Add import maps and import standard library from jsr (#134)

- Add deno.json with import maps
- Load the standard library from jsr as that seems [recommended nowadays](https://docs.deno.com/runtime/manual/basics/import_maps/#example---using-the-deno-standard-library) and I find it more managable than to have versions in each file.
- Bump standard library from 0.189.0 to 0.196.0 because that is the oldest version available on jsr.

.dockerignore

@@ -1,3 +1,3 @@
-**
-
-!src
+.git
+.github
+.vscode

.github/workflows/deploy-to-fly.yaml

@@ -7,7 +7,7 @@ jobs:
     name: Deploy proxy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: superfly/flyctl-actions/setup-flyctl@master
       - run: flyctl deploy --remote-only
         env:

Dockerfile

@@ -3,6 +3,6 @@ RUN apt-get update && apt-get install -y git
 EXPOSE 8000
 USER deno
 WORKDIR /app
-COPY src .
-RUN deno cache webhook.ts
-CMD ["run", "--allow-net", "--allow-env", "--allow-run", "--allow-sys", "webhook.ts"]
+COPY . .
+RUN deno cache src/webhook.ts
+CMD ["run", "--allow-net", "--allow-env", "--allow-run", "--allow-sys", "src/webhook.ts"]

deno.json

@@ -0,0 +1,11 @@
+{
+  "imports": {
+    "@octokit/types": "npm:@octokit/[email protected]",
+    "@octokit/webhooks": "npm:@octokit/[email protected]",
+    "@octokit/webhooks-methods": "npm:@octokit/[email protected]",
+    "@std/async": "jsr:@std/[email protected]",
+    "@std/http": "jsr:@std/[email protected]",
+    "@std/semver": "jsr:@std/[email protected]",
+    "@std/testing": "jsr:@std/[email protected]"
+  }
+}

src/giteaVersion.ts

@@ -1,12 +1,12 @@
-import { SemVer } from "https://deno.land/[email protected]/semver/mod.ts";
+import { parse } from "@std/semver";
 import { getMilestones } from "./github.ts";
 
 export class GiteaVersion {
   majorMinorVersion: string;
   milestoneNumber: number;
 
   constructor(milestone: { title: string; number: number }) {
-    const semver = new SemVer(milestone.title);
+    const semver = parse(milestone.title);
     this.majorMinorVersion = `${semver.major}.${semver.minor}`;
     this.milestoneNumber = milestone.number;
   }

src/github.ts

@@ -1,4 +1,4 @@
-import * as semver from "https://deno.land/[email protected]/semver/mod.ts";
+import { lt, parse, valid } from "@std/semver";
 import { getPrBranchName } from "./git.ts";
 import { GiteaVersion } from "./giteaVersion.ts";
 import { backportPrExistsCache } from "./state.ts";
@@ -293,18 +293,16 @@ export const getMilestones = async (): Promise<Milestone[]> => {
   );
   if (!response.ok) throw new Error(await response.text());
   const json = await response.json();
-  const milestones: Milestone[] = json.filter((m: Milestone) =>
-    semver.valid(m.title)
-  );
+  const milestones: Milestone[] = json.filter((m: Milestone) => valid(m.title));
 
   // take only the earliest patch version of each minor version (e.g. 1.19.0, 1.19.1, 1.19.2 -> 1.19.0)
   const earliestPatchVersions: Record<string, Milestone> = {};
   for (const milestone of milestones) {
-    const version = new semver.SemVer(milestone.title);
+    const version = parse(milestone.title);
     const key = `${version.major}.${version.minor}`;
     if (
       !earliestPatchVersions[key] ||
-      semver.lt(milestone.title, earliestPatchVersions[key].title)
+      lt(milestone.title, earliestPatchVersions[key].title)
     ) {
       earliestPatchVersions[key] = milestone;
     }

src/github_test.ts

@@ -1,7 +1,4 @@
-import {
-  assertEquals,
-  assertFalse,
-} from "https://deno.land/[email protected]/testing/asserts.ts";
+import { assertEquals, assertFalse } from "@std/testing/asserts";
 import {
   backportPrExists,
   fetchBranch,

src/labels.ts

@@ -6,7 +6,7 @@ import {
   removeLabel,
 } from "./github.ts";
 import { fetchGiteaVersions } from "./giteaVersion.ts";
-import { debounce } from "https://deno.land/[email protected]/async/mod.ts";
+import { debounce } from "@std/async";
 import type { PullRequest } from "./types.ts";
 
 // a relevant label is one that is used to control the merge queue,

src/mergeQueue.ts

@@ -1,6 +1,6 @@
 import { fetchPendingMerge, removeLabel } from "./github.ts";
 import * as prActions from "./prActions.ts";
-import { debounce } from "https://deno.land/[email protected]/async/mod.ts";
+import { debounce } from "@std/async";
 
 const updateBranch = async () => {
   // fetch all PRs that are pending merge

src/milestones.ts

@@ -1,4 +1,4 @@
-import * as SemVer from "https://deno.land/[email protected]/semver/mod.ts";
+import * as SemVer from "@std/semver";
 import { fetchGiteaVersions } from "./giteaVersion.ts";
 import * as github from "./github.ts";
 import type { PullRequest } from "./types.ts";

src/prActions.ts

@@ -1,5 +1,5 @@
 import { addComment, needsUpdate, removeLabel, updatePr } from "./github.ts";
-import { debounce } from "https://deno.land/[email protected]/async/mod.ts";
+import { debounce } from "@std/async";
 
 const execute = async (
   label: string,

src/types.ts

@@ -1,4 +1,4 @@
-import { Endpoints } from "npm:@octokit/types@13.5.0";
+import { Endpoints } from "@octokit/types";
 
 type IssueGetResponse =
   Endpoints["GET /repos/{owner}/{repo}/issues/{issue_number}"]["response"][

src/webhook.ts

@@ -1,6 +1,6 @@
-import { serve } from "https://deno.land/[email protected]/http/server.ts";
-import { createEventHandler } from "https://esm.sh/@octokit/webhooks@11.0.0";
-import { verify } from "https://esm.sh/@octokit/webhooks-methods@3.0.2";
+import { serve } from "@std/http";
+import { createEventHandler } from "@octokit/webhooks";
+import { verify } from "@octokit/webhooks-methods";
 import * as backport from "./backport.ts";
 import * as labels from "./labels.ts";
 import * as mergeQueue from "./mergeQueue.ts";