add github release mechanism

.gitignore

@@ -8,3 +8,5 @@ settings.xml
 .gradle/
 build/
 out/
+
+secret.gradle

build.gradle

@@ -9,6 +9,7 @@ buildscript {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
         classpath "com.jfrog.bintray.gradle:gradle-bintray-plugin:$gradle_bintray_plugin_version"
+        classpath "com.github.breadmoirai:github-release:$github_release_plugin_version"
     }
 }
 
@@ -20,3 +21,4 @@ repositories {
 }
 
 apply from: "./extensions.gradle"
+apply from: "./github.gradle"

changelog_info_retriever

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+function parse() {
+  version=$1
+
+  read -r
+  while [ -z "`echo $REPLY | grep -e "^#\+ $version"`" ]
+  do
+      read -r
+  done
+
+  read -r
+  while [ -z "`echo $REPLY | grep -e "^#\+"`" ]
+  do
+      echo "$REPLY"
+      read -r
+  done
+}
+
+version=$1
+file=$2
+
+if [ -n "$file" ]; then
+  parse $version < "$file"
+else
+  parse $version
+fi

github_release.gradle

@@ -0,0 +1,27 @@
+private String getCurrentVersionChangelog() {
+    OutputStream changelogDataOS = new ByteArrayOutputStream()
+    exec {
+        standardOutput = changelogDataOS
+        commandLine './changelog_info_retriever', "$library_version", 'CHANGELOG.md'
+    }
+
+    return changelogDataOS.toString().trim()
+}
+
+if (new File(projectDir, "secret.gradle").exists()) {
+    apply from: './secret.gradle'
+    apply plugin: "com.github.breadmoirai.github-release"
+
+    githubRelease {
+        token "${project.property('GITHUB_RELEASE_TOKEN')}"
+
+        owner "InsanusMokrassar"
+        repo "MicroUtils"
+
+        tagName "$library_version"
+        releaseName "$library_version"
+        targetCommitish "$library_version"
+
+        body getCurrentVersionChangelog()
+    }
+}

gradle.properties

@@ -10,6 +10,7 @@ ktor_version=1.4.1
 klockVersion=1.12.1
 
 gradle_bintray_plugin_version=1.8.5
+github_release_plugin_version=2.2.12
 
 uuidVersion=0.2.2