#!/bin/bash

if [ "x$1" == "xdoit" ]; then
    # fetch everything
    git fetch;
    # figure out if we should pull
    # 1. no modified files
    if [ -n "$(git status --porcelain -u no)" ]; then
        # 2. Not detached head
        if [ -n "$(git symbolic-ref HEAD)" ]; then
            # 3. no commits which are not in origin
            if [ -n "$(git rev-list \"^$(git remote|head -n 1)\" HEAD)" ]; then
                # 3. machine is currently inactive for more than 1 hour
                if [ "$IDLE_TIME" -gt 3600 ]; then
                    git pull;
                fi;
            fi;
        fi;
    fi;

            
else
    IDLE_TIME=0
    if which xprintidle >/dev/null 2>&1; then
        IDLE_TIME=$(($(xprintidle) / 1000 ));
    fi;
    IDLE_TIME="$IDLE_TIME" mr -d ~ -j5 run update_git_repos doit;
fi;