git aliases

.gitconfig

[alias]
    # List all aliases
    aliases = ! git config --get-regexp ^alias\\. | sed -e s/^alias\\.// -e s/\\ /\\ =\\ /

    # Edit your git configuration (cfg)
    cfg = config -e --global
    
    # Show the (last) commit
    last = log -1
    # last = show HEAD

    # Retrieve the (SHA) hash of a given commitish 
    sha = !sh -c 'git rev-parse ${1-`echo HEAD`}' -
    
    # Find a branch that matches the user-supplied partial name
    #
    # 1. `git branch --list`  - List the current branches
    # 2. `cut -c 3-`          - Cut off the first 3 characters to remove the asterist on the current branch
    # 3. `grep -i $1`         - Find all branches that match the user-provided name (case insensitive)
    # 4. `head -1`            - Get the first result
    find-branch = !sh -c 'git branch --list | cut -c 3- | grep -i $1 | head -1' -
    
    # Checkout (chk) branches using a partial branch name
    #
    # 0. `!sh -c '...' -`      - Execute the following shell command & pass any additonal parameters as $0, etc.
    # 1. `git checkout $(...)` - Check out the end result of the following commands ...
    # 2. `git branch-list $1`  - Defer to the branch-list alias to look up the specified name
    chk = !sh -c 'git checkout $(git branch-list $1)' -

    # Merge a successive branch (by partial name) into the current branch
    succeed = "!f() { BRANCH=$(git find-branch $1); if [ ! -z "$BRANCH" ]; then git merge --no-ff --no-edit $BRANCH; fi; }; f"
    
    # Shorthand to create a (squash) or (fixup) commit 
    squash = commit --squash=HEAD
    fixup = commit --fixup=HEAD