#!/bin/bash

# Script to create a new project and trac instance

#

# 1. Create Mysql database with collate utf-8

#    > CREATE DATABASE <trac_project> DEFAULT CHARACTER SET utf8 COLLATE utf8_bin;

# 2. then execute trac-admin /path/to/trac/env initenv

#    > supply the db string as mysql://user:password@localhost/dbname

# 3. Deploy the project

#    > trac-admin /path/to/trac/env deploy /path/to/trac/env/deploy/

# 4. chmod to add group permissions

#    > chmod g+rwx /path/to/trac/env -R

# 5. Copy the template trac.ini file to be the trac.ini file and copy some

# config from the old trac.ini file to the new one

readConfig() {

  configFile='trac.config'

  if [ ! -e $configFile ]; then

    echo "$configFile does not exist. Make sure you have a config file in the \

    same path."

    exit 1;

  elif [ ! -r $configFile ]; then

    echo "Cannot read file $configFile. Permission denied."

    exit 1;

  fi

  tuser=$(sed -n 's/tuser=\(.*\)/\1/p' $configFile)

  tpassword=$(sed -n 's/tpassword=\(.*\)/\1/p' $configFile)

  ruser=$(sed -n 's/ruser=\(.*\)/\1/p' $configFile)

  rpassword=$(sed -n 's/rpassword=\(.*\)/\1/p' $configFile)

  rpassword=$(sed -n 's/rpassword=\(.*\)/\1/p' $configFile)

  trac_project=$(sed -n 's/trac_project=\(.*\)/\1/p' $configFile)

}

createDB() {

  echo "Creating DB trac_$project for $project"

  /usr/bin/mysql -u $ruser -p$rpassword -e "create database trac_$project \

  default character set utf8 collate utf8_bin;grant all privileges on \

  trac_$project.* to '$tuser'@'localhost' identified by '$tpassword';"

}

initTracEnv() {

  echo "Initing Env: $project"

  /usr/local/bin/trac-admin $trac_project$project initenv "$project" \

  "mysql://$tuser:$tpassword@localhost:3306/trac_$project" "git" \

  "/vol/www/gitorious/repositories/$project"

}

deployTracEnv() {

  echo "Deploying to $trac_project$project/deploy/"

  /usr/local/bin/trac-admin $trac_project$project deploy $trac_project$project"/deploy/"

}

chmodTracEnv() {

  echo "Changing permissions of $trac_project$project"

  chmod g+rwx $trac_project$project -R

}

writeTracConfig() {

  oldconfig="$trac_project$project/conf/trac.ini"

  newconfig='trac.ini.template'

  echo "Writing template config to $oldconfig"

  if [ ! -e $newconfig ]; then

    echo "File: $newconfig does not exist. Could not write template \

    configuration. You have to manually configure the config file now.\

    Everything else is setup."

    exit 0;

  fi

  name=$(sed -n 's/^name = \(.*\)$/\1/p' $oldconfig)

  db=$(sed -n 's/^database = \(.*\)$/\1/p' $oldconfig)

  db=${db//\//\\/}

  $(cp $newconfig $oldconfig)

  newconfig=$oldconfig

  $(sed -i "s/^name =$/name = $name/" $newconfig)

  $(sed -i "s/^database =$/database = $db/" $newconfig)

  # The Trac Environment needs to be upgraded.

  /usr/local/bin/trac-admin $trac_project$project upgrade

}

usage() {

	echo "Usage is $0 --name <name of the project>"

}

setup() {

	createDB && initTracEnv && deployTracEnv && chmodTracEnv && writeTracConfig;

  echo "Done.."

  exit 0;

}

if [ "$1" == "--help" ]; then

  usage

  exit 0;

elif [ "$1" == "--name" ]; then

  project=$2

  if [ -z $project ]; then

    echo "You have to give a project name. Please see --help."

    exit 1;

  fi

  readConfig

  setup

else

  echo "Invalid option. Please see --help."

  exit 1;

fi