Moved completion file to its own zsh subdirectory.

Signed-off-by: Paul Beckingham <paul@beckingham.net>

completion/zsh/_task

@@ -0,0 +1,34 @@
+#compdef task
+# zsh completion for task
+# P.C. Shyamshankar
+
+typeset -g _task_cmds
+_task_cmds=($(task rubbish-command | sed -n -e 's/^\s\+task \(\w\+\) .*/\1/p' | grep -v ID))
+
+# As of task 1.7.0, 
+# _task_cmds=(add append annotate completed edit duplicate delete undelete info start stop done undo projects tags summary timesheet history ghistory next calendar active overdue stats import export color version help list long ls newest oldest)
+
+_task() {
+    _arguments -s -S \
+        "*::task command:_task_commands"
+    return 0
+}
+
+
+(( $+functions[_task_commands] )) ||
+_task_commands() {
+    local cmd ret=1
+    if (( CURRENT == 1 )); then
+        _describe -t commands 'task command' _task_cmds
+    else
+        local curcontext="${curcontext}"
+        cmd="${_task_cmds[(r)$words[1]:*]%%:*}"
+        if (( $#cmd )); then
+            curcontext="${curcontext%:*:*}:task-${cmd}"
+            _call_function ret _task_${cmd} || _message "No command remaining."
+        else
+            _message "Unknown subcommand ${cmd}"
+        fi
+        return ret
+    fi
+}