Simplify/correct finding the hg executable (fixes issue644)
Simply use find_exe('hg') as the default value for $HG and require to manually
set it if you have special requirements.
While the default will not always be 100% correct (i.e. the identical hg
version) for many users it is and for the others the hg executable found in
the PATH should do most things correctly.
Developers or other users with multiple installs can set $HG or run something
like util.set_hgexecutable in their shell or python scripts.
Additionally util.hgexecutable() is now available so extensions can access
the value with a public interface, too.
#!/bin/sh
#
# Build a Mercurial RPM in place.
#
# Bryan O'Sullivan <bos@serpentine.com>
root="`hg root 2>/dev/null`"
specfile=contrib/mercurial.spec
if [ -z "$root" ]; then
echo 'You are not inside a Mercurial repository!' 1>&2
exit 1
fi
rpmdir=/tmp/"`basename $root | sed 's/ /_/'`"-rpm
cd "$root"
rm -rf $rpmdir
mkdir -p $rpmdir/RPMS
hg clone "$root" $rpmdir/BUILD
if [ ! -f $specfile ]; then
echo "Cannot find $specfile!" 1>&2
exit 1
fi
tmpspec=/tmp/`basename "$specfile"`.$$
# Use the most recent tag as the version.
version=`hg tags | perl -e 'while(<STDIN>){if(/^(\d\S+)/){print$1;exit}}'`
# Compute the release number as the difference in revision numbers
# between the tip and the most recent tag.
release=`hg tags | perl -e 'while(<STDIN>){/^(\S+)\s+(\d+)/;if($1eq"tip"){$t=$2}else{print$t-$2+1;exit}}'`
tip=`hg -q tip`
# Beat up the spec file
sed -e 's,^Source:.*,Source: /dev/null,' \
-e "s,^Version:.*,Version: $version," \
-e "s,^Release:.*,Release: $release," \
-e "s,^%prep.*,Changeset: $tip\n\0," \
-e 's,^%setup.*,,' \
$specfile > $tmpspec
rpmbuild --define "_topdir $rpmdir" -bb $tmpspec
if [ $? = 0 ]; then
rm -rf $tmpspec $rpmdir/BUILD
mv $rpmdir/RPMS/*/* $rpmdir && rm -r $rpmdir/RPMS
echo
echo "Packages are in $rpmdir"
fi