mirror of
https://github.com/SkinnyMind/libgit2dart.git
synced 2025-05-04 20:29:08 -04:00
91 lines
3 KiB
Dart
91 lines
3 KiB
Dart
import 'dart:ffi';
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import 'bindings/libgit2_bindings.dart';
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import 'bindings/revparse.dart' as bindings;
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import 'commit.dart';
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import 'reference.dart';
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import 'repository.dart';
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import 'git_types.dart';
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class RevParse {
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/// Finds a single object and intermediate reference (if there is one) by a [spec] revision string.
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///
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/// See `man gitrevisions`, or https://git-scm.com/docs/git-rev-parse.html#_specifying_revisions
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/// for information on the syntax accepted.
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///
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/// In some cases (@{<-n>} or <branchname>@{upstream}), the expression may point to an
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/// intermediate reference. When such expressions are being passed in, reference_out will be
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/// valued as well.
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///
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/// The returned object and reference should be released when no longer needed.
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///
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/// Throws a [LibGit2Error] if error occured.
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RevParse.ext(Repository repo, String spec) {
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final pointers = bindings.revParseExt(repo.pointer, spec);
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object = Commit(pointers[0].cast<git_commit>());
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if (pointers.length == 2) {
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reference = Reference(repo.pointer, pointers[1].cast<git_reference>());
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} else {
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reference = null;
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}
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}
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/// Object found by a revision string.
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late final Commit object;
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/// Intermediate reference found by a revision string.
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late final Reference? reference;
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/// Finds a single object, as specified by a [spec] revision string.
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/// See `man gitrevisions`, or https://git-scm.com/docs/git-rev-parse.html#_specifying_revisions
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/// for information on the syntax accepted.
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///
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/// The returned object should be released when no longer needed.
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///
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/// Throws a [LibGit2Error] if error occured.
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static Commit single(Repository repo, String spec) {
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return Commit(bindings.revParseSingle(repo.pointer, spec).cast());
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}
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/// Parses a revision string for from, to, and intent.
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///
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/// See `man gitrevisions` or https://git-scm.com/docs/git-rev-parse.html#_specifying_revisions
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/// for information on the syntax accepted.
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///
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/// Throws a [LibGit2Error] if error occured.
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static RevSpec range(Repository repo, String spec) {
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return RevSpec(bindings.revParse(repo.pointer, spec));
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}
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}
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class RevSpec {
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/// Initializes a new instance of [RevSpec] class from provided
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/// pointer to revspec object in memory.
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RevSpec(this._revSpecPointer);
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/// Pointer to memory address for allocated revspec object.
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late final Pointer<git_revspec> _revSpecPointer;
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/// The left element of the revspec; must be freed by the user.
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Commit get from => Commit(_revSpecPointer.ref.from.cast());
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/// The right element of the revspec; must be freed by the user.
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Commit? get to {
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if (_revSpecPointer.ref.to == nullptr) {
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return null;
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} else {
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return Commit(_revSpecPointer.ref.to.cast());
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}
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}
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/// The intent of the revspec.
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Set<GitRevParse> get flags {
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final flagInt = _revSpecPointer.ref.flags;
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var flags = <GitRevParse>{};
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for (var flag in GitRevParse.values) {
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if (flagInt & flag.value == flag.value) {
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flags.add(flag);
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}
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}
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return flags;
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}
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}
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