#!/usr/bin/python
#
# git-wip.py
#
import sys
import os
import subprocess
from datetime import datetime, timedelta

def git_cmd(args):
	try:	
		output = subprocess.check_output(args, stderr=subprocess.STDOUT).decode("utf-8")
	except subprocess.CalledProcessError:
		return None
		
	return output.strip()

def last_commit(filename):
	return git_cmd(["git", "log", "-n1", "--pretty=%h", filename])

def commit_datetime(commit):
	output = git_cmd(["git", "show", "-s", "--format=%ct", commit])
	
	if output:
		return datetime.utcfromtimestamp(float(output))
	return None

# Git status
status_output = git_cmd(["git", "status", "-uno", "--porcelain"])

if status_output == None:
	sys.exit(0)

# Split lines in to list
status_list = status_output.splitlines()

print "  Filename\tLocal modified\tCommit modified\tLast commit"
	
# Loop over list of status output
for status_line in status_list:
	(status, filename) = status_line.split()

	stat = os.stat(filename)
	mtime = stat.st_mtime
	now = datetime.now()
	mtime_human = humanize.naturaltime(now - datetime.fromtimestamp(mtime))
	commit_hash = last_commit(filename)
	
	# Commit date
	commit_date = commit_datetime(commit_hash)
	if commit_date:
		commit_date_human = humanize.naturaltime(now - commit_date)
	else:
		commit_date_human = "-"

	# Output
	print status + " " + filename + "\t" \
		+ mtime_human + "\t" \
		+ commit_date_human + "\t" \
		+ commit_hash

sys.exit(0)