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rustc_log: provide a way to init logging based on the values, not names, of the env vars

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This commit is contained in:
Ralf Jung 2023-11-11 13:34:20 +01:00
parent 1db4b12494
commit 581a317bbb
4 changed files with 43 additions and 18 deletions
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10
compiler/rustc_driver_impl/src/lib.rs
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@ -1524,14 +1524,14 @@ fn report_ice(
/// This allows tools to enable rust logging without having to magically match rustc's
/// tracing crate version.
pub fn init_rustc_env_logger(handler: &EarlyErrorHandler) {
init_env_logger(handler, "RUSTC_LOG");
init_logger(handler, rustc_log::LoggerConfig::from_env("RUSTC_LOG"));
}
/// This allows tools to enable rust logging without having to magically match rustc's
/// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to choose an env var
/// other than `RUSTC_LOG`.
pub fn init_env_logger(handler: &EarlyErrorHandler, env: &str) {
if let Err(error) = rustc_log::init_env_logger(env) {
/// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to choose
/// the values directly rather than having to set an environment variable.
pub fn init_logger(handler: &EarlyErrorHandler, cfg: rustc_log::LoggerConfig) {
if let Err(error) = rustc_log::init_logger(cfg) {
handler.early_error(error.to_string());
}
}