git_delete_branches

This script will delete all local and remote branches from a given repository.

The following parameters are optional:

d: the directory ($PWD if not given) containing the Git repository
k: the name of the branch to keep (defaults to the value of the init.defaultBranch Git configuration parameter or main if not set).
y: assume "yes" as answer to all prompts and run non-interactively

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 -d /tmp/example
$ scripts/git/git_delete_branches.sh -k master

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 -d /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 -d /tmp/example2 -k '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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