#!/bin/bash
repo=$1
into=$2

# Check whether this indeed looks like a local tree.
if [ ! -f $into/gcc/version.c ]; then
    echo "This does not seem to be a GCC tree!"
    exit
fi

# Check for known version control systems.
if [ -d $repo/.bzr ]; then
    GCC_GIT=${GCC_BZR-${BZR-bzr}}
    vcs_type="bzr"
elif [ -d $repo/.svn ]; then
    GCC_SVN=${GCC_SVN-${SVN-svn}}
    vcs_type="svn"
else
    echo "This does not seem to be a GCC GIT/Bzr tree!"
    exit
fi

rm -f $into/LAST_UPDATED $into/gcc/REVISION

case $vcs_type in
    svn)
	revision=${REVNO:-`svn info $1 | awk '/Revision:/ { print $2 }'`}
	branch=`svn info $1 | sed -ne "/URL:/ {
	    s,.*/trunk,trunk,
	    s,.*/branches/,,
	    s,.*/tags/,,
	    p
	}"`
        ;;

    bzr)
        revision=${REVNO:-`bzr revno $repo`}
        branch=`bzr info $repo | grep "parent branch" | awk -F / '{ print $(NF-2) "/" $(NF-1); }'`
        ;;
esac

{
  date
  echo "`TZ=UTC date` (revision $revision)"
} > $into/LAST_UPDATED

echo "[$branch revision $revision]" > $into/gcc/REVISION