Bug 1429511 - Move Rust port of mozrunner to central. r=ahal

This moves the Rust crate mozrunner into central from GitHub.
The old repository will be graveyarded:

	https://github.com/jgraham/rust_mozrunner

The git history is not considered important, hence this does not
overlay that onto central like we did for testing/geckodriver and
testing/webdriver.

MozReview-Commit-ID: J4ZYdow2Lkw

.gitignore

@@ -104,6 +104,10 @@ mobile/android/gradle/.gradle
 embedding/ios/GeckoEmbed/GeckoEmbed.xcodeproj/project.xcworkspace/xcuserdata
 embedding/ios/GeckoEmbed/GeckoEmbed.xcodeproj/xcuserdata
 
+# Rust port of mozbase are libraries
+testing/mozbase/rust/*/target
+testing/mozbase/rust/*/Cargo.lock
+
 # Ignore mozharness execution files
 testing/mozharness/.tox/
 testing/mozharness/build/

testing/mozbase/rust/mozrunner/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "mozrunner"
+version = "0.5.0"
+authors = ["Mozilla Tools and Automation <auto-tools@mozilla.com>"]
+description = "Library for starting Firefox binaries."
+repository = "https://github.com/jgraham/rust_mozrunner"
+license = "MPL-2.0"
+
+[dependencies]
+log = "0.3"
+mozprofile = "0.3"
+
+[target.'cfg(target_os = "windows")'.dependencies]
+winreg = "0.3.5"
+
+[[bin]]
+name = "firefox-default-path"

testing/mozbase/rust/mozrunner/moz.build

@@ -0,0 +1,6 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+with Files("**"):
+    BUG_COMPONENT = ("Testing", "Mozbase Rust")

testing/mozbase/rust/mozrunner/src/bin/firefox-default-path.rs

@@ -0,0 +1,17 @@
+extern crate mozrunner;
+
+use mozrunner::runner::platform;
+use std::io::Write;
+
+fn main() {
+    let (path, code) = platform::firefox_default_path()
+        .map(|x| (x.to_string_lossy().into_owned(), 0))
+        .unwrap_or(("Firefox binary not found".to_owned(), 1));
+
+    let mut writer: Box<Write> = match code {
+        0 => Box::new(std::io::stdout()),
+        _ => Box::new(std::io::stderr())
+    };
+    writeln!(&mut writer, "{}", &*path).unwrap();
+    std::process::exit(code);
+}

testing/mozbase/rust/mozrunner/src/lib.rs

@@ -0,0 +1,8 @@
+#[macro_use] extern crate log;
+extern crate mozprofile;
+#[cfg(target_os = "windows")]
+extern crate winreg;
+
+pub mod runner;
+
+pub use runner::platform::firefox_default_path;