Bug 1712048 - Report the correct exit code when failing in the CLI

CHANGELOG.md

@@ -3,6 +3,8 @@
 [Full changelog](https://github.com/mozilla/glean.js/compare/v0.13.0...main)
 
 * [#313](https://github.com/mozilla/glean.js/pull/313): Send Glean.js version and platform information on X-Telemetry-Agent header instead of User-Agent header.
+* [#343](https://github.com/mozilla/glean.js/pull/343): BUGFIX: Report the correct failure exit code when the Glean command line tool fails.
+
 # v0.13.0 (2021-05-18)
 
 [Full changelog](https://github.com/mozilla/glean.js/compare/v0.12.0...v0.13.0)

glean/src/cli.ts

@@ -165,6 +165,7 @@ async function setup(projectRoot: string) {
     console.log(`Using Glean virtual environment at ${venvRoot}`);
   } else if (!await createPythonVenv(venvRoot)){
     console.error(`Failed to create a Glean virtual environment at ${venvRoot}`);
+    process.exit(1);
   }
 }
 
@@ -189,33 +190,10 @@ async function runGlean(projectRoot: string, parserArgs: string[]) {
 
   if (err) {
     console.error(`${stderr}`);
+    process.exit(1);
   }
 }
 
-/**
- * Runs the command.
- *
- * @param args the arguments passed to this process.
- */
-async function run(args: string[]) {
-  if (args.length < 3) {
-    throw new Error("Not enough arguments. Please refer to https://mozilla.github.io/glean_parser/readme.html");
-  }
-
-  const projectRoot = process.cwd();
-  try {
-    await setup(projectRoot);
-  } catch (err) {
-    console.error("Failed to setup the Glean build environment", err);
-  }
-
-  await runGlean(projectRoot, args.slice(2));
-}
-
-run(argv).catch(e => {
-  console.error("There was an error running Glean", e);
-});
-
 /**
  * Returns a spinner
  *
@@ -239,3 +217,30 @@ function stopSpinner(spinner: NodeJS.Timeout) {
   process.stdout.write("  \r");
   clearInterval(spinner);
 }
+
+/**
+ * Runs the command.
+ *
+ * @param args the arguments passed to this process.
+ */
+async function run(args: string[]) {
+  if (args.length < 3) {
+    throw new Error("Not enough arguments. Please refer to https://mozilla.github.io/glean_parser/readme.html");
+  }
+
+  const projectRoot = process.cwd();
+  try {
+    await setup(projectRoot);
+  } catch (err) {
+    console.error("Failed to setup the Glean build environment", err);
+    process.exit(1);
+  }
+
+  await runGlean(projectRoot, args.slice(2));
+}
+
+// For discoverability, try to leave this function as the last one on this file.
+run(argv).catch(e => {
+  console.error("There was an error running Glean", e);
+  process.exit(1);
+});

samples/web-extension/javascript/README.md

@@ -17,14 +17,14 @@ Running the example requires Python 3.
 npm link
 ```
 
-2. Link the `@mozilla/glean` package to this sample web extension. On this `web-extension` folder run:
+2. Link the `@mozilla/glean` package to this sample web extension. On this `web-extension/javascript` folder run:
 
 ```bash
 npm install
 npm link @mozilla/glean
 ```
 
-3. Build this sample. On this `web-extension` folder run:
+3. Build this sample. On this `web-extension/javascript` folder run:
 
 ```bash
 npm run build
@@ -44,6 +44,6 @@ npm run build
   - **Chromium-based browsers**
     1. Go to [chrome://extensions](chrome://extensions);
     2. Click on `Load unpacked`;
-    3. Choose this `web-extension` folder;
+    3. Choose this `web-extension/javascript` folder;
     4. Click on `background page`;
     5. Try clicking on the little Glean logo that should have been added to your browsers toolbar.

samples/web-extension/typescript/README.md

@@ -17,14 +17,14 @@ Running the example requires Python 3.
 npm link
 ```
 
-2. Link the `@mozilla/glean` package to this sample web extension. On this `web-extension` folder run:
+2. Link the `@mozilla/glean` package to this sample web extension. In this `web-extension/typescript` folder run:
 
 ```bash
 npm install
 npm link @mozilla/glean
 ```
 
-3. Build this sample. On this `web-extension` folder run:
+3. Build this sample. On this `web-extension/typescript` folder run:
 
 ```bash
 npm run build
@@ -44,6 +44,6 @@ npm run build
   - **Chromium-based browsers**
     1. Go to [chrome://extensions](chrome://extensions);
     2. Click on `Load unpacked`;
-    3. Choose this `web-extension` folder;
+    3. Choose this `web-extension/typescript` folder;
     4. Click on `background page`;
     5. Try clicking on the little Glean logo that should have been added to your browsers toolbar.