rust/hg-core/src/matchers.rs

50888:76387f79befe

    fn is_exact(&self) -> bool {
        true
    }
}

/// Matches files that are included in the ignore rules.
/// ```
/// use hg::{
///     matchers::{IncludeMatcher, Matcher},
///     IgnorePattern,

            VisitChildrenSet::Empty
        );
    }

    #[test]
    fn test_includematcher() {
        // VisitchildrensetPrefix
        let matcher = IncludeMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::RelPath,
            b"dir/subdir",

50889:f874342fa568

    fn is_exact(&self) -> bool {
        true
    }
}

/// Matches a set of (kind, pat, source) against a 'root' directory.
/// (Currently the 'root' directory is effectively always empty)
/// ```
/// use hg::{
///     matchers::{PatternMatcher, Matcher},
///     IgnorePattern,
///     PatternSyntax,
///     utils::hg_path::{HgPath, HgPathBuf}
/// };
/// use std::collections::HashSet;
/// use std::path::Path;
/// ///
/// let ignore_patterns : Vec<IgnorePattern> =
///     vec![IgnorePattern::new(PatternSyntax::Regexp, br".*\.c$", Path::new("")),
///          IgnorePattern::new(PatternSyntax::Path, b"foo/a", Path::new("")),
///          IgnorePattern::new(PatternSyntax::RelPath, b"b", Path::new("")),
///          IgnorePattern::new(PatternSyntax::Glob, b"*.h", Path::new("")),
///     ];
/// let matcher = PatternMatcher::new(ignore_patterns).unwrap();
/// ///
/// assert_eq!(matcher.matches(HgPath::new(b"main.c")), true); // matches re:.*\.c$
/// assert_eq!(matcher.matches(HgPath::new(b"b.txt")), false);
/// assert_eq!(matcher.matches(HgPath::new(b"foo/a")), true); // matches path:foo/a
/// assert_eq!(matcher.matches(HgPath::new(b"a")), false); // does not match path:b, since 'root' is 'foo'
/// assert_eq!(matcher.matches(HgPath::new(b"b")), true); // matches relpath:b, since 'root' is 'foo'
/// assert_eq!(matcher.matches(HgPath::new(b"lib.h")), true); // matches glob:*.h
/// assert_eq!(matcher.file_set().unwrap(),
///            &HashSet::from([HgPathBuf::from_bytes(b""), HgPathBuf::from_bytes(b"foo/a"),
///                            HgPathBuf::from_bytes(b""), HgPathBuf::from_bytes(b"b")]));
/// assert_eq!(matcher.exact_match(HgPath::new(b"foo/a")), true);
/// assert_eq!(matcher.exact_match(HgPath::new(b"b")), true);
/// assert_eq!(matcher.exact_match(HgPath::new(b"lib.h")), false); // exact matches are for (rel)path kinds
/// ```
pub struct PatternMatcher<'a> {
    patterns: Vec<u8>,
    match_fn: IgnoreFnType<'a>,
    /// Whether all the patterns match a prefix (i.e. recursively)
    prefix: bool,
    files: HashSet<HgPathBuf>,
    dirs: DirsMultiset,
}

impl core::fmt::Debug for PatternMatcher<'_> {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        f.debug_struct("PatternMatcher")
            .field("patterns", &String::from_utf8_lossy(&self.patterns))
            .field("prefix", &self.prefix)
            .field("files", &self.files)
            .field("dirs", &self.dirs)
            .finish()
    }
}

impl<'a> PatternMatcher<'a> {
    pub fn new(ignore_patterns: Vec<IgnorePattern>) -> PatternResult<Self> {
        let (files, _) = roots_and_dirs(&ignore_patterns);
        let dirs = DirsMultiset::from_manifest(&files)?;
        let files: HashSet<HgPathBuf> = HashSet::from_iter(files.into_iter());

        let prefix = ignore_patterns.iter().all(|k| {
            matches!(k.syntax, PatternSyntax::Path | PatternSyntax::RelPath)
        });
        let (patterns, match_fn) = build_match(ignore_patterns, b"$")?;

        Ok(Self {
            patterns,
            match_fn,
            prefix,
            files,
            dirs,
        })
    }
}

impl<'a> Matcher for PatternMatcher<'a> {
    fn file_set(&self) -> Option<&HashSet<HgPathBuf>> {
        Some(&self.files)
    }

    fn exact_match(&self, filename: &HgPath) -> bool {
        self.files.contains(filename)
    }

    fn matches(&self, filename: &HgPath) -> bool {
        if self.files.contains(filename) {
            return true;
        }
        (self.match_fn)(filename)
    }

    fn visit_children_set(&self, directory: &HgPath) -> VisitChildrenSet {
        if self.prefix && self.files.contains(directory) {
            return VisitChildrenSet::Recursive;
        }
        let path_or_parents_in_set = find_dirs(directory)
            .any(|parent_dir| self.files.contains(parent_dir));
        if self.dirs.contains(directory) || path_or_parents_in_set {
            VisitChildrenSet::This
        } else {
            VisitChildrenSet::Empty
        }
    }

    fn matches_everything(&self) -> bool {
        false
    }

    fn is_exact(&self) -> bool {
        false
    }
}

/// Matches files that are included in the ignore rules.
/// ```
/// use hg::{
///     matchers::{IncludeMatcher, Matcher},
///     IgnorePattern,

            VisitChildrenSet::Empty
        );
    }

    #[test]
    fn test_patternmatcher() {
        // VisitdirPrefix
        let m = PatternMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::Path,
            b"dir/subdir",
            Path::new(""),
        )])
        .unwrap();
        assert_eq!(
            m.visit_children_set(HgPath::new(b"")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir")),
            VisitChildrenSet::Recursive
        );
        // OPT: This should probably be Recursive if its parent is?
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir/x")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"folder")),
            VisitChildrenSet::Empty
        );

        // VisitchildrensetPrefix
        let m = PatternMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::Path,
            b"dir/subdir",
            Path::new(""),
        )])
        .unwrap();
        assert_eq!(
            m.visit_children_set(HgPath::new(b"")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir")),
            VisitChildrenSet::Recursive
        );
        // OPT: This should probably be Recursive if its parent is?
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir/x")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"folder")),
            VisitChildrenSet::Empty
        );

        // VisitdirRootfilesin
        let m = PatternMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::RootFiles,
            b"dir/subdir",
            Path::new(""),
        )])
        .unwrap();
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir/x")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"folder")),
            VisitChildrenSet::Empty
        );
        // FIXME: These should probably be This.
        assert_eq!(
            m.visit_children_set(HgPath::new(b"")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir")),
            VisitChildrenSet::Empty
        );

        // VisitchildrensetRootfilesin
        let m = PatternMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::RootFiles,
            b"dir/subdir",
            Path::new(""),
        )])
        .unwrap();
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir/x")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"folder")),
            VisitChildrenSet::Empty
        );
        // FIXME: These should probably be {'dir'}, {'subdir'} and This,
        // respectively, or at least This for all three.
        assert_eq!(
            m.visit_children_set(HgPath::new(b"")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir")),
            VisitChildrenSet::Empty
        );

        // VisitdirGlob
        let m = PatternMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::Glob,
            b"dir/z*",
            Path::new(""),
        )])
        .unwrap();
        assert_eq!(
            m.visit_children_set(HgPath::new(b"")),
            VisitChildrenSet::This
        );
        // FIXME: This probably should be This
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"folder")),
            VisitChildrenSet::Empty
        );
        // OPT: these should probably be False.
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir/x")),
            VisitChildrenSet::This
        );

        // VisitchildrensetGlob
        let m = PatternMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::Glob,
            b"dir/z*",
            Path::new(""),
        )])
        .unwrap();
        assert_eq!(
            m.visit_children_set(HgPath::new(b"")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"folder")),
            VisitChildrenSet::Empty
        );
        // FIXME: This probably should be This
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir")),
            VisitChildrenSet::Empty
        );
        // OPT: these should probably be Empty
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir/x")),
            VisitChildrenSet::This
        );

        // VisitdirFilepath
        let m = PatternMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::FilePath,
            b"dir/z",
            Path::new(""),
        )])
        .unwrap();
        assert_eq!(
            m.visit_children_set(HgPath::new(b"")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"folder")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir/x")),
            VisitChildrenSet::Empty
        );

        // VisitchildrensetFilepath
        let m = PatternMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::FilePath,
            b"dir/z",
            Path::new(""),
        )])
        .unwrap();
        assert_eq!(
            m.visit_children_set(HgPath::new(b"")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"folder")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir")),
            VisitChildrenSet::This
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir")),
            VisitChildrenSet::Empty
        );
        assert_eq!(
            m.visit_children_set(HgPath::new(b"dir/subdir/x")),
            VisitChildrenSet::Empty
        );
    }

    #[test]
    fn test_includematcher() {
        // VisitchildrensetPrefix
        let matcher = IncludeMatcher::new(vec![IgnorePattern::new(
            PatternSyntax::RelPath,
            b"dir/subdir",