4 files changed, 12 insertions, 9 deletions
diff --git a/contrib/kiss-owns b/contrib/kiss-owns
index 1ab7c55..79326bf 100755
--- a/contrib/kiss-owns
+++ b/contrib/kiss-owns
@@ -2,6 +2,8 @@
 #
 # kiss-owns - Check which package owns a file.
 
+[ "$1" ] || { printf '%s\n' "usage: kiss-owns <file>" ; exit 1 ;}
+
 # Strip 'KISS_ROOT' from the file path if passed and
 # follow symlinks.
 file=$(readlink -f "$KISS_ROOT/${1##$KISS_ROOT}")
diff --git a/contrib/kiss-repodepends b/contrib/kiss-repodepends
index fded3b2..c5bb399 100755
--- a/contrib/kiss-repodepends
+++ b/contrib/kiss-repodepends
@@ -1,5 +1,8 @@
-#!/bin/sh
+#!/bin/sh -e
 #
 # kiss-repodepends
 
+[ "$1" ] || { printf '%s\n' "usage: kiss-repodepends <pkg>" ; exit 1 ;}
+kiss s "$1" >/dev/null
+
 cat "$(kiss s "$1" | sed 1q)/depends" 2>/dev/null
diff --git a/contrib/kiss-revdepends b/contrib/kiss-revdepends
index 5a181e5..7855b4a 100755
--- a/contrib/kiss-revdepends
+++ b/contrib/kiss-revdepends
@@ -2,6 +2,9 @@
 #
 # kiss-revdepends - Display packages which depend on package.
 
+[ "$1" ] || { printf '%s\n' "usage: kiss-revdepends <pkg>" ; exit 1 ;}
+kiss s "$1" >/dev/null
+
 # 'cd' to the database directory as a simple way of
 # stripping the path and performing a 'basename'.
 cd "$KISS_ROOT/var/db/kiss/installed"
diff --git a/contrib/kiss-size b/contrib/kiss-size
index 72365a4..1c39bee 100755
--- a/contrib/kiss-size
+++ b/contrib/kiss-size
@@ -2,17 +2,12 @@
 #
 # kiss-size - Show the size on disk for a package.
 
-db_dir=$KISS_ROOT/var/db/kiss/installed/${1-null}
-
-# Check if package is installed and exit if it is not.
-[ -d "$db_dir" ] || {
-    printf '%s\n' "error: '$1' not installed." >&2
-    exit 1
-}
+[ "$1" ] || { printf '%s\n' "usage: kiss-size <pkg>" ; exit 1 ;}
+kiss s "$1" >/dev/null
 
 # Filter directories from manifest and leave only files.
 # Directories in the manifest end in a trailing '/'.
-files=$(sed 's|.*/$||' "$db_dir/manifest")
+files=$(sed 's|.*/$||' "$KISS_ROOT/var/db/kiss/installed/$1/manifest")
 
 # Send the file list to 'du'.
 # This unquoted variable is safe as word splitting is intended