From 11695bd0d7d8efa32066c3adf25007a896661da9 Mon Sep 17 00:00:00 2001
From: Xavier Chantry <shiningxc@gmail.com>
Date: Tue, 17 Jun 2008 00:09:45 +0200
Subject: [PATCH] repo-add cleanup.

* change ln -s to ln -sf in the Makefile to prevent a failure when the link
already exists.
* make test_repo_db_file simpler and more natural, move the complexity out
of it.
* remove one $cmd = repo-remove check that wasn't needed

Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
---
 scripts/Makefile.am    |  2 +-
 scripts/repo-add.sh.in | 28 ++++++++++++++--------------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/scripts/Makefile.am b/scripts/Makefile.am
index 283556e3..7dccff9d 100644
--- a/scripts/Makefile.am
+++ b/scripts/Makefile.am
@@ -58,6 +58,6 @@ pacman-optimize: $(srcdir)/pacman-optimize.sh.in
 rankmirrors: $(srcdir)/rankmirrors.py.in
 repo-add: $(srcdir)/repo-add.sh.in
 repo-remove: $(srcdir)/repo-add.sh.in
-	ln -s repo-add repo-remove
+	ln -sf repo-add repo-remove
 
 # vim:set ts=2 sw=2 noet:
diff --git a/scripts/repo-add.sh.in b/scripts/repo-add.sh.in
index b6772db6..9ab023d6 100644
--- a/scripts/repo-add.sh.in
+++ b/scripts/repo-add.sh.in
@@ -84,17 +84,12 @@ There is NO WARRANTY, to the extent permitted by law.\n")"
 }
 
 # test if a file is a repository DB
-#   arg1 - command name (repo-add, repo-remove)
 test_repo_db_file () {
-	if [ -f "$REPO_DB_FILE" ]; then
-		if bsdtar -tf "$REPO_DB_FILE" | grep -q "/desc"; then
-			return 0 # YES
-		fi
-	elif [ "$1" == "repo-add" ]; then
-		return 0 # YES - No database file is also allowed if we are adding
+	if bsdtar -tf "$REPO_DB_FILE" | grep -q "/desc"; then
+		return 0 # YES
+	else
+		return 1 # NO
 	fi
-
-	return 1 # NO
 }
 
 # write a list entry
@@ -344,12 +339,16 @@ for arg in "$@"; do
 	elif [ -z "$REPO_DB_FILE" ]; then
 		# store absolute path to repo DB
 		REPO_DB_FILE=$($realpath "$arg")
-		if ! test_repo_db_file $cmd; then
-			error "$(gettext "Repository file '%s' is not a proper pacman database.")" "$REPO_DB_FILE"
-			exit 1
-		elif [ -f "$REPO_DB_FILE" ]; then
+		if [ -f "$REPO_DB_FILE" ]; then
+			if ! test_repo_db_file $cmd; then
+				error "$(gettext "Repository file '%s' is not a proper pacman database.")" "$REPO_DB_FILE"
+				exit 1
+			fi
 			msg "$(gettext "Extracting database to a temporary location...")"
 			bsdtar -xf "$REPO_DB_FILE" -C "$gstmpdir"
+		elif [ "$cmd" == "repo-remove" ]; then
+			error "$(gettext "Repository file '%s' was not found.")" "$REPO_DB_FILE"
+			exit 1
 		fi
 	else
 		if [ "$cmd" == "repo-add" ]; then
@@ -394,7 +393,8 @@ if [ $success -eq 1 ]; then
 		esac
 
 		bsdtar -c${TAR_OPT}f "$REPO_DB_FILE" *
-	elif [ "$cmd" == "repo-remove" ]; then
+	else
+		# we should only end up with an empty db after a remove of the last package in the database
 		error "$(gettext "All packages have been removed from the database. Deleting '%s'.")" "$REPO_DB_FILE"
 		rm "$REPO_DB_FILE"
 	fi