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feat(reference): add ability to set target

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This commit is contained in:
Aleksey Kulikov 2021-08-06 16:44:50 +03:00
parent 58fa54f24a
commit 371d52b7f8
5 changed files with 147 additions and 15 deletions
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39
lib/src/reference.dart
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@ -1,6 +1,8 @@
import 'dart:ffi';
import 'bindings/libgit2_bindings.dart';
import 'bindings/reference.dart' as bindings;
import 'bindings/repository.dart' as repo_bindings;
import 'odb.dart';
import 'oid.dart';
import 'reflog.dart';
import 'util.dart';
@ -37,7 +39,7 @@ class Reference {
required String name,
required Pointer<git_oid> oid,
required bool force,
required String logMessage,
String? logMessage,
}) {
_refPointer = bindings.createDirect(repo, name, oid, force, logMessage);
}
@ -69,7 +71,7 @@ class Reference {
required String name,
required String target,
required bool force,
required String logMessage,
String? logMessage,
}) {
_refPointer =
bindings.createSymbolic(repo, name, target, force, logMessage);
@ -89,7 +91,7 @@ class Reference {
}
/// Pointer to memory address for allocated reference object.
late final Pointer<git_reference> _refPointer;
late Pointer<git_reference> _refPointer;
/// Checks if the reference [name] is well-formed.
///
@ -129,6 +131,37 @@ class Reference {
return Oid(oidPointer);
}
/// Conditionally creates a new reference with the same name as the given reference
/// but a different OID target.
///
/// The new reference will be written to disk, overwriting the given reference.
///
/// Throws a [LibGit2Error] if error occured.
void setTarget(String target, [String? logMessage]) {
late final Oid oid;
if (isValidShaHex(target)) {
if (target.length == 40) {
oid = Oid.fromSHA(target);
} else {
final shortOid = Oid.fromSHAn(target);
final odb = Odb(repo_bindings.odb(owner));
oid = Oid(odb.existsPrefix(shortOid.pointer, target.length));
odb.free();
}
} else {
final ref = Reference(bindings.lookup(owner, target));
oid = ref.target;
ref.free();
}
if (type == ReferenceType.direct) {
_refPointer = bindings.setTarget(_refPointer, oid.pointer, logMessage);
} else {
_refPointer = bindings.setTargetSymbolic(_refPointer, target, logMessage);
}
}
/// Returns the full name of a reference.
String get name => bindings.name(_refPointer);