使用 JGit 获取标签消息 [英] Get message of tags using JGit
问题描述
我需要在每次提交时获取关联标签的名称和消息.
I need for each commit, to get the name and message of the associated tag.
我设法获得了与我的提交相关联的标签名称.但是我无法收到消息.我试过这样:
I managed to get the tag name associated with my commit . But I can't get the message. I tried like this:
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);
}
}
我尝试为找到的每个引用创建 RevTag:
I tried to create RevTag for each ref found:
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 永远不会是 RevTag.异常消息是:
But the returned object id is never RevTag. Exception message is:
Object ... is not a tag .
如何创建解析参考的 RevTag?
How can I create a RevTag parsing a Ref?
推荐答案
您不必使用 RevWalk#parseTag() 来解析标签.此方法仅用于解析注解标签.
You don't neccessarily have to parse tags with RevWalk#parseTag(). This method is only to parse annotated tags.
你甚至可以使用 parseTag(或者有什么更好的方法?)
To tell one from the other you can even use parseTag (or is there any better way?)
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，而提交对象又指向标记的提交.
An annotated tag points to a commit object and thus has an author, date, message etc. and the commit object in turn points to the tagged commit.
轻量级标签直接引用标记的提交(很像分支，但只读)，因此不能有消息.
A lightweight tag directly references the tagged commit (much like a branch, but read-only) and hence cannot have a message.
更多关于带注释的标签与轻量级标签:
More about annotated vs. lighweight tags:
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