#!/bin/sh

GL_PACKAGE_CONF=/tmp/share/gitolite/conf
# must be the same as the value for the same variable in
# $GL_PACKAGE_CONF/example.gitolite.rc.  Sorry about the catch-22 :)

# TODO need to fix for portability to ksh and so on
# TODO need to get the version in there somehow

# This program is meant to be completely non-interactive, suitable for running
# server-side from a "post RPM/DEB install" script, or manually by users.
# Please see the doc/0-user-setup.mkd for details.

# usage:
#   $0 [foo.pub]

# The pubkey filename must end with ".pub" and is mandatory when you first run
# this command.  Otherwise it is optional, and can be used to override a
# pubkey file if you happen to have lost all gitolite-access to the repos (but
# do have shell access via some other means)

die() { echo "$@"; echo death at line number ${BASH_LINENO[0]}; exit 1; }

pubkey_file=$1
admin_name=
if [[ -n $pubkey_file ]]
then
    [[ $pubkey_file =~ .pub$ ]] || die "$pubkey_file must end in .pub"
    [[ -f $pubkey_file ]] || die "cant find $pubkey_file"
    admin_name=$(basename $pubkey_file .pub)
fi

if [[ -f ~/.gitolite.rc ]]
then
    perl -ne 's/^\s+//; s/[\s=].*//; print if /^\$/;' < $GL_PACKAGE_CONF/example.gitolite.rc | sort > .newvars
    perl -ne 's/^\s+//; s/[\s=].*//; print if /^\$/;' < ~/.gitolite.rc                       | sort > .oldvars
    comm -23 .newvars .oldvars > .diffvars
    if [[ -s .diffvars ]]
    then
        cp $GL_PACKAGE_CONF/example.gitolite.rc ~/.gitolite.rc.new
        echo new version of the rc file saved in ~/.gitolite.rc.new
        echo
        echo please update ~/.gitolite.rc manually if you need features
        echo controlled by any of the following variables:
        echo ----
        sed -e 's/^/    /' < .diffvars
        echo ----
    fi
    rm -f .newvars .oldvars .diffvars
else
    [[ -n $pubkey_file ]] || die "looks like first run -- I need a pubkey file"
    cp $GL_PACKAGE_CONF/example.gitolite.rc ~/.gitolite.rc
fi

gl-install -q

GL_ADMINDIR=$(cd;perl -e 'do ".gitolite.rc"; print $GL_ADMINDIR')
REPO_BASE=$(  cd;perl -e 'do ".gitolite.rc"; print $REPO_BASE'  )

[[ -f $GL_ADMINDIR/conf/gitolite.conf ]] || {
    cat <<EOF > $GL_ADMINDIR/conf/gitolite.conf
        repo    gitolite-admin
                RW+     =   $admin_name

        repo    testing
                RW+     =   @all
EOF
}
[[ -n $pubkey_file ]] && cp $pubkey_file $GL_ADMINDIR/keydir

touch $HOME/.ssh/authorized_keys
gl-compile-conf -q

# setup push-to-admin
od=$PWD
cd; cd $REPO_BASE/gitolite-admin.git
GIT_WORK_TREE=$GL_ADMINDIR git add conf/gitolite.conf keydir
GIT_WORK_TREE=$GL_ADMINDIR git diff --cached --quiet || GIT_WORK_TREE=$GL_ADMINDIR git commit -am start
cd $od

# now that the admin repo is created, you have to set the hooks properly; best
# do it by running install again
gl-install -q