我需要每次提交,以获取关联标签的名称和消息。
我设法获得了与我的提交关联的标签名称。但我无法收到消息。我试过这样:
String nameTag = "";
List<Ref> call = new Git(git.getRepository()).tagList().call(); // get all tags from repository
for (Ref ref: call) {
if ((ref.getObjectId().getName()).equals(commit.getName())) {
Map<ObjectId, String> names = git.nameRev().add(ref.getObjectId()).addPrefix("refs/tags/").call();
nameTag = names.get(ref.getObjectId());
System.out.println("Commit " + commit.getName() + "has tag" + nameTag);
}
}
我尝试为每个找到的引用创建RevTag:
AnyObjectId obj = ref.getObjectId();
if(obj instanceof RevTag) {
RevTag tag = walk.parseTag(obj);
System.out.println(tag.getFullMessage());
}
但返回的对象 ID 从来都不是 RevTag。异常消息为:
Object ... is not a tag .
如何创建解析引用的 RevTag?
您不一定必须使用 RevWalk#parseTag()
解析标签。此方法仅用于解析带注释的标记。
要区分一个和另一个,您甚至可以使用parseTag
(或者有更好的方法吗?
RevTag tag;
try {
tag = revWalk.parseTag(ref.getObjectId());
// ref points to an annotated tag
} catch(IncorrectObjectTypeException notAnAnnotatedTag) {
// ref is a lightweight (aka unannotated) tag
}
带注释的标记指向提交对象,因此具有作者、日期、消息等,提交对象又指向标记的提交。
轻量级标记直接引用标记的提交(很像分支,但只读),因此不能有消息。
有关注释标签与轻量级标签的更多信息:
- 为什么我应该关心轻量级标签与带注释的标签?
- 带注释和未注释的标记有什么区别?
// Create list with all tags from repository(annotated or lightweight):
LogCommand log = git.log();
List<Ref> call call = git.tagList().call();
RevWalk walk = new RevWalk(git.getRepository());
List<Ref> getTags = new ArrayList<Ref>();
for (Ref ref: call)
{
Ref peeledRef = git.getRepository().peel(ref);
if (peeledRef.getPeeledObjectId() != null)
{
log.add(peeledRef.getPeeledObjectId());
getTags.add(peeledRef);
}
else
{
log.add(ref.getObjectId());
getTags.add(ref);
}
}
//for each ref from getTags list, create a RevTag
for (Ref obj: getTags)
{
String tagId = obj.getPeeledObjectId().getName();
//use this equals if you want to get forr your commit its assciated tag
if (tagId.equals(your_commit.getName()))
{
RevTag tag = walk.parseTag(obj.getObjectId());
System.out.println("Commit " + your_commit.getName() + " has tag " + tag.getTagName() + " with message tag " + tag.getFullMessage());
}
}
要从标签获取消息,我使用此代码:-
private static void ReadTagFromName(Repository repository, String tagName) throws IOException {
try (RevWalk walk = new RevWalk(repository)) {
Ref annotatedTag = repository.findRef(tagName);
RevObject any = walk.parseAny(annotatedTag.getObjectId());
String message;
while (any != null) {
if (any instanceof RevCommit) {
RevCommit rc = (RevCommit) any;
message = rc.getFullMessage();
System.out.println(String.format("[%s][%s]", tagName, message.substring(0, message.length() - 1)));
} else if (any instanceof RevTag) {
RevTag tagObject = (RevTag) any;
message = tagObject.getFullMessage();
System.out.println(String.format("[%s][%s]", tagName, message.substring(0, message.length() - 1)));
}
any = walk.next();
}
walk.dispose();
}
}