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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] [MODES]
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 using different modes while using simple tar
content list by default.
OPTIONS
-M, --makepkg-config Set an alternate makepkg configuration file
-v, --verbose Provide more detailed/unfiltered output
-h, --help Show this help text
MODES
-l, --list Activate content list diff mode (default)
-d, --diffoscope Activate diffoscope diff mode
-p, --pkginfo Activate .PKGINFO diff mode
-b, --buildinfo Activate .BUILDINFO diff mode
_EOF_
}
MAKEPKG_CONF=/etc/makepkg.conf
VERBOSE=0
TARLIST=0
DIFFOSCOPE=0
PKGINFO=0
BUILDINFO=0
# option checking
while (( $# )); do
case $1 in
-h|--help)
usage
exit 0
;;
-M|--makepkg-config)
MAKEPKG_CONF="$2"
shift 2
;;
-l|--list)
TARLIST=1
shift
;;
-d|--diffoscope)
DIFFOSCOPE=1
shift
;;
-p|--pkginfo)
PKGINFO=1
shift
;;
-b|--buildinfo)
BUILDINFO=1
shift
;;
-v|--verbose)
VERBOSE=1
shift
;;
--)
shift
break
;;
-*,--*)
die "invalid argument: %s" "$1"
;;
*)
break
;;
esac
done
if ! (( DIFFOSCOPE || TARLIST || PKGINFO || BUILDINFO )); then
TARLIST=1
fi
# Source makepkg.conf; fail if it is not found
if [[ -r "${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.XXXXXXXX)
tar_list() {
bsdtar tf "$*" | if (( VERBOSE )); then
cat
else
sed -E 's|^usr/lib/modules/[0-9][^/]+|usr/lib/modules/[…]|g'
fi | sort
}
diff_pkgs() {
local oldpkg=$1
local newpkg=$2
if (( TARLIST )); then
tar_list "$oldpkg" > "$TEMPDIR/filelist-old"
tar_list "$newpkg" > "$TEMPDIR/filelist"
sdiff -s "$TEMPDIR/filelist-old" "$TEMPDIR/filelist"
fi
if (( PKGINFO )); then
bsdtar xOqf "$oldpkg" .PKGINFO > "$TEMPDIR/pkginfo-old"
bsdtar xOqf "$newpkg" .PKGINFO > "$TEMPDIR/pkginfo"
sdiff -s "$TEMPDIR/pkginfo-old" "$TEMPDIR/pkginfo"
fi
if (( BUILDINFO )); then
bsdtar xOqf "$oldpkg" .BUILDINFO > "$TEMPDIR/buildinfo-old"
bsdtar xOqf "$newpkg" .BUILDINFO > "$TEMPDIR/buildinfo"
sdiff -s "$TEMPDIR/buildinfo-old" "$TEMPDIR/buildinfo"
fi
if (( DIFFOSCOPE )); then
diffoscope "$(readlink -e "$oldpkg")" "$(readlink -e "$newpkg")"
fi
}
for _pkgname in "${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" "$pkgurl"
fi
diff_pkgs "$TEMPDIR/$oldpkg" "$pkgfile"
done
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