#!/bin/bash
# This script deploys kohana to zip / tar / gzip format & removes development extras
# It expects a valid git tag as the first parameter

DEPLOY_DIR="kohana_release"
TESTING_FILES="application/test_bootstrap.php phpunit.xml code_coverage.xml phpunitcc TESTING.md release-tag"
KOHANA_REPO="git://github.com/kohana/kohana"
USAGE="\nUsage: $0 {git-tag}
\nWhere {git-tag} is a valid tag in the git repository"

# A tag must be provided as the first argument
if [ -z $1 ]; then
	echo "$0 - A small script to prepare a kohana tag for relase."
	echo "If unit tests complete it removes testing files and archives the codebase"
	echo -e $USAGE
	exit 1
fi

# Just setting this lest we need to refactor later on
DEPLOY_TAG=$1

# Bit of a hacky way to find if a tag exists
git tag -l $DEPLOY_TAG | grep -E ".+" &> /dev/null

# Check that the exit code of grep was 0 (i.e. it matched something 1+ times)
if [ $? -ne 0 ]; then
	echo "Could not find specified tag in git repo ($DEPLOY_TAG)"
	echo -e $USAGE
	exit 2
fi

echo "Creating a clean deploy environment called '$DEPLOY_DIR'..."

# Create a clean temp area to deploy our stuff
rm -rf $DEPLOY_DIR
mkdir $DEPLOY_DIR
cd $DEPLOY_DIR

echo "Cloning the repo and checking out the tag to deploy..."
# Bring down a fresh copy of the kohana repo
git clone $KOHANA_REPO repo
cd repo

# Checkout the tag we want to deploy and fetch all the submodules
git checkout --quiet $DEPLOY_TAG
git submodule update --init

echo "Running tests to ensure release is stable..."
phpunit 

# We cannot release something that's not stable
if [ $? -ne 0 ]; then
	echo "Some unit tests did not pass, exiting release"
	exit 3
fi

echo "Removing testing files..."

# Now we remove all unit testing files
rm -vrf $TESTING_FILES

# Including any tests across all modules
find . -type d -regex ".*/tests$" | xargs rm -vrf

# And now we package the whole thing up in archive form
echo "Packaging repo into zip and tar.gz archives..."

zip -r -q $DEPLOY_TAG.zip *
mv $DEPLOY_TAG.zip ../

tar -czf $DEPLOY_TAG.tar.gz *
mv $DEPLOY_TAG.tar.gz ../