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| author | Dezhi Wu <wu543065657@163.com> | 2021-09-03 17:07:38 +0800 |
|---|---|---|
| committer | Dezhi Wu <wu543065657@163.com> | 2021-09-03 17:07:38 +0800 |
| commit | b8ef2acadb0fd62fbd8ef71ed0f20133c552b15b (patch) | |
| tree | 3e6fc00f0cd48f659c10746fbba05867498b1b1c /docs/dev/README.md | |
| parent | 796bfccac4215fc753f805cc61bb87a64a06b5f6 (diff) | |
| download | rust-b8ef2acadb0fd62fbd8ef71ed0f20133c552b15b.tar.gz rust-b8ef2acadb0fd62fbd8ef71ed0f20133c552b15b.zip | |
docs(logging): use `tracing` for logging
Diffstat (limited to 'docs/dev/README.md')
| -rw-r--r-- | docs/dev/README.md | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/docs/dev/README.md b/docs/dev/README.md index a394b85010c..63a693e784c 100644 --- a/docs/dev/README.md +++ b/docs/dev/README.md @@ -42,7 +42,7 @@ https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer * [S-actionable](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AS-actionable) and [S-unactionable](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3AS-unactionable) specify if there are concrete steps to resolve or advance an issue. Roughly, actionable issues need only work to be fixed, - while unactionable ones are blocked either on user feedback (providing a reproducible example), or on larger architectural + while unactionable ones are blocked either on user feedback (providing a reproducible example), or on larger architectural work or decisions. This classification is descriptive, not prescriptive, and might be wrong: Any unactionable issue might have a simple fix that we missed. Each triaged issue should have one of these labels. * [fun](https://github.com/rust-analyzer/rust-analyzer/issues?q=is%3Aopen+is%3Aissue+label%3Afun) @@ -129,9 +129,10 @@ npm run lint Logging is done by both rust-analyzer and VS Code, so it might be tricky to figure out where logs go. -Inside rust-analyzer, we use the standard `log` crate for logging, and `env_logger` for logging frontend. +Inside rust-analyzer, we use the [`tracing`](https://docs.rs/tracing/) crate for logging, +and [`tracing-subscriber`](https://docs.rs/tracing-subscriber) for logging frontend. By default, log goes to stderr, but the stderr itself is processed by VS Code. -`--log-file <PATH>` CLI argument allows logging to file. +`--log-file <PATH>` CLI argument allows logging to file. Setting the `RA_LOG_FILE=<PATH>` environment variable will also log to file, it will also override `--log-file`. To see stderr in the running VS Code instance, go to the "Output" tab of the panel and select `rust-analyzer`. |