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feat(repository): add ability to set head

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This commit is contained in:
Aleksey Kulikov 2021-08-09 13:14:24 +03:00
parent 7b6e0c36f6
commit b603a567b2
2 changed files with 56 additions and 16 deletions
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25
lib/src/repository.dart
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@ -1,5 +1,6 @@
import 'dart:ffi';
import 'odb.dart';
import 'oid.dart';
import 'reference.dart';
import 'bindings/libgit2_bindings.dart';
import 'bindings/repository.dart' as bindings;
@ -77,11 +78,11 @@ class Repository {
return bindings.isHeadDetached(_repoPointer);
}
/// Makes the repository HEAD point to the specified reference.
/// Makes the repository HEAD point to the specified reference or commit.
///
/// If the provided [reference] points to a Tree or a Blob, the HEAD is unaltered.
/// If the provided [target] points to a Tree or a Blob, the HEAD is unaltered.
///
/// If the provided [reference] points to a branch, the HEAD will point to that branch,
/// If the provided [target] points to a branch, the HEAD will point to that branch,
/// staying attached, or become attached if it isn't yet.
///
/// If the branch doesn't exist yet, the HEAD will be attached to an unborn branch.
@ -89,8 +90,22 @@ class Repository {
/// Otherwise, the HEAD will be detached and will directly point to the Commit.
///
/// Throws a [LibGit2Error] if error occured.
void setHead(String reference) {
bindings.setHead(_repoPointer, reference);
void setHead(String target) {
late final Oid oid;
if (isValidShaHex(target)) {
if (target.length == 40) {
oid = Oid.fromSHA(target);
} else {
final shortOid = Oid.fromSHAn(target);
final odb = this.odb;
oid = Oid(odb.existsPrefix(shortOid.pointer, target.length));
odb.free();
}
bindings.setHeadDetached(_repoPointer, oid.pointer);
} else {
bindings.setHead(_repoPointer, target);
}
}
/// Checks if the current branch is unborn.