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#!/bin/bash |
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# https://gist.github.com/smoser/d3dbf2b8a073675e0700472e12513e0a |
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VERBOSITY=0 |
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TEMP_D="" |
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error() { echo "$@" 1>&2; } |
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fail() { local r=$?; [ $r -eq 0 ] && r=1; failrc "$r" "$@"; } |
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failrc() { local r=$1; shift; [ $# -eq 0 ] || error "$@"; exit $r; } |
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Usage() { |
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cat <<EOF |
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Usage: ${0##*/} [ options ] <<ARGUMENTS>> |
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build-upstream-pkg <upstream-commitish> <packaging-commitish> |
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options: |
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--version VERSION make the upstream version VERSION |
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default is to use git-describe |
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--output DIR put created files in DIR |
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-v | --verbose increase verbosity |
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If you have the following remotes: |
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upstream with 'master' branch |
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pkg with 'ubuntu/devel' |
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then you'd do: |
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$ build-upstream-pkg upstream/master ubuntu/devel |
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EOF |
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} |
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bad_Usage() { Usage 1>&2; [ $# -eq 0 ] || error "$@"; return 1; } |
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cleanup(){ |
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[ ! -d "$TEMP_D" ] || rm -Rf "$TEMP_D"; |
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git worktree prune |
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} |
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debug() { |
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local level=${1}; shift; |
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[ "${level}" -gt "${VERBOSITY}" ] && return |
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error "${@}" |
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} |
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get_version() { |
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# get version if not provided |
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local ref=$1 match="" out="" version="" |
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for match in "" "[0-9]*" "v[0-9]*"; do |
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out=$(git describe --abbrev=8 ${match:+"--match=$match"} $ref 2>&1) && |
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[ -n "$out" ] && break |
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out="" |
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done |
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if [ -z "$out" ]; then |
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# try with --tags |
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for match in "" "[0-9]*" "v[0-9]*"; do |
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out=$(git describe --abbrev=8 --tags ${match:+"--match=$match"} $ref 2>&1) && |
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[ -n "$out" ] && break |
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done |
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fi |
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case "$out" in |
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"") fail "failed to git-describe anything";; |
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[a-z][a-z]*-[0-9.]*) version=${out#*-};; # lxc-4.0.0-123-gxxx |
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[a-z]*[0-9.]*) |
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version=$out |
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while [ "${version}" != "${version#[a-z]}" ]; do |
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version=${version#[a-z]} |
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done |
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;; |
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[0-9]*-[0-9]*-g[a-f0-9]*) version=$out;; |
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esac |
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debug 1 "version now $version from $out" |
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case "$version" in |
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[0-9]*-[0-9]*-g[a-f0-9]*) :;; |
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*) fail "git describe got us '$out'" \ |
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"not sure how to turn that into X.Y.Z-<number>-<gHASH>" |
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esac |
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_RET=$version |
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} |
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main() { |
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local short_opts="ho:vV:" |
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local long_opts="help,output:,version:,verbose" |
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local getopt_out="" |
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getopt_out=$(getopt --name "${0##*/}" \ |
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--options "${short_opts}" --long "${long_opts}" -- "$@") && |
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eval set -- "${getopt_out}" || |
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{ bad_Usage; return; } |
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local cur="" next="" out_d="../out" version="" |
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while [ $# -ne 0 ]; do |
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cur="$1"; next="$2"; |
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case "$cur" in |
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-h|--help) Usage ; exit 0;; |
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-o|--output) out_d=$next; shift;; |
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-V|--version) version=$next; shift;; |
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-v|--verbose) VERBOSITY=$((${VERBOSITY}+1));; |
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--) shift; break;; |
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esac |
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shift; |
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done |
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[ $# -ge 2 ] || { bad_Usage "got $# args, expected 2"; return; } |
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local up_cish="$1" pkg_cish="$2" |
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shift 2 |
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local build_cmd="" |
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if [ $# -eq 0 ]; then |
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build_cmd=( debuild -d -S -nc ) |
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else |
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build_cmd=( "$@" ) |
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fi |
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# check both commitish |
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local up_hash="" pkg_hash="" |
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up_hash=$(git rev-parse "$up_cish") || |
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fail "failed to get hash for $up_cish" |
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pkg_hash=$(git rev-parse "$pkg_cish") || |
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fail "failed to get hash for $pkg_cish" |
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local user="" email="" |
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user=$(git config user.name) && |
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email=$(git config user.email) || |
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fail "failed to get user or email" |
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local start_d="$PWD" out_d_in="$out_d" |
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[ -d "$out_d" ] || mkdir -p "$out_d" || |
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fail "failed to create $out_d" |
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out_d=$(cd "$out_d" && pwd) || { |
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fail "failed to get full path to $out_d_in" |
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} |
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TEMP_D=$(mktemp -d "${TMPDIR:-/tmp}/${0##*/}.XXXXXX") || |
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fail "failed to make tempdir" |
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trap cleanup EXIT |
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local wtd="${TEMP_D}/wtd" |
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git worktree add --force "$wtd" "$pkg_hash" || |
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fail "failed worktree add $wtd $ref" |
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cd "$wtd" |
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local pkg_ver="0upstream1" pkg_name="" old_full_ver="" old_pkg_ver="" |
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# get the pkg name from pkg commit |
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git checkout "$pkg_hash" || |
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fail "failed to checkout $pkg_hash" |
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pkg_name=$(dpkg-parsechangelog --show-field Source) || |
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fail "failed to read Source from changelog" |
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old_full_ver=$(dpkg-parsechangelog --show-field Version) || |
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fail "failed reading package version" |
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local epoch="" |
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case "$old_full_ver" in |
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[0-9]:*) epoch=${old_full_ver%%:*};; |
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esac |
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if [ -f debian/source/format ] && |
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out=$(grep "(native)" debian/source/format); then |
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fail "debian/source/format says this is native package" |
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fi |
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git checkout "$up_hash" || |
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fail "failed to checkout $up_hash" |
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if [ -z "$version" ]; then |
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get_version && version="$_RET" || |
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fail "failed to get version from $up_hash" |
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fi |
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debug 1 "pkg_name is ${pkg_name} upstream_version=$version" |
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local orig_tarball="${TEMP_D}/${pkg_name}_${version}.orig.tar.gz" |
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# make an upstream tarball that does not contain debian/ |
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tar -czf "${orig_tarball}" \ |
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"--transform=s,^[.]/,${pkg_name}-${version}/," \ |
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"--exclude=.git" "--exclude=debian" . || |
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fail "failed to create upstream tarball ${pkg_name}_${version}" |
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# checkout pkg commitish |
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git checkout "$pkg_hash" || |
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fail "failed to checkout $pkg_hash" |
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# git rm anything not debian/ |
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local f="" rms="" |
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rms=( ) |
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for f in * .*; do |
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case "$f" in |
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.git|.|..|debian) continue;; |
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esac |
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rms[${#rms[@]}]="$f" |
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done |
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local cur_hash="$pkg_hash" |
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if [ "${#rms[@]}" -eq 0 ]; then |
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debug 1 "pkg tree was debian-only" |
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else |
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git rm --quiet -r "${rms[@]}" || fail "failed to git remove files" |
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git commit --quiet -a -m "remove non-debian files from pkg branch" || |
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fail "failed to commit cleanup" |
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cur_hash=$(git rev-parse HEAD) |
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fi |
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# add debian/changelog entry |
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local suite="UNRELEASED" |
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debug 1 "${pkg_name} (${epoch:+${epoch}:}$version-${pkg_ver}) $suite; urgency=medium" |
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cat >debian/changelog <<EOF |
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${pkg_name} (${epoch:+${epoch}:}$version-${pkg_ver}) $suite; urgency=medium |
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* new upstream version $version. |
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-- $user <$email> $(date -R) |
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EOF |
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[ $? -eq 0 ] || fail "failed to write debian/changelog" |
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git show "$cur_hash:debian/changelog" >> debian/changelog || |
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fail "failed to append to debian changelog" |
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# commit |
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git commit -m "update changelog" debian/changelog || |
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fail "failed to commit changelog update" |
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cur_hash=$(git rev-parse HEAD) |
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# I think its a bug in dpkt-source, but it complains about |
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# deleted files, so make it not have deleted files. |
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tar --strip-components=1 -xzf "$orig_tarball" || |
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fail "failed to extrat tarball" |
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# invoke debuild |
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debug 0 "building $cur_hash with: ${build_cmd[*]}" |
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"${build_cmd[@]}" || |
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fail "FAILED: ${build_cmd[*]}" |
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debug 0 "built $pkg_name at $version. source tree in $cur_hash" |
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debug 0 "wrote:" |
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for f in "${TEMP_D}/"*; do |
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[ -f "$f" ] || continue |
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cp "$f" "$out_d/" && echo " ${out_d_in}/${f##*/}" || |
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fail "failed to copy $f to $out_d" |
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done |
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cd "$start_d" |
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return 0 |
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} |
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main "$@" |
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# vi: ts=4 expandtab |
