mercurial-scm/hg-stable: rust/hg-core/src/repo.rs annotate

annotate rust/hg-core/src/repo.rs @ 47674:ff97e793ed36

dirstate-v2: Introduce a docket file .hg/dirstate now only contains some metadata to point to a separate data file named .hg/dirstate.{}.d with a random hexadecimal identifier. For now every update creates a new data file and removes the old one, but later we?ll (usually) append to an existing file. Separating into two files allows doing the "write to a temporary file then atomically rename into destination" dance with only a small docket file, without always rewriting a lot of data. Differential Revision: https://phab.mercurial-scm.org/D11088

author	Simon Sapin <simon.sapin@octobus.net>
date	Thu, 08 Jul 2021 12:18:21 +0200
parents	6e49769b7f97
children	cf5f8da2244c

rev	line source
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	1 use crate::config::{Config, ConfigError, ConfigParseError};
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	2 use crate::errors::{HgError, IoErrorContext, IoResultExt};
47413 6e49769b7f97 rhg: add exit code to HgError::Abort() Pulkit Goyal <7895pulkit@gmail.com> parents: 47411 diff changeset	3 use crate::exit_codes;
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	4 use crate::requirements;
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	5 use crate::utils::files::get_path_from_bytes;
46753 97ac588b6d9e rhg: Don?t make repository path absolute too early Simon Sapin <simon.sapin@octobus.net> parents: 46748 diff changeset	6 use crate::utils::SliceExt;
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	7 use memmap::{Mmap, MmapOptions};
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	8 use std::collections::HashSet;
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	9 use std::path::{Path, PathBuf};
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	10
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	11 /// A repository on disk
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	12 pub struct Repo {
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	13 working_directory: PathBuf,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	14 dot_hg: PathBuf,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	15 store: PathBuf,
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	16 requirements: HashSet<String>,
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	17 config: Config,
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	18 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	19
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	20 #[derive(Debug, derive_more::From)]
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	21 pub enum RepoError {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	22 NotFound {
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	23 at: PathBuf,
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	24 },
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	25 #[from]
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	26 ConfigParseError(ConfigParseError),
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	27 #[from]
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	28 Other(HgError),
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	29 }
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	30
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	31 impl From<ConfigError> for RepoError {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	32 fn from(error: ConfigError) -> Self {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	33 match error {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	34 ConfigError::Parse(error) => error.into(),
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	35 ConfigError::Other(error) => error.into(),
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	36 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	37 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	38 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	39
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	40 /// Filesystem access abstraction for the contents of a given "base" diretory
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	41 #[derive(Clone, Copy)]
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	42 pub struct Vfs<'a> {
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	43 pub(crate) base: &'a Path,
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	44 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	45
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	46 impl Repo {
47411 88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	47 /// tries to find nearest repository root in current working directory or
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	48 /// its ancestors
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	49 pub fn find_repo_root() -> Result<PathBuf, RepoError> {
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	50 let current_directory = crate::utils::current_dir()?;
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	51 // ancestors() is inclusive: it first yields `current_directory`
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	52 // as-is.
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	53 for ancestor in current_directory.ancestors() {
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	54 if ancestor.join(".hg").is_dir() {
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	55 return Ok(ancestor.to_path_buf());
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	56 }
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	57 }
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	58 return Err(RepoError::NotFound {
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	59 at: current_directory,
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	60 });
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	61 }
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	62
46557 a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	63 /// Find a repository, either at the given path (which must contain a `.hg`
a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	64 /// sub-directory) or by searching the current directory and its
a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	65 /// ancestors.
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	66 ///
46557 a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	67 /// A method with two very different "modes" like this usually a code smell
a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	68 /// to make two methods instead, but in this case an `Option` is what rhg
a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	69 /// sub-commands get from Clap for the `-R` / `--repository` CLI argument.
a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	70 /// Having two methods would just move that `if` to almost all callers.
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	71 pub fn find(
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	72 config: &Config,
47410 ebdef6283798 rhg: read [paths] for `--repository` value Pulkit Goyal <7895pulkit@gmail.com> parents: 47380 diff changeset	73 explicit_path: Option<PathBuf>,
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	74 ) -> Result<Self, RepoError> {
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	75 if let Some(root) = explicit_path {
46753 97ac588b6d9e rhg: Don?t make repository path absolute too early Simon Sapin <simon.sapin@octobus.net> parents: 46748 diff changeset	76 if root.join(".hg").is_dir() {
97ac588b6d9e rhg: Don?t make repository path absolute too early Simon Sapin <simon.sapin@octobus.net> parents: 46748 diff changeset	77 Self::new_at_path(root.to_owned(), config)
97ac588b6d9e rhg: Don?t make repository path absolute too early Simon Sapin <simon.sapin@octobus.net> parents: 46748 diff changeset	78 } else if root.is_file() {
46743 dfd35823635b rhg: Fall back to Python for bundle repositories Simon Sapin <simon.sapin@octobus.net> parents: 46741 diff changeset	79 Err(HgError::unsupported("bundle repository").into())
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	80 } else {
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	81 Err(RepoError::NotFound {
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	82 at: root.to_owned(),
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	83 })
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	84 }
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	85 } else {
47411 88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	86 let root = Self::find_repo_root()?;
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	87 Self::new_at_path(root, config)
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	88 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	89 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	90
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	91 /// To be called after checking that `.hg` is a sub-directory
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	92 fn new_at_path(
f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	93 working_directory: PathBuf,
f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	94 config: &Config,
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	95 ) -> Result<Self, RepoError> {
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	96 let dot_hg = working_directory.join(".hg");
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	97
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	98 let mut repo_config_files = Vec::new();
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	99 repo_config_files.push(dot_hg.join("hgrc"));
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	100 repo_config_files.push(dot_hg.join("hgrc-not-shared"));
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	101
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	102 let hg_vfs = Vfs { base: &dot_hg };
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	103 let mut reqs = requirements::load_if_exists(hg_vfs)?;
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	104 let relative =
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	105 reqs.contains(requirements::RELATIVE_SHARED_REQUIREMENT);
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	106 let shared =
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	107 reqs.contains(requirements::SHARED_REQUIREMENT) \|\| relative;
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	108
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	109 // From `mercurial/localrepo.py`:
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	110 //
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	111 // if .hg/requires contains the sharesafe requirement, it means
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	112 // there exists a `.hg/store/requires` too and we should read it
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	113 // NOTE: presence of SHARESAFE_REQUIREMENT imply that store requirement
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	114 // is present. We never write SHARESAFE_REQUIREMENT for a repo if store
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	115 // is not present, refer checkrequirementscompat() for that
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	116 //
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	117 // However, if SHARESAFE_REQUIREMENT is not present, it means that the
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	118 // repository was shared the old way. We check the share source
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	119 // .hg/requires for SHARESAFE_REQUIREMENT to detect whether the
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	120 // current repository needs to be reshared
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	121 let share_safe = reqs.contains(requirements::SHARESAFE_REQUIREMENT);
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	122
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	123 let store_path;
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	124 if !shared {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	125 store_path = dot_hg.join("store");
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	126 } else {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	127 let bytes = hg_vfs.read("sharedpath")?;
46708 e8cd519a0a34 rhg: Ignore trailing newlines in .hg/sharedpath Simon Sapin <simon.sapin@octobus.net> parents: 46652 diff changeset	128 let mut shared_path =
e8cd519a0a34 rhg: Ignore trailing newlines in .hg/sharedpath Simon Sapin <simon.sapin@octobus.net> parents: 46652 diff changeset	129 get_path_from_bytes(bytes.trim_end_newlines()).to_owned();
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	130 if relative {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	131 shared_path = dot_hg.join(shared_path)
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	132 }
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	133 if !shared_path.is_dir() {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	134 return Err(HgError::corrupted(format!(
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	135 ".hg/sharedpath points to nonexistent directory {}",
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	136 shared_path.display()
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	137 ))
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	138 .into());
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	139 }
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	140
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	141 store_path = shared_path.join("store");
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	142
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	143 let source_is_share_safe =
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	144 requirements::load(Vfs { base: &shared_path })?
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	145 .contains(requirements::SHARESAFE_REQUIREMENT);
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	146
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	147 if share_safe && !source_is_share_safe {
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	148 return Err(match config
46748 12d59eec7f1d rhg: Align with Python on some more error messages Simon Sapin <simon.sapin@octobus.net> parents: 46743 diff changeset	149 .get(b"share", b"safe-mismatch.source-not-safe")
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	150 {
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	151 Some(b"abort") \| None => HgError::abort(
46748 12d59eec7f1d rhg: Align with Python on some more error messages Simon Sapin <simon.sapin@octobus.net> parents: 46743 diff changeset	152 "abort: share source does not support share-safe requirement\n\
12d59eec7f1d rhg: Align with Python on some more error messages Simon Sapin <simon.sapin@octobus.net> parents: 46743 diff changeset	153 (see `hg help config.format.use-share-safe` for more information)",
47413 6e49769b7f97 rhg: add exit code to HgError::Abort() Pulkit Goyal <7895pulkit@gmail.com> parents: 47411 diff changeset	154 exit_codes::ABORT,
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	155 ),
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	156 _ => HgError::unsupported("share-safe downgrade"),
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	157 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	158 .into());
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	159 } else if source_is_share_safe && !share_safe {
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	160 return Err(
46748 12d59eec7f1d rhg: Align with Python on some more error messages Simon Sapin <simon.sapin@octobus.net> parents: 46743 diff changeset	161 match config.get(b"share", b"safe-mismatch.source-safe") {
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	162 Some(b"abort") \| None => HgError::abort(
46748 12d59eec7f1d rhg: Align with Python on some more error messages Simon Sapin <simon.sapin@octobus.net> parents: 46743 diff changeset	163 "abort: version mismatch: source uses share-safe \
12d59eec7f1d rhg: Align with Python on some more error messages Simon Sapin <simon.sapin@octobus.net> parents: 46743 diff changeset	164 functionality while the current share does not\n\
12d59eec7f1d rhg: Align with Python on some more error messages Simon Sapin <simon.sapin@octobus.net> parents: 46743 diff changeset	165 (see `hg help config.format.use-share-safe` for more information)",
47413 6e49769b7f97 rhg: add exit code to HgError::Abort() Pulkit Goyal <7895pulkit@gmail.com> parents: 47411 diff changeset	166 exit_codes::ABORT,
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	167 ),
f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	168 _ => HgError::unsupported("share-safe upgrade"),
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	169 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	170 .into(),
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	171 );
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	172 }
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	173
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	174 if share_safe {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	175 repo_config_files.insert(0, shared_path.join("hgrc"))
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	176 }
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	177 }
46652 f64b6953db70 rhg: Bug fix: with share-safe, always read store requirements Simon Sapin <simon.sapin@octobus.net> parents: 46640 diff changeset	178 if share_safe {
f64b6953db70 rhg: Bug fix: with share-safe, always read store requirements Simon Sapin <simon.sapin@octobus.net> parents: 46640 diff changeset	179 reqs.extend(requirements::load(Vfs { base: &store_path })?);
f64b6953db70 rhg: Bug fix: with share-safe, always read store requirements Simon Sapin <simon.sapin@octobus.net> parents: 46640 diff changeset	180 }
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	181
46754 25e3dac511f0 rhg: Add support for the HGRCSKIPREPO environment variable Simon Sapin <simon.sapin@octobus.net> parents: 46753 diff changeset	182 let repo_config = if std::env::var_os("HGRCSKIPREPO").is_none() {
25e3dac511f0 rhg: Add support for the HGRCSKIPREPO environment variable Simon Sapin <simon.sapin@octobus.net> parents: 46753 diff changeset	183 config.combine_with_repo(&repo_config_files)?
25e3dac511f0 rhg: Add support for the HGRCSKIPREPO environment variable Simon Sapin <simon.sapin@octobus.net> parents: 46753 diff changeset	184 } else {
25e3dac511f0 rhg: Add support for the HGRCSKIPREPO environment variable Simon Sapin <simon.sapin@octobus.net> parents: 46753 diff changeset	185 config.clone()
25e3dac511f0 rhg: Add support for the HGRCSKIPREPO environment variable Simon Sapin <simon.sapin@octobus.net> parents: 46753 diff changeset	186 };
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	187
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	188 let repo = Self {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	189 requirements: reqs,
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	190 working_directory,
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	191 store: store_path,
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	192 dot_hg,
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	193 config: repo_config,
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	194 };
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	195
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	196 requirements::check(&repo)?;
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	197
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	198 Ok(repo)
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	199 }
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	200
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	201 pub fn working_directory_path(&self) -> &Path {
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	202 &self.working_directory
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	203 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	204
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	205 pub fn requirements(&self) -> &HashSet<String> {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	206 &self.requirements
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	207 }
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	208
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	209 pub fn config(&self) -> &Config {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	210 &self.config
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	211 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	212
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	213 /// For accessing repository files (in `.hg`), except for the store
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	214 /// (`.hg/store`).
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	215 pub fn hg_vfs(&self) -> Vfs<'_> {
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	216 Vfs { base: &self.dot_hg }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	217 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	218
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	219 /// For accessing repository store files (in `.hg/store`)
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	220 pub fn store_vfs(&self) -> Vfs<'_> {
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	221 Vfs { base: &self.store }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	222 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	223
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	224 /// For accessing the working copy
46822 c71e8d9e7f2a rhg: Initial support for the 'status' command Georges Racinet <georges.racinet@octobus.net> parents: 46754 diff changeset	225 pub fn working_directory_vfs(&self) -> Vfs<'_> {
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	226 Vfs {
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	227 base: &self.working_directory,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	228 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	229 }
46640 755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	230
47380 bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	231 pub fn has_dirstate_v2(&self) -> bool {
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	232 self.requirements
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	233 .contains(requirements::DIRSTATE_V2_REQUIREMENT)
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	234 }
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	235
46640 755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	236 pub fn dirstate_parents(
755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	237 &self,
755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	238 ) -> Result<crate::dirstate::DirstateParents, HgError> {
755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	239 let dirstate = self.hg_vfs().mmap_open("dirstate")?;
47380 bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	240 if dirstate.is_empty() {
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	241 return Ok(crate::dirstate::DirstateParents::NULL);
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	242 }
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	243 let parents = if self.has_dirstate_v2() {
47674 ff97e793ed36 dirstate-v2: Introduce a docket file Simon Sapin <simon.sapin@octobus.net> parents: 47413 diff changeset	244 crate::dirstate_tree::on_disk::read_docket(&dirstate)?.parents()
47380 bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	245 } else {
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	246 crate::dirstate::parsers::parse_dirstate_parents(&dirstate)?
47674 ff97e793ed36 dirstate-v2: Introduce a docket file Simon Sapin <simon.sapin@octobus.net> parents: 47413 diff changeset	247 .clone()
47380 bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	248 };
47674 ff97e793ed36 dirstate-v2: Introduce a docket file Simon Sapin <simon.sapin@octobus.net> parents: 47413 diff changeset	249 Ok(parents)
46640 755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	250 }
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	251 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	252
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	253 impl Vfs<'_> {
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	254 pub fn join(&self, relative_path: impl AsRef<Path>) -> PathBuf {
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	255 self.base.join(relative_path)
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	256 }
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	257
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	258 pub fn read(
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	259 &self,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	260 relative_path: impl AsRef<Path>,
46511 43d63979a75e rust: use HgError in RevlogError and Vfs Simon Sapin <simon.sapin@octobus.net> parents: 46510 diff changeset	261 ) -> Result<Vec<u8>, HgError> {
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	262 let path = self.join(relative_path);
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	263 std::fs::read(&path).when_reading_file(&path)
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	264 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	265
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	266 pub fn mmap_open(
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	267 &self,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	268 relative_path: impl AsRef<Path>,
46511 43d63979a75e rust: use HgError in RevlogError and Vfs Simon Sapin <simon.sapin@octobus.net> parents: 46510 diff changeset	269 ) -> Result<Mmap, HgError> {
43d63979a75e rust: use HgError in RevlogError and Vfs Simon Sapin <simon.sapin@octobus.net> parents: 46510 diff changeset	270 let path = self.base.join(relative_path);
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	271 let file = std::fs::File::open(&path).when_reading_file(&path)?;
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	272 // TODO: what are the safety requirements here?
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	273 let mmap = unsafe { MmapOptions::new().map(&file) }
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	274 .when_reading_file(&path)?;
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	275 Ok(mmap)
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	276 }
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	277
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	278 pub fn rename(
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	279 &self,
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	280 relative_from: impl AsRef<Path>,
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	281 relative_to: impl AsRef<Path>,
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	282 ) -> Result<(), HgError> {
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	283 let from = self.join(relative_from);
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	284 let to = self.join(relative_to);
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	285 std::fs::rename(&from, &to)
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	286 .with_context(\|\| IoErrorContext::RenamingFile { from, to })
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	287 }
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	288 }

Mercurial > public > mercurial-scm > hg-stable

annotate rust/hg-core/src/repo.rs @ 47674:ff97e793ed36