获取Node中最新的git commit的哈希 [英] Get hash of most recent git commit in Node

问题描述

我想获取NodeJS当前分支上最新提交的ID/哈希值.

I'd like to get the id/hash of the most recent commit on the current branch in NodeJS.

在NodeJS中，我想获取有关git及其提交的最新id/哈希值.

In NodeJS, I'd like to get the most recent id/hash, with respect to git and commits thereof.

推荐答案

解决方案1(需要git，带有回调):

Solution #1 (git required, with callback):

require('child_process').exec('git rev-parse HEAD', function(err, stdout) {
    console.log('Last commit hash on this branch is:', stdout);
});

(可选)您可以使用execSync()避免回调.

Optionally, you can use execSync() to avoid the callback.

解决方案2(无需git):

Solution #2 (no git required):

• 获取文件.git/HEAD
的内容
• 如果git repo处于分离头状态，则内容将为哈希值
• 如果git repo在某个分支上，则内容将类似于:"refs:refs/heads/current-branch-name"
• 获取.git/refs/heads/current-branch-name
的内容
• 处理此过程中所有可能的错误
• 要直接从master分支获取最新的哈希，可以获取文件的内容:.git/refs/heads/master

• get contents of the file .git/HEAD
• if the git repo is in the detached head state, the content will be the hash
• if the git repo is on some branch, the content will be something like: "refs: refs/heads/current-branch-name"
• get contents of .git/refs/heads/current-branch-name
• handle all possible errors in this process
• to get the latest hash from the master branch directly, you can get the contents of the file: .git/refs/heads/master

可以使用以下代码进行编码:

This can be coded with something like:

const rev = fs.readFileSync('.git/HEAD').toString();
if (rev.indexOf(':') === -1) {
    return rev;
} else {
    return fs.readFileSync('.git/' + rev.substring(5)).toString();
}

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