mirage: Add meta field in GET /api/v1/crates/:id/versions

mirage/route-handlers/-utils.js

@@ -1,4 +1,6 @@
 import { Response } from 'miragejs';
+import semverParse from 'semver/functions/parse';
+import semverSort from 'semver/functions/rsort';
 
 export function notFound() {
   return new Response(
@@ -31,3 +33,17 @@ export function compareIsoDates(a, b) {
   let bDate = new Date(b);
   return aDate < bDate ? -1 : aDate > bDate ? 1 : 0;
 }
+
+export function releaseTracks(versions) {
+  let versionNums = versions.models.filter(it => !it.yanked).map(it => it.num);
+  semverSort(versionNums, { loose: true });
+  let tracks = {};
+  for (let num of versionNums) {
+    let semver = semverParse(num, { loose: true });
+    if (!semver || semver.prerelease.length !== 0) continue;
+    let name = semver.major == 0 ? `0.${semver.minor}` : `${semver.major}`;
+    if (name in tracks) continue;
+    tracks[name] = { highest: num };
+  }
+  return tracks;
+}

mirage/route-handlers/crates.js

@@ -1,7 +1,7 @@
 import { Response } from 'miragejs';
 
 import { getSession } from '../utils/session';
-import { compareIsoDates, compareStrings, notFound, pageParams } from './-utils';
+import { compareIsoDates, compareStrings, notFound, pageParams, releaseTracks } from './-utils';
 
 export function list(schema, request) {
   const { start, end } = pageParams(request);
@@ -140,12 +140,23 @@ export function register(server) {
     return { ok: true };
   });
 
-  server.get('/api/v1/crates/:name/versions', (schema, request) => {
+  server.get('/api/v1/crates/:name/versions', function (schema, request) {
     let { name } = request.params;
     let crate = schema.crates.findBy({ name });
     if (!crate) return notFound();
 
-    return crate.versions.sort((a, b) => compareIsoDates(b.created_at, a.created_at));
+    let versions = crate.versions.sort((a, b) => compareIsoDates(b.created_at, a.created_at));
+    let total = versions.length;
+    let include = request.queryParams?.include ?? '';
+    let release_tracks = include.split(',').includes('release_tracks') && releaseTracks(crate.versions);
+    let resp = {
+      ...this.serialize(versions),
+      meta: { total, next_page: null },
+    };
+    if (release_tracks && Object.keys(release_tracks).length !== 0) {
+      resp.meta.release_tracks = release_tracks;
+    }
+    return resp;
   });
 
   server.get('/api/v1/crates/:name/:version_num/authors', (schema, request) => {

tests/mirage/crates/versions/list-test.js

@@ -22,6 +22,7 @@ module('Mirage | GET /api/v1/crates/:id/versions', function (hooks) {
     assert.strictEqual(response.status, 200);
     assert.deepEqual(await response.json(), {
       versions: [],
+      meta: { total: 0, next_page: null },
     });
   });
 
@@ -103,6 +104,37 @@ module('Mirage | GET /api/v1/crates/:id/versions', function (hooks) {
           yank_message: null,
         },
       ],
+      meta: { total: 3, next_page: null },
+    });
+  });
+
+  test('include `release_tracks` meta', async function (assert) {
+    let user = this.server.create('user');
+    let crate = this.server.create('crate', { name: 'rand' });
+    this.server.create('version', { crate, num: '0.0.1' });
+    this.server.create('version', { crate, num: '0.0.2', yanked: true });
+    this.server.create('version', { crate, num: '1.0.0' });
+    this.server.create('version', { crate, num: '1.1.0', publishedBy: user });
+    this.server.create('version', { crate, num: '1.2.0', rust_version: '1.69', yanked: true });
+
+    let req = await fetch('/api/v1/crates/rand/versions');
+    let expected = await req.json();
+
+    let response = await fetch('/api/v1/crates/rand/versions?include=release_tracks');
+    assert.strictEqual(response.status, 200);
+    assert.deepEqual(await response.json(), {
+      ...expected,
+      meta: {
+        ...expected.meta,
+        release_tracks: {
+          '0.0': {
+            highest: '0.0.1',
+          },
+          1: {
+            highest: '1.1.0',
+          },
+        },
+      },
     });
   });
 });