#!/usr/bin/env bash

function git_remote {
  echo "Running: git remote add origin ${GIT_HOSTING}:$1.git"
  git remote add origin $GIT_HOSTING:$1.git
}

function git_first_push {
  echo "Running: git push origin master:refs/heads/master"
  git push origin master:refs/heads/master
}

function git_remove_missing_files() {
  git ls-files -d -z | xargs -0 git update-index --remove
}

# Adds files to git's exclude file (same as .gitignore)
function local-ignore() {
  echo "$1" >> .git/info/exclude
}

# get a quick overview for your git repo
function git_info() {
    if [ -n "$(git symbolic-ref HEAD 2> /dev/null)" ]; then
        # print informations
        echo "git repo overview"
        echo "-----------------"
        echo

        # print all remotes and thier details
        for remote in $(git remote show); do
            echo $remote:  
            git remote show $remote
            echo
        done

        # print status of working repo
        echo "status:"
        if [ -n "$(git status -s 2> /dev/null)" ]; then
            git status -s
        else
            echo "working directory is clean"
        fi

        # print at least 5 last log entries
        echo 
        echo "log:"
        git log -5 --oneline
        echo 

    else
        echo "you're currently not in a git repository"

    fi
}

function git_stats {
# awesome work from https://github.com/esc/git-stats
# including some modifications

if [ -n "$(git symbolic-ref HEAD 2> /dev/null)" ]; then
    echo "Number of commits per author:"
    git --no-pager shortlog -sn --all
    AUTHORS=$( git shortlog -sn --all | cut -f2 | cut -f1 -d' ')
    LOGOPTS=""
    if [ "$1" == '-w' ]; then
        LOGOPTS="$LOGOPTS -w"
        shift
    fi
    if [ "$1" == '-M' ]; then
        LOGOPTS="$LOGOPTS -M"
        shift
    fi
    if [ "$1" == '-C' ]; then
        LOGOPTS="$LOGOPTS -C --find-copies-harder"
        shift
    fi
    for a in $AUTHORS
    do
        echo '-------------------'
        echo "Statistics for: $a"
        echo -n "Number of files changed: "
        git log $LOGOPTS --all --numstat --format="%n" --author=$a | cut -f3 | sort -iu | wc -l
        echo -n "Number of lines added: "
        git log $LOGOPTS --all --numstat --format="%n" --author=$a | cut -f1 | awk '{s+=$1} END {print s}'
        echo -n "Number of lines deleted: "
        git log $LOGOPTS --all --numstat --format="%n" --author=$a | cut -f2 | awk '{s+=$1} END {print s}'
        echo -n "Number of merges: "
        git log $LOGOPTS --all --merges --author=$a | grep -c '^commit'
    done
else
    echo "you're currently not in a git repository"
fi
}