prefetch-npm-deps: add env_logger

pkgs/build-support/node/fetch-npm-deps/Cargo.lock

@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aho-corasick"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.71"
@@ -187,6 +196,19 @@ version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
 
+[[package]]
+name = "env_logger"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85cdab6a89accf66733ad5a1693a4dcced6aeff64602b634530dd73c1f3ee9f0"
+dependencies = [
+ "humantime",
+ "is-terminal",
+ "log",
+ "regex",
+ "termcolor",
+]
+
 [[package]]
 name = "errno"
 version = "0.3.1"
@@ -292,6 +314,12 @@ dependencies = [
  "itoa",
 ]
 
+[[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
 [[package]]
 name = "idna"
 version = "0.4.0"
@@ -322,6 +350,18 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "is-terminal"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
+dependencies = [
+ "hermit-abi",
+ "io-lifetimes",
+ "rustix",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "isahc"
 version = "1.7.2"
@@ -499,6 +539,7 @@ dependencies = [
  "anyhow",
  "base64",
  "digest",
+ "env_logger",
  "isahc",
  "rayon",
  "serde",
@@ -559,6 +600,23 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "regex"
+version = "1.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78"
+
 [[package]]
 name = "rustix"
 version = "0.37.20"
@@ -711,6 +769,15 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "termcolor"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
+dependencies = [
+ "winapi-util",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"

pkgs/build-support/node/fetch-npm-deps/Cargo.toml

@@ -9,6 +9,7 @@ edition = "2021"
 anyhow = "1.0.71"
 base64 = "0.21.2"
 digest = "0.10.7"
+env_logger = "0.10.0"
 isahc = { version = "1.7.2", default_features = false }
 rayon = "1.7.0"
 serde = { version = "1.0.164", features = ["derive"] }

pkgs/build-support/node/fetch-npm-deps/src/main.rs

@@ -173,6 +173,8 @@ fn map_cache() -> anyhow::Result<HashMap<Url, String>> {
 }
 
 fn main() -> anyhow::Result<()> {
+    env_logger::init();
+
     let args = env::args().collect::<Vec<_>>();
 
     if args.len() < 2 {