我怎样才能获得最新提交的混帐的当前签出分支ID，用ANT，不具有活性的git安装？ [英] How can I get the latest commit ID of the currently checked out branch in git, using ANT, without having an active git installation?

问题描述

我用下面的蚂蚁详细信息检索，签出的分支的最新提交身份证，有什么注意事项我应该担心使用这种方法？

是否有优势情况下，我不会取得预期值？

 ＆LT; scriptdef NAME =串LANGUAGE =JavaScript的＆GT;
    ＆LT;属性名=TEXT/＆GT;
    ＆LT;属性名=开始/＆GT;
    ＆LT;属性名=结束/＆GT;
    ＆LT;属性名=属性/＆GT;
    ＆LT;！[CDATA [
       VAR文本= attributes.get（文字）;
       VAR开始= attributes.get（开始）;
       VAR结束= attributes.get（结束）|| （text.length（） -  1）;
       project.setProperty（attributes.get（财产），text.substring（开始，结束））;
     ]]＆GT;
＆LT; / scriptdef＆GT;＆LT;财产的loadFile =head.branchSRCFILE =$ {BASEDIR} / git的/ HEAD/＆GT;
＆LT;子文本=$ {} head.branch开始=5的属性=分支/＆GT;
＆LT;财产的loadFile =head.commitIdSRCFILE =$ {BASEDIR} / git的/ $ {}分支/＆GT;
 

解决方案

您可以阅读内容的.git / HEAD ，然后读取文件的内容，你从得到的。

这是你会遇到需要说明的是，SHA-1，你从上面的步骤，获取可能是在包文件（GIT的方式融为一体presses多次更改起来以节省空间）。我会建议使用git的，而不是试图自己操作git的文件夹内容。

I've used the following ant details to retrieve the checked out branch's latest commit ID, what caveats should I be concerned about using this method?

Are there edge cases where I wouldn't retrieve the expected values?

<scriptdef name="substring" language="javascript">
    <attribute name="text" />
    <attribute name="start" />
    <attribute name="end" />
    <attribute name="property" />
    <![CDATA[
       var text = attributes.get("text");
       var start = attributes.get("start");
       var end = attributes.get("end") || (text.length() - 1);
       project.setProperty(attributes.get("property"), text.substring(start, end));
     ]]>
</scriptdef>

<loadfile property="head.branch" srcfile="${basedir}/.git/HEAD" />
<substring text="${head.branch}" start="5" property="branch" />
<loadfile property="head.commitId" srcfile="${basedir}/.git/${branch}"/>

解决方案

you can read the contents of .git/HEAD, then read the contents of the file that you get from that.

The caveat that you will run into is that the SHA-1 that you get from the above steps may be in a pack file (the way git compresses multiple changes together to save space). I would recommend using git instead of trying to manipulate the .git folder contents yourself.

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