#!/bin/bash

# A script that retrieves information about the Git tag information 
# for projects (modules/themes) in the Druapl Git repository.
# Exercises the function getLatestContribTag() in drupalLibrary.sh
# This information can be found on the drupal source browser site:
# http://drupalcode.org/project/drupal.git 
# (This URL is for the drupal core, adjust as necessary for other projects.)

# include library file
. "`dirname ${0}`/drupalLibrary.sh"


printUsage() {
	echo -e "Gets contrib latest version information for a Drupal version."
	echo -e "For more info, see script header."
	echo -e " "
	echo -e "Usage:"
	echo -e "$0 [-ver <version>] [-alltags] <module/theme project name>"
	echo -e "where:"
	echo -e " "
	echo -e "-ver <version>"
	echo -e "\tIf specified, the drupal major version number for which to look up"
	echo -e "\tversion information.  E.g. '6'  Defaults to '${DEFAULT_DRUPAL_MAJOR_VERSION}'."
	echo -e " "
	echo -e "-alltags"
	echo -e "\tIf specified, will list all tags and branches (heads)"
	echo -e "\tin the repo for the given project."
	echo -e " "
	echo -e "<module/theme name>"
	echo -e "\tThe name of the module or theme for which to get version information."
	echo -e " "
}


#########

# Param handling
if [ $# -eq 0 ]; then
	printUsage
	exit 0
fi
echo " "

# Handle flags
majorVer="${DEFAULT_DRUPAL_MAJOR_VERSION}"
while (true); do
	case "${1}" in
	-ver )
		if [ $# == 1 ]; then
			echo -e "** Must specify a version with -ver.  Aborting.\n"
			printUsage
			exit 1
		fi
		majorVer="${2}"
		shift; shift
		;;

	-alltags )
		pAlltags="-alltags"
		shift
		;;

	* )
		break
		;;
	esac
done

if [ $# -ne 1 ]; then
	echo -e "** Invalid number of parameters supplied.  Aborting.\n"
	printUsage
	exit 1
fi


# Get contrib information
# Make call three times.  It's slow; but it works.
project="${1}"

echo "For project ${project}:"

if [ -n "${pAlltags}" ]; then
	# listing all tags
	echo "Branches (Heads) (ascending order):"
	getContribTags "${project}" "${majorVer}" branch | while read tag; do echo -e "\t${tag}"; done
	echo ""
	echo "Tags (ascending order):"
	getContribTags "${project}" "${majorVer}" tag | while read tag; do echo -e "\t${tag}"; done

else
	# listing just greatest tags
	latestBranch="`getLatestContribTag "${project}" "${majorVer}" branch`"
	latestTag="`getLatestContribTag "${project}" "${majorVer}" tag`"
	echo "Latest branch (head):'${latestBranch}'  Latest tag:'${latestTag}'"

fi

echo -e "\n**Done."