stowhome: add all keyword to match all packages

stow/dot-local/bin/stowhome

@@ -1,11 +1,24 @@
 #!/bin/bash
 
+function get_all_packages() {
+    cd "$HOME/.config/dotfiles"
+    find . -maxdepth 1 -type d -not -name ".git" -not -name "."
+}
+
+stow_cmd="stow --dir '$HOME/.config/dotfiles' --target '$HOME' --dotfiles"
+
 if [ "$*" == "" ]
 then
     echo "you must supply at least one package"
     echo
-    echo "packages:"
-    cd "$HOME/.config/dotfiles" && find . -maxdepth 1 -type d -not -name ".git" -not -name "." | sed -e 's|^.\/|  - |'
+    echo "available packages:"
+    get_all_packages | sed -e 's|^.\/|  - |'
 else
-    stow --dir "$HOME/.config/dotfiles" --target "$HOME" --dotfiles $*
+    if [ "$(echo "$*" | grep -E -e '^(.* )?all$')" != "" ]
+    then
+        all_packages=$(get_all_packages | sed -e 's|^.\/||' | tr '\n' ' ')
+        $stow_cmd $(echo "$*" | sed -e "s/all/$all_packages/")
+    else
+        $stow_cmd $*
+    fi
 fi