Use a modified variable in bash script, trying to change git branch programatically

Question

I'm playing around with my custom commands, and I'm currently trying to change a remote Git branch programatically using bash.

issue() {
    if [ `git branch --list issue_$1` ]
    then
        git checkout issue_$1
    else
        git checkout -b issue_$1
        git branch -u origin issue_${1}
    fi
}

The idea is this function will try to find the branch issue_X, if it does it switches, otherwise it creates and sets the remote origin.

The problem is git branch -u origin issue_${1} I don't know how to do this, and I'm having trouble googling for it because I don't know what this process is called.

Thanks a lot for the help!

You are trying to say that you want the else branch to create a new branch, and mark it as tracking an upstream branch of the same name, and you don't know how to do the latter? Just push it. — tripleee
– tripleee, Commented Mar 8, 2018 at 6:14
@MauroCasas: I also find the title of your posting confusing. You are talking about a "modified variable", but there is no mentioning of any variable in your posting. — user1934428
– user1934428, Commented Mar 8, 2018 at 8:19
@MauroCasas: What problem do you have exactly when setting up the upstream branch? I'm not a git specialist, but the argument to -u should be the upstream branch name. My feeling is that a command git branch -u origin/issue_$1 issue_$1 would be more appropriate. I suggest you remove all tags except git from your posting, as this question doesn't seem to be related to shell scripting, but to the naming of upstream branches. — user1934428
– user1934428, Commented Mar 8, 2018 at 8:30

phd · Accepted Answer · 2018-04-25 15:36:11Z

1

I don't know how to do git branch -u origin issue_${1}

If a remote-tracking branch origin/issue_${1} exists you can do git branch -u origin/issue_${1}.

The problem is that in your situation the remote-tracking branch doesn't exit and you have to create it:

git push -u origin issue_${1}

edited Apr 25, 2018 at 15:36

answered Mar 8, 2018 at 12:44

phd

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