kiss: Support relative input to the install action.

This adds support for relative paths when passing tarballs to kiss
directly and removes a prevents a misleading and confusing error
message from appearing (a false 'file not found').

kiss

@@ -361,14 +361,16 @@ pkg_order() {
     order=; redro=; deps=
 
     for pkg do case $pkg in
-        *.tar.*) deps="$deps $pkg "  ;;
-        *)       pkg_depends "$pkg" raw
+        /*.tar.*) deps="$deps $pkg " ;;
+        *.tar.*)  deps="$deps $ppwd/$pkg " ;;
+        *)        pkg_depends "$pkg" raw
     esac done
 
     # Filter the list, only keeping explicit packages. The purpose of these
     # two loops is to order the argument list based on dependence.
     for pkg in $deps; do
-        contains "$*" "$pkg" && order="$order $pkg " redro=" $pkg $redro"
+        contains "$*" "$pkg" || contains "$*" "${pkg##"$ppwd/"}" &&
+            order="$order $pkg " redro=" $pkg $redro"
     done
 
     deps=
@@ -1064,7 +1066,7 @@ pkg_install() {
 
     # Install can also take the full path to a tarball. We don't need to check
     # the repository if this is the case.
-    if [ -f "$1" ] && [ -z "${1%%*.tar.*}" ] && [ -z "${1##*/*}" ]; then
+    if [ -f "$1" ] && [ -z "${1%%*.tar.*}" ]; then
         tar_file=$1 pkg_name=${1##*/} pkg_name=${pkg_name%#*}
 
     elif pkg_cache "$1" 2>/dev/null; then
@@ -1487,6 +1489,11 @@ main() {
     # Check this once so as to not slow down printing.
     [ "$KISS_COLOR" = 0 ] || lcol='\033[1;33m' lcol2='\033[1;36m' lclr='\033[m'
 
+    # Store the original working directory to ensure that relative paths
+    # passed by the user on the command-line properly resolve to locations
+    # in the filesystem.
+    ppwd=$PWD
+
     # The PID of the current shell process is used to isolate directories
     # to each specific KISS instance. This allows multiple package manager
     # instances to be run at once. Store the value in another variable so