CODEWITHSUNDEEP
bashgitgit-bash
rowoc
rowoc

Reputation: 249

How to delete old git branches before 1 year?

I want to list all 1 year before git branches and then ask user to type YES tto delete all the listed branches.

#!/bin/bash
if [[ "$data_folder" == "test" ]]; then

        current_timestamp=$(date +%s)
        twelve_months_ago=$(( $current_timestamp - 12*30*24*60*60 ))

        for x in `git branch -r | sed /\*/d`; do

                branch_timestamp=$(git show -s --format=%at $x)

                if [[ "$branch_timestamp" -lt "$twelve_months_ago" ]]; then
                        branch_for_removal+=("${x/origin\//}")
                fi
        done

if [[ "$USERCHOICE" == "YES" ]]; then
        git push origin --delete ${branch_for_removal[*]}
        echo "Finish!"
else
        echo "Exit"
fi

Is this logic correct to list and delete all 1 year before git branches !!

Upvotes: 1

Views: 936

Answers (1)

LeGEC
LeGEC

Reputation: 51840

The overall logic looks ok (there may be some issue in the script, for example the fi which closes the initial if [[ "$data_folder" == "test" ]]; then is missing from the code you pasted).

There are however ways to use git commands to list the data you want in one go :

  • for scripting purposes, use git for-each-ref rather than git branch :

    # to list only refs coming from remotes/origin :
git for-each-ref refs/remotes/origin

# to have names 'origin/xxx` you are used to :
git for-each-ref --format="%(refname:short)" refs/remotes/origin

# to have the ref name without the leading 'origin/':
git for-each-ref --format="%(refname:lstrip=3)" refs/remotes/origin

# to have the timestamp of the latest commit followed by the refname :
git for-each-ref --format="%(authordate:unix) %(refname:lstrip=3)" refs/remotes/origin

    see git help for-each-ref for more details

  • you can ask date to compute the "1 year ago" for you : date -d '1 year ago' +%s,
    and use e.g awk to filter your output in one go :

    d1year=$(date -d '1 year ago' +%s)
git for-each-ref --format="..." refs/remotes/origin |\
    awk '{ if ($1 < '$d1year') print $2 }'

Also note : you may want to check the committerdate rather than the authordate

Upvotes: 3

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