vgitcommit

#!/bin/bash
# You run this script instead of git-commit-hash-vanitygen to generate a commit. 
# 

_self_bin_name="$0"
function where_is_him () {
    SOURCE="$1"
    while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
        DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
        SOURCE="$(readlink "$SOURCE")"
        [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
    done
    DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
    echo -n "$DIR"
}
function where_am_i () {
    _my_path=`type -p ${_self_bin_name}`
    [[ "$_my_path" = "" ]] && where_is_him "$_self_bin_name" || where_is_him "$_my_path"
}
vanity_bin="$(where_am_i)/git-commit-hash-vanity"

######################################################
# script starts here

[[ $1 = "" ]] && echo "Usage: $0 'Your Commit Message %s'" && exit 1

git commit -m '__tmp_commit_by_git-commit-hash-vanitygen' &&
    treehash=`git cat-file commit HEAD | head -n1 | cut -d ' ' -f 2` &&
    git reset HEAD~1 --soft ||
    exit $?

parhash=`git rev-parse HEAD` &&
    author="$(git config user.name) <$(git config user.email)>" &&
    timezone=`date +%z` ||
    exit $?

result_cmd=`"$vanity_bin" --msg "$1" --tree "$treehash" --parent "$parhash" --author "$author" --timezone "$timezone"` &&
    echo "Executing command: $result_cmd" &&
    eval "$result_cmd" ||
    exit $?