1、git bash 获取分支信息

# 获取当前分支名
git rev-parse --abbrev-ref HEAD
git branch --show-current

# 获取当前hash
git rev-parse HEAD
git rev-parse --short HEAD  # 短的

npm install execa -S

(async () => {
    const {stdout} = await execa('echo', ['unicorns']);
    console.log(stdout);
    //=> 'unicorns'
})();

// stdout 表示执行命令的输出结果
/*{
  command: 'echo unicorns',
  escapedCommand: 'echo unicorns',
  exitCode: 0,
  stdout: '"unicorns"',
  stderr: '',
  all: undefined,
  failed: false,
  timedOut: false,
  isCanceled: false,
  killed: false
}*/

function getGitBranch() {
  const res = execa.commandSync('git rev-parse --abbrev-ref HEAD');
  return res.stdout;
}
const curbranch = getGitBranch()
console.log('curbranch==', curbranch); // master

// 以下是res输出
curbranch== master
{
  command: 'git rev-parse --abbrev-ref HEAD',
  escapedCommand: 'git rev-parse --abbrev-ref HEAD',
  exitCode: 0,
  stdout: 'master', # 命令执行结果输出
  stderr: '',
  failed: false,
  timedOut: false,
  isCanceled: false,
  killed: false
}

ref: refs/heads/dev_0922

#!/bin/bash

# 获取当前分支
line=$(head -n +1 .git/HEAD)
branch=${line##*/}
echo $branch # dev_0922