Use snapshot build in functional tests (#643)

### What's done:
* Use snapshot build in CLI run
* Removed functional tests workflow
* Do not use github packages
* Run all tests on different platforms

.github/workflows/build_and_test.yml

@@ -4,11 +4,12 @@ on:
   pull_request
 
 jobs:
-  test:
-    name: Unit Test
+  build_and_test_with_code_coverage:
+    name: Build, test and upload code coverage
     runs-on: ubuntu-18.04
 
     steps:
+      # actions/checkout v1.* is needed for correct codecov upload, see github issues for details
       - uses: actions/checkout@v1
       - name: Set up JDK 11
         uses: actions/setup-java@v1
@@ -31,3 +32,91 @@ jobs:
           file: ./*/target/site/jacoco/jacoco.xml
           flags: unittests
           fail_ci_if_error: true # optional (default = false)
+      - name: Upload diktat jar
+        uses: actions/upload-artifact@v2
+        with:
+          name: diktat-ruleset
+          path: diktat-ruleset/target/diktat-*.jar
+          # no need to store artifact longer, it is used only by dependant jobs
+          retention-days: 1
+
+  run_diktat_from_CLI:
+    name: Run diktat via CLI
+    runs-on: ${{ matrix.os }}
+    needs: build_and_test_with_code_coverage
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+
+    steps:
+      - uses: actions/[email protected]
+
+      - name: Setup environment variables
+        run: |
+          cat pom.xml | grep "<version>.*</version>" | head -1 | awk -F'[><]' '{ printf "DIKTAT_VERSION=%s\n",$3 }' >> $GITHUB_ENV
+          cat pom.xml | grep "<ktlint.version>.*</ktlint.version>" | head -1 | awk -F'[><]' '{ printf "KTLINT_VERSION=%s\n",$3 }' >> $GITHUB_ENV
+        shell: bash
+
+      - name: Setup environment
+        run: |
+          curl -sSLO https://github.com/pinterest/ktlint/releases/download/${{ env.KTLINT_VERSION }}/ktlint && chmod a+x ktlint
+        shell: bash
+
+      - name: Download diktat jar
+        uses: actions/download-artifact@v2
+        with:
+          name: diktat-ruleset
+
+      - name: Run diKTat from cli
+        continue-on-error: true
+        if: ${{ runner.os == 'Linux' || runner.os == 'macOS' }}
+        run: |
+          ./ktlint -R diktat-${{ env.DIKTAT_VERSION }}.jar "examples/maven/src/main/kotlin/Test.kt" &> out
+        shell: bash
+
+      - name: Run diKTat from cli on windows
+        continue-on-error: true
+        if: runner.os == 'Windows'
+        run: |
+          java.exe -jar ktlint -R diktat-${{ env.DIKTAT_VERSION }}.jar "examples/maven/src/main/kotlin/Test.kt" > out.txt 2>&1
+        shell: cmd
+
+      - name: Check output
+        id: cli-check
+        run: |
+          if [ -f out.txt ]; then mv out.txt out; fi
+          cat out
+          grep -E "\[VARIABLE_NAME_INCORRECT_FORMAT\]" out
+        shell: bash
+
+  build_and_test:
+    name: Build and test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+    steps:
+      - uses: actions/[email protected]
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.11
+      - name: Cache local Maven repository
+        uses: actions/cache@v2
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-build-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-build-
+
+      - name: Maven Install
+        if: ${{ runner.os == 'Linux' || runner.os == 'macOS' }}
+        run: |
+          mvn -B clean install
+        shell: bash
+
+      - name: Maven Install on windows
+        if: runner.os == 'Windows'
+        run: |
+          mvn -B clean install
+        shell: cmd

examples/maven/pom.xml

@@ -7,12 +7,16 @@
     <packaging>pom</packaging>
     <version>1.0.0-SNAPSHOT</version>
 
+    <properties>
+        <diktat.version>0.1.7</diktat.version>
+    </properties>
+
     <build>
         <plugins>
             <plugin>
                 <groupId>org.cqfn.diktat</groupId>
                 <artifactId>diktat-maven-plugin</artifactId>
-                <version>0.1.7</version>
+                <version>${diktat.version}</version>
                 <configuration>
                     <diktatConfigFile>diktat-analysis.yml</diktatConfigFile>
                     <inputs>

pom.xml

@@ -66,6 +66,7 @@
         <module>diktat-gradle-plugin</module>
     </modules>
 
+    <!-- Even though deployment is handled by nexus plugin, this section is required for it's operation -->
     <distributionManagement>
         <snapshotRepository>
             <id>ossrh</id>
@@ -200,6 +201,11 @@
                     <artifactId>maven-plugin-plugin</artifactId>
                     <version>3.6.0</version>
                 </plugin>
+                <plugin>
+                    <groupId>org.apache.maven.plugins</groupId>
+                    <artifactId>maven-failsafe-plugin</artifactId>
+                    <version>3.0.0-M5</version>
+                </plugin>
                 <plugin>
                     <groupId>org.codehaus.mojo</groupId>
                     <artifactId>versions-maven-plugin</artifactId>