Adds support for GitLab CI

.gitignore

@@ -53,3 +53,8 @@ test-results.json
 source/_danger.d.tse
 source/_danger.d.ts
 tests.json
+
+# IDEs
+.idea
+
+/*.sh

.travis.yml

@@ -23,7 +23,7 @@ matrix:
         - yarn flow check
 
     # Checks every example dangerfile can run in `danger runner`.
-    - node_js: "8.4"
+    - node_js: "8"
       script:
         - yarn build
         - node scripts/run-fixtures.js
@@ -67,7 +67,7 @@ matrix:
           source/platforms/git/_tests/local_dangerfile_example.ts || echo "Skipping Danger Local for non PR run"'
 
     # Create some fake projects at runtime
-    - node_js: "8.12"
+    - node_js: "8"
       script:
         - echo "This is only for Integration tests on two blank projects"
         - yarn build

CHANGELOG.md

@@ -16,6 +16,8 @@
 <!-- Your comment below this -->
 - Add support for AppCenter - [@mrndjo]
 
+- Adds GitLab & GitLab CI support. - [@notjosh], [@bigkraig], [@jamime]
+
 # 7.1.4
 
 - Un-hardcodes the repo in `danger.github.utils.createOrUpdatePR`- [@ds300]
@@ -1634,3 +1636,4 @@ Not usable for others, only stubs of classes etc. - [@orta]
 [@dblandin]: https://github.com/dblandin
 [@paulmelnikow]: https://github.com/paulmelnikow
 [@ds300]: https://github.com/ds300
+[@jamime]: https://github.com/jamime

README.md

@@ -19,9 +19,9 @@ review.
 
 You can use Danger to codify your teams norms, leaving humans to think about harder problems.
 
-Danger JS works with GitHub or BitBucket Server for code review, then with: Travis CI, Circle CI, GitHub Actions,
-Semaphore, Jenkins, Docker Cloud, Bitrise, surf-build, Codeship, Drone, Buildkite, Nevercode, buddybuild, TeamCity,
-Visual Studio Team Services, Screwdriver, Concourse, Netlify, CodeBuild, Codefresh or AppCenter.
+Danger JS works with GitHub or BitBucket Server for code review, then with: Travis CI, GitLab CI, Circle CI, GitHub
+Actions, Semaphore, Jenkins, Docker Cloud, Bitrise, surf-build, Codeship, Drone, Buildkite, Nevercode, buddybuild,
+TeamCity, Visual Studio Team Services, Screwdriver, Concourse, Netlify, CodeBuild, Codefresh or AppCenter.
 
 [![npm](https://img.shields.io/npm/v/danger.svg)](https://www.npmjs.com/package/danger)
 [![Build Status](https://travis-ci.org/danger/danger-js.svg?branch=master)](https://travis-ci.org/danger/danger-js)
@@ -83,7 +83,7 @@ it compiles.
 You can run your dev copy of danger against a PR by running:
 
 ```sh
-yarn build; node --inspect distribution/source/commands/danger-pr.js https://github.com/danger/danger-js/pull/817
+yarn build; node --inspect distribution/commands/danger-pr.js https://github.com/danger/danger-js/pull/817
 ```
 
 ### How does Danger JS work?

package.json

@@ -100,6 +100,7 @@
     "@types/lodash.mapvalues": "^4.6.6",
     "@types/lodash.memoize": "^4.1.3",
     "@types/micromatch": "^3.1.0",
+    "@types/nock": "^10.0.3",
     "@types/node": "^10.11.3",
     "@types/node-fetch": "^2.1.2",
     "@types/p-limit": "^2.0.0",
@@ -115,6 +116,7 @@
     "jest-json-reporter": "^1.2.2",
     "lint-staged": "^7.3.0",
     "madge": "^3.2.0",
+    "nock": "^10.0.6",
     "pkg": "^4.3.4",
     "prettier": "^1.14.2",
     "release-it": "^7.6.1",
@@ -134,6 +136,7 @@
     "commander": "^2.18.0",
     "debug": "^4.1.1",
     "get-stdin": "^6.0.0",
+    "gitlab": "^6.0.0",
     "http-proxy-agent": "^2.1.0",
     "https-proxy-agent": "^2.2.1",
     "hyperlinker": "^1.0.0",

source/ci_source/providers/GitLabCI.ts

@@ -0,0 +1,30 @@
+import { Env, CISource } from "../ci_source"
+import { ensureEnvKeysExist, ensureEnvKeysAreInt } from "../ci_source_helpers"
+
+export class GitLabCI implements CISource {
+  constructor(private readonly env: Env) {}
+
+  get name(): string {
+    return "GitLab CI"
+  }
+
+  get isCI(): boolean {
+    return ensureEnvKeysExist(this.env, ["GITLAB_CI"])
+  }
+
+  get isPR(): boolean {
+    const mustHave = ["CI_MERGE_REQUEST_IID", "CI_PROJECT_PATH"]
+    const mustBeInts = ["CI_MERGE_REQUEST_IID"]
+    return ensureEnvKeysExist(this.env, mustHave) && ensureEnvKeysAreInt(this.env, mustBeInts)
+  }
+
+  get pullRequestID(): string {
+    return this.env.CI_MERGE_REQUEST_IID
+  }
+
+  get repoSlug(): string {
+    return this.env.CI_PROJECT_PATH
+  }
+}
+
+// See https://docs.gitlab.com/ee/ci/variables/predefined_variables.html

source/ci_source/providers/index.ts

@@ -11,6 +11,7 @@ import { DockerCloud } from "./DockerCloud"
 import { Drone } from "./Drone"
 import { FakeCI } from "./Fake"
 import { GitHubActions } from "./GitHubActions"
+import { GitLabCI } from "./GitLabCI"
 import { Jenkins } from "./Jenkins"
 import { Netlify } from "./Netlify"
 import { Nevercode } from "./Nevercode"
@@ -24,6 +25,7 @@ import { VSTS } from "./VSTS"
 const providers = [
   FakeCI,
   GitHubActions,
+  GitLabCI,
   Travis,
   Circle,
   Semaphore,
@@ -49,6 +51,7 @@ const providers = [
 // Mainly used for Dangerfile linting
 const realProviders = [
   GitHubActions,
+  GitLabCI,
   Travis,
   Circle,
   Semaphore,

source/commands/ci/runner.ts

@@ -58,6 +58,7 @@ export const runRunner = async (app: SharedCLI, config?: Partial<RunnerConfig>)
 
     if (platform) {
       const dangerJSONDSL = await jsonDSLGenerator(platform, source, app)
+      d({ dangerJSONDSL })
       const execConfig: ExecutorOptions = {
         stdoutOnly: !platform.supportsCommenting() || app.textOnly,
         verbose: app.verbose,

source/commands/danger-pr.ts

@@ -14,6 +14,7 @@ import { prepareDangerDSL } from "./utils/runDangerSubprocess"
 import { runRunner } from "./ci/runner"
 import { Platform, getPlatformForEnv } from "../platforms/platform"
 import { CISource } from "../ci_source/ci_source"
+import { getGitLabAPICredentialsFromEnv } from "../platforms/gitlab/GitLabAPI"
 
 const d = debug("pr")
 const log = console.log
@@ -25,6 +26,8 @@ interface App extends SharedCLI {
   js?: boolean
 }
 
+const gitLabApiCredentials = getGitLabAPICredentialsFromEnv(process.env)
+
 program
   .usage("[options] <pr_url>")
   .description("Emulate running Danger against an existing GitHub Pull Request.")
@@ -34,9 +37,15 @@ program
   .on("--help", () => {
     log("\n")
     log("  Docs:")
-    if (!process.env["DANGER_GITHUB_API_TOKEN"] && !process.env["DANGER_BITBUCKETSERVER_HOST"]) {
+    if (
+      !process.env["DANGER_GITHUB_API_TOKEN"] &&
+      !process.env["DANGER_BITBUCKETSERVER_HOST"] &&
+      !gitLabApiCredentials.token
+    ) {
       log("")
-      log("     You don't have a DANGER_GITHUB_API_TOKEN set up, this is optional, but TBH, you want to do this.")
+      log(
+        "     You don't have a DANGER_GITHUB_API_TOKEN/DANGER_GITLAB_API_TOKEN set up, this is optional, but TBH, you want to do this."
+      )
       log("     Check out: http://danger.systems/js/guides/the_dangerfile.html#working-on-your-dangerfile")
       log("")
     }
@@ -60,13 +69,14 @@ if (program.args.length === 0) {
   console.error("Please include a PR URL to run against")
   process.exitCode = 1
 } else {
-  const customHost = process.env["DANGER_GITHUB_HOST"] || process.env["DANGER_BITBUCKETSERVER_HOST"] || "github"
+  const customHost =
+    process.env["DANGER_GITHUB_HOST"] || process.env["DANGER_BITBUCKETSERVER_HOST"] || gitLabApiCredentials.host // this defaults to https://gitlab.com
 
   // Allow an ambiguous amount of args to find the PR reference
-  const findPR = program.args.find(a => a.includes(customHost))
+  const findPR = program.args.find(a => a.includes(customHost) || a.includes("github"))
 
   if (!findPR) {
-    console.error(`Could not find an arg which mentioned GitHub or BitBucket Server.`)
+    console.error(`Could not find an arg which mentioned GitHub, BitBucket Server, or GitLab.`)
     process.exitCode = 1
   } else {
     const pr = pullRequestParser(findPR)
@@ -86,7 +96,18 @@ if (program.args.length === 0) {
           d(`executing dangerfile at ${dangerfilePath(program)}`)
         }
         const source = new FakeCI({ DANGER_TEST_REPO: pr.repo, DANGER_TEST_PR: pr.pullRequestNumber })
-        const platform = getPlatformForEnv(process.env, source, /* requireAuth */ false)
+        const platform = getPlatformForEnv(
+          {
+            ...process.env,
+            // Inject a platform hint, its up to getPlatformForEnv to decide if the environment is suitable for the
+            // requested platform. Because we have a URL we can determine with greater accuracy what platform that the
+            // user is attempting to test. This complexity is required because danger-pr defaults to using
+            // un-authenticated GitHub where typically when using FakeCI we want to use Fake(Platform) e.g. when running
+            // danger-local
+            DANGER_PR_PLATFORM: pr.platform,
+          },
+          source
+        )
 
         if (isJSON) {
           d("getting just the JSON/JS DSL")