Added support "extend" tag feature

Author: firecow

src/job.ts

@@ -1,4 +1,5 @@
 import * as c from "ansi-colors";
+import * as deepExtend from "deep-extend";
 import * as prettyHrtime from "pretty-hrtime";
 import * as shelljs from "shelljs";
 
@@ -27,6 +28,23 @@ export class Job {
         this.cwd = cwd;
         this.globals = globals;
 
+        // Parse extends
+        if (jobData.extends) {
+            const extendList = [].concat(jobData.extends);
+            const deepExtendList: any[] = [];
+            extendList.forEach((parentJobName) => {
+                if (!globals[parentJobName]) {
+                    console.error(`${c.red(`'${parentJobName}' could not be found`)}`);
+                    process.exit(1);
+                }
+                deepExtendList.push(globals[parentJobName]);
+            });
+
+            deepExtendList.push(jobData);
+            // tslint:disable-next-line:no-parameter-reassignment
+            jobData = deepExtend.apply(this, deepExtendList);
+        }
+
         this.stage = jobData.stage || ".pre";
         this.scripts = [].concat(jobData.script || []);
 

tests/test-yml-spec/.gitlab-ci.yml

@@ -6,9 +6,27 @@ include:
 .defaultTags: &tags
   tags: [some_runner_tag]
 
+.parent0:
+  <<: *tags
+  stage: prepare
+  before_script: [echo "I'm from parents0 (before_script)"]
+  script: [echo "I'm from parents0 (script)"]
+  after_script: [echo "I'm from parents0 (after_script)"]
+
+.parent1:
+  stage: build
+  before_script: [echo "I'm from parents1 (before_script)"]
+  script: [echo "I'm from parents1 (script)"]
+  after_script: [echo "I'm from parents1 (after_script)"]
+
 variables:
   PROJECT_NAME: test-yml-spec-project
 
+extending:
+  extends: [.parent0, .parent1]
+  script:
+    - echo "I'm from extending (script)"
+
 echo_project_name:
   <<: *tags
   stage: startup