Add :pipe-to typable command that ignores shell output (helix-editor#4931)

Author: alxshine

book/src/generated/typable-cmd.md

@@ -71,4 +71,5 @@
 | `:insert-output` | Run shell command, inserting output before each selection. |
 | `:append-output` | Run shell command, appending output after each selection. |
 | `:pipe` | Pipe each selection to the shell command. |
+| `:pipe-to` | Pipe each selection to the shell command, ignoring output. |
 | `:run-shell-command`, `:sh` | Run a shell command |

helix-term/src/commands/typed.rs

@@ -1741,13 +1741,30 @@ fn insert_output(
     Ok(())
 }
 
+fn pipe_to(
+    cx: &mut compositor::Context,
+    args: &[Cow<str>],
+    event: PromptEvent,
+) -> anyhow::Result<()> {
+    pipe_impl(cx, args, event, &ShellBehavior::Ignore)
+}
+
 fn pipe(cx: &mut compositor::Context, args: &[Cow<str>], event: PromptEvent) -> anyhow::Result<()> {
+    pipe_impl(cx, args, event, &ShellBehavior::Replace)
+}
+
+fn pipe_impl(
+    cx: &mut compositor::Context,
+    args: &[Cow<str>],
+    event: PromptEvent,
+    behavior: &ShellBehavior,
+) -> anyhow::Result<()> {
     if event != PromptEvent::Validate {
         return Ok(());
     }
 
     ensure!(!args.is_empty(), "Shell command required");
-    shell(cx, &args.join(" "), &ShellBehavior::Replace);
+    shell(cx, &args.join(" "), behavior);
     Ok(())
 }
 
@@ -2292,6 +2309,13 @@ pub const TYPABLE_COMMAND_LIST: &[TypableCommand] = &[
             fun: pipe,
             completer: None,
         },
+        TypableCommand {
+            name: "pipe-to",
+            aliases: &[],
+            doc: "Pipe each selection to the shell command, ignoring output.",
+            fun: pipe_to,
+            completer: None,
+        },
         TypableCommand {
             name: "run-shell-command",
             aliases: &["sh"],