git_delete_branches

This script will delete all local and remote branches from the Git repository in the given directory ($PWD if not given).

The optional second parameter is the name of the branch to keep (defaults to the value of the init.defaultBranch Git configuration parameter or main if not set).

Protected remote branches will not be deleted.

All other local and remote branches will be irreversibly deleted—be careful, you have been warned!

Usage

$ scripts/git/git_delete_branches.sh
$ scripts/git/git_delete_branches.sh /tmp/example

Example

$ (cd /tmp/example && git branch -vv --all)
  docs/issue-1                69bad6f [origin/docs/issue-1] issue 1
  feat/issue-2                b542a1c [origin/feat/issue-2: ahead 1] not pushed
  fix/issue-3                 10caf8a issue 3
* main                        4cf1f7d [origin/main] initial
  remotes/origin/docs/issue-1 69bad6f issue 1
  remotes/origin/feat/issue-2 b7b9f06 issue 2
  remotes/origin/main         4cf1f7d initial
$ scripts/git/git_delete_branches.sh /tmp/example

WARNING: The following branches will be deleted from the repository located at '/private/tmp/example'.

Local branches:
- docs/issue-1
- feat/issue-2
- fix/issue-3

Remote branches:
- docs/issue-1
- feat/issue-2

Do you really want to irreversibly delete these branches (Y/N)? y
$ (cd /tmp/example && git branch -vv --all)
* main                4cf1f7d [origin/main] initial
  remotes/origin/main 4cf1f7d chore: initial

$ (cd /tmp/example2 && git branch -vv --all)
  docs/issue-1                bf48e73 [origin/docs/issue-1] issue 1
  feat/issue-2                12bfe9e [origin/feat/issue-2: ahead 1] not pushed
  fix/issue-3                 137da91 issue 3
* main                        3d1dd24 [origin/main] initial
  remotes/origin/docs/issue-1 bf48e73 issue 1
  remotes/origin/feat/issue-2 f8b0f86 issue 2
  remotes/origin/main         3d1dd24 initial
$ scripts/git/git_delete_branches.sh /tmp/example2 'docs/issue-1'

WARNING: The following branches will be deleted from the repository located at '/private/tmp/example2'.

Local branches:
- feat/issue-2
- fix/issue-3
- main

Remote branches:
- feat/issue-2
- main

Do you really want to irreversibly delete these branches (Y/N)? y

To github.com:sdavids/example2.git
 ! [remote rejected] main (refusing to delete the current branch: refs/heads/main)
error: failed to push some refs to 'github.com:sdavids/example2.git'
$ (cd /tmp/example2 && git branch -vv --all)
* docs/issue-1                bf48e73 [origin/main: ahead 1] docs: issue-1
  remotes/origin/docs/issue-1 bf48e73 docs: issue-1
  remotes/origin/main         3d1dd24 chore: initial

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