Separate out workflow for main branch push and publish snapshots. (#61)

* Separate out workflow for main branch push and publish snapshots.

* Add needs

Author: Anuraag Agrawal

.github/workflows/main-build.yml

@@ -0,0 +1,76 @@
+name: "Main Build"
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Setup Java 11
+        uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 11
+      - uses: burrunan/gradle-cache-action@v1
+        name: Build
+        with:
+          arguments: --stacktrace build
+          remote-build-cache-proxy-enabled: false
+      - uses: actions/upload-artifact@v2
+        name: Save unit test results
+        if: always()
+        with:
+          name: test-results
+          path: jmx-metrics/build/reports/tests/test
+  integration-test:
+    name: integration-test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Setup Java 11
+        uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 11
+      - uses: burrunan/gradle-cache-action@v1
+        name: Integration Tests
+        with:
+          arguments: --stacktrace integrationTest
+          remote-build-cache-proxy-enabled: false
+      - uses: actions/upload-artifact@v2
+        name: Save integrationTest results
+        if: always()
+        with:
+          name: integration-test-results
+          path: jmx-metrics/build/reports/tests/test
+  publish-snapshots:
+    name: publish-snapshots
+    runs-on: ubuntu-latest
+    needs: [build, integration-test]
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Setup Java 11
+        uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 11
+      - uses: burrunan/gradle-cache-action@v1
+        name: Publish
+        with:
+          arguments: --stacktrace snapshot
+        env:
+          SONATYPE_USER: ${{ secrets.SONATYPE_USER }}
+          SONATYPE_KEY: ${{ secrets.SONATYPE_KEY }}
+          GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
+          GPG_PASSWORD: ${{ secrets.GPG_PASSWORD }}

.github/workflows/pr-build.yml

@@ -1,9 +1,6 @@
 name: "PR Build"
 
 on:
-  push:
-    branches:
-      - main
   pull_request:
     branches:
       - main
@@ -35,7 +32,6 @@ jobs:
   integration-test:
     name: integration-test
     runs-on: ubuntu-latest
-    needs: build
     steps:
       - uses: actions/checkout@v2
         with: