Enable standard logging for geckolib.

ports/geckolib/Cargo.lock

@@ -4,6 +4,7 @@ version = "0.0.1"
 dependencies = [
  "app_units 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "cssparser 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "env_logger 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.6.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize_plugin 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -20,6 +21,14 @@ dependencies = [
  "util 0.0.1",
 ]
 
+[[package]]
+name = "aho-corasick"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "app_units"
 version = "0.2.3"
@@ -180,6 +189,15 @@ name = "encoding_index_tests"
 version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "env_logger"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.1.69 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "euclid"
 version = "0.6.6"
@@ -276,6 +294,14 @@ name = "matches"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "memchr"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "num"
 version = "0.1.32"
@@ -411,6 +437,23 @@ dependencies = [
  "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "regex"
+version = "0.1.69"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "aho-corasick 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rustc-serialize"
 version = "0.3.19"
@@ -523,6 +566,23 @@ name = "tenacious"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "thread-id"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "kernel32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "thread_local"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "time"
 version = "0.1.34"
@@ -567,6 +627,11 @@ dependencies = [
  "serde 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "utf8-ranges"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "util"
 version = "0.0.1"

ports/geckolib/Cargo.toml

@@ -27,3 +27,4 @@ log = {version = "0.3.5", features = ["release_max_level_info"]}
 plugins = {path = "../../components/plugins"}
 util = {path = "../../components/util"}
 style = {path = "../../components/style", features = ["gecko"]}
+env_logger = "0.3"

ports/geckolib/glue.rs

@@ -9,6 +9,7 @@ use bindings::{RawGeckoDocument, RawGeckoNode};
 use bindings::{RawServoStyleSet, RawServoStyleSheet, ServoComputedValues, ServoNodeData};
 use bindings::{nsIAtom};
 use data::PerDocumentStyleData;
+use env_logger;
 use euclid::Size2D;
 use gecko_style_structs::SheetParsingMode;
 use properties::GeckoComputedValues;
@@ -63,6 +64,10 @@ pub fn pseudo_element_from_atom(pseudo: *mut nsIAtom,
 
 #[no_mangle]
 pub extern "C" fn Servo_Initialize() -> () {
+    // Enable standard Rust logging.
+    //
+    // See https://doc.rust-lang.org/log/env_logger/index.html for instructions.
+    env_logger::init().unwrap();
 }
 
 #[no_mangle]

ports/geckolib/lib.rs

@@ -15,6 +15,7 @@
 extern crate app_units;
 #[macro_use]
 extern crate cssparser;
+extern crate env_logger;
 extern crate euclid;
 extern crate heapsize;
 #[macro_use]