feat: web-ext sign now supports extensions without explicit IDs

package.json

@@ -70,6 +70,7 @@
     "babel-preset-es2015": "6.9.0",
     "babel-preset-stage-2": "6.11.0",
     "chai": "3.5.0",
+    "copy-dir": "0.3.0",
     "coveralls": "2.11.9",
     "deepcopy": "0.6.3",
     "eslint": "2.13.1",

src/cmd/sign.js

@@ -1,19 +1,21 @@
 /* @flow */
+import path from 'path';
+import fs from 'mz/fs';
 import {signAddon as defaultAddonSigner} from '../util/es6-modules';
 
 import defaultBuilder from './build';
-import {InvalidManifest} from '../errors';
 import {withTempDir} from '../util/temp-dir';
-import getValidatedManifest from '../util/manifest';
+import {onlyErrorsWithCode, WebExtError} from '../errors';
+import getValidatedManifest, {getManifestId} from '../util/manifest';
 import {prepareArtifactsDir} from '../util/artifacts';
 import {createLogger} from '../util/logger';
 
 const log = createLogger(__filename);
-
+export const extensionIdFile = '.web-extension-id';
 
 export default function sign(
     {verbose, sourceDir, artifactsDir, apiKey, apiSecret,
-     apiUrlPrefix, timeout}: Object,
+     apiUrlPrefix, id, timeout}: Object,
     {build=defaultBuilder, signAddon=defaultAddonSigner,
      preValidatedManifest=null}: Object = {}): Promise {
 
@@ -28,39 +30,102 @@ export default function sign(
           }
         })
         .then((manifestData) => {
-          if (!manifestData.applications) {
-            // TODO: remove this when signing supports manifests
-            // without IDs: https://github.com/mozilla/web-ext/issues/178
-            throw new InvalidManifest(
-              'applications.gecko.id in manifest.json is required for signing');
+          return Promise.all([
+            build({sourceDir, artifactsDir: tmpDir.path()}, {manifestData}),
+            getIdFromSourceDir(sourceDir),
+          ])
+          .then(([buildResult, idFromSourceDir]) => {
+            return {buildResult, manifestData, idFromSourceDir};
+          });
+        })
+        .then(({buildResult, manifestData, idFromSourceDir}) => {
+          const manifestId = getManifestId(manifestData);
+          if (id && manifestId) {
+            throw new WebExtError(
+              `Cannot set custom ID ${id} because manifest.json ` +
+              `declares ID ${manifestId}`);
+          }
+          if (manifestId) {
+            id = manifestId;
+          }
+          if (!id && idFromSourceDir) {
+            log.info(
+              'Using previously auto-generated extension ID: ' +
+              `${idFromSourceDir}`);
+            id = idFromSourceDir;
+          }
+          if (!id) {
+            log.warn('No extension ID specified (it will be auto-generated)');
           }
-          return manifestData;
+          return signAddon({
+            apiKey,
+            apiSecret,
+            apiUrlPrefix,
+            timeout,
+            verbose,
+            id,
+            xpiPath: buildResult.extensionPath,
+            version: manifestData.version,
+            downloadDir: artifactsDir,
+          });
         })
-        .then((manifestData) => {
-          return build(
-            {sourceDir, artifactsDir: tmpDir.path()},
-            {manifestData})
-            .then((buildResult) => {
-              return {buildResult, manifestData};
-            });
+        .then((signingResult) => {
+          if (signingResult.id) {
+            return saveIdToSourceDir(sourceDir, signingResult.id)
+              .then(() => signingResult);
+          } else {
+            return signingResult;
+          }
         })
-        .then(({buildResult, manifestData}) => signAddon({
-          apiKey,
-          apiSecret,
-          apiUrlPrefix,
-          timeout,
-          verbose,
-          xpiPath: buildResult.extensionPath,
-          id: manifestData.applications.gecko.id,
-          version: manifestData.version,
-          downloadDir: artifactsDir,
-        }))
         .then((signingResult) => {
           // All information about the downloaded files would have
           // already been logged by signAddon().
-          log.info(signingResult.success ? 'SUCCESS' : 'FAIL');
+          if (signingResult.success) {
+            log.info(`Extension ID: ${signingResult.id}`);
+            log.info('SUCCESS');
+          } else {
+            log.info('FAIL');
+          }
           return signingResult;
         });
     }
   );
 }
+
+
+export function getIdFromSourceDir(sourceDir: string): Promise {
+  const filePath = path.join(sourceDir, extensionIdFile);
+  return fs.readFile(filePath)
+    .then((content) => {
+      let lines = content.toString().split('\n');
+      lines = lines.filter((line) => {
+        line = line.trim();
+        if (line && !line.startsWith('#')) {
+          return line;
+        }
+      });
+      let id = lines[0];
+      log.debug(`Found extension ID ${id} in ${filePath}`);
+      if (!id) {
+        throw new WebExtError(`No ID found in extension ID file ${filePath}`);
+      }
+      return id;
+    })
+    .catch(onlyErrorsWithCode('ENOENT', () => {
+      log.debug(`No ID file found at: ${filePath}`);
+    }));
+}
+
+
+export function saveIdToSourceDir(sourceDir: string, id: string): Promise {
+  const filePath = path.join(sourceDir, extensionIdFile);
+  return fs.writeFile(filePath,
+    [
+      '# This file was created by https://github.com/mozilla/web-ext',
+      '# Your auto-generated extension ID for addons.mozilla.org is:',
+      id.toString(),
+    ].join('\n'))
+    .then(() => {
+      log.debug(`Saved auto-generated ID ${id} to ${filePath}`);
+    });
+}

src/program.js

@@ -203,6 +203,13 @@ Example: $0 --help run.
           demand: true,
           type: 'string',
         },
+        'id': {
+          describe:
+            'A custom ID for the extension. This will override ' +
+            'any ID declared by manifest.json.',
+          demand: false,
+          type: 'string',
+        },
         'timeout' : {
           describe: 'Number of milliseconds to wait before giving up',
           type: 'number',