mirror of https://github.com/rust-lang/cargo
feat(cli): Log to chrome trace
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@ -342,6 +342,7 @@ dependencies = [
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"toml",
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"toml_edit",
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"tracing",
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"tracing-chrome",
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"tracing-subscriber",
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"unicase",
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"unicode-width",
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@ -3450,6 +3451,17 @@ dependencies = [
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"syn 2.0.46",
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]
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[[package]]
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name = "tracing-chrome"
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version = "0.7.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "496b3cd5447f7ff527bbbf19b071ad542a000adf297d4127078b4dfdb931f41a"
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dependencies = [
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"serde_json",
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"tracing-core",
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"tracing-subscriber",
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]
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[[package]]
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name = "tracing-core"
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version = "0.1.32"
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@ -99,6 +99,7 @@ time = { version = "0.3", features = ["parsing", "formatting", "serde"] }
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toml = "0.8.10"
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toml_edit = { version = "0.22.6", features = ["serde"] }
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tracing = "0.1.40" # be compatible with rustc_log: https://github.com/rust-lang/rust/blob/e51e98dde6a/compiler/rustc_log/Cargo.toml#L9
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tracing-chrome = "0.7.1"
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tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
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unicase = "2.7.0"
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unicode-width = "0.1.11"
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@ -198,6 +199,7 @@ time.workspace = true
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toml.workspace = true
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toml_edit.workspace = true
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tracing.workspace = true
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tracing-chrome.workspace = true
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tracing-subscriber.workspace = true
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unicase.workspace = true
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unicode-width.workspace = true
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@ -18,7 +18,7 @@ mod commands;
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use crate::command_prelude::*;
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fn main() {
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setup_logger();
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let _guard = setup_logger();
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let mut gctx = match GlobalContext::default() {
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Ok(gctx) => gctx,
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@ -41,16 +41,43 @@ fn main() {
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}
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}
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fn setup_logger() {
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let env = tracing_subscriber::EnvFilter::from_env("CARGO_LOG");
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fn setup_logger() -> Option<tracing_chrome::FlushGuard> {
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#![allow(clippy::disallowed_methods)]
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tracing_subscriber::fmt()
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use tracing_subscriber::prelude::*;
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let env = tracing_subscriber::EnvFilter::from_env("CARGO_LOG");
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let fmt_layer = tracing_subscriber::fmt::layer()
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.with_timer(tracing_subscriber::fmt::time::Uptime::default())
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.with_ansi(std::io::IsTerminal::is_terminal(&std::io::stderr()))
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.with_writer(std::io::stderr)
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.with_env_filter(env)
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.init();
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.with_filter(env);
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let (profile_layer, profile_guard) =
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if env_to_bool(std::env::var_os("__CARGO_LOG_PROFILE").as_deref()) {
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let capture_args =
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env_to_bool(std::env::var_os("__CARGO_LOG_PROFILE_CAPTURE_ARGS").as_deref());
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let (layer, guard) = tracing_chrome::ChromeLayerBuilder::new()
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.include_args(capture_args)
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.build();
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(Some(layer), Some(guard))
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} else {
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(None, None)
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};
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let registry = tracing_subscriber::registry()
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.with(fmt_layer)
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.with(profile_layer);
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registry.init();
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tracing::trace!(start = humantime::format_rfc3339(std::time::SystemTime::now()).to_string());
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profile_guard
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}
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fn env_to_bool(os: Option<&OsStr>) -> bool {
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match os.and_then(|os| os.to_str()) {
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Some("1") | Some("true") => true,
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_ => false,
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}
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}
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/// Table for defining the aliases which come builtin in `Cargo`.
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