#! /bin/bash
#------------------------------------------------------------------------------
# check-parameters.sh - this script checks the given parameters for 
#                       mktarball.sh
#
# Creation   : 2007-12-20 starwarsfan
# Last Update: $Id$
#
# Copyright (c) 2001-2009 the eisfair team, team(at)eisfair(dot)org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#------------------------------------------------------------------------------

# -----------------------------------------------------------------------------
# checkParameters
# -----------------------------------------------------------------------------
checkParameters ()
{
    # ------------------
    # is $package given?
    if ! ${packageGiven}
    then
        echo "You have to enter at least one package name as the last parameter"
        echo ""
        showUsage
        return ${NO_PACKAGE_GIVEN}
    # ----------------------------------
    # is the state of the package given?
    elif [ ${setStable} == false -a ${setTesting} == false -a ${setBugfix} == false -a ${setTaged} == false ]
    then
        if ! ${quietMode}
        then
            echo "You did not gave one of the params '--stable', '--testing', '--bugfix' or" 
            echo "'--tag'. So ignoring the package state and create the package right out"
            echo "of the trunk. Creation and checkout of tag and bugfix branch is disabled too."
        fi
        ignorePackageState=true
        createBugfixBranch=false
        checkoutBugfixBranch=false
        checkoutBugfixBranchParam=''
        createTag=false
        checkoutTag=false
        checkoutTagParam='--no-checkout'
    fi
    
    # --------------------------------------------------------------------------------
    # if a testing or bugfix release ist created, then no bugfix branch can be created
    # ${setStable} is false if a testing or bugfix should be created
    if [ ${setStable} == false -a ${createBugfixBranch} == true ]
    then
        echo "Bugfix branches can only be created for stable releases."
        echo "Disabling bugfix branch creation."
        createBugfixBranch=false
        checkoutBugfixBranch=false
        checkoutBugfixBranchParam=''
    fi
    
    # ----------------------------------------------------------------------
    # if a version out of a tag should be created, then no new tag is needed
    if [ $setTaged == true -a $createTag == true ]
    then
        echo "You cannot create a package out of a tag and create a new tag!"
        echo "Disabling create tag and checkout tag."
        createTag=false
        checkoutTag=false
    fi
    
    # ------------------------------------------------------
    # If version should _not_ be updated, disable everything 
    # depending on the version number
    if ! ${updateVersion}
    then
        createTag=false
        checkoutTag=false
        createBugfixBranch=false
        checkoutBugfixBranch=false
        myecho "Parameter '--update-version-number' not given, so creation and checkout of bugfix branch and tag is disabled."
    fi
    
    # ---------------------------------------------------------------------
    # If a build out of a tag or a bugfix branch should be done and if a
    # version number is given (which means the build should _not_ build the
    # latest version), then the target number is required too.
    if [ ${setBugfix} == true -o ${setTaged} == true ]
    then
        if [ ${versionToSetGiven} == true -a ${targetToBuildGiven} == false ] || [ ${versionToSetGiven} == false -a ${targetToBuildGiven} == true ]
        then
            echo ""
            echo "!!! If you want to build a package out of a tag or a branch which is not the"
            echo "    latest version, you must specify the version and the build target! See" 
            echo "    parameters '--version' and '--target'."
            echo ""
            return ${WRONG_PARAMETER}
        fi
    fi

    return 0
}