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authorXavier Chantry <shiningxc@gmail.com>2009-02-17 23:40:11 +0100
committerDan McGee <dan@archlinux.org>2009-02-18 19:20:10 -0600
commitdce7aa85696680035a512dde7daf89f9506f8523 (patch)
treeed03dd3e7c922b2ef5da8fa745068e4d4bc7343f
parent14c1a4423e62d9026e8025b79e6902c06ea4ae47 (diff)
contrib/pacdiff : rework and cleanup
I initially only wanted to add a -l/--locate option to use locate instead of find, which should have been easy. Then I thought I would try to support filename with whitespace while I was at it, and this was a bit more complex. The safest ways seem to be the following ones : http://mywiki.wooledge.org/BashFAQ/020 Then I received a lot of suggestions on #bash about how to improve the script, which I tried to address. Signed-off-by: Xavier Chantry <shiningxc@gmail.com> [Dan: fix grouping of find arguments] Signed-off-by: Dan McGee <dan@archlinux.org>
-rwxr-xr-xcontrib/pacdiff85
1 files changed, 58 insertions, 27 deletions
diff --git a/contrib/pacdiff b/contrib/pacdiff
index 64936491..5138d91c 100755
--- a/contrib/pacdiff
+++ b/contrib/pacdiff
@@ -1,5 +1,5 @@
-#!/bin/sh
-# pacdiff : a simple pacnew/pacorig/pacsave updater for /etc/
+#!/bin/bash
+# pacdiff : a simple pacnew/pacorig/pacsave updater
#
# Copyright (c) 2007 Aaron Griffin <aaronmgriffin@gmail.com>
#
@@ -17,29 +17,60 @@
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
-# Original http://phraktured.net/config/bin/pacdiff
-
diffprog=${DIFFPROG:-vimdiff}
-for x in $(find /etc/ -name "*.pacnew" -o -name "*.pacorig" -o -name "*.pacsave")
-do
- echo "File: ${x%.pac*}"
- chk="$(cmp $x ${x%.pac*})"
- if [ -z "${chk}" ]; then
- echo " Files are identical, removing..."
- rm $x
- else
- echo -n " File differences found. (V)iew, (S)kip, (R)emove: [v/s/r] "
- read c
- c="$(echo $c| tr A-Z a-z)" #tolower
- if [ "$c" = "r" ]; then
- rm $x
- elif [ "$c" = "s" ]; then
- continue
- else
- [ "$c" = "n" -o "$c" = "N" ] || $diffprog $x ${x%.pac*}
- echo -n " Remove file? [Y/n] "
- read c
- [ "$c" = "n" -o "$c" = "N" ] || rm $x
- fi
- fi
-done
+locate=0
+
+usage() {
+ echo "pacdiff : a simple pacnew/pacorig/pacsave updater"
+ echo "Usage : pacdiff [-l]"
+ echo "The -l/--locate flag makes pacdiff use locate rather than find"
+}
+
+cmd() {
+ if [ $locate -eq 1 ]; then
+ locate -0 -e -b \*.pacnew \*.pacorig \*.pacsave
+ else
+ find /etc/ \( -name \*.pacnew -o -name \*.pacorig -o -name \*.pacsave \) -print0
+ fi
+}
+
+if [ $# -gt 0 ]; then
+ case $1 in
+ -l|--locate)
+ locate=1;;
+ *)
+ usage; exit 0;;
+ esac
+fi
+
+# see http://mywiki.wooledge.org/BashFAQ/020
+while IFS= read -u 3 -r -d '' pacfile; do
+ file="${pacfile%.pac*}"
+ echo "File: $file"
+ if [ ! -f "$file" ]; then
+ echo " $file does not exist"
+ rm -i "$pacfile"
+ continue
+ fi
+ check="$(cmp "$pacfile" "$file")"
+ if [ -z "${check}" ]; then
+ echo " Files are identical, removing..."
+ rm "$pacfile"
+ else
+ echo -n " File differences found. (V)iew, (S)kip, (R)emove: [v/s/r] "
+ while read c; do
+ case $c in
+ r|R) rm "$pacfile"; break ;;
+ v|V)
+ $diffprog "$pacfile" "$file"
+ rm -i "$pacfile"; break ;;
+ s|S) break ;;
+ *) echo -n " Invalid answer. Try again: [v/s/r] "; continue ;;
+ esac
+ done
+ fi
+done 3< <(cmd)
+
+exit 0
+
+# vim: set ts=2 sw=2 noet: