Method GetMainBranchName

cli/pkg/common/git.go:202–234

获取默认分支 e.g. git remote show $(git remote show|tail -1)|grep 'HEAD branch'|awk '{print $NF}'

(repoDirPath string)

// 获取默认分支
// e.g. git remote show $(git remote show|tail -1)|grep 'HEAD branch'|awk '{print $NF}'
func (g gitOperation) GetMainBranchName(repoDirPath string) string {
	remoteName := g.GetRemoteName(repoDirPath)

	output1, _ := EXEC.CombinedOutput("git remote show "+remoteName, repoDirPath)
	tmpArray1 := strings.Split(strings.TrimSpace(output1), "\n")
	for _, line := range tmpArray1 {
		/*
					* remote origin
			  Fetch URL: https://github.com/idcf-boat-house/boathouse-calculator.git
			  Push  URL: https://github.com/idcf-boat-house/boathouse-calculator.git
			  HEAD branch: master
			  Remote branches:
			    feature-vmlc-arm-improve tracked
			    kaikeba                  tracked
			    master                   tracked
			    new-base                 tracked
			    test-git-config          tracked
			  Local branches configured for 'git pull':
			    feature-vmlc-arm-improve merges with remote feature-vmlc-arm-improve
			    master                   merges with remote master
			  Local refs configured for 'git push':
			    feature-vmlc-arm-improve pushes to feature-vmlc-arm-improve (up to date)
			    master                   pushes to master                   (local out of date)
		*/
		text := "HEAD branch:"
		index := strings.Index(line, text)
		if index > -1 {
			tmp := line[index+len(text):]
			return strings.TrimSpace(tmp)
		}
	}
	return ""
}

// 从git下载相关文件
func (g gitOperation) DownloadFilesByGit(workingRootDir string, gitCloneUrl string, branch string, filePathExpression string) (