feat(releases): gitlab support

Author: jessevanmuijden

packages/netlify-cms-backend-gitlab/src/API.ts

@@ -1015,4 +1015,30 @@ export default class API {
     const mergeRequest = await this.getBranchMergeRequest(branch);
     return mergeRequest.sha;
   }
+
+  async listReleases() {
+    console.log(
+      '%c Loading releases',
+      'line-height: 30px;text-align: center;font-weight: bold',
+    );
+
+    return this.request(`${this.repoURL}/releases`)
+  }
+
+  async publishRelease(version: string) {
+    console.log(
+      `%c Publishing release ${version}`,
+      'line-height: 30px;text-align: center;font-weight: bold',
+    );
+
+    return this.requestJSON({
+      url: `${this.repoURL}/releases`,
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json; charset=utf-8' },
+      body: JSON.stringify({
+        tag_name: version,
+        ref: this.branch,
+      }),
+    });
+  }
 }

packages/netlify-cms-backend-gitlab/src/implementation.ts

@@ -453,4 +453,22 @@ export default class GitLab implements Implementation {
       return null;
     }
   }
+
+  async listReleases() {
+    try {
+      const response = await this.api!.listReleases();
+      const json = await response.json()
+      return json;
+    } catch (e) {
+      return [];
+    }
+  }
+
+  async publishRelease(version: string) {
+    try {
+      return await this.api!.publishRelease(version);
+    } catch (e) {
+      return;
+    }
+  }
 }

packages/netlify-cms-core/src/components/Releases/Releases.js

@@ -80,7 +80,7 @@ class Releases extends Component {
                 <ul>
                   {releases.map(release => (
                     <li key={release.tag_name}>
-                      <a href={release.html_url}>
+                      <a href={release.html_url || release._links.self}>
                         {release.tag_name}
                       </a>
                     </li>