my-git-utils

A collection of my little utility scripts to work with Git repositories.

git-exec-if-changed

git-exec-if-changed executes a given command if specified paths in a repository have changed since a specified commit. The --since-last-exec option is particularly useful: it records the revision when the command was last executed and only runs the command if paths have changed since that point.

% git pull

% git exec-if-changed --verbose --path package-lock.json --since-last-exec=tmp/.last-npm-i -- npm install
exec-if-changed: changed since (root)
# exec npm install...

% git pull

% git exec-if-changed --verbose --path package-lock.json --since-last-exec=tmp/.last-npm-i -- npm install
exec-if-changed: not changed since 30a87913a60ac47deb55c1588d68e0e89f2cabf6

See git-exec-if-changed.md for more information.

git-guess-default-branch

git-guess-default-branch guesses the default branch name.

Git repositories usually have a default branch, but its name varies depending on the repository, such as master, main, or develop. This command would be useful when you want to manipulate the default branch without specifying the branch name.

% git branch
* feature/foo
  master
  release

% git guess-default-branch
master

See git-guess-default-branch.md for more information.

git-unkeep

git-unkeep recursively searchs for .gitkeep files in the work tree, and if a directory containing a .gitkeep file has any entries other than the .gitkeep file itself, removes the .gitkeep file from that directory.

.gitkeep is an unofficial convention to check-in otherwise empty directories.

% git unkeep
rm 'db/migrations/.gitkeep'
rm 'resources/.gitkeep'

See also

• uasi/gh-blame-pr: A GitHub CLI extension to open the most recent pull request that modified the specified file.