Add invoke completion.

dotfiles/lib/completions/_inv

@@ -0,0 +1,2 @@
+#compdef inv
+compdef inv='invoke'

dotfiles/lib/completions/_invoke

@@ -1,44 +1,43 @@
-#compdef inv invoke
+#compdef invoke
 
+_invoke() {
     typeset -A opt_args
     local context state line
 
-_invoke_subcommand () {
-  if [ -f tasks.py ]; then
-    local cache_policy
-    zstyle -s ":completion:${curcontext}:" cache-policy cache_policy
+    _arguments "*:invoke_command:->command"
 
-    if [[ -z "$cache_policy" ]]; then
-        zstyle ":completion:${curcontext}:" cache-policy _invoke_subcommands_caching_policy
-    fi
+    case $state in
+	(command)
+	    COMMAND_COMPLETIONS=( $(_invoke_commands | tr '\n' ' ') )
+	    for COMPLETION in $COMMAND_COMPLETIONS
+	    do
+		compadd $COMPLETION
+	    done
+	    ;;
+    esac
 
-    if ( [[ ${+_invoke_subcommands} -eq 0 ]] || _cache_invalid invoke_subcommands ) \
-        && ! _retrieve_cache invoke_subcommands; then
-
-        _invoke_subcommands=(${${(f)"$(inv -l | grep "^  [a-zA-Z]" | awk '{print $1}')"}})
-        _store_cache invoke_subcommands _invoke_subcommands
-    fi
-
-    local expl
-    _wanted invoke_subcommands expl 'invoke subcommands' compadd -a _invoke_subcommands
-  fi
+    return 0
 }
 
-_invoke_subcommands_caching_policy() {
-    local -a oldp
-    oldp=( "$1"(Nmm+3) )    # 3min.
-    (( $#oldp ))
+function _invoke_commands() {
+    COMMAND_COMPLETIONS=( $(invoke -l |tr -d ' ' | tail -n+2 | sed '$ d' | tr '\n' ' ') )
+    for COMPLETION in $COMMAND_COMPLETIONS
+    do
+	local comma_separated="$(echo $COMPLETION | tr -d ')\n' | tr '(' ',')"
+	local names="$(_echo_split $comma_separated ',')"
+	for name in $names
+	do
+	    echo $name
+	done
+    done
 }
 
-_arguments -s -S \
-  "--no-dedupe[Disable task deduplication.]" \
-  "(-c --collection)"{-c,--collection}"[Specify collection name to load. May be given >1 time.]" \
-  "(-e --echo)"{-e,--echo}"[Echo executed commands before running.]" \
-  "(-h --help)"{-h,--help}"[Show core or per-task help and exit.]:command:_invoke_subcommand" \
-  "(-H --hide)"{-H,--hide}"[Set default value of run()'s 'hide' kwarg.]:command:_invoke_subcommand" \
-  "(-l --list)"{-l,--list}"[List available tasks.]" \
-  "(-p --pty)"{-p,--pty}"[Use a pty when executing shell commands.]" \
-  "(-r --root)"{-r,--root}"[Change root directory used for finding task modules.]:directory:_directories" \
-  "(-V --version)"{-V,--version}"[Show version and exit.]:" \
-  "(-w --warn-only)"{-w,--warn-only}"[Warn, instead of failing, when shell commands fail.]" \
-  "*::invoke commands:_invoke_subcommand"
+function _echo_split () {
+   local IFS    
+    IFS="$2" read -rA -- arr <<EOF
+$1
+EOF
+    for i in "${arr[@]}"; do
+	echo $i
+    done
+}