buck2: allow disabling interactive console

Summary:
Like it says in the title.

Context:

https://fb.workplace.com/groups/buck2eng/permalink/2999998796964267/

Reviewed By: IanChilds

Differential Revision: D39810489

fbshipit-source-id: d122b1a5ccce4c7494d482c9378e40d2db8689cf

buck2_client/src/commands/lsp.rs

@@ -82,6 +82,7 @@ impl StreamingCommand for LspCommand {
         static SIMPLE_CONSOLE: Lazy<CommonConsoleOptions> = Lazy::new(|| CommonConsoleOptions {
             console_type: ConsoleType::Simple,
             ui: vec![],
+            no_interactive_console: true,
         });
         &SIMPLE_CONSOLE
     }

buck2_client/src/common.rs

@@ -382,13 +382,21 @@ pub struct CommonConsoleOptions {
         arg_enum
     )]
     pub ui: Vec<UiOptions>,
+
+    #[clap(
+        long,
+        help = "Disable console interactions",
+        env = "BUCK_NO_INTERACTIVE_CONSOLE"
+    )]
+    pub no_interactive_console: bool,
 }
 
 impl Default for CommonConsoleOptions {
     fn default() -> Self {
         Self {
             console_type: ConsoleType::Auto,
             ui: Vec::new(),
+            no_interactive_console: false,
         }
     }
 }
@@ -398,6 +406,7 @@ impl CommonConsoleOptions {
         static OPTS: CommonConsoleOptions = CommonConsoleOptions {
             console_type: ConsoleType::Auto,
             ui: vec![],
+            no_interactive_console: false,
         };
         &OPTS
     }
@@ -406,6 +415,7 @@ impl CommonConsoleOptions {
         static OPTS: CommonConsoleOptions = CommonConsoleOptions {
             console_type: ConsoleType::Simple,
             ui: vec![],
+            no_interactive_console: false,
         };
         &OPTS
     }
@@ -414,6 +424,7 @@ impl CommonConsoleOptions {
         static OPTS: CommonConsoleOptions = CommonConsoleOptions {
             console_type: ConsoleType::None,
             ui: vec![],
+            no_interactive_console: false,
         };
         &OPTS
     }

buck2_client/src/stdin.rs

@@ -102,8 +102,13 @@ impl Stdin {
 
     pub fn console_interaction_stream(
         &mut self,
-        _opts: &CommonConsoleOptions,
+        opts: &CommonConsoleOptions,
     ) -> Option<ConsoleInteractionStream<'_>> {
+        if opts.no_interactive_console {
+            tracing::debug!("Disabling console interaction: no_interactive_console is set");
+            return None;
+        }
+
         ConsoleInteractionStream::new(self)
     }
 }