feat(buildkite): support git-hosted plugins (#13042)

lib/manager/buildkite/__fixtures__/pipeline3.yml

@@ -8,14 +8,6 @@ steps:
 
   - wait
 
-  # Use the app image built above to run concurrent tests
-  - name: "Docker Test %n"
-    command: test.sh
-    parallelism: 25
-    plugins:
-      https://github.com/buildkite/plugin-docker-compose#v1.3.2:
-        run: app
-
   - name: "wrong"
     command: test.sh
     parallelism: 25

lib/manager/buildkite/__fixtures__/pipeline5.yml

+steps:
+  - plugins:
+      - ssh://git@github.company.com/some-org/some-plugin#v3.2.7:
+          username: abc
+      - https://github.company.com/some-third-org/some-third-plugin#v0.0.1:
+          build: app

lib/manager/buildkite/__snapshots__/extract.spec.ts.snap

@@ -7,11 +7,6 @@ Array [
     "depName": "namespace/docker-compose",
     "skipReason": "invalid-version",
   },
-  Object {
-    "currentValue": "v1.3.2",
-    "depName": "https://github.com/buildkite/plugin-docker-compose",
-    "skipReason": "git-plugin",
-  },
   Object {
     "currentValue": "v1.3.2",
     "depName": "github.com/buildkite/plugin-docker-compose",
@@ -53,6 +48,27 @@ Array [
 ]
 `;
 
+exports[`manager/buildkite/extract extractPackageFile() extracts git-based plugins 1`] = `
+Array [
+  Object {
+    "currentValue": "v3.2.7",
+    "datasource": "github-tags",
+    "depName": "some-org/some-plugin",
+    "registryUrls": Array [
+      "https://github.company.com",
+    ],
+  },
+  Object {
+    "currentValue": "v0.0.1",
+    "datasource": "github-tags",
+    "depName": "some-third-org/some-third-plugin",
+    "registryUrls": Array [
+      "https://github.company.com",
+    ],
+  },
+]
+`;
+
 exports[`manager/buildkite/extract extractPackageFile() extracts multiple plugins in same file 1`] = `
 Array [
   Object {

lib/manager/buildkite/extract.spec.ts

@@ -5,6 +5,7 @@ const pipeline1 = loadFixture('pipeline1.yml');
 const pipeline2 = loadFixture('pipeline2.yml');
 const pipeline3 = loadFixture('pipeline3.yml');
 const pipeline4 = loadFixture('pipeline4.yml');
+const pipeline5 = loadFixture('pipeline5.yml');
 
 describe('manager/buildkite/extract', () => {
   describe('extractPackageFile()', () => {
@@ -24,12 +25,17 @@ describe('manager/buildkite/extract', () => {
     it('adds skipReason', () => {
       const res = extractPackageFile(pipeline3).deps;
       expect(res).toMatchSnapshot();
-      expect(res).toHaveLength(3);
+      expect(res).toHaveLength(2);
     });
     it('extracts arrays of plugins', () => {
       const res = extractPackageFile(pipeline4).deps;
       expect(res).toMatchSnapshot();
       expect(res).toHaveLength(4);
     });
+    it('extracts git-based plugins', () => {
+      const res = extractPackageFile(pipeline5).deps;
+      expect(res).toMatchSnapshot();
+      expect(res).toHaveLength(2);
+    });
   });
 });

lib/manager/buildkite/extract.ts

@@ -37,9 +37,20 @@ export function extractPackageFile(content: string): PackageFile | null {
           logger.trace('depLineMatch');
           let skipReason: SkipReason;
           let repo: string;
-          if (depName.startsWith('https://') || depName.startsWith('git@')) {
-            logger.debug({ dependency: depName }, 'Skipping git plugin');
-            skipReason = SkipReason.GitPlugin;
+          const gitPluginMatch = regEx(
+            /(ssh:\/\/git@|https:\/\/)(?<registry>[^/]+)\/(?<gitPluginName>.*)/
+          ).exec(depName);
+          if (gitPluginMatch) {
+            logger.debug('Examining git plugin');
+            const { registry, gitPluginName } = gitPluginMatch.groups;
+            const dep: PackageDependency = {
+              depName: gitPluginName,
+              currentValue: currentValue,
+              registryUrls: ['https://' + registry],
+              datasource: datasourceGithubTags.id,
+            };
+            deps.push(dep);
+            continue;
           } else if (isVersion(currentValue)) {
             const splitName = depName.split('/');
             if (splitName.length === 1) {
@@ -76,8 +87,10 @@ export function extractPackageFile(content: string): PackageFile | null {
   } catch (err) /* istanbul ignore next */ {
     logger.warn({ err }, 'Error extracting buildkite plugins');
   }
+
   if (!deps.length) {
     return null;
   }
+
   return { deps };
 }