chore(cli): remove the regex feature from tracing_subscriber (#3412)

Cargo.lock

@@ -694,8 +694,8 @@ dependencies = [
  "aho-corasick",
  "bstr",
  "log",
- "regex-automata 0.4.6",
- "regex-syntax 0.8.3",
+ "regex-automata",
+ "regex-syntax",
 ]
 
 [[package]]
@@ -807,7 +807,7 @@ dependencies = [
  "globset",
  "log",
  "memchr",
- "regex-automata 0.4.6",
+ "regex-automata",
  "same-file",
  "walkdir",
  "winapi-util",
@@ -989,15 +989,6 @@ dependencies = [
  "url",
 ]
 
-[[package]]
-name = "matchers"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8263075bb86c5a1b1427b5ae862e8889656f126e9f77c484496e8b47cf5c5558"
-dependencies = [
- "regex-automata 0.1.10",
-]
-
 [[package]]
 name = "memchr"
 version = "2.7.2"
@@ -2013,17 +2004,8 @@ checksum = "c117dbdfde9c8308975b6a18d71f3f385c89461f7b3fb054288ecf2a2058ba4c"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-automata 0.4.6",
- "regex-syntax 0.8.3",
-]
-
-[[package]]
-name = "regex-automata"
-version = "0.1.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
-dependencies = [
- "regex-syntax 0.6.29",
+ "regex-automata",
+ "regex-syntax",
 ]
 
 [[package]]
@@ -2034,15 +2016,9 @@ checksum = "86b83b8b9847f9bf95ef68afb0b8e6cdb80f498442f5179a29fad448fcc1eaea"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-syntax 0.8.3",
+ "regex-syntax",
 ]
 
-[[package]]
-name = "regex-syntax"
-version = "0.6.29"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
-
 [[package]]
 name = "regex-syntax"
 version = "0.8.3"
@@ -2708,14 +2684,10 @@ version = "0.3.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ad0f048c97dbd9faa9b7df56362b8ebcaa52adb06b498c050d2f4e32f90a7a8b"
 dependencies = [
- "matchers",
  "nu-ansi-term",
- "once_cell",
- "regex",
  "sharded-slab",
  "smallvec",
  "thread_local",
- "tracing",
  "tracing-core",
  "tracing-log",
 ]

crates/oxc_cli/Cargo.toml

@@ -53,7 +53,7 @@ miette             = { workspace = true }
 tempfile           = { workspace = true }
 rayon              = { workspace = true }
 bpaf               = { workspace = true, features = ["autocomplete", "bright-color", "derive"] }
-tracing-subscriber = { workspace = true, features = ["env-filter"] }
+tracing-subscriber = { workspace = true, features = [] } # Omit the `regex` feature
 
 [features]
 default   = []

crates/oxc_cli/src/lint/main.rs

@@ -26,7 +26,21 @@ fn init_miette() {
     miette::set_hook(Box::new(|_| Box::new(miette::MietteHandlerOpts::new().build()))).unwrap();
 }
 
+/// To debug `oxc_resolver`:
+/// `OXC_LOG=oxc_resolver oxlint --import-plugin`
 fn init_tracing() {
-    use tracing_subscriber::{fmt, prelude::*, registry, EnvFilter};
-    registry().with(fmt::layer()).with(EnvFilter::from_env("OXC_LOG")).init();
+    use tracing_subscriber::{filter::Targets, prelude::*};
+
+    // Usage without the `regex` feature.
+    // <https://github.com/tokio-rs/tracing/issues/1436#issuecomment-918528013>
+    tracing_subscriber::registry()
+        .with(std::env::var("OXC_LOG").map_or_else(
+            |_| Targets::new(),
+            |env_var| {
+                use std::str::FromStr;
+                Targets::from_str(&env_var).unwrap()
+            },
+        ))
+        .with(tracing_subscriber::fmt::layer())
+        .init();
 }