.githelpers

#!/bin/bash

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

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

ANSI_RED='\033[31m'
ANSI_RESET='\033[0m'

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

pretty_git_log() {
  git log --graph --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 |
    # Color merge commits specially
    sed -Ee "s/(Merge branch .* into .*$)/$(printf $ANSI_RED)\1$(printf $ANSI_RESET)/" |

    sed -Ee "s/[<>]//g" |
    # Page only if we need to
    more -RS
}