#!/bin/bash

# ----------------------------------------------------------------------
# change these lines to suit
testconf=$HOME/GITOLITE-TESTCONF
gitolite_url=https://github.com/sitaramc/gitolite
    # change it to something local for frequent use
    # gitolite_url=file:///tmp/gitolite.git

# ----------------------------------------------------------------------
# Usage: gitolite-local <options>
#
# Test your gitolite.conf rule lists on your LOCAL machine (without even
# pushing to the server!)
#
# (one-time)
#
#   1.  put this code somewhere in your $PATH if you wish
#   2.  edit the line near the top of the script if you want to use some other
#       directory than the default, for "testconf".
#   2.  prepare the "testconf" directory by running:
#           gitolite-local prep
#
# (lather, rinse, repeat)
#
#   1.  edit the conf (see notes below for more)
#           gitolite-local edit
#   2.  compile the conf
#           gitolite-local compile
#   3.  check permissions using "info" command:
#           gitolite-local info USERNAME
#   4.  check permissions using "access" command:
#           gitolite-local access <options for gitolite access command>
#   5.  clone, fetch, and push if you like!
#           gitolite-local clone <username> <reponame> <other options for clone>
#           gitolite-local fetch <username> <options for fetch>
#           gitolite-local push  <username> <options for push>
#
# note on editing the conf: you don't have to use the edit command; you can
# also directly edit '.gitolite/conf/gitolite.conf' in the 'testconf'
# directory.  You'll need to do that if your gitolite conf consists of more
# than just one file (like if you have includes, etc.)
#
# note on the clone command: most of the options won't work for clone, unless
# git is ok with them being placed *after* the repo name.

# ----------------------------------------------------------------------
die() { echo "$@" >&2; exit 1; }
usage() { perl -lne 'print substr($_, 2) if /^# Usage/../^$/' < $0; exit 1; }
[ -z "$1" ] && usage

# ----------------------------------------------------------------------
if [ $1 == prep ]
then
    set -e

    [ -d $testconf ] && die "directory '$testconf' already exists"

    mkdir $testconf
    cd $testconf

    export HOME=$PWD

    echo getting gitolite source...
    git clone $gitolite_url gitolite
    echo

    echo installing gitolite...
    gitolite/install >/dev/null
    echo

    echo setting up gitolite...
    export PATH=$PWD/gitolite/src:$PATH
    gitolite setup -a admin
    echo

    exit 0
fi

od=$PWD
cd $testconf
export HOME=$PWD
export PATH=$PWD/gitolite/src:$PATH

if [ $1 = edit ]
then
    editor=${EDITOR:-vim}
    $editor .gitolite/conf/gitolite.conf
elif [ $1 = compile ]
then
    gitolite compile
elif [ $1 = compile+ ]
then
    gitolite compile\; gitolite trigger POST_COMPILE
elif [ $1 = info ]
then
    shift
    user=$1
    shift

    GL_USER=$user gitolite info "$@"
elif [ $1 = access ]
then
    shift

    gitolite access "$@"
elif [ $1 = clone ]
then
    shift
    export G3T_USER=$1
    shift

    cd $od
    export GL_BINDIR=$HOME/gitolite/t
        # or you could do it the long way, using 'gitolite query-rc GL_BINDIR'
    repo=$1; shift
    git clone --upload-pack=$GL_BINDIR/gitolite-upload-pack file:///$repo "$@"
elif [ $1 = fetch ]
then
    shift
    export G3T_USER=$1
    shift

    cd $od
    export GL_BINDIR=$HOME/gitolite/t
    git fetch --upload-pack=$GL_BINDIR/gitolite-upload-pack "$@"
elif [ $1 = push ]
then
    shift
    export G3T_USER=$1
    shift

    cd $od
    export GL_BINDIR=$HOME/gitolite/t
    git push --receive-pack=$GL_BINDIR/gitolite-receive-pack "$@"
fi