feat: add circle pr number

packages/core/src/ci-environment/index.ts

@@ -1,24 +1,14 @@
 import envCi from "env-ci";
 import heroku from "./services/heroku";
 import githubActions from "./services/github-actions";
-import type { CiEnvironment, Options } from "./types";
+import circleci from "./services/circleci";
+import type { CiEnvironment, Options, Context } from "./types";
 
 export { CiEnvironment };
 
-const services = [heroku, githubActions];
+const services = [heroku, githubActions, circleci];
 
-export const getCiEnvironment = ({
-  env = process.env,
-}: Options = {}): CiEnvironment | null => {
-  const ctx = { env };
-  const service = services.find((service) => service.detect(ctx));
-
-  // Internal service matched
-  if (service) {
-    return service.config(ctx);
-  }
-
-  // Fallback on env-ci detection
+export const envCiDetection = (ctx: Context) => {
   const ciContext = envCi(ctx);
   const name = ciContext.isCi
     ? ciContext.name ?? null
@@ -38,3 +28,17 @@ export const getCiEnvironment = ({
     ? { name, commit, branch, owner, repository, jobId, runId, prNumber }
     : null;
 };
+
+export const getCiEnvironment = ({
+  env = process.env,
+}: Options = {}): CiEnvironment | null => {
+  const ctx = { env };
+  const service = services.find((service) => service.detect(ctx));
+
+  // Internal service matched
+  if (service) {
+    return service.config(ctx);
+  }
+
+  return envCiDetection(ctx);
+};

packages/core/src/ci-environment/services/circleci.ts

@@ -0,0 +1,32 @@
+import type { Service, Context } from "../types";
+import { envCiDetection } from "../index";
+
+const getPrNumber = ({ env }: Context) => {
+  const branchRegex = /pull\/(\d+)/;
+  const branchMatches = branchRegex.exec(env.CIRCLE_PULL_REQUEST || "");
+  if (branchMatches) {
+    branchMatches[1];
+  }
+
+  return null;
+};
+
+const service: Service = {
+  detect: ({ env }) => Boolean(env.CIRCLECI),
+  config: ({ env }) => {
+    const ciProps = envCiDetection({ env });
+
+    return {
+      name: "CircleCI",
+      commit: ciProps?.commit || null,
+      branch: ciProps?.branch || null,
+      owner: ciProps?.owner || null,
+      repository: ciProps?.repository || null,
+      jobId: ciProps?.jobId || null,
+      runId: ciProps?.runId || null,
+      prNumber: getPrNumber({ env }),
+    };
+  },
+};
+
+export default service;