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git fetch: limit export of deleted refs to provided globs

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This commit is contained in:
Ilya Grigoriev 2023-06-29 19:20:00 -07:00
parent 371e7f46e2
commit 597a74d51b
1 changed files with 41 additions and 33 deletions
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74
lib/src/git.rs
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@ -499,6 +499,31 @@ pub fn fetch(
callbacks: RemoteCallbacks<'_>,
git_settings: &GitSettings,
) -> Result<Option<String>, GitFetchError> {
let branch_regex = if let Some(globs) = branch_name_globs {
let result = regex::RegexSet::new(
globs
.iter()
.map(|glob| format!("^{}$", glob.replace('*', ".*"))),
)
.map_err(|_| GitFetchError::InvalidGlob)?;
tracing::debug!(?globs, ?result, "globs as regex");
Some(result)
} else {
None
};
let git_ref_filter = |ref_name: &RefName| -> bool {
if let Some(branch_regex) = &branch_regex {
match ref_name {
RefName::RemoteBranch { branch, remote } => {
remote == remote_name && branch_regex.is_match(branch)
}
RefName::LocalBranch(..) | RefName::Tag(..) | RefName::GitRef(..) => false,
}
} else {
true
}
};
// In non-colocated repositories, it's possible that `jj branch forget` was run
// at some point and no `jj git export` happened since.
//
@ -532,14 +557,16 @@ pub fn fetch(
// TODO: Inform the user if the export failed? In most cases, export is not
// essential for fetch to work.
let _ = export_some_refs(mut_repo, git_repo, |ref_name| {
// Short-term TODO: filter this by the glob filter
matches!(
ref_name,
RefName::RemoteBranch { branch, remote:_ }
if !nonempty_branches.contains(branch)
)
git_ref_filter(ref_name)
&& matches!(
ref_name,
RefName::RemoteBranch { branch, remote:_ }
if !nonempty_branches.contains(branch)
)
});
// Perform a `git fetch` on the local git repo, updating the remote-tracking
// branches in the git repo.
let mut remote =
git_repo
.find_remote(remote_name)
@ -592,34 +619,15 @@ pub fn fetch(
}
tracing::debug!("remote.disconnect");
remote.disconnect()?;
// `import_some_refs` will import the remote-tracking branches into the jj repo
// and update jj's local branches.
tracing::debug!("import_refs");
if let Some(globs) = branch_name_globs {
let branch_regex = regex::RegexSet::new(
globs
.iter()
.map(|glob| format!("^{}$", glob.replace('*', ".*"))),
)
.map_err(|_| GitFetchError::InvalidGlob)?;
tracing::debug!(?globs, ?branch_regex, "globs as regex");
import_some_refs(
mut_repo,
git_repo,
git_settings,
|ref_name: &RefName| -> bool {
match ref_name {
RefName::RemoteBranch { branch, remote } => {
remote == remote_name && branch_regex.is_match(branch)
}
RefName::LocalBranch(..) | RefName::Tag(..) | RefName::GitRef(..) => false,
}
},
)
} else {
import_refs(mut_repo, git_repo, git_settings)
}
.map_err(|err| match err {
GitImportError::InternalGitError(source) => GitFetchError::InternalGitError(source),
})?;
import_some_refs(mut_repo, git_repo, git_settings, git_ref_filter).map_err(
|err| match err {
GitImportError::InternalGitError(source) => GitFetchError::InternalGitError(source),
},
)?;
Ok(default_branch)
}