Add vsce pre-release step to CI

.github/workflows/bump-version.js

@@ -0,0 +1,50 @@
+const fs = require("fs");
+const path = require("path");
+const semver = require("semver");
+
+const latestPublish = process.argv[2];
+
+const packageJson = fs.readFileSync(path.join("./", "package.json"), {
+  encoding: "utf-8",
+});
+
+let release = JSON.parse(packageJson).version;
+
+let newVersion = latestPublish;
+
+// If the main release gets a major bump but did not get published yet, the package.json version
+// will be higher than the one retrieved from the marketplace, so we need to increment from the main release
+// E.g. package.json gets bumped to 1.5.0 -> 1.6.0
+if (semver.major(release) - semver.major(latestPublish) === 1) {
+  newVersion = semver.inc(release, "minor", semver.rel);
+}
+// A prepublished version must be one minor higher than a regular published version.
+// E.g. if package.json has version 1.3.0 and there is no prepublished version yet,
+// increment minor by one -> 1.4.0.
+else if (semver.minor(latestPublish) === semver.minor(release)) {
+  newVersion = semver.inc(newVersion, "minor", semver.rel);
+}
+// Increment the version patch. E.g. if we fetch version 1.4.0 as the latest pre-release,
+// increment patch by one -> 1.4.1.
+else if (semver.minor(latestPublish) > semver.minor(release)) {
+  newVersion = semver.inc(newVersion, "patch", semver.rel);
+}
+// If the main release gets a minor bump but did not get published yet, the package.json version
+// will be higher than the one retrieved from the marketplace, so we need to increment from the main release
+// E.g. package.json gets bumped to 1.5.0 -> 1.6.0
+else if (semver.minor(release) - semver.minor(latestPublish) === 1) {
+  newVersion = semver.inc(release, "minor", semver.rel);
+}
+// Otherwise throw an error, because the pre-release version should always be just one
+// minor higher than the release version.
+else {
+  throw new Error(
+    "Version number minors are more than off by one, check package.json and (pre-)published versions manually."
+  );
+}
+
+if (!semver.valid(newVersion)) {
+  throw new Error("Invalid version string: ", newVersion);
+}
+
+console.log(`::set-output name=new_version::${newVersion}`);

.github/workflows/ci.yml

@@ -81,18 +81,18 @@ jobs:
   package:
     needs: test
     runs-on: ubuntu-18.04
-  
+
     steps:
     - uses: actions/checkout@v2.3.4
-    
+
     - name: Use Node.js
       uses: actions/setup-node@v2.1.5
       with:
         node-version: 14.4.0
 
     - run: npm ci
     - run: npm run compile
-    
+
     - name: Download MacOS binary
       uses: actions/download-artifact@v3.0.0
       with:
@@ -126,11 +126,52 @@ jobs:
       env:
         COMMIT_SHA: ${{ github.event.pull_request.head.sha || github.sha }}
       run: echo "::set-output name=sha_short::${COMMIT_SHA:0:7}"
-
+
+    - name: Get current pre-release version
+      if: github.ref == 'refs/heads/master'
+      id: get_pre_release
+      run: |
+        JSON=$(npx vsce show chenglou92.rescript-vscode --json)
+        VERSION=$(echo $JSON | jq '.versions | .[0] | .["version"]')
+        echo "::set-output name=current_version::${VERSION}"
+
+    - name: Increment pre-release version
+      if: github.ref == 'refs/heads/master'
+      id: increment_pre_release
+      run: |
+        NEW_VERSION=$(echo ${{ steps.get_pre_release.outputs.current_version }})
+        node .github/workflows/bump-version.js ${NEW_VERSION}
+
     - name: Package Extension
-      run: npx vsce package -o rescript-vscode-${{ steps.vars.outputs.sha_short }}.vsix
-
+      if: github.ref != 'refs/heads/master'
+      run: npx vsce package  -o rescript-vscode-${{ steps.vars.outputs.sha_short }}.vsix
+
+    - name: Package Extension
+      if: github.ref == 'refs/heads/master'
+      run: npx vsce package  -o rescript-vscode-${{ steps.increment_pre_release.outputs.new_version }}.vsix ${{ steps.increment_pre_release.outputs.new_version }} --no-git-tag-version
+
     - uses: actions/upload-artifact@v2
+      if: github.ref != 'refs/heads/master'
       with:
         name: rescript-vscode-${{ steps.vars.outputs.sha_short }}.vsix
         path: rescript-vscode-${{ steps.vars.outputs.sha_short }}.vsix
+
+    - uses: actions/upload-artifact@v2
+      if: github.ref == 'refs/heads/master'
+      with:
+        name: rescript-vscode-${{ steps.increment_pre_release.outputs.new_version }}.vsix
+        path: rescript-vscode-${{ steps.increment_pre_release.outputs.new_version }}.vsix
+
+    - name: Publish latest master to GitHub
+      if: github.ref == 'refs/heads/master'
+      uses: marvinpinto/action-automatic-releases@latest
+      with:
+        repo_token: "${{ secrets.GITHUB_TOKEN }}"
+        automatic_release_tag: "latest-master"
+        prerelease: true
+        title: "Latest master"
+        files: rescript-vscode-${{ steps.increment_pre_release.outputs.new_version }}.vsix
+
+    - name: Publish extension as pre-release
+      if: github.ref == 'refs/heads/master'
+      run: npx vsce publish --pat ${{ secrets.MARKETPLACE_TOKEN }} --pre-release ${{ steps.increment_pre_release.outputs.new_version }} --no-git-tag-version

package.json

@@ -184,6 +184,7 @@
 	"devDependencies": {
 		"@types/node": "^14.14.41",
 		"@types/vscode": "1.68.0",
+		"semver": "^7.3.7",
 		"typescript": "^4.7.3"
 	}
 }