1 files changed, 78 insertions, 0 deletions
diff --git a/devtools/client/shared/build/build.js b/devtools/client/shared/build/build.js
new file mode 100644
index 0000000000..7bb00d5145
--- /dev/null
+++ b/devtools/client/shared/build/build.js
@@ -0,0 +1,78 @@
+/* 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/>. */
+/* globals process, __filename, __dirname */
+
+/* Usage:  node build.js [LIST_OF_SOURCE_FILES...] OUTPUT_DIR
+ *    Compiles all source files and places the results of the compilation in
+ * OUTPUT_DIR.
+ */
+
+"use strict";
+
+const Babel = require("./babel");
+const fs = require("fs");
+const _path = require("path");
+
+const defaultPlugins = ["proposal-class-properties"];
+
+function transform(filePath) {
+  // Use the extra plugins only for the debugger
+  const plugins = filePath.includes("devtools/client/debugger")
+    ? require("./build-debugger")(filePath)
+    : defaultPlugins;
+
+  const doc = fs.readFileSync(filePath, "utf8");
+
+  let out;
+  try {
+    out = Babel.transform(doc, { plugins });
+  } catch (err) {
+    throw new Error(`
+========================
+NODE COMPILATION ERROR!
+
+File:   ${filePath}
+Stack:
+
+${err.stack}
+
+========================
+`);
+  }
+
+  return out.code;
+}
+
+// fs.mkdirSync's "recursive" option appears not to work, so I'm writing a
+// simple version of the function myself.
+function mkdirs(filePath) {
+  if (fs.existsSync(filePath)) {
+    return;
+  }
+  mkdirs(_path.dirname(filePath));
+  try {
+    fs.mkdirSync(filePath);
+  } catch (err) {
+    // Ignore any errors resulting from the directory already existing.
+    if (err.code != "EEXIST") {
+      throw err;
+    }
+  }
+}
+
+const deps = [__filename, _path.resolve(__dirname, "babel.js")];
+const outputDir = process.argv[process.argv.length - 1];
+mkdirs(outputDir);
+
+for (let i = 2; i < process.argv.length - 1; i++) {
+  const srcPath = process.argv[i];
+  const code = transform(srcPath);
+  const fullPath = _path.join(outputDir, _path.basename(srcPath));
+  fs.writeFileSync(fullPath, code);
+  deps.push(srcPath);
+}
+
+// Print all dependencies prefixed with 'dep:' in order to help node.py, the script that
+// calls this module, to report back the precise list of all dependencies.
+console.log(deps.map(file => "dep:" + file).join("\n"));