post gorelease output on the PR, split up releaser workflow

.github/workflows/release-check.yml

@@ -0,0 +1,45 @@
+name: Release Checker
+on:
+  pull_request:
+    paths: [ 'version.json' ]
+    branches: [ master ]
+
+jobs:
+  releaser:
+    runs-on: ubuntu-latest
+    env:
+      HIGHESTRELEASED: ""
+      VERSION: ""
+      GORELEASE: ""
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: "1.16.x"
+      - name: Install gorelease
+        run: go install golang.org/x/exp/cmd/[email protected]
+      - name: Determine version
+        run: echo "VERSION=$(jq -r .version version.json)" >> $GITHUB_ENV
+      - name: Determine highest released version
+        run: echo "HIGHESTRELEASED=$(go list -m -versions | tr " " "\n" | tail -n 1)" >> $GITHUB_ENV
+      - name: Run gorelease
+        id: gorelease
+        if: env.VERSION != env.HIGHESTRELEASED
+        run: |
+          output=$(gorelease || true)
+          # dealing with multi-line strings in GitHub Actions is a pain
+          echo "GORELEASE<<EOF" >> $GITHUB_ENV
+          echo "$output" >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+      - uses: marocchino/sticky-pull-request-comment@v2
+        if: env.VERSION != env.HIGHESTRELEASED
+        with:
+          header: test
+          recreate: true
+          message: |
+            Most recent release is: ${{ env.HIGHESTRELEASED }}
+
+            `gorelease` says:
+            ```
+            ${{ env.GORELEASE }}
+            ```

.github/workflows/releaser.yml

@@ -1,51 +1,19 @@
+name: Releaser
 on:
   push:
     paths: [ 'version.json' ]
     branches: [ master ]
-  pull_request:
-    paths: [ 'version.json' ]
-    branches: [ master ]
 
 jobs:
   releaser:
     runs-on: ubuntu-latest
     env:
       VERSION: ""
-      HIGHESTRELEASED: ""
     steps:
-      - uses: actions/checkout@v2
-        with:
-          repository: fsaintjacques/semver-tool
-          ref: 20028cb53f340a300b460b423e43f0eac13bcd9a # v3.2.0
-          path: semver-tool
-      - name: Install semver-tool
-        run: |
-          cd semver-tool
-          make install
-          cd ..
-          rm -rf semver-tool
-      - uses: actions/setup-go@v2
-        with:
-          go-version: "1.16.x"
-      - name: Install gorelease
-        run: go install golang.org/x/exp/cmd/[email protected]
       - uses: actions/checkout@v2
       - name: Determine version
         run: echo "VERSION=$(jq -r .version version.json)" >> $GITHUB_ENV
-      - name: Determine highest released version
-        run: echo "HIGHESTRELEASED=$(go list -m -versions | tr " " "\n" | tail -n 1)" >> $GITHUB_ENV
-      - name: Check suggested version against gorelease
-        if: ${{ env.VERSION != env.HIGHESTRELEASED }}
-        run: |
-          suggested=$(gorelease | grep Suggested | sed "s/Suggested version: //")
-          echo "gorelease suggested: $suggested"
-          if [[ $(semver compare "${{ env.VERSION }}" "$suggested") == "-1" ]]; then
-            echo "Need a higher version number. Gorelease suggested $suggested"
-            echo "::error file=version.json,line=2,col=1::gorelease says we need at least $suggested"
-            exit 1
-          fi
       - name: Create release
-        if: ${{ github.event_name == 'push' && env.VERSION != env.HIGHESTRELEASED }}
         run: |
           git tag ${{ env.VERSION }}
           git push --tags