Merge pull request #23 from r7kamura/increment

Increment version by `release_type` input option

.github/workflows/bump-request.yml

@@ -3,10 +3,13 @@ name: bump-request
 on:
   workflow_dispatch:
     inputs:
-      version:
-        description: Version to change to.
-        required: true
-        type: string
+      release_type:
+        type: choice
+        description: How to bump the version.
+        options:
+          - major
+          - minor
+          - patch
 
 jobs:
   run:

README.md

@@ -13,10 +13,13 @@ name: bump-request
 on:
   workflow_dispatch:
     inputs:
-      version:
-        description: Version to change to.
-        required: true
-        type: string
+      release_type:
+        type: choice
+        description: How to bump the version.
+        options:
+          - major
+          - minor
+          - patch
 
 jobs:
   run:
@@ -75,9 +78,18 @@ command: |
   bundle install
 ```
 
+### `release_type`
+
+How to bump the version.
+
+One of:
+
+- `major`
+- `minor`
+- `patch`
+
 ### `version`
 
-Version to change to.
+You can also specify this directly instead of `release_type`.
 
-- required
 - e.g. `1.2.3`

action.yml

@@ -7,9 +7,12 @@ inputs:
   github_token:
     description: GitHub access token.
     required: false
+  release_type:
+    description: How to bump the version. One of `major`, `minor`, `patch`.
+    required: false
   version:
-    description: Version to change to.
-    required: true
+    description: You can also specify this directly instead of `release_type`.
+    required: false
 runs:
   using: composite
   steps:
@@ -21,11 +24,18 @@ runs:
     - uses: denoland/setup-deno@v1
       with:
         deno-version: v1.x
-    - run: deno run --allow-all src/main.ts
+    - run: deno run --allow-all src/detectNextVersion.ts
       env:
+        BUMP_REQUEST_INPUTS_RELEASE_TYPE: ${{ inputs.release_type }}
         BUMP_REQUEST_INPUTS_VERSION: ${{ inputs.version }}
         GITHUB_TOKEN: ${{ inputs.github_token || github.token }}
       shell: bash
+      id: detect_next_version
+    - run: deno run --allow-all src/createPullRequest.ts
+      env:
+        BUMP_REQUEST_VERSION: ${{ steps.detect_next_version.outputs.version }}
+        GITHUB_TOKEN: ${{ inputs.github_token || github.token }}
+      shell: bash
 branding:
   color: blue
   icon: git-pull-request

src/deps.ts

@@ -1,2 +1,5 @@
+export * as core from "https://esm.sh/@actions/[email protected]?dts";
 export * as exec from "https://esm.sh/@actions/[email protected]?dts";
 export * as github from "https://esm.sh/@actions/[email protected]?dts";
+export * as semver from "https://esm.sh/[email protected]?dts";
+export * as asserts from "https://deno.land/[email protected]/testing/asserts.ts";

src/detectNextVersion.ts

@@ -0,0 +1,54 @@
+import { core } from "./deps.ts";
+import { github } from "./deps.ts";
+import { fetchLatestRelease } from "./github.ts";
+import { incrementVersion } from "./versioning.ts";
+
+const forcedVersion = Deno.env.get("BUMP_REQUEST_INPUTS_VERSION");
+const releaseType = Deno.env.get("BUMP_REQUEST_INPUTS_RELEASE_TYPE");
+const githubToken = Deno.env.get("GITHUB_TOKEN")!;
+
+if (!forcedVersion && !releaseType) {
+  throw new Error(
+    "Specify either `release_type` or `version`.",
+  );
+}
+
+if (releaseType) {
+  if (!["major", "minor", "patch"].includes(releaseType)) {
+    throw new Error(
+      "`release_type` must be one of `major`, `minor`, or `patch`.",
+    );
+  }
+}
+
+core.setOutput(
+  "version",
+  await detectNextVersion({
+    githubToken,
+    githubOwner: github.context.repo.owner,
+    githubRepo: github.context.repo.repo,
+    releaseType: releaseType!,
+  }),
+);
+
+async function detectNextVersion({
+  githubToken,
+  githubOwner,
+  githubRepo,
+  releaseType,
+}: {
+  githubToken: string;
+  githubOwner: string;
+  githubRepo: string;
+  releaseType: string;
+}) {
+  const response = await fetchLatestRelease({
+    githubToken,
+    owner: githubOwner,
+    repo: githubRepo,
+  });
+  return incrementVersion({
+    version: response.data.tag_name,
+    releaseType,
+  });
+}

src/github.ts

@@ -59,6 +59,24 @@ export async function createPullRequest({
   );
 }
 
+export async function fetchLatestRelease({
+  githubToken,
+  owner,
+  repo,
+}: {
+  githubToken: string;
+  owner: string;
+  repo: string;
+}) {
+  return await github.getOctokit(githubToken).request(
+    "GET /repos/{owner}/{repo}/releases/latest",
+    {
+      owner,
+      repo,
+    },
+  );
+}
+
 function preventMention(text: string) {
   return text.replace(/@/g, "@\u200B");
 }

src/versioning.ts

@@ -0,0 +1,32 @@
+import { semver } from "./deps.ts";
+import { asserts } from "./deps.ts";
+
+export function incrementVersion({
+  version,
+  releaseType,
+}: {
+  version: string;
+  releaseType: string;
+}) {
+  return semver.inc(
+    version,
+    releaseType as semver.ReleaseType,
+  );
+}
+
+Deno.test("incrementVersion", () => {
+  asserts.assertEquals(
+    incrementVersion({
+      version: "1.0.0",
+      releaseType: "major",
+    }),
+    "2.0.0",
+  );
+  asserts.assertEquals(
+    incrementVersion({
+      version: "v1.0.0",
+      releaseType: "minor",
+    }),
+    "1.1.0",
+  );
+});