From 830afa08f95e2026f97b62d22484c27d42c104b1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Sun, 18 Jul 2021 12:47:23 +0200
Subject: Add pkgundo script

---
 Makefile |  2 +-
 conv     |  1 +
 pkgpatch | 18 ++++++++++--------
 pkgundo  | 12 ++++++++++++
 4 files changed, 24 insertions(+), 9 deletions(-)
 create mode 100755 pkgundo

diff --git a/Makefile b/Makefile
index b70a1bd..f58e034 100644
--- a/Makefile
+++ b/Makefile
@@ -1,2 +1,2 @@
 install:
-	install conv pkgdiffs pkgpatch undopatch /usr/local/bin
+	install conv pkgdiffs pkgpatch pkgundo undopatch /usr/local/bin
diff --git a/conv b/conv
index c277760..39781d7 100755
--- a/conv
+++ b/conv
@@ -2,6 +2,7 @@
 
 # conv -- convert git diff -p output to pkgsrc patch
 
+set -f
 IFS='
 '
 
diff --git a/pkgpatch b/pkgpatch
index 8d68c20..17af25c 100755
--- a/pkgpatch
+++ b/pkgpatch
@@ -2,12 +2,14 @@
 
 # pkgpatch -- patch but don't overwrite original files
 
-for orig in *.orig; do
-	mv -i "$orig" "${orig%.orig}".~1~
-done
-
+move()
+{
+	echo "${0##*/}: Renaming *.$1 to *.$2..." 1>&2
+	for orig in *.$1; do
+		mv -i "$orig" "${orig%.$1}".$2
+	done
+}
+
+move orig ~1~
+trap 'move ~1~ orig; trap -' INT QUIT TERM EXIT
 patch -Vt -F3 "$@"
-
-for orig in *.~1~; do
-	mv -i "$orig" "${orig%.~1~}".orig
-done
diff --git a/pkgundo b/pkgundo
new file mode 100755
index 0000000..2513bf1
--- /dev/null
+++ b/pkgundo
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# pkgundo -- restore original files
+
+[ $# -eq 0 ] && { echo "usage: ${0##*/} orig ..." 2>&1; exit 1; }
+
+n=
+for orig in "$@"; do
+	: $((n++))
+	mv "$orig" "${orig%.orig}"
+done
+echo "${0##*/}: Moved $n files." 2>&1
-- 
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