fix(completions): zsh and powershell completions (#1809)

Author: vmaerten

completion/zsh/_task

@@ -1,6 +1,5 @@
 #compdef task
-
-local context state state_descr line
+compdef _task task
 typeset -A opt_args
 
 _GO_TASK_COMPLETION_LIST_OPTION="${GO_TASK_COMPLETION_LIST_OPTION:---list-all}"
@@ -39,26 +38,33 @@ function __task_list() {
     _describe 'Task to run' scripts
 }
 
-_arguments \
-    '(-C --concurrency)'{-C,--concurrency}'[limit number of concurrent tasks]: ' \
-    '(-p --parallel)'{-p,--parallel}'[run command-line tasks in parallel]' \
-    '(-f --force)'{-f,--force}'[run even if task is up-to-date]' \
-    '(-c --color)'{-c,--color}'[colored output]' \
-    '(-d --dir)'{-d,--dir}'[dir to run in]:execution dir:_dirs' \
-    '(--dry)--dry[dry-run mode, compile and print tasks only]' \
-    '(-o --output)'{-o,--output}'[set output style]:style:(interleaved group prefixed)' \
-    '(--output-group-begin)--output-group-begin[message template before grouped output]:template text: ' \
-    '(--output-group-end)--output-group-end[message template after grouped output]:template text: ' \
-    '(-s --silent)'{-s,--silent}'[disable echoing]' \
-    '(--status)--status[exit non-zero if supplied tasks not up-to-date]' \
-    '(--summary)--summary[show summary\: field from tasks instead of running them]' \
-    '(-t --taskfile)'{-t,--taskfile}'[specify a different taskfile]:taskfile:_files' \
-    '(-v --verbose)'{-v,--verbose}'[verbose mode]' \
-    '(-w --watch)'{-w,--watch}'[watch-mode for given tasks, re-run when inputs change]' \
-    + '(operation)' \
-        {-l,--list}'[list describable tasks]' \
-        {-a,--list-all}'[list all tasks]' \
-        {-i,--init}'[create new Taskfile.yml]' \
-        '(-*)'{-h,--help}'[show help]' \
-        '(-*)--version[show version and exit]' \
-        '*: :__task_list'
+_task() {
+    _arguments \
+        '(-C --concurrency)'{-C,--concurrency}'[limit number of concurrent tasks]: ' \
+        '(-p --parallel)'{-p,--parallel}'[run command-line tasks in parallel]' \
+        '(-f --force)'{-f,--force}'[run even if task is up-to-date]' \
+        '(-c --color)'{-c,--color}'[colored output]' \
+        '(-d --dir)'{-d,--dir}'[dir to run in]:execution dir:_dirs' \
+        '(--dry)--dry[dry-run mode, compile and print tasks only]' \
+        '(-o --output)'{-o,--output}'[set output style]:style:(interleaved group prefixed)' \
+        '(--output-group-begin)--output-group-begin[message template before grouped output]:template text: ' \
+        '(--output-group-end)--output-group-end[message template after grouped output]:template text: ' \
+        '(-s --silent)'{-s,--silent}'[disable echoing]' \
+        '(--status)--status[exit non-zero if supplied tasks not up-to-date]' \
+        '(--summary)--summary[show summary\: field from tasks instead of running them]' \
+        '(-t --taskfile)'{-t,--taskfile}'[specify a different taskfile]:taskfile:_files' \
+        '(-v --verbose)'{-v,--verbose}'[verbose mode]' \
+        '(-w --watch)'{-w,--watch}'[watch-mode for given tasks, re-run when inputs change]' \
+        + '(operation)' \
+            {-l,--list}'[list describable tasks]' \
+            {-a,--list-all}'[list all tasks]' \
+            {-i,--init}'[create new Taskfile.yml]' \
+            '(-*)'{-h,--help}'[show help]' \
+            '(-*)--version[show version and exit]' \
+            '*: :__task_list'
+}
+
+# don't run the completion function when being source-ed or eval-ed
+if [ "$funcstack[1]" = "_task" ]; then
+    _task "$@"
+fi

website/docs/installation.mdx

@@ -287,7 +287,7 @@ task --completion fish | source
 
 <TabItem value="4">
 ```powershell title="$PROFILE\Microsoft.PowerShell_profile.ps1"
-Invoke-Expression (&task --completion powershell)
+Invoke-Expression  (&task --completion powershell | Out-String)
 ```
 </TabItem></Tabs>