#!/bin/bash

# If repo isn't out of date, abort update
if [[ -z "$(git remote show origin | grep "out of date")" ]]; then
  exit 0
fi

SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )

last_hash=$( git rev-parse HEAD )

recent_hashes=$( git log --format=format:%H | grep -B 100 $last_hash)

# Resets the repo to last state
git reset --hard

# Pulls new commits
git pull

# Downloads or updates repo submodules
git submodule update --init --recursive

# Removes untracked files and directories
git clean -fd --force

# Runs patch scripts to ensure machine state
# is up to date
while IFS= read -r hash; do
  short_hash=$( echo $hash | cut -c -7 ) 
  /usr/bin/bash "$SCRIPT_DIR"/../patches/*-"$short_hash".sh 2>/dev/null
done <<< "$recent_hashes"