view contrib/builddeb @ 29567:7e2b389418da

perf: import newer modules separately for earlier Mercurial

demandimport of early Mercurial loads an imported module immediately,
if a module is imported absolutely by "from a import b" style. Recent
perf.py satisfies this condition, because it does:

  - have "from __future__ import absolute_import" line
  - use "from a import b" style for modules in "mercurial" package

Before this patch, importing modules below prevents perf.py from being
loaded by earlier Mercurial, because these aren't available in such
Mercurial, even though there are some code paths for Mercurial earlier
than 1.9.

  - branchmap 2.5 (or bcee63733aad)
  - repoview  2.5 (or 3a6ddacb7198)
  - obsolete  2.3 (or ad0d6c2b3279)
  - scmutil   1.9 (or 8b252e826c68)

For example, setting "_prereadsize" attribute in perfindex() and
perfnodelookup() is effective only with Mercurial earlier than 1.8 (or
61c9bc3da402).

After this patch, "mercurial.error" is the only blocker in "from
mercurial import" statement for loading perf.py with Mercurial earlier
than 1.2. This patch ignores it, because just importing it separately
isn't enough.

#!/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

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
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

trap "if [ '$CLEANUP' ] ; then rm -r '$PWD/debian' ; fi" EXIT

set -u

if [ ! -d .hg ]; then
    echo 'You are not inside a Mercurial repository!' 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
        echo "Error! debian control directory already exists!"
        exit 1
    fi

    cp -r $PWD/contrib/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"
    "$PWD/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 $debver:"
    find "$OUTPUTDIR" -type f -newer $control -name '*.deb'
fi