From ed12c7dcd69f1abf15a42ae1919b8c2166553318 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Mas=C5=82owski?= <mtjm@mtjm.eu>
Date: Tue, 14 Feb 2012 21:20:28 +0100
Subject: Add libreaddiff, a script to diff lists of packages in abs or db.

---
 libreaddiff | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100755 libreaddiff

diff --git a/libreaddiff b/libreaddiff
new file mode 100755
index 0000000..c8b5214
--- /dev/null
+++ b/libreaddiff
@@ -0,0 +1,97 @@
+#!/bin/bash
+# -*- coding: utf-8 -*-
+# Copyright (C) 2011, 2012  Michał Masłowski  <mtjm@mtjm.eu>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+set -e
+
+. /etc/libretools.conf
+custom_config=$XDG_CONFIG_HOME/libretools/libretools.conf
+[ -e $custom_config ] && . $custom_config
+
+for arg in "$@" ; do
+    case "$arg" in
+        -h|--h|--he|--hel|--help|-\?)
+            echo 'Usage: find-pkgs.sh repo [arch]
+
+This script outputs a diff of package names and versions in repo
+between pacman'\''s sync db and abslibre checkout.' >&2
+            exit 0
+            ;;
+    esac
+done
+
+# The repo to find missing packages in.
+repo=$1
+# The arch to check in Arch repos, other will have all arches checked.
+arch=${2:-mips64el}
+# A Python tuple of repos which don't have arch=any packages.
+archrepos='("core", "extra", "community")'
+
+diff -U0 \
+    <( (
+        cd /var/lib/pacman/sync
+        for f in $repo.db ; do
+            tar xOf $f | python -c 'import sys
+arch = None
+name = None
+version = None
+it = iter(sys.stdin)
+try:
+    while True:
+        line = next(it)
+        if line == "%ARCH%\n":
+            arch = next(it)
+            if arch == "'"$arch"'\n" or "'$repo'" not in '"$archrepos"':
+                print("%s-%s" % (name.strip(), version.strip()))
+        if line == "%NAME%\n":
+            name = next(it)
+        if line == "%VERSION%\n":
+            version = next(it)
+except StopIteration:
+    pass
+'
+        done
+    ) | sort ) \
+    <( (
+        cd "${WORKDIR}/abslibre"
+        # Needed to not include pkgnames specific to other arches.
+        CARCH=$arch
+        for f in $repo/* ; do
+            unset pkgname
+            unset epoch
+            unset pkgver
+            unset pkgrel
+            unset arch
+            . $f/PKGBUILD || continue
+            is_here=false
+            for arc in ${arch[@]} ; do
+                if [ "$arc" = "any" -o "$arc" = "$CARCH" ] ; then
+                    is_here=true
+                    break
+                fi
+            done
+            if [ "$is_here" = "true" ] ; then
+                for name in ${pkgname[@]} ; do
+                    if [ -z "$epoch" ] ; then
+                        echo $name-$pkgver-$pkgrel
+                    else
+                        echo $name-$epoch:$pkgver-$pkgrel
+                    fi
+                done
+            fi
+        done
+    ) | sort ) | sed -rn 's/^[+-][^+-].+$/&/p'
-- 
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