1 files changed, 166 insertions, 0 deletions
diff --git a/worker/jobs/ci_pipeline.run b/worker/jobs/ci_pipeline.run
new file mode 100644
index 0000000..337bd53
--- /dev/null
+++ b/worker/jobs/ci_pipeline.run
@@ -0,0 +1,166 @@
+import {
+  type Command,
+  Either,
+  getRequiredEnvVars,
+  getStdout,
+  isObject,
+  LogMetricTraceable,
+  Metric,
+  prependWith,
+  TraceUtil,
+} from "@emprespresso/pengueno";
+import {
+  type CheckoutCiJob,
+  type FetchCodeJob,
+  PipelineImpl,
+} from "@emprespresso/ci-model";
+import { executeJob, executePipeline } from "@emprespresso/ci-worker";
+
+const run = Date.now().toString();
+const eitherJob = getRequiredEnvVars(["remote", "refname", "rev"])
+  .mapRight((baseArgs) => (
+    <CheckoutCiJob> {
+      type: "checkout_ci",
+      arguments: {
+        ...baseArgs,
+        run,
+        returnPath: Deno.cwd(),
+      },
+    }
+  ));
+
+const ciRunMetric = Metric.fromName("checkout_ci.run");
+const trace = `checkout_ci.${run}`;
+await LogMetricTraceable.from(eitherJob).bimap(TraceUtil.withTrace(trace))
+  .bimap(TraceUtil.withMetricTrace(ciRunMetric))
+  .map((tEitherJob) =>
+    tEitherJob.get().flatMapAsync((ciJob) => {
+      const wd = getWorkingDirectoryForCiJob(ciJob);
+      const fetchPackageJob = <FetchCodeJob> {
+        type: "fetch_code",
+        arguments: {
+          remoteUrl: ciJob.arguments.remote,
+          checkout: ciJob.arguments.rev,
+          path: getSrcDirectoryForCiJob(ciJob),
+        },
+      };
+      return Either.fromFailableAsync<Error, CheckoutCiJob>(
+        Deno.mkdir(wd).then(() => Deno.chdir(wd))
+          .then(() => tEitherJob.move(fetchPackageJob).map(executeJob).get())
+          .then(() => ciJob),
+      );
+    })
+  )
+  .map((tEitherCiJob) =>
+    tEitherCiJob.get().then((eitherCiJob) =>
+      eitherCiJob.flatMapAsync<{ cmd: Command; job: CheckoutCiJob }>((ciJob) =>
+        Either.fromFailableAsync<Error, string>(
+          Deno.readTextFile(
+            `${getSrcDirectoryForCiJob(ciJob)}/${CI_WORKFLOW_FILE}`,
+          ),
+        ).then((eitherWorkflowJson) =>
+          eitherWorkflowJson.flatMap(
+            (json) => Either.fromFailable<Error, unknown>(JSON.parse(json)),
+          ).flatMap((eitherWorkflowParse) => {
+            if (isCiWorkflow(eitherWorkflowParse)) {
+              return Either.right({
+                cmd: getPipelineGenerationCommand(
+                  ciJob,
+                  eitherWorkflowParse.workflow,
+                ),
+                job: ciJob,
+              });
+            }
+            return Either.left(
+              new Error(
+                "couldn't find any valid ci configuration (｡•́︿•̀｡), that's okay~",
+              ),
+            );
+          })
+        )
+      )
+    )
+  )
+  .map(async (tEitherPipelineGenerationCommand) => {
+    const eitherJobCommand = await tEitherPipelineGenerationCommand.get();
+    const eitherPipeline = await eitherJobCommand
+      .flatMapAsync((jobCommand) =>
+        tEitherPipelineGenerationCommand.move(jobCommand.cmd)
+          .map(getStdout)
+          .get()
+      );
+    return eitherPipeline
+      .flatMap(PipelineImpl.from)
+      .flatMap((pipeline) =>
+        eitherJobCommand.mapRight(({ job }) => ({ job, pipeline }))
+      );
+  })
+  .peek(
+    TraceUtil.promiseify((tEitherPipeline) =>
+      tEitherPipeline.get()
+        .mapRight((val) => val.pipeline.serialize())
+        .mapRight((pipeline) =>
+          `built the pipeline~ (◕ᴗ◕✿) let's make something amazing! ${pipeline}`
+        )
+        .mapRight((msg) => tEitherPipeline.trace.trace(msg))
+    ),
+  )
+  .map(
+    async (tEitherPipeline) => {
+      const eitherPipeline = await tEitherPipeline.get();
+      return eitherPipeline.flatMapAsync(({ pipeline, job }) =>
+        tEitherPipeline.move(pipeline)
+          .map((p) =>
+            executePipeline(p, {
+              HOME: getWorkingDirectoryForCiJob(job),
+            })
+          )
+          .get()
+      );
+    },
+  )
+  .get()
+  .then((e) =>
+    e.flatMap(() => eitherJob).fold((err, val) => {
+      if (err) throw err;
+      return Deno.remove(getWorkingDirectoryForCiJob(val), { recursive: true });
+    })
+  );
+
+const getWorkingDirectoryForCiJob = (job: CheckoutCiJob) =>
+  `${job.arguments.returnPath}/${job.arguments.run}`;
+
+const getSrcDirectoryForCiJob = (job: CheckoutCiJob) =>
+  `${job.arguments.returnPath}/${job.arguments.run}/src`;
+
+const _runFlags = ("--rm --network none --cap-drop ALL" +
+  "--security-opt no-new-privileges").split(" ");
+const _image = "oci.liz.coffee/img/ci-worker:release";
+const getPipelineGenerationCommand = (
+  job: CheckoutCiJob,
+  pipelineGeneratorPath: string,
+  image = _image,
+  runFlags = _runFlags,
+) => [
+  "docker",
+  "run",
+  ...runFlags,
+  ...prependWith(
+    Object.entries(job.arguments).map(([key, val]) => `"${key}"="${val}"`),
+    "-e",
+  ),
+  "-v",
+  `${
+    getSrcDirectoryForCiJob(job)
+  }/${pipelineGeneratorPath}:/pipeline_generator`,
+  image,
+  "/pipeline_generator",
+];
+
+export interface CiWorkflow {
+  workflow: string;
+}
+export const isCiWorkflow = (t: unknown): t is CiWorkflow =>
+  isObject(t) && "workflow" in t && typeof t.workflow === "string" &&
+  !t.workflow.includes("..");
+const CI_WORKFLOW_FILE = ".ci/ci.json";