git-svn-syncer

#!/bin/bash
# cron job for updating git-svn branches and pushing it to github for ci
#
# USAGE
#  git-svn-syncer [-v] --svn-branch texlive-source
#  git-svn-syncer [-v] luatex

set -e

if [ "x$1" = "x-v" ] ; then
  silent=false
  shift
else
  silent=true
fi

if [ "x$1" = "x--new" ] ; then
  masterBranch=trunk
  newMode=true
  shift
else
  masterBranch=master
  newMode=false
fi


if [ "x$1" = "x--svn-branch" ] ; then
  doSvnBranch=true
  shift
else
  doSvnBranch=false
fi

if [ "x$1" = "x--no-push" ] ; then
  doNoPush=true
  shift
else
  doNoPush=false
fi

BASEDIR=/home/norbert/git-svn-repos

GITSVNSOURCE=$BASEDIR/$1

if [ ! -d $GITSVNSOURCE ] ; then
    echo "No directory $GITSVNSOURCE, exit." >&2
    exit 1
fi

GIT="git --no-pager"

quiet_git() {
    stdout=$(tempfile)
    stderr=$(tempfile)

    if $silent ; then
    	if ! $GIT "$@" </dev/null >$stdout 2>$stderr; then
	    echo "STDOUT of git command:"
	    cat $stdout
	    echo "************"
            cat $stderr >&2
            rm -f $stdout $stderr
            exit 1
        fi
    else
	$GIT "$@" </dev/null
    fi

    rm -f $stdout $stderr
}

cd $GITSVNSOURCE

quiet_git checkout $masterBranch
quiet_git svn fetch --all
# actually not necessary in new mode
# but we do it since we copy files from it to the installer repo
# so we want the latest files checked out
if $newMode ; then
    quiet_git svn rebase
    : nothing to be done
else
    quiet_git svn rebase
fi

if $doSvnBranch ; then
    # now update the git svn data
    quiet_git checkout git-svn-data
    cp .git/svn/refs/remotes/git-svn/index .
    cp .git/refs/remotes/git-svn .
    git diff --quiet && git diff --staged --quiet || quiet_git commit -a -m "updating git svn data"
    quiet_git checkout master
fi
# not necessary anymore, trave.yml is contained in master now
#quiet_git checkout travis-ci
# don't use [skip ci] here because we only built the 
# last commit, which would stop building
#quiet_git merge master -m "merging master"

if $doNoPush ; then
    : ignore
else
    # the first pushes all configured push settings, see the
    # git/svn document
    # the second one pushes all branches under ref/heads
    if $newMode ; then
        quiet_git push
    else
        quiet_git push --all
    fi
fi