Merge #4448

4448: Generate configuration for launch.json r=vsrs a=vsrs

This PR adds two new commands: `"rust-analyzer.debug"` and `"rust-analyzer.newDebugConfig"`. The former is a supplement to the existing `"rust-analyzer.run"` command and works the same way: asks for a runnable and starts new debug session. The latter allows adding a new configuration to **launch.json** (or to update an existing one).

If the new option `"rust-analyzer.debug.useLaunchJson"` is set to true then `"rust-analyzer.debug"` and Debug Lens will first look for existing debug configuration in **launch.json**. That is, it has become possible to specify startup arguments, env variables, etc.

`"rust-analyzer.debug.useLaunchJson"` is false by default, but it might be worth making true the default value. Personally I prefer true, but I'm not sure if it is good for all value.

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I think that this PR also solves https://github.com/rust-analyzer/rust-analyzer/issues/3441.
Both methods to update launch.json mentioned in the issue do not work:
1. Menu. It is only possible to add a launch.json configuration template via a debug adapter. And anyway it's only a template and it is impossible to specify arguments from an extension.

2. DebugConfigurationProvider. The exact opposite situation: it is possible to specify all debug session settings, but it is impossible to export these settings to launch.json.

Separate `"rust-analyzer.newDebugConfig"` command looks better for me.

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Fixes #4450
Fixes #3441

Co-authored-by: vsrs <[email protected]>
Co-authored-by: vsrs <[email protected]>

1 files changed, 10 insertions, 0 deletions

diff --git a/editors/code/package.json b/editors/code/package.json
index b8a2182f0..4e7e3faf7 100644
--- a/editors/code/package.json
+++ b/editors/code/package.json
@@ -121,6 +121,16 @@
                 "category": "Rust Analyzer"
             },
             {
+                "command": "rust-analyzer.debug",
+                "title": "Debug",
+                "category": "Rust Analyzer"
+            },
+            {
+                "command": "rust-analyzer.newDebugConfig",
+                "title": "Generate launch configuration",
+                "category": "Rust Analyzer"
+            },
+            {
                 "command": "rust-analyzer.analyzerStatus",
                 "title": "Status",
                 "category": "Rust Analyzer"