Struct git_repository::reference::iter::Platform
source · pub struct Platform<'r> { /* private fields */ }Expand description
A platform to create iterators over references.
Implementations§
source§impl<'r> Platform<'r>
impl<'r> Platform<'r>
sourcepub fn all(&self) -> Result<Iter<'_>, Error>
pub fn all(&self) -> Result<Iter<'_>, Error>
Return an iterator over all references in the repository.
Even broken or otherwise unparsible or inaccessible references are returned and have to be handled by the caller on a case by case basis.
Examples found in repository?
src/commit.rs (line 76)
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fn names(&self, repo: &Repository) -> Result<HashMap<ObjectId, Cow<'static, BStr>>, Error> {
let platform = repo.references()?;
Ok(match self {
SelectRef::AllTags | SelectRef::AllRefs => {
let mut refs: Vec<_> = match self {
SelectRef::AllRefs => platform.all()?,
SelectRef::AllTags => platform.tags()?,
_ => unreachable!(),
}
.filter_map(Result::ok)
.filter_map(|mut r: crate::Reference<'_>| {
let target_id = r.target().try_id().map(ToOwned::to_owned);
let peeled_id = r.peel_to_id_in_place().ok()?;
let (prio, tag_time) = match target_id {
Some(target_id) if peeled_id != *target_id => {
let tag = repo.find_object(target_id).ok()?.try_into_tag().ok()?;
(1, tag.tagger().ok()??.time.seconds_since_unix_epoch)
}
_ => (0, 0),
};
(
peeled_id.inner,
prio,
tag_time,
Cow::from(r.inner.name.shorten().to_owned()),
)
.into()
})
.collect();
// By priority, then by time ascending, then lexicographically.
// More recent entries overwrite older ones due to collection into hashmap.
refs.sort_by(
|(_a_peeled_id, a_prio, a_time, a_name), (_b_peeled_id, b_prio, b_time, b_name)| {
a_prio
.cmp(b_prio)
.then_with(|| a_time.cmp(b_time))
.then_with(|| b_name.cmp(a_name))
},
);
refs.into_iter().map(|(a, _, _, b)| (a, b)).collect()
}
SelectRef::AnnotatedTags => {
let mut peeled_commits_and_tag_date: Vec<_> = platform
.tags()?
.filter_map(Result::ok)
.filter_map(|r: crate::Reference<'_>| {
// TODO: we assume direct refs for tags, which is the common case, but it doesn't have to be
// so rather follow symrefs till the first object and then peel tags after the first object was found.
let tag = r.try_id()?.object().ok()?.try_into_tag().ok()?;
let tag_time = tag
.tagger()
.ok()
.and_then(|s| s.map(|s| s.time.seconds_since_unix_epoch))
.unwrap_or(0);
let commit_id = tag.target_id().ok()?.object().ok()?.try_into_commit().ok()?.id;
Some((commit_id, tag_time, Cow::<BStr>::from(r.name().shorten().to_owned())))
})
.collect();
// Sort by time ascending, then lexicographically.
// More recent entries overwrite older ones due to collection into hashmap.
peeled_commits_and_tag_date.sort_by(|(_a_id, a_time, a_name), (_b_id, b_time, b_name)| {
a_time.cmp(b_time).then_with(|| b_name.cmp(a_name))
});
peeled_commits_and_tag_date
.into_iter()
.map(|(a, _, c)| (a, c))
.collect()
}
})
}More examples
src/revision/spec/parse/delegate/navigate.rs (line 230)
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fn find(&mut self, regex: &BStr, negated: bool) -> Option<()> {
self.unset_disambiguate_call();
self.follow_refs_to_objects_if_needed()?;
#[cfg(not(feature = "regex"))]
let matches = |message: &BStr| -> bool { message.contains_str(regex) ^ negated };
#[cfg(feature = "regex")]
let matches = match regex::bytes::Regex::new(regex.to_str_lossy().as_ref()) {
Ok(compiled) => {
let needs_regex = regex::escape(compiled.as_str()) != regex;
move |message: &BStr| -> bool {
if needs_regex {
compiled.is_match(message) ^ negated
} else {
message.contains_str(regex) ^ negated
}
}
}
Err(err) => {
self.err.push(err.into());
return None;
}
};
match self.objs[self.idx].as_mut() {
Some(objs) => {
let repo = self.repo;
let mut errors = Vec::new();
let mut replacements = Replacements::default();
for oid in objs.iter() {
match oid
.attach(repo)
.ancestors()
.sorting(Sorting::ByCommitTimeNewestFirst)
.all()
{
Ok(iter) => {
let mut matched = false;
let mut count = 0;
let commits = iter.map(|res| {
res.map_err(Error::from).and_then(|commit_id| {
commit_id.object().map_err(Error::from).map(|obj| obj.into_commit())
})
});
for commit in commits {
count += 1;
match commit {
Ok(commit) => {
if matches(commit.message_raw_sloppy()) {
replacements.push((*oid, commit.id));
matched = true;
break;
}
}
Err(err) => errors.push((*oid, err)),
}
}
if !matched {
errors.push((
*oid,
Error::NoRegexMatch {
regex: regex.into(),
commits_searched: count,
oid: oid.attach(repo).shorten_or_id(),
},
))
}
}
Err(err) => errors.push((*oid, err.into())),
}
}
handle_errors_and_replacements(&mut self.err, objs, errors, &mut replacements)
}
None => match self.repo.references() {
Ok(references) => match references.all() {
Ok(references) => {
match self
.repo
.rev_walk(
references
.peeled()
.filter_map(Result::ok)
.filter(|r| {
r.id()
.object()
.ok()
.map(|obj| obj.kind == git_object::Kind::Commit)
.unwrap_or(false)
})
.filter_map(|r| r.detach().peeled),
)
.sorting(Sorting::ByCommitTimeNewestFirst)
.all()
{
Ok(iter) => {
let mut matched = false;
let mut count = 0;
let commits = iter.map(|res| {
res.map_err(Error::from).and_then(|commit_id| {
commit_id.object().map_err(Error::from).map(|obj| obj.into_commit())
})
});
for commit in commits {
count += 1;
match commit {
Ok(commit) => {
if matches(commit.message_raw_sloppy()) {
self.objs[self.idx]
.get_or_insert_with(HashSet::default)
.insert(commit.id);
matched = true;
break;
}
}
Err(err) => self.err.push(err),
}
}
if matched {
Some(())
} else {
self.err.push(Error::NoRegexMatchAllRefs {
regex: regex.into(),
commits_searched: count,
});
None
}
}
Err(err) => {
self.err.push(err.into());
None
}
}
}
Err(err) => {
self.err.push(err.into());
None
}
},
Err(err) => {
self.err.push(err.into());
None
}
},
}
}sourcepub fn prefixed(&self, prefix: impl AsRef<Path>) -> Result<Iter<'_>, Error>
pub fn prefixed(&self, prefix: impl AsRef<Path>) -> Result<Iter<'_>, Error>
Return an iterator over all references that match the given prefix.
These are of the form refs/heads or refs/remotes/origin, and must not contain relative paths components like . or ...
Return an iterator over all references that are tags.
They are all prefixed with refs/tags.
Examples found in repository?
src/commit.rs (line 77)
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fn names(&self, repo: &Repository) -> Result<HashMap<ObjectId, Cow<'static, BStr>>, Error> {
let platform = repo.references()?;
Ok(match self {
SelectRef::AllTags | SelectRef::AllRefs => {
let mut refs: Vec<_> = match self {
SelectRef::AllRefs => platform.all()?,
SelectRef::AllTags => platform.tags()?,
_ => unreachable!(),
}
.filter_map(Result::ok)
.filter_map(|mut r: crate::Reference<'_>| {
let target_id = r.target().try_id().map(ToOwned::to_owned);
let peeled_id = r.peel_to_id_in_place().ok()?;
let (prio, tag_time) = match target_id {
Some(target_id) if peeled_id != *target_id => {
let tag = repo.find_object(target_id).ok()?.try_into_tag().ok()?;
(1, tag.tagger().ok()??.time.seconds_since_unix_epoch)
}
_ => (0, 0),
};
(
peeled_id.inner,
prio,
tag_time,
Cow::from(r.inner.name.shorten().to_owned()),
)
.into()
})
.collect();
// By priority, then by time ascending, then lexicographically.
// More recent entries overwrite older ones due to collection into hashmap.
refs.sort_by(
|(_a_peeled_id, a_prio, a_time, a_name), (_b_peeled_id, b_prio, b_time, b_name)| {
a_prio
.cmp(b_prio)
.then_with(|| a_time.cmp(b_time))
.then_with(|| b_name.cmp(a_name))
},
);
refs.into_iter().map(|(a, _, _, b)| (a, b)).collect()
}
SelectRef::AnnotatedTags => {
let mut peeled_commits_and_tag_date: Vec<_> = platform
.tags()?
.filter_map(Result::ok)
.filter_map(|r: crate::Reference<'_>| {
// TODO: we assume direct refs for tags, which is the common case, but it doesn't have to be
// so rather follow symrefs till the first object and then peel tags after the first object was found.
let tag = r.try_id()?.object().ok()?.try_into_tag().ok()?;
let tag_time = tag
.tagger()
.ok()
.and_then(|s| s.map(|s| s.time.seconds_since_unix_epoch))
.unwrap_or(0);
let commit_id = tag.target_id().ok()?.object().ok()?.try_into_commit().ok()?.id;
Some((commit_id, tag_time, Cow::<BStr>::from(r.name().shorten().to_owned())))
})
.collect();
// Sort by time ascending, then lexicographically.
// More recent entries overwrite older ones due to collection into hashmap.
peeled_commits_and_tag_date.sort_by(|(_a_id, a_time, a_name), (_b_id, b_time, b_name)| {
a_time.cmp(b_time).then_with(|| b_name.cmp(a_name))
});
peeled_commits_and_tag_date
.into_iter()
.map(|(a, _, c)| (a, c))
.collect()
}
})
}sourcepub fn local_branches(&self) -> Result<Iter<'_>, Error>
pub fn local_branches(&self) -> Result<Iter<'_>, Error>
Return an iterator over all local branches.
They are all prefixed with refs/heads.
sourcepub fn remote_branches(&self) -> Result<Iter<'_>, Error>
pub fn remote_branches(&self) -> Result<Iter<'_>, Error>
Return an iterator over all remote branches.
They are all prefixed with refs/remotes.