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diff rust/rhg/src/main.rs @ 48340:d71b9902e2de

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rhg: Colored output is not supported Fallback if it is requested explicitly. The default is documented as use color "whenever it seems possible". rhg proceeds without color in that case. Differential Revision: https://phab.mercurial-scm.org/D11762
author Simon Sapin <simon.sapin@octobus.net>
date Tue, 09 Nov 2021 19:28:13 +0100
parents a2e278b5e265
children 8960295b9246
line wrap: on
line diff
--- a/rust/rhg/src/main.rs	Tue Nov 09 19:09:57 2021 +0100
+++ b/rust/rhg/src/main.rs	Tue Nov 09 19:28:13 2021 +0100
@@ -28,7 +28,7 @@
     repo: Result<&Repo, &NoRepoInCwdError>,
     config: &Config,
 ) -> Result<(), CommandError> {
-    check_unsupported(config)?;
+    check_unsupported(config, ui)?;
 
     let app = App::new("rhg")
         .global_setting(AppSettings::AllowInvalidUtf8)
@@ -617,7 +617,10 @@
     }
 }
 
-fn check_unsupported(config: &Config) -> Result<(), CommandError> {
+fn check_unsupported(
+    config: &Config,
+    ui: &ui::Ui,
+) -> Result<(), CommandError> {
     check_extensions(config)?;
 
     if std::env::var_os("HG_PENDING").is_some() {
@@ -634,5 +637,11 @@
         Err(CommandError::unsupported("[decode] config"))?
     }
 
+    if let Some(color) = config.get(b"ui", b"color") {
+        if (color == b"always" || color == b"debug") && !ui.plain() {
+            Err(CommandError::unsupported("colored output"))?
+        }
+    }
+
     Ok(())
 }