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

annotate rust/hg-core/src/repo.rs @ 47779:cf5f8da2244c stable

rhg: Propagate permission errors when finding a repository The Rust standard library has a `Path::is_dir` method that returns false for any I/O error (such as a permission error), not just "No such file or directory". Instead add an `is_dir` function that returns false for non-directories and for "No such file or directory" errors, but propagates other I/O errors. Differential Revision: https://phab.mercurial-scm.org/D11230

author	Simon Sapin <simon.sapin@octobus.net>
date	Thu, 29 Jul 2021 12:22:25 +0200
parents	ff97e793ed36
children	696abab107b4

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;
47779 cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	9 use std::io::ErrorKind;
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	10 use std::path::{Path, PathBuf};
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	11
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	12 /// A repository on disk
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	13 pub struct Repo {
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	14 working_directory: PathBuf,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	15 dot_hg: PathBuf,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	16 store: PathBuf,
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	17 requirements: HashSet<String>,
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	18 config: Config,
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	19 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	20
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	21 #[derive(Debug, derive_more::From)]
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	22 pub enum RepoError {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	23 NotFound {
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	24 at: PathBuf,
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	25 },
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	26 #[from]
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	27 ConfigParseError(ConfigParseError),
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	28 #[from]
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	29 Other(HgError),
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	30 }
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	31
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	32 impl From<ConfigError> for RepoError {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	33 fn from(error: ConfigError) -> Self {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	34 match error {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	35 ConfigError::Parse(error) => error.into(),
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	36 ConfigError::Other(error) => error.into(),
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 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	40
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	41 /// 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	42 #[derive(Clone, Copy)]
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	43 pub struct Vfs<'a> {
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	44 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	45 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	46
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	47 impl Repo {
47411 88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	48 /// 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	49 /// its ancestors
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	50 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	51 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	52 // 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	53 // as-is.
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	54 for ancestor in current_directory.ancestors() {
47779 cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	55 if is_dir(ancestor.join(".hg"))? {
47411 88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	56 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	57 }
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	58 }
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	59 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	60 at: current_directory,
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 }
88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	63
46557 a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	64 /// 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	65 /// 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	66 /// ancestors.
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	67 ///
46557 a25033eb43b5 rhg: add limited support for the `config` sub-command Simon Sapin <simon.sapin@octobus.net> parents: 46555 diff changeset	68 /// 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	69 /// 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	70 /// 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	71 /// 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	72 pub fn find(
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	73 config: &Config,
47410 ebdef6283798 rhg: read [paths] for `--repository` value Pulkit Goyal <7895pulkit@gmail.com> parents: 47380 diff changeset	74 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	75 ) -> Result<Self, RepoError> {
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	76 if let Some(root) = explicit_path {
47779 cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	77 if is_dir(root.join(".hg"))? {
46753 97ac588b6d9e rhg: Don?t make repository path absolute too early Simon Sapin <simon.sapin@octobus.net> parents: 46748 diff changeset	78 Self::new_at_path(root.to_owned(), config)
47779 cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	79 } else if is_file(&root)? {
46743 dfd35823635b rhg: Fall back to Python for bundle repositories Simon Sapin <simon.sapin@octobus.net> parents: 46741 diff changeset	80 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	81 } else {
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	82 Err(RepoError::NotFound {
d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	83 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	84 })
46514 1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	85 }
46555 d8730ff51d5a rhg: Add support for -R and --repository command-line arguments Simon Sapin <simon.sapin@octobus.net> parents: 46545 diff changeset	86 } else {
47411 88119fffecc8 rhg: look for repository in ancestors also instead of cwd only Pulkit Goyal <7895pulkit@gmail.com> parents: 47410 diff changeset	87 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	88 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	89 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	90 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	91
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	92 /// 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	93 fn new_at_path(
f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	94 working_directory: PathBuf,
f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	95 config: &Config,
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	96 ) -> Result<Self, RepoError> {
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	97 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	98
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	99 let mut repo_config_files = Vec::new();
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"));
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	101 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	102
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	103 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	104 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	105 let relative =
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	106 reqs.contains(requirements::RELATIVE_SHARED_REQUIREMENT);
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	107 let shared =
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	108 reqs.contains(requirements::SHARED_REQUIREMENT) \|\| relative;
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	109
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	110 // From `mercurial/localrepo.py`:
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	111 //
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	112 // 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	113 // 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	114 // 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	115 // 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	116 // is not present, refer checkrequirementscompat() for that
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	117 //
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	118 // 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	119 // 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	120 // .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	121 // current repository needs to be reshared
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	122 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	123
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	124 let store_path;
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	125 if !shared {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	126 store_path = dot_hg.join("store");
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	127 } else {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	128 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	129 let mut shared_path =
e8cd519a0a34 rhg: Ignore trailing newlines in .hg/sharedpath Simon Sapin <simon.sapin@octobus.net> parents: 46652 diff changeset	130 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	131 if relative {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	132 shared_path = dot_hg.join(shared_path)
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	133 }
47779 cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	134 if !is_dir(&shared_path)? {
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	135 return Err(HgError::corrupted(format!(
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	136 ".hg/sharedpath points to nonexistent directory {}",
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	137 shared_path.display()
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	138 ))
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	139 .into());
46524 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
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	142 store_path = shared_path.join("store");
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	143
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	144 let source_is_share_safe =
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	145 requirements::load(Vfs { base: &shared_path })?
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	146 .contains(requirements::SHARESAFE_REQUIREMENT);
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	147
95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	148 if share_safe && !source_is_share_safe {
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	149 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	150 .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	151 {
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	152 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	153 "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	154 (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	155 exit_codes::ABORT,
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	156 ),
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	157 _ => HgError::unsupported("share-safe downgrade"),
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	158 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	159 .into());
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	160 } 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	161 return Err(
46748 12d59eec7f1d rhg: Align with Python on some more error messages Simon Sapin <simon.sapin@octobus.net> parents: 46743 diff changeset	162 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	163 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	164 "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	165 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	166 (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	167 exit_codes::ABORT,
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	168 ),
f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	169 _ => HgError::unsupported("share-safe upgrade"),
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	170 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	171 .into(),
46544 f031fe1c6ede rhg: Abort based on config on share-safe mismatch Simon Sapin <simon.sapin@octobus.net> parents: 46543 diff changeset	172 );
46525 95b276283b67 rhg: add support for share-safe Simon Sapin <simon.sapin@octobus.net> parents: 46524 diff changeset	173 }
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	174
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	175 if share_safe {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	176 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	177 }
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	178 }
46652 f64b6953db70 rhg: Bug fix: with share-safe, always read store requirements Simon Sapin <simon.sapin@octobus.net> parents: 46640 diff changeset	179 if share_safe {
f64b6953db70 rhg: Bug fix: with share-safe, always read store requirements Simon Sapin <simon.sapin@octobus.net> parents: 46640 diff changeset	180 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	181 }
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	182
46754 25e3dac511f0 rhg: Add support for the HGRCSKIPREPO environment variable Simon Sapin <simon.sapin@octobus.net> parents: 46753 diff changeset	183 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	184 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	185 } else {
25e3dac511f0 rhg: Add support for the HGRCSKIPREPO environment variable Simon Sapin <simon.sapin@octobus.net> parents: 46753 diff changeset	186 config.clone()
25e3dac511f0 rhg: Add support for the HGRCSKIPREPO environment variable Simon Sapin <simon.sapin@octobus.net> parents: 46753 diff changeset	187 };
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	188
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	189 let repo = Self {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	190 requirements: reqs,
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	191 working_directory,
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	192 store: store_path,
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	193 dot_hg,
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	194 config: repo_config,
46524 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
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	197 requirements::check(&repo)?;
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	198
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	199 Ok(repo)
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	200 }
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	201
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	202 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	203 &self.working_directory
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	204 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	205
46524 d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	206 pub fn requirements(&self) -> &HashSet<String> {
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	207 &self.requirements
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	208 }
d03b0601e0eb rhg: initial support for shared repositories Simon Sapin <simon.sapin@octobus.net> parents: 46514 diff changeset	209
46545 d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	210 pub fn config(&self) -> &Config {
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	211 &self.config
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	212 }
d7685105e504 rhg: Parse per-repository configuration Simon Sapin <simon.sapin@octobus.net> parents: 46544 diff changeset	213
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	214 /// 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	215 /// (`.hg/store`).
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	216 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	217 Vfs { base: &self.dot_hg }
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
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	220 /// 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	221 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	222 Vfs { base: &self.store }
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
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	225 /// For accessing the working copy
46822 c71e8d9e7f2a rhg: Initial support for the 'status' command Georges Racinet <georges.racinet@octobus.net> parents: 46754 diff changeset	226 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	227 Vfs {
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	228 base: &self.working_directory,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	229 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	230 }
46640 755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	231
47380 bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	232 pub fn has_dirstate_v2(&self) -> bool {
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	233 self.requirements
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	234 .contains(requirements::DIRSTATE_V2_REQUIREMENT)
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	235 }
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	236
46640 755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	237 pub fn dirstate_parents(
755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	238 &self,
755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	239 ) -> Result<crate::dirstate::DirstateParents, HgError> {
755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	240 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	241 if dirstate.is_empty() {
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	242 return Ok(crate::dirstate::DirstateParents::NULL);
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	243 }
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	244 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	245 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	246 } else {
bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	247 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	248 .clone()
47380 bd88b6bfd8da rhg: Add support for dirstate-v2 Simon Sapin <simon.sapin@octobus.net> parents: 46822 diff changeset	249 };
47674 ff97e793ed36 dirstate-v2: Introduce a docket file Simon Sapin <simon.sapin@octobus.net> parents: 47413 diff changeset	250 Ok(parents)
46640 755c31a1caf9 rhg: Add support for the blackbox extension Simon Sapin <simon.sapin@octobus.net> parents: 46638 diff changeset	251 }
46167 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
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	254 impl Vfs<'_> {
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	255 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	256 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	257 }
1dcd9c9975ed rust: Fold find_root and check_requirements into Repo::find Simon Sapin <simon.sapin@octobus.net> parents: 46511 diff changeset	258
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	259 pub fn read(
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	260 &self,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	261 relative_path: impl AsRef<Path>,
46511 43d63979a75e rust: use HgError in RevlogError and Vfs Simon Sapin <simon.sapin@octobus.net> parents: 46510 diff changeset	262 ) -> 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	263 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	264 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	265 }
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	266
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	267 pub fn mmap_open(
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	268 &self,
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	269 relative_path: impl AsRef<Path>,
46511 43d63979a75e rust: use HgError in RevlogError and Vfs Simon Sapin <simon.sapin@octobus.net> parents: 46510 diff changeset	270 ) -> Result<Mmap, HgError> {
43d63979a75e rust: use HgError in RevlogError and Vfs Simon Sapin <simon.sapin@octobus.net> parents: 46510 diff changeset	271 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	272 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	273 // 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	274 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	275 .when_reading_file(&path)?;
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	276 Ok(mmap)
8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	277 }
46638 1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	278
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	279 pub fn rename(
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	280 &self,
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	281 relative_from: impl AsRef<Path>,
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	282 relative_to: impl AsRef<Path>,
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	283 ) -> Result<(), HgError> {
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	284 let from = self.join(relative_from);
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	285 let to = self.join(relative_to);
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	286 std::fs::rename(&from, &to)
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	287 .with_context(\|\| IoErrorContext::RenamingFile { from, to })
1f55cd5b292f rust: Add a log file rotation utility Simon Sapin <simon.sapin@octobus.net> parents: 46632 diff changeset	288 }
46167 8a4914397d02 rust: introduce Repo and Vfs types for filesystem abstraction Simon Sapin <simon.sapin@octobus.net> parents: diff changeset	289 }
47779 cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	290
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	291 fn fs_metadata(
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	292 path: impl AsRef<Path>,
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	293 ) -> Result<Option<std::fs::Metadata>, HgError> {
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	294 let path = path.as_ref();
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	295 match std::fs::metadata(path) {
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	296 Ok(meta) => Ok(Some(meta)),
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	297 Err(error) => match error.kind() {
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	298 // TODO: when we require a Rust version where `NotADirectory` is
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	299 // stable, invert this logic and return None for it and `NotFound`
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	300 // and propagate any other error.
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	301 ErrorKind::PermissionDenied => Err(error).with_context(\|\| {
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	302 IoErrorContext::ReadingMetadata(path.to_owned())
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	303 }),
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	304 _ => Ok(None),
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	305 },
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	306 }
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	307 }
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	308
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	309 fn is_dir(path: impl AsRef<Path>) -> Result<bool, HgError> {
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	310 Ok(fs_metadata(path)?.map_or(false, \|meta\| meta.is_dir()))
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	311 }
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	312
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	313 fn is_file(path: impl AsRef<Path>) -> Result<bool, HgError> {
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	314 Ok(fs_metadata(path)?.map_or(false, \|meta\| meta.is_file()))
cf5f8da2244c rhg: Propagate permission errors when finding a repository Simon Sapin <simon.sapin@octobus.net> parents: 47674 diff changeset	315 }

Mercurial > public > mercurial-scm > hg-stable

annotate rust/hg-core/src/repo.rs @ 47779:cf5f8da2244c stable