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#!/bin/bash
#
# SPDX-License-Identifier: GPL-3.0-or-later
shopt -s extglob
m4_include(lib/common.sh)
usage() {
cat <<- _EOF_
Usage: ${BASH_SOURCE[0]##*/} [OPTIONS]
Searches for a locally built package corresponding to the PKGBUILD, and
downloads the last version of that package from the Pacman repositories.
It then compares them with diffoscope.
OPTIONS
-M, --makepkg-config Set an alternate makepkg configuration file
-h, --help Show this help text
_EOF_
}
MAKEPKG_CONF=/etc/makepkg.conf
# option checking
while (( $# )); do
case $1 in
-h|--help)
usage
exit 0
;;
-M|--makepkg-config)
MAKEPKG_CONF="$2"
shift 2
;;
--)
shift
break
;;
-*,--*)
die "invalid argument: %s" "$1"
;;
*)
break
;;
esac
done
# Source makepkg.conf; fail if it is not found
if [[ -r "${MAKEPKG_CONF}" ]]; then
# shellcheck source=makepkg-x86_64.conf
source "${MAKEPKG_CONF}"
else
die "${MAKEPKG_CONF} not found!"
fi
# Source user-specific makepkg.conf overrides
if [[ -r "${XDG_CONFIG_HOME:-$HOME/.config}/pacman/makepkg.conf" ]]; then
# shellcheck source=/dev/null
source "${XDG_CONFIG_HOME:-$HOME/.config}/pacman/makepkg.conf"
elif [[ -r "$HOME/.makepkg.conf" ]]; then
# shellcheck source=/dev/null
source "$HOME/.makepkg.conf"
fi
if [[ ! -f PKGBUILD ]]; then
die 'This must be run in the directory of a built package.'
fi
# shellcheck source=PKGBUILD.proto
. ./PKGBUILD
if [[ ${arch[0]} == 'any' ]]; then
CARCH='any'
fi
STARTDIR=$(pwd)
trap 'rm -rf $TEMPDIR' EXIT INT TERM QUIT
TEMPDIR=$(mktemp -d --tmpdir diffpkg-script.XXXX)
for _pkgname in "${pkgname[@]}"; do
comparepkg=$_pkgname
pkgurl=
target_pkgver=$(get_full_version "$_pkgname")
if ! pkgfile=$(find_cached_package "$_pkgname" "$target_pkgver" "$CARCH"); then
die 'tarball not found for package: %s' "${_pkgname}-$target_pkgver"
fi
ln -s "$pkgfile" "$TEMPDIR"
if (( $# )); then
case $1 in
*://*)
pkgurl=$1 ;;
/*|*/*)
pkgurl=$(readlink -m "$1") ;;
*.pkg.tar*)
pkgurl=$1 ;;
'')
;;
*)
comparepkg=$1 ;;
esac
shift
fi
[[ -n $pkgurl ]] || pkgurl=$(pacman -Spdd --print-format '%l' --noconfirm "$comparepkg") ||
die "Couldn't download previous package for %s." "$comparepkg"
oldpkg=${pkgurl##*/}
if [[ ${oldpkg} = "${pkgfile##*/}" ]]; then
die "The built package (%s) is the one in the repo right now!" "$_pkgname"
fi
if [[ $pkgurl = file://* || ( $pkgurl = /* && -f $pkgurl ) ]]; then
ln -s "${pkgurl#file://}" "$TEMPDIR/$oldpkg"
elif [[ -f "$PKGDEST/$oldpkg" ]]; then
ln -s "$PKGDEST/$oldpkg" "$TEMPDIR/$oldpkg"
elif [[ -f "$STARTDIR/$oldpkg" ]]; then
ln -s "$STARTDIR/$oldpkg" "$TEMPDIR/$oldpkg"
else
curl -fsLC - --retry 3 --retry-delay 3 -o "$TEMPDIR/$oldpkg" "$pkgurl"
fi
diffoscope $TEMPDIR/$oldpkg $pkgfile
done
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