Allow optional implementation_url in support data

schemas/compat-data-schema.md

@@ -403,6 +403,15 @@ Example for two flags required:
 }
 ```
 
+#### `impl_url`
+
+An optional changeset/commit URL for the revision which implemented the feature in the source code, or the URL to the bug tracking the implementation, for the associated browser. The presence of an `impl_url` value indicates that the associated browser has implemented the feature or intends to implement the feature.
+
+For changeset/commit URLs, this is typically a https://trac.webkit.org/changeset/,
+https://hg.mozilla.org/mozilla-central/rev/, or https://crrev.com/ URL for a changeset with
+a subject line that will typically be something of the form _"Implement [feature]"_,
+_"Support [feature]"_, or _"Enable [feature]"_. For bug URLs, this is typically a https://webkit.org/b/, https://bugzil.la/, or https://crbug.com/ URL indicating an intent to implement and ship the feature.
+
 #### `partial_implementation`
 
 A `boolean` value indicating whether or not the implementation of the sub-feature

schemas/compat-data.schema.json

@@ -63,6 +63,24 @@
             "required": ["type", "name"]
           }
         },
+        "impl_url": {
+          "anyOf": [
+            {
+              "$ref": "#/definitions/impl_url_value"
+            },
+            {
+              "type": "array",
+              "minItems": 2,
+              "items": {
+                "$ref": "#/definitions/impl_url_value"
+              }
+            }
+          ],
+          "description": "An optional changeset/commit URL for the revision which implemented the feature in the source code, or the URL to the bug tracking the implementation, for the associated browser.",
+          "errorMessage": {
+            "pattern": "impl_url must be a link to a browser commit or bug URL. URLs must be in shortened form (ex. bugs.chromium.org -> crbug.com). Note: `npm run fix` may resolve these issues."
+          }
+        },
         "partial_implementation": {
           "const": true,
           "description": "A boolean value indicating whether or not the implementation of the sub-feature deviates from the specification in a way that may cause compatibility problems. It defaults to false (no interoperability problems expected). If set to true, it is recommended that you add a note explaining how it diverges from the standard (such as that it implements an old version of the standard, for example)."
@@ -197,6 +215,12 @@
       "pattern": "(^https://[^#]+#.+)|(^https://www.khronos.org/registry/webgl/extensions/[^/]+/)"
     },
 
+    "impl_url_value": {
+      "type": "string",
+      "format": "uri",
+      "pattern": "^https://(trac.webkit.org/changeset/|hg.mozilla.org/mozilla-central/rev/|crrev.com/|bugzil.la/|crbug.com/|webkit.org/b/)"
+    },
+
     "compat_statement": {
       "type": "object",
       "properties": {

scripts/release/mirror.js

@@ -139,7 +139,7 @@ const copyStatement = (data) => {
  * @returns {SupportStatement}
  */
 const combineStatements = (...data) => {
-  const ignoredKeys = ['version_added', 'notes'];
+  const ignoredKeys = ['version_added', 'notes', 'impl_url'];
 
   const flattenedData = data.flat(2);
   const sections = {};

test/linter/test-links.js

@@ -68,6 +68,19 @@ export function processData(rawData) {
     },
   );
 
+  processLink(
+    // use https://crbug.com/category/100000 instead
+    errors,
+    actual,
+    String.raw`https?://chromium\.googlesource\.com/chromium/src/\+/([\w\d]+)`,
+    (match) => {
+      return {
+        issue: 'Use shortenable URL',
+        expected: `https://crrev.com/${match[1]}`,
+      };
+    },
+  );
+
   processLink(
     // use https://webkit.org/b/100000 instead
     errors,

types.d.ts

@@ -227,6 +227,13 @@ export interface SimpleSupportStatement {
      */
     value_to_set?: string;
   }[];
+
+  /**
+   * An optional changeset/commit URL for the revision which implemented the feature in the source code, or the URL to the bug tracking the implementation, for the associated browser; e.g. a https://trac.webkit.org/changeset/
+   * https://hg.mozilla.org/mozilla-central/rev/, or https://crrev.com/ URL.
+   */
+  impl_url?: string;
+
   /**
    * A `boolean` value indicating whether or not the implementation of the sub-feature follows
    * the current specification closely enough to not create major interoperability problems.