Struct hg_parser::MercurialRepository

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pub struct MercurialRepository { /* private fields */ }
Expand description

Mercurial repository. Top-level structure for access to change sets and tags.

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impl MercurialRepository

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pub fn open<P: AsRef<Path>>( root_path: P ) -> Result<MercurialRepository, ErrorKind>

Opens MercurialRepository at root_path.

Examples found in repository?
examples/git-fast-import.rs (line 16)
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fn export_repo<P: AsRef<Path>>(path: P) -> Result<(), Error> {
    let start = Instant::now();
    let repo = MercurialRepository::open(path)?;

    let stdout = std::io::stdout();
    let mut writer = stdout.lock();

    for changeset in &repo {
        let revision = changeset.revision;
        eprintln!("rev: {:?}", revision);

        let header = &changeset.header;
        let mut branch = None;
        let mut closed = false;
        for (key, value) in &header.extra {
            if key == b"branch" {
                branch = Some(value.as_slice());
            }

            if key == b"close" && value == b"1" {
                closed = true;
            }
        }

        let mut branch: Vec<_> = branch.unwrap_or_else(|| b"master").into();
        for b in branch.iter_mut() {
            if *b == b' ' {
                *b = b'-';
            }
        }

        let user = String::from_utf8_lossy(&header.user);
        let desc = String::from_utf8_lossy(&header.comment);

        let time = header.time.timestamp_secs();
        let timezone = header.time.tz_offset_secs();
        let tz = format!("{:+03}{:02}", -timezone / 3600, ((-timezone % 3600) / 60));

        write!(writer, "reset refs/heads/")?;
        writer.write_all(&mut branch)?;
        write!(writer, "\ncommit refs/heads/")?;
        writer.write_all(&mut branch)?;
        writeln!(writer, "\nmark :{}", mark(revision))?;

        writeln!(writer, "author {} {} {}", user, time, tz)?;
        writeln!(writer, "committer {} {} {}", user, time, tz)?;
        writeln!(writer, "data {}", desc.len() + 1)?;
        writeln!(writer, "{}\n", desc)?;

        match (header.p1, header.p2) {
            (Some(p1), Some(p2)) => {
                writeln!(writer, "from :{}", mark(p1))?;
                writeln!(writer, "merge :{}", mark(p2))?;
            }
            (Some(p), None) | (None, Some(p)) => {
                writeln!(writer, "from :{}", mark(p))?;
            }
            _ => (),
        }

        for mut file in changeset.files {
            match (file.data, file.manifest_entry) {
                (None, None) => {
                    write!(writer, "D ")?;
                    writer.write_all(&mut file.path)?;
                    writeln!(writer)?;
                }
                (Some(data), Some(manifest_entry)) => {
                    write!(
                        writer,
                        "M {} inline ",
                        match manifest_entry.details {
                            ManifestEntryDetails::File(FileType::Symlink) => "120000",
                            ManifestEntryDetails::File(FileType::Executable) => "100755",
                            ManifestEntryDetails::Tree
                            | ManifestEntryDetails::File(FileType::Regular) => "100644",
                        }
                    )?;
                    writer.write_all(&mut file.path)?;
                    let data = file_content(&data);
                    writeln!(writer, "\ndata {}", data.len())?;
                    writer.write_all(&data[..])?;
                }
                _ => panic!("Wrong file data!"),
            }
        }

        if closed {
            write!(writer, "reset refs/tags/archive/")?;
            writer.write_all(&mut branch)?;
            writeln!(writer, "\nfrom :{}\n", mark(revision))?;

            write!(writer, "reset refs/heads/")?;
            writer.write_all(&mut branch)?;
            writeln!(writer, "\nfrom 0000000000000000000000000000000000000000\n")?;
        }
    }

    for (rev, tag) in repo.tags().unwrap() {
        eprintln!("export tag {}", tag.name);
        writeln!(writer, "reset refs/tags/{}", tag.name).unwrap();
        writeln!(writer, "from :{}", mark(rev)).unwrap();
        writeln!(writer).unwrap();
    }

    eprintln!("Done. Elapsed: {:?}", start.elapsed());
    Ok(())
}
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pub fn last_rev(&self) -> Revision

Last Revision in revision log.

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pub fn iter(&self) -> ChangesetIter<'_> ⓘ

Changeset iterator other all revisions in log.

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pub fn header_iter(&self) -> ChangesetHeaderIter<'_> ⓘ

Changeset header iterator other all revisions in log.

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pub fn range_iter<RR: Into<RevisionRange>>( &self, revisions_range: RR ) -> ChangesetIter<'_> ⓘ

Changeset iterator other range of revisions in log.

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pub fn range_header_iter<RR: Into<RevisionRange>>( &self, revisions_range: RR ) -> ChangesetHeaderIter<'_> ⓘ

Changeset header iterator other range of revisions in log.

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pub fn tags(&self) -> Result<BTreeMap<Revision, MercurialTag>, ErrorKind>

List tags in repository. Tags read from .hg/cache/tags2-visible or .hgtags.

Examples found in repository?
examples/git-fast-import.rs (line 112)
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fn export_repo<P: AsRef<Path>>(path: P) -> Result<(), Error> {
    let start = Instant::now();
    let repo = MercurialRepository::open(path)?;

    let stdout = std::io::stdout();
    let mut writer = stdout.lock();

    for changeset in &repo {
        let revision = changeset.revision;
        eprintln!("rev: {:?}", revision);

        let header = &changeset.header;
        let mut branch = None;
        let mut closed = false;
        for (key, value) in &header.extra {
            if key == b"branch" {
                branch = Some(value.as_slice());
            }

            if key == b"close" && value == b"1" {
                closed = true;
            }
        }

        let mut branch: Vec<_> = branch.unwrap_or_else(|| b"master").into();
        for b in branch.iter_mut() {
            if *b == b' ' {
                *b = b'-';
            }
        }

        let user = String::from_utf8_lossy(&header.user);
        let desc = String::from_utf8_lossy(&header.comment);

        let time = header.time.timestamp_secs();
        let timezone = header.time.tz_offset_secs();
        let tz = format!("{:+03}{:02}", -timezone / 3600, ((-timezone % 3600) / 60));

        write!(writer, "reset refs/heads/")?;
        writer.write_all(&mut branch)?;
        write!(writer, "\ncommit refs/heads/")?;
        writer.write_all(&mut branch)?;
        writeln!(writer, "\nmark :{}", mark(revision))?;

        writeln!(writer, "author {} {} {}", user, time, tz)?;
        writeln!(writer, "committer {} {} {}", user, time, tz)?;
        writeln!(writer, "data {}", desc.len() + 1)?;
        writeln!(writer, "{}\n", desc)?;

        match (header.p1, header.p2) {
            (Some(p1), Some(p2)) => {
                writeln!(writer, "from :{}", mark(p1))?;
                writeln!(writer, "merge :{}", mark(p2))?;
            }
            (Some(p), None) | (None, Some(p)) => {
                writeln!(writer, "from :{}", mark(p))?;
            }
            _ => (),
        }

        for mut file in changeset.files {
            match (file.data, file.manifest_entry) {
                (None, None) => {
                    write!(writer, "D ")?;
                    writer.write_all(&mut file.path)?;
                    writeln!(writer)?;
                }
                (Some(data), Some(manifest_entry)) => {
                    write!(
                        writer,
                        "M {} inline ",
                        match manifest_entry.details {
                            ManifestEntryDetails::File(FileType::Symlink) => "120000",
                            ManifestEntryDetails::File(FileType::Executable) => "100755",
                            ManifestEntryDetails::Tree
                            | ManifestEntryDetails::File(FileType::Regular) => "100644",
                        }
                    )?;
                    writer.write_all(&mut file.path)?;
                    let data = file_content(&data);
                    writeln!(writer, "\ndata {}", data.len())?;
                    writer.write_all(&data[..])?;
                }
                _ => panic!("Wrong file data!"),
            }
        }

        if closed {
            write!(writer, "reset refs/tags/archive/")?;
            writer.write_all(&mut branch)?;
            writeln!(writer, "\nfrom :{}\n", mark(revision))?;

            write!(writer, "reset refs/heads/")?;
            writer.write_all(&mut branch)?;
            writeln!(writer, "\nfrom 0000000000000000000000000000000000000000\n")?;
        }
    }

    for (rev, tag) in repo.tags().unwrap() {
        eprintln!("export tag {}", tag.name);
        writeln!(writer, "reset refs/tags/{}", tag.name).unwrap();
        writeln!(writer, "from :{}", mark(rev)).unwrap();
        writeln!(writer).unwrap();
    }

    eprintln!("Done. Elapsed: {:?}", start.elapsed());
    Ok(())
}

Trait Implementations§

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impl Debug for MercurialRepository

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl From<MercurialRepository> for CachedMercurialRepository

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fn from(repository: MercurialRepository) -> Self

Converts to this type from the input type.
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impl<'a> IntoIterator for &'a MercurialRepository

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type Item = Changeset

The type of the elements being iterated over.
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type IntoIter = ChangesetIter<'a>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more

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where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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Returns the argument unchanged.

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where U: From<T>,

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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Dereferences the given pointer. Read more
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