Repo infrastructure (#5)

### What's done:
* Diktat code analysis
* Detekt code analysis
* Git hooks
* Fixed code style

.git-hooks/commit-msg.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+commit_pattern="(Merge (remote-tracking )?branch|### What's done:)"
+error_msg="Your commit message doesn't match the pattern $commit_pattern. Please fix it."
+
+if [[ ! $( cat "$1" ) =~ $commit_pattern ]]
+then
+    echo "$error_msg"
+    exit 1
+fi
+
+exit 0

.git-hooks/pre-commit.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+branch_name="$(git rev-parse --abbrev-ref HEAD)"
+branch_pattern="^(feature|bugfix|hotfix|infra)/.*$"
+error_message="Your branch name doesn't match the pattern $branch_pattern. Please correct it before committing."
+
+if [[ ! $branch_name =~ $branch_pattern ]]
+then
+  echo "$error_message"
+  exit 1
+fi
+
+exit 0

.github/workflows/build_and_test.yml

@@ -1,7 +1,10 @@
 name: Build and test
 
 on:
-  pull_request
+  pull_request:
+  push:
+    branches:
+      - 'master'
 
 jobs:
   build_and_test_with_code_coverage:
@@ -31,7 +34,7 @@ jobs:
         run: |
           ARCH=$(uname -m)
           URL=https://storage.googleapis.com/gvisor/releases/release/latest/${ARCH}
-          wget ${URL}/runsc ${URL}/runsc.sha512 \
+          wget -nv ${URL}/runsc ${URL}/runsc.sha512 \
             ${URL}/containerd-shim-runsc-v1 ${URL}/containerd-shim-runsc-v1.sha512
           sha512sum -c runsc.sha512 \
             -c containerd-shim-runsc-v1.sha512
@@ -42,7 +45,7 @@ jobs:
           sudo systemctl reload docker
       - name: Gradle build
         run: |
-          ./gradlew build
+          ./gradlew build -x detekt
       - name: Upload test reports
         uses: actions/upload-artifact@v2
         with:

.github/workflows/detekt.yml

@@ -0,0 +1,30 @@
+name: Run deteKT
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  detekt_check:
+    runs-on: ubuntu-20.04
+    env:
+      GRADLE_OPTS: -Dorg.gradle.daemon=false
+
+    steps:
+      - uses: actions/[email protected]
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.11
+      - name: Cache gradle caches
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.gradle/caches/
+            ~/.gradle/wrapper/
+          key: ${{ runner.os }}-gradle-detekt-${{ hashFiles('**/*.gradle*') }}
+          restore-keys: ${{ runner.os }}-gradle-detekt
+      - name: Run detekt
+        run: ./gradlew detektAll

.github/workflows/diktat.yml

@@ -0,0 +1,30 @@
+name: Run diKTat
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  diktat_check:
+    runs-on: ubuntu-20.04
+    env:
+      GRADLE_OPTS: -Dorg.gradle.daemon=false
+
+    steps:
+      - uses: actions/[email protected]
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.11
+      - name: Cache gradle caches
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.gradle/caches/
+            ~/.gradle/wrapper/
+          key: ${{ runner.os }}-gradle-diktat-${{ hashFiles('**/*.gradle*') }}
+          restore-keys: ${{ runner.os }}-gradle-diktat
+      - name: Run diktat
+        run: ./gradlew diktatCheckAll

build.gradle.kts

@@ -1,10 +1,23 @@
+import org.cqfn.save.buildutils.configureDetekt
+import org.cqfn.save.buildutils.configureDiktat
+import org.cqfn.save.buildutils.createDetektTask
+import org.cqfn.save.buildutils.createDiktatTask
+import org.cqfn.save.buildutils.installGitHooks
+
 plugins {
     kotlin("jvm") version "1.4.21" apply false
+    id("com.github.ben-manes.versions") version "0.36.0"
 }
 
 allprojects {
     repositories {
         jcenter()
         mavenCentral()
     }
+    configureDiktat()
+    configureDetekt()
 }
+
+createDiktatTask()
+createDetektTask()
+installGitHooks()

buildSrc/build.gradle.kts

@@ -4,4 +4,9 @@ plugins {
 
 repositories {
     jcenter()
+}
+
+dependencies {
+    implementation("org.cqfn.diktat:diktat-gradle-plugin:0.4.0")
+    implementation("io.gitlab.arturbosch.detekt:detekt-gradle-plugin:1.15.0")
 }

buildSrc/src/main/kotlin/Versions.kt

@@ -1,10 +1,10 @@
 object Versions {
-    val kotlin = "1.4.30"
-    val springBoot = "2.4.2"
-    val springSecurity = "5.4.2"
-    val hibernate = "5.4.2.Final"
-    val liquibase = "4.2.2"
-    val slf4j = "1.7.30"
-    val logback = "1.2.3"
-    val dockerJavaApi = "3.2.7"
+    const val kotlin = "1.4.30"
+    const val springBoot = "2.4.2"
+    const val springSecurity = "5.4.2"
+    const val hibernate = "5.4.2.Final"
+    const val liquibase = "4.3.0"
+    const val slf4j = "1.7.30"
+    const val logback = "1.2.3"
+    const val dockerJavaApi = "3.2.7"
 }

buildSrc/src/main/kotlin/org/cqfn/save/buildutils/DetektConfiguration.kt

@@ -0,0 +1,33 @@
+/**
+ * Configuration for detekt static analysis
+ */
+
+package org.cqfn.save.buildutils
+
+import io.gitlab.arturbosch.detekt.DetektPlugin
+import io.gitlab.arturbosch.detekt.extensions.DetektExtension
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.apply
+import org.gradle.kotlin.dsl.configure
+
+/**
+ * Configure Detekt for a single project
+ */
+fun Project.configureDetekt() {
+    apply<DetektPlugin>()
+    configure<DetektExtension> {
+        config = rootProject.files("detekt.yml")
+        buildUponDefaultConfig = true
+    }
+}
+
+/**
+ * Register a unified detekt task
+ */
+fun Project.createDetektTask() {
+    tasks.register("detektAll") {
+        allprojects {
+            this@register.dependsOn(tasks.getByName("detekt"))
+        }
+    }
+}

buildSrc/src/main/kotlin/org/cqfn/save/buildutils/DiktatConfiguration.kt

@@ -0,0 +1,38 @@
+/**
+ * Configuration for diktat static analysis
+ */
+
+package org.cqfn.save.buildutils
+
+import org.cqfn.diktat.plugin.gradle.DiktatExtension
+import org.cqfn.diktat.plugin.gradle.DiktatGradlePlugin
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.apply
+import org.gradle.kotlin.dsl.configure
+
+/**
+ * Applies diktat gradle plugin and configures diktat for [this] project
+ */
+fun Project.configureDiktat() {
+    apply<DiktatGradlePlugin>()
+    configure<DiktatExtension> {
+        diktatConfigFile = rootProject.file("diktat-analysis.yml")
+        inputs = files("src/**/*.kt")
+    }
+}
+
+/**
+ * Creates unified tasks to run diktat on all projects
+ */
+fun Project.createDiktatTask() {
+    tasks.register("diktatCheckAll") {
+        allprojects {
+            this@register.dependsOn(tasks.getByName("diktatCheck"))
+        }
+    }
+    tasks.register("diktatFixAll") {
+        allprojects {
+            this@register.dependsOn(tasks.getByName("diktatFix"))
+        }
+    }
+}

buildSrc/src/main/kotlin/org/cqfn/save/buildutils/GitHookInstallation.kt

@@ -0,0 +1,25 @@
+/**
+ * Gradle tasks to install git hooks as a part of the build
+ */
+
+package org.cqfn.save.buildutils
+
+import org.gradle.api.Project
+import org.gradle.api.tasks.Copy
+import org.gradle.kotlin.dsl.register
+
+/**
+ * Task of type [Copy] that install git hooks from directory in repo to .git directory
+ */
+fun Project.installGitHooks() {
+    val installGitHooksTask = tasks.register("installGitHooks", Copy::class) {
+        from(file("$rootDir/.git-hooks"))
+        into(file("$rootDir/.git/hooks"))
+    }
+    // add git hooks installation to build by adding it as a dependency for some common task
+    subprojects.mapNotNull {
+        it.tasks.findByName("build")
+    }
+        .firstOrNull()
+        ?.dependsOn(installGitHooksTask)
+}