#!/bin/bash
# Shell Script for super-respositores that executes git on all sub-repositories
# Homepage at http://www.bitweaver.org/wiki/supergit
# Licensed under the GPL
# Authors: github.com/spiderr 

function usage {
        appName=`basename $0`
        echo "Welcome to $appName. It acts on all directories in your project as if they were sub-respositories. For most commands, you simply type what you would normally for git, however you simply type $appName with desired parameters in the super-repository root of your project. For example:"
        echo "-- To clone, type '$appName git@github.com:bitweaver/bitweaver.git -b DEV testbw' which will clone, then intiliaze + update submodules and checkout the master branch for each submodule"
        echo "-- To commit, in the super repo root, type '$appName commit -a'"
        echo "-- To push, in the super repo root, type '$appName push origin'"
}

function git_exec_subs {
        echo "executing on all subrepositories: git $@"
        TOP_DIR="`pwd`";
        for repo in `find "$TOP_DIR" -maxdepth 1 -mindepth 1 -type d -not -name .git` ; do
                echo "#### $repo - git $@"
                cd "$repo"
                git $@
        done
}

case "$1" in
        "clone")
                eval moduleName=\$$#
                moduleName=`basename $moduleName`

                cloneParams=$@

                if [ -z $moduleName ]; then
                        moduleName='source';
                        cloneParams="$cloneParams $moduleName"
                fi

                TOP_DIR="`pwd`/$moduleName";
                echo $TOP_DIR

                echo $1 to $moduleName;
                git $cloneParams 

                cd $TOP_DIR
                git submodule init
                git submodule update

                for repo in `find "$TOP_DIR" -maxdepth 1 -mindepth 1 -type d -not -name .git` ; do
                        cd "$repo";
                        git submodule init
                        git submodule update
                        git checkout master
                done
        ;;
        "")
                usage;
        ;;
        *)
                git_exec_subs $@;
        ;;
esac