contrib/packaging/builddeb

config: read configs from directories in lexicographical order

Mercurial currently reads the .rc files specified in HGRCPATH (and the
system-default paths) in directory order, which is unspecified. My
team at work maintains a set of .rc files. So far there has been no
overlap between them, so we had not noticed this behavior. However, we
would now like to release some common .rc files and then have another
one per plaform with platform-specific overrides. It would be nice if
we can determine the load order by choosing names carefully. This
patch enables that by loading the .rc files in lexicographical order.

Before this patch, the added test case would consistently say "30" on
my file system (whatever I have -- some Linux FS).

Differential Revision: https://phab.mercurial-scm.org/D6193

#!/bin/sh -e
#
# Build a Mercurial debian package from the current repo
#
# Tested on Jessie (stable as of original script authoring.)

. $(dirname $0)/packagelib.sh

ROOTDIR=$(cd $(dirname $0)/../.. > /dev/null; pwd)

BUILD=1
CLEANUP=1
DISTID=`(lsb_release -is 2> /dev/null | tr '[:upper:]' '[:lower:]') || echo debian`
CODENAME=`lsb_release -cs 2> /dev/null || echo unknown`
DEBFLAGS=-b

cleanup() {
    if [ "$CLEANUP" ]; then
        rm -r "$ROOTDIR/debian";
    fi
}

while [ "$1" ]; do
    case "$1" in
    --distid )
        shift
        DISTID="$1"
        shift
        ;;
    --codename )
        shift
        CODENAME="$1"
        shift
        ;;
    --cleanup )
        shift
        BUILD=
        ;;
    --build )
        shift
        CLEANUP=
        ;;
    --source-only )
        shift
        DEBFLAGS=-S
        ;;
    * )
        echo "Invalid parameter $1!" 1>&2
        exit 1
        ;;
    esac
done

cd "$ROOTDIR"

trap 'cleanup' EXIT

set -u

if [ ! -d .hg ]; then
    printf "You are inside %s, which is not the root of a Mercurial repository\n" $(pwd) 1>&2
    exit 1
fi

gethgversion
debver="$version"
if [ -n "$type" ] ; then
    debver="$debver~$type"
fi
if [ -n "$distance" ] ; then
    debver="$debver+$distance-$CODENAME-$node"
elif [ "$DEBFLAGS" = "-S" ] ; then
    # for building a ppa (--source-only) for a release (distance == 0), we need
    # to version the distroseries so that we can upload to launchpad
    debver="$debver~${CODENAME}1"
fi

control=debian/control
changelog=debian/changelog

if [ "$BUILD" ]; then
    if [ -d debian ] ; then
        printf "Error! debian control directory already exists at %s/debian\n" $(pwd)
        exit 1
    fi

    cp -r "$ROOTDIR"/contrib/packaging/debian debian

    sed -i.tmp "s/__VERSION__/$debver/" $changelog
    sed -i.tmp "s/__DATE__/$(date --rfc-2822)/" $changelog
    sed -i.tmp "s/__CODENAME__/$CODENAME/" $changelog
    rm $changelog.tmp

    # remove the node from the version string
    SRCFILE="mercurial_$(echo $debver | sed "s,-$node,,").orig.tar.gz"
    "$ROOTDIR/hg" archive $SRCFILE
    mv $SRCFILE ..
    debuild -us -uc -i -I $DEBFLAGS
    if [ $? != 0 ]; then
        echo 'debuild failed!'
        exit 1
    fi

fi
if [ "$CLEANUP" ] ; then
    echo
    OUTPUTDIR=${OUTPUTDIR:=packages/$DISTID-$CODENAME}
    mkdir -p "$OUTPUTDIR"
    find ../mercurial*.deb ../mercurial_*.build ../mercurial_*.changes \
          ../mercurial*.dsc ../mercurial*.gz \
          -type f -newer $control -print0 2>/dev/null | \
      xargs -Inarf -0 mv narf "$OUTPUTDIR"
    echo "Built packages for $debver:"
    find "$PWD"/"$OUTPUTDIR" -type f -newer $control -name '*.deb'
fi