path: root/localdebpool

#!/bin/sh

set -e

ORIGIN="Jones"
LABEL="Jones"
DISTS="etch lenny squeeze sid"
ARCHS="i386 powerpc amd64"

PRVBASE=~/public_debian
PUBBASE=~/public_websites/debian.jones.dk
#PUBTOSRC=../../public_debian

debugprint() {
    [ -n "$DEBUG" ] || return 0
    debuglevel="${2:-1}"
    [ "$DEBUG" -ge "$debuglevel" ] || return 0
    echo 1>&2 "$1"
}

compactlist() {
    ( for item in $@; do echo $item; done ) \
        | sort -u \
        | tr '\n' ' ' \
        | sed 's/[[:space:]]\+/ /g; s/^[[:space:]]//; s/[[:space:]]$//'
}

regexfromlist() {
    echo $@ | sed 's/[[:space:]]\+/\\|/g; s/^/\\(/; s/$/\\)/'
}

sectionsfromhintstream() {
    perl -ne 's/^Sections:\W*// && do { s/\W*,\W*/\n/g; s/\W*$/\n/; print; }'
}

pkginfofromprvpkgdir() {
    package="$(basename "$1")"
    pool="$(dirname "$1" | sed 's,.*/pool-\([^/]\+\)/\?.*,\1,; s,-all$,,')"
    dist="$(echo "$pool" | sed 's,[^a-z].*$,,')"
    buildhost="$(echo $(dirname "$@") | sed 's,^\([^/]\+\)/pool-.*,\1,')"

    echo "$package $pool $dist $buildhost"
}

archsfromdirs() {
    archs="$( \
        find "$@" -type l -exec find '{}'/ -type f -name '*.deb' ';' \
            | sed 's/^.*_\([a-z0-9-]\+\)\.deb$/\1/; s/\ball\b/'"$ARCHS"'/g' \
    )"
    archs="$(compactlist $archs)"
    debugprint "Archs found: \"$archs\"" "2"
    for arch in $archs; do
        valid=
        for arch_supported in $ARCHS; do
            case $arch in
                $arch_supported)
                debugprint "Arch ok: \"$arch\"" "2"
                echo "$arch"
                valid=1
                ;;
            esac
        done
        if [ -z "$valid" ]; then
            # TODO: Optionally just skip
            echo 1>&2 "ERROR: Unsupported architecture: \"$arch\"."
            exit 1
        fi
    done
}

distsfromprvgrpdirs() {
    dists="$( \
        find "$@" -type l -exec find '{}'/ -type f -name '*.deb' ';' \
            | sed 's,^.*/sections/[^/]*/\([^/]\+\)/.*$,\1,' \
    )"
    dists="$(compactlist $dists)"
    debugprint "Dists found: \"$dists\"" "2"
    for dist in $dists; do
        valid=
        for dist_supported in $DISTS; do
            case $dist in
                $dist_supported)
                debugprint "Dist ok: \"$dist\"" "2"
                echo "$dist"
                valid=1
                ;;
            esac
        done
        if [ -z "$valid" ]; then
            # TODO: Optionally just skip
            echo 1>&2 "ERROR: Unsupported distribution: \"$dist\"."
            exit 1
        fi
    done
}

genlist() {
    section="$1"
    dist="$2"
    arch="$3"
    srcdir="$4"
    basedir="$5"
    case "$arch" in
        source)
        destdir="$basedir/source";
        cmd="dpkg-scansources";
        file="Sources";
        ;;
        *)
        destdir="$basedir/binary-$arch";
        cmd="dpkg-scanpackages -a$arch";
        file="Packages";
        ;;
    esac
    mkdir -p "$destdir"
    debugprint "genlist: \"$cmd . /dev/null pkg/$section/\"" "2"
    ( cd "$srcdir" && $cmd . /dev/null pkg/$section/ ) > "$destdir/$file"
    if [ -s "$destdir/$file" ]; then
        debugprint "Finalizing list at \"$destdir/\"" "2"
        gzip -c "$destdir/$file" > "$destdir/$file.gz"
        bzip2 -c "$destdir/$file" > "$destdir/$file.bz2"
        cat <<EOF > "$destdir/Release"
Archive: $dist
Component: $section
Origin: $ORIGIN
Label: $LABEL
Architecture: $arch
EOF
    else
        debugprint "purge empty list at \"$destdir/\"" "2"
        rm -f "$destdir/$file" "$destdir/$file.gz" "$destdir/$file.bz2" "$destdir/Release"
        rmdir -p --ignore-fail-on-non-empty "$destdir"
    fi
}

genrelease() {
    dist="$1"
    shift
    sections="$@"
    archs="$(archsfromdirs "$PRVBASE/sections"/*/"$dist")"
    archs="$(compactlist $archs)"
    case "$dist" in
        etch) suite="oldstable";;
        lenny) suite="stable";;
        squeeze) suite="testing";;
        sid) suite="unstable";;
    esac
    cat <<EOF > "$PUBBASE/dists/$dist/Release"
Origin: $ORIGIN
Label: $LABEL
Suite: $suite
Codename: $dist
Architectures: $archs
Components: $sections
EOF
}

packages="$@"
packages="$(compactlist $packages)"
debugprint "Packages: \"$packages\""

case "$packages" in
    -a|--all)
    pkg_re=".*"
    ;;
    "")
    echo 1>&2 "ERROR: No package(s) provided."
    exit 1
    ;;
    *)
    pkg_re="\b$(regexfromlist $packages)\b"
    ;;
esac

# Find packages in $prvpkgdir belonging to $sections
#
#   $PRVBASE/$buildhost/pool-$pool/$package/
#
batchsections="$( \
    find "$PRVBASE" -type f -regex '.*/'"$pkg_re"'/HINTS' -exec cat '{}' ';' \
        | sectionsfromhintstream
)"
batchsections="$(compactlist $batchsections)"
debugprint "Sections in batch: \"$batchsections\""

batchsections_re=
if [ -n "$batchsections" ]; then
    batchsections_re="\b$(regexfromlist ${batchsections/+/\\\\+})\b"
else
    echo 1>&2 "ERROR: Package(s) $@ was not found in any section."
    exit 1
fi

debugprint "Clean dangling symlinks below \"$PRVBASE\" and \"$PUBBASE\"..."
symlinks -dr ${DEBUG:+-v} "$PRVBASE" "$PUBBASE"

# Create/update symlink farms $prvgrpdir and $pubpkgdir
#
#   $PRVBASE/sections/$section/$dist/$section/$package/$pool/$buildhost
#   $PUBBASE/pkg/$package/$pool/$buildhost
#
cd "$PRVBASE" && find * -type f -name HINTS -exec grep -q "^Sections:.*$batchsections_re" '{}' ';' -printf '%h\n' \
    | while read prvpkgdir; do
    debugprint "prvpkgdir: \"$prvpkgdir\""
    set -- $(pkginfofromprvpkgdir "$prvpkgdir")
    package="$1" pool="$2" dist="$3" buildhost="$4"
    shift 4
    pkgsections="$(cat "$PRVBASE/$prvpkgdir/HINTS" | sectionsfromhintstream)"
    pkgsections="$(compactlist $pkgsections)"
    for section in $pkgsections; do
        subdir="$section/$package/$pool"
        mkdir -p "$PUBBASE/pkg/$subdir"
        ln -sf -T "$PRVBASE/$prvpkgdir" "$PUBBASE/pkg/$subdir/$buildhost"
        mkdir -p "$PRVBASE/sections/$section/$dist/$subdir"
        ln -sf -T "../../../../../../$prvpkgdir" "$PRVBASE/sections/$section/$dist/$subdir/$buildhost"
    done
done

# Create/update package lists
#
#   $PUBBASE/dists/$dist/$section/{binary-$arch,source}
#
for section in $batchsections; do
    dists="$(distsfromprvgrpdirs "$PRVBASE/sections/$section")"
    for dist in $dists; do
        debugprint "genlists \"\$PRVBASE/sections/$section/$dist\" -> \"\$PUBBASE/dists/$dist/$section\""
        prvgrpdir="$PRVBASE/sections/$section/$dist/$section"
        pubpkgdir="$PUBBASE/dists/$dist/$section"
        archs="$(archsfromdirs "$prvgrpdir")"
        for arch in $archs; do
            genlist "$section" "$dist" "$arch" "$prvgrpdir" "$pubpkgdir"
        done
        [ -z "$archs" ] || genlist "$section" "$dist" "source" "$prvgrpdir" "$pubpkgdir"
    done
done

# Create/update Release files
#
#   $PUBBASE/dists/$dist/Release
#
allsections="$( \
    find "$PRVBASE" -type f -name HINTS -exec cat '{}' ';' \
        | sectionsfromhintstream
)"
allsections="$(compactlist $allsections)"
debugprint "All sections: \"$allsections\""

dists="$(distsfromprvgrpdirs "$PRVBASE/sections")"
dists="$(compactlist $dists)"
for dist in $dists; do
    genrelease "$dist" ${allsections}
done

exit 0