completion support for helpers

download-and-install

@@ -60,8 +60,13 @@ for file in                            \
     lib/core/completion                \
     helper/path/script                 \
     helper/path/meta                   \
+    helper/path/completion             \
     helper/history/script              \
-    helper/history/meta
+    helper/history/meta                \
+    helper/history/completion          \
+    helper/perlbrew/script             \
+    helper/perlbrew/meta               \
+    helper/perlbrew/completion
 do
     download_file "$file"
 done

helper/history/completion

@@ -0,0 +1,8 @@
+# $@ contains the command line after "smartcd helper run history"
+# $SMARTCD_COMP_CWORD contains the numbered argument which is currently being completed
+# Set words="" to what you want to suggest
+
+case $SMARTCD_COMP_CWORD in
+    1) words="localize also-read";;
+    *) ;; # Path completion is the default
+esac

helper/path/completion

@@ -0,0 +1,8 @@
+# $@ contains the command line after "smartcd helper run path"
+# $SMARTCD_COMP_CWORD contains the numbered argument which is currently being completed
+# Set words="" to what you want to suggest
+
+case $SMARTCD_COMP_CWORD in
+    1) words="append prepend";;
+    *) ;; # Path completion is the default
+esac

helper/perlbrew/completion

@@ -0,0 +1,8 @@
+# $@ contains the command line after "smartcd helper run perlbrew"
+# $SMARTCD_COMP_CWORD contains the numbered argument which is currently being completed
+# Set words="" to what you want to suggest
+
+case $SMARTCD_COMP_CWORD in
+    1) words="init";;
+    *) ;; # Path completion is the default
+esac

lib/core/completion

@@ -14,6 +14,7 @@ function _smartcd_completion() {
 
     local cur="${COMP_WORDS[COMP_CWORD]}"
     local prev="${COMP_WORDS[COMP_CWORD-1]}"
+    local base=$(_smartcd_base)
 
     local prev_ifs="$IFS"
     IFS=$' \t\n'
@@ -28,18 +29,28 @@ function _smartcd_completion() {
             edit|show|filename) words="enter leave";;
                         helper) words="run";;
         esac
-    elif [[ $COMP_CWORD == 3 && "${COMP_WORDS[COMP_CWORD-2]}" == "template" ]]; then
-        case $prev in
-            edit|show|run|install|delete) words="$(smartcd template list)";;
-        esac
-    elif [[ $COMP_CWORD == 3 && "${COMP_WORDS[COMP_CWORD-2]}" == "helper" ]]; then
-        case $prev in
-            run) local _old_ifs="$IFS"
-                 IFS=$'\n'
-                 words="$(command ls $(_smartcd_base)/helper)"
-                 IFS="$_old_ifs"
-                 ;;
+    elif [[ $COMP_CWORD == 3 ]]; then
+        case "${COMP_WORDS[COMP_CWORD-2]}" in
+            template) case $prev in
+                            edit|show|run|install|delete) words="$(smartcd template list)";;
+                      esac
+                      ;;
+              helper) case $prev in
+                            run) local _old_ifs="$IFS"
+                                 IFS=$'\n'
+                                 words="$(command ls $base/helper)"
+                                 IFS="$_old_ifs"
+                                 ;;
+                      esac
+                      ;;
         esac
+    elif (( $COMP_CWORD >= 4 )) && [[ ${COMP_WORDS[1]} == "helper" && ${COMP_WORDS[2]} == "run" ]]; then
+        local helper="${COMP_WORDS[3]}"
+        if [[ -f "$base/helper/$helper/completion" ]]; then
+            # Pass unparsed tokens as arguments
+            local SMARTCD_COMP_CWORD=$(( $COMP_CWORD - 3))
+            source "$base/helper/$helper/completion" "${COMP_WORDS[@]:4}"
+        fi
     fi
 
     COMPREPLY=( $(compgen -W "$words" -- "$cur") )