rust/hg-core/src/dirstate_tree/status.rs

48191:a5a673ec8f6f

use crate::dirstate::status::IgnoreFnType;
use crate::dirstate_tree::dirstate_map::BorrowedPath;
use crate::dirstate_tree::dirstate_map::ChildNodesRef;
use crate::dirstate_tree::dirstate_map::DirstateMap;
use crate::dirstate_tree::dirstate_map::NodeData;
use crate::dirstate_tree::dirstate_map::NodeRef;
use crate::dirstate_tree::on_disk::DirstateV2ParseError;
use crate::dirstate_tree::on_disk::Timestamp;
use crate::matchers::get_ignore_function;
use crate::matchers::Matcher;
use crate::utils::files::get_bytes_from_os_string;
use crate::utils::files::get_path_from_bytes;
use crate::utils::hg_path::HgPath;

    /// `symlink_metadata` for child nodes that exist in the dirstate and don’t
    /// need to call `read_dir`.
    fn can_skip_fs_readdir(
        &self,
        directory_metadata: Option<&std::fs::Metadata>,
        cached_directory_mtime: Option<&Timestamp>,
    ) -> bool {
        if !self.options.list_unknown && !self.options.list_ignored {
            // All states that we care about listing have corresponding
            // dirstate entries.
            // This happens for example with `hg status -mard`.

                // by a previous run of the `status` algorithm which found this
                // directory eligible for `read_dir` caching.
                if let Some(meta) = directory_metadata {
                    if let Ok(current_mtime) = meta.modified() {
                        let current_mtime = Timestamp::from(current_mtime);
                        if current_mtime == *cached_mtime {
                            // The mtime of that directory has not changed
                            // since then, which means that the results of
                            // `read_dir` should also be unchanged.
                            return true;
                        }

        has_ignored_ancestor: bool,
        dirstate_nodes: ChildNodesRef<'tree, 'on_disk>,
        directory_hg_path: &BorrowedPath<'tree, 'on_disk>,
        directory_fs_path: &Path,
        directory_metadata: Option<&std::fs::Metadata>,
        cached_directory_mtime: Option<&Timestamp>,
        is_at_repo_root: bool,
    ) -> Result<bool, DirstateV2ParseError> {
        if self.can_skip_fs_readdir(directory_metadata, cached_directory_mtime)
        {
            dirstate_nodes

                    //
                    // We deem this scenario (unlike the previous one) to be
                    // unlikely enough in practice.
                    let timestamp = directory_mtime.into();
                    let cached = dirstate_node.cached_directory_mtime();
                    if cached != Some(&timestamp) {
                        let hg_path = dirstate_node
                            .full_path_borrowed(self.dmap.on_disk)?
                            .detach_from_tree();
                        self.new_cachable_directories
                            .lock()

48192:d2f760c2c91c

use crate::dirstate::entry::Timestamp;
use crate::dirstate::status::IgnoreFnType;
use crate::dirstate_tree::dirstate_map::BorrowedPath;
use crate::dirstate_tree::dirstate_map::ChildNodesRef;
use crate::dirstate_tree::dirstate_map::DirstateMap;
use crate::dirstate_tree::dirstate_map::NodeData;
use crate::dirstate_tree::dirstate_map::NodeRef;
use crate::dirstate_tree::on_disk::DirstateV2ParseError;
use crate::matchers::get_ignore_function;
use crate::matchers::Matcher;
use crate::utils::files::get_bytes_from_os_string;
use crate::utils::files::get_path_from_bytes;
use crate::utils::hg_path::HgPath;

    /// `symlink_metadata` for child nodes that exist in the dirstate and don’t
    /// need to call `read_dir`.
    fn can_skip_fs_readdir(
        &self,
        directory_metadata: Option<&std::fs::Metadata>,
        cached_directory_mtime: Option<Timestamp>,
    ) -> bool {
        if !self.options.list_unknown && !self.options.list_ignored {
            // All states that we care about listing have corresponding
            // dirstate entries.
            // This happens for example with `hg status -mard`.

                // by a previous run of the `status` algorithm which found this
                // directory eligible for `read_dir` caching.
                if let Some(meta) = directory_metadata {
                    if let Ok(current_mtime) = meta.modified() {
                        let current_mtime = Timestamp::from(current_mtime);
                        if current_mtime == cached_mtime {
                            // The mtime of that directory has not changed
                            // since then, which means that the results of
                            // `read_dir` should also be unchanged.
                            return true;
                        }

        has_ignored_ancestor: bool,
        dirstate_nodes: ChildNodesRef<'tree, 'on_disk>,
        directory_hg_path: &BorrowedPath<'tree, 'on_disk>,
        directory_fs_path: &Path,
        directory_metadata: Option<&std::fs::Metadata>,
        cached_directory_mtime: Option<Timestamp>,
        is_at_repo_root: bool,
    ) -> Result<bool, DirstateV2ParseError> {
        if self.can_skip_fs_readdir(directory_metadata, cached_directory_mtime)
        {
            dirstate_nodes

                    //
                    // We deem this scenario (unlike the previous one) to be
                    // unlikely enough in practice.
                    let timestamp = directory_mtime.into();
                    let cached = dirstate_node.cached_directory_mtime();
                    if cached != Some(timestamp) {
                        let hg_path = dirstate_node
                            .full_path_borrowed(self.dmap.on_disk)?
                            .detach_from_tree();
                        self.new_cachable_directories
                            .lock()