.githelpers

#!/usr/bin/env bash

# Log output:
#
# * 51c333e    (12 days)    <Gary Bernhardt>   add vim-eunuch
#
# The time massaging regexes start with ^[^<]* because that ensures that they
# only operate before the first "<". That "<" will be the beginning of the
# author name, ensuring that we don't destroy anything in the commit message
# that looks like time.
#
# The log format uses } characters between each field, and `column` is later
# used to split on them. A } in the commit subject or any other field will
# break this.

HASH="%C(yellow)%h%Creset"
RELATIVE_TIME="%Cgreen(%ar)%Creset"
AUTHOR="%C(bold blue)<%an>%Creset"
REFS="%C(red)%d%Creset"
SUBJECT="%s"

FORMAT="$HASH}$RELATIVE_TIME}$AUTHOR}$REFS $SUBJECT"

show_git_head() {
    pretty_git_log -1
    git show -p --pretty="tformat:"
}

pretty_git_log() {
    git log --graph --color --pretty="tformat:${FORMAT}" $* |
        # Replace (2 years ago) with (2 years)
        sed -Ee 's/(^[^<]*) ago\)/\1)/' |
        # Replace (2 years, 5 months) with (2 years)
        sed -Ee 's/(^[^<]*), [[:digit:]]+ .*months?\)/\1)/' |
        # Line columns up based on } delimiter
        column -s '}' -t |
        # Page only if we need to
        less -FXRS
}

prune_and_delete_merged() {
    git checkout main
    git pull --rebase
    git remote prune origin
    git branch --merged | grep -v "\*" | xargs -n 1 git branch -d
}

clean_local() {
    BRANCH=$(git rev-parse --abbrev-ref HEAD)
    if [ "$BRANCH" != "main" ]; then
        read -p "Are you sure you want to run while not in main (you run the risk of deleting main)? (y/n) " choice
        if [ "$choice" != "Y" ] && [ "$choice" != "y" ]; then
            echo "Nothing done"
            exit 0
        fi
    fi
    for stale_branch in $(git branch --merged $BRANCH | grep -v $BRANCH); do
        git branch -d $stale_branch
    done
}