() {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	522 let bytes = IndexEntryBuilder::new().with_offset(1).build();
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	523 let entry = IndexEntry {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	524 bytes: &bytes,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	525 offset_override: None,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	526 };
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	527
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	528 assert_eq!(entry.offset(), 1)
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	529 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	530
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	531 #[test]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	532 fn test_with_overridden_offset() {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	533 let bytes = IndexEntryBuilder::new().with_offset(1).build();
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	534 let entry = IndexEntry {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	535 bytes: &bytes,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	536 offset_override: Some(2),
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	537 };
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	538
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	539 assert_eq!(entry.offset(), 2)
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	540 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	541
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	542 #[test]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	543 fn test_compressed_len() {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	544 let bytes = IndexEntryBuilder::new().with_compressed_len(1).build();
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	545 let entry = IndexEntry {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	546 bytes: &bytes,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	547 offset_override: None,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	548 };
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	549
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	550 assert_eq!(entry.compressed_len(), 1)
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	551 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	552
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	553 #[test]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	554 fn test_uncompressed_len() {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	555 let bytes = IndexEntryBuilder::new().with_uncompressed_len(1).build();
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	556 let entry = IndexEntry {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	557 bytes: &bytes,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	558 offset_override: None,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	559 };
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	560
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	561 assert_eq!(entry.uncompressed_len(), 1)
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	562 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	563
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	564 #[test]
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	565 fn test_base_revision_or_base_of_delta_chain() {
96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	566 let bytes = IndexEntryBuilder::new()
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	567 .with_base_revision_or_base_of_delta_chain(Revision(1))
48458 96ea4db4741b rhg: fix a crash on non-generaldelta revlogs Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48457 diff changeset	568 .build();
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	569 let entry = IndexEntry {
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	570 bytes: &bytes,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	571 offset_override: None,
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	572 };
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	573
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	574 assert_eq!(entry.base_revision_or_base_of_delta_chain(), 1.into())
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	575 }
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	576
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	577 #[test]
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	578 fn link_revision_test() {
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	579 let bytes = IndexEntryBuilder::new()
4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	580 .with_link_revision(Revision(123))
4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	581 .build();
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	582
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	583 let entry = IndexEntry {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	584 bytes: &bytes,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	585 offset_override: None,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	586 };
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	587
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	588 assert_eq!(entry.link_revision(), 123.into());
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	589 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	590
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	591 #[test]
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	592 fn p1_test() {
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	593 let bytes = IndexEntryBuilder::new().with_p1(Revision(123)).build();
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	594
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	595 let entry = IndexEntry {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	596 bytes: &bytes,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	597 offset_override: None,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	598 };
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	599
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	600 assert_eq!(entry.p1(), 123.into());
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	601 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	602
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	603 #[test]
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	604 fn p2_test() {
50976 4c5f6e95df84 rust: make `Revision` a newtype Rapha?l Gom?s <rgomes@octobus.net> parents: 50975 diff changeset	605 let bytes = IndexEntryBuilder::new().with_p2(Revision(123)).build();
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	606
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	607 let entry = IndexEntry {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	608 bytes: &bytes,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	609 offset_override: None,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	610 };
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	611
50974 1928b770e3e7 rust: use the new `UncheckedRevision` everywhere applicable Rapha?l Gom?s <rgomes@octobus.net> parents: 49930 diff changeset	612 assert_eq!(entry.p2(), 123.into());
49093 2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	613 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	614
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	615 #[test]
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	616 fn node_test() {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	617 let node = Node::from_hex("0123456789012345678901234567890123456789")
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	618 .unwrap();
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	619 let bytes = IndexEntryBuilder::new().with_node(node).build();
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	620
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	621 let entry = IndexEntry {
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	622 bytes: &bytes,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	623 offset_override: None,
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	624 };
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	625
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	626 assert_eq!(*entry.hash(), node);
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	627 }
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	628
2a9a55ffe24f rust-revlog: make `IndexEntryBuilder` build a whole entry Martin von Zweigbergk <martinvonz@google.com> parents: 49092 diff changeset	629 #[test]
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	630 fn version_test() {
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	631 let bytes = IndexEntryBuilder::new()
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	632 .is_first(true)
49092 d200ecb76c72 rust-revlog: change default version from 2 to 1 in test builder Martin von Zweigbergk <martinvonz@google.com> parents: 48546 diff changeset	633 .with_version(2)
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	634 .build();
1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	635
49092 d200ecb76c72 rust-revlog: change default version from 2 to 1 in test builder Martin von Zweigbergk <martinvonz@google.com> parents: 48546 diff changeset	636 assert_eq!(get_version(&bytes), 2)
48457 1fb3615dfce2 rhg: centralize index header parsing Arseniy Alekseyev <aalekseyev@janestreet.com> parents: 48226 diff changeset	637 }
45526 26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	638 }
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	639
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	640 #[cfg(test)]
26c53ee51c68 hg-core: Add a limited read only `revlog` implementation Antoine Cezar <antoine.cezar@octobus.net> parents: diff changeset	641 pub use tests::IndexEntryBuilder;

Mercurial > public > mercurial-scm > hg

annotate rust/hg-core/src/revlog/index.rs @ 50976:4c5f6e95df84