feat(release): automated github release and changelog creation

.release-it.json

@@ -0,0 +1,22 @@
+{
+  "git": {
+    "requireCommits": true,
+    "commit": false,
+    "push": true,
+    "tag": true
+  },
+
+  "npm": {
+    "publish": false
+  },
+
+  "github": {
+    "release": true
+  },
+
+  "plugins": {
+    "@release-it/conventional-changelog": {
+      "preset": "angular"
+    }
+  }
+}

.travis.yml

@@ -13,6 +13,8 @@ cache:
     - $HOME/.gradle/caches/
     - $HOME/.gradle/wrapper/
 
+script: ./travis_build.sh
+
 deploy:
   - provider: script
     skip_cleanup: true

README.adoc

@@ -18,7 +18,7 @@ Follow the steps described at https://plugins.gradle.org/plugin/com.github.lkish
 Plugin versioning::
 Since `Gatling` v3.0.0 this plugin's major version follows `Gatling` 's
 major version for making things easier.
-  
+
 Source code layout::
 Since `Gatling` v3.0.0 and corresponding plugin version `v3.x.x`
 there were breaking changes introduced for source code layout.
@@ -55,15 +55,15 @@ The plugin defines the following extension properties in the `gatling` closure
 |[source,groovy]
 ----
 ['-server', '-Xmx1G',
-'-XX:+UseG1GC', '-XX:MaxGCPauseMillis=30', 
+'-XX:+UseG1GC', '-XX:MaxGCPauseMillis=30',
 '-XX:G1HeapRegionSize=16m',
-'-XX:InitiatingHeapOccupancyPercent=75', 
-'-XX:+ParallelRefProcEnabled', 
-'-XX:+PerfDisableSharedMem', 
-'-XX:+AggressiveOpts', 
+'-XX:InitiatingHeapOccupancyPercent=75',
+'-XX:+ParallelRefProcEnabled',
+'-XX:+PerfDisableSharedMem',
+'-XX:+AggressiveOpts',
 '-XX:+OptimizeStringConcat',
-'-XX:+HeapDumpOnOutOfMemoryError', 
-'-Djava.net.preferIPv4Stack=true', 
+'-XX:+HeapDumpOnOutOfMemoryError',
+'-Djava.net.preferIPv4Stack=true',
 '-Djava.net.preferIPv6Addresses=false']
 ----
 | Additional arguments passed to JVM when executing `Gatling` simulations
@@ -225,6 +225,25 @@ Run single simulation implemented in `com.project.simu.MySimulation` class::
 +
   $ gradle gatlingRun-com.project.simu.MySimulation
 
+== Release a new version
+
+. NodeJS and Npm must be installed.
+. Create `GitHub` https://github.com/settings/tokens/new[access token]. Only `repo` scope is required.
+. Install https://github.com/release-it/release-it[release-it]
++
+  $ npm install -g release-it @release-it/conventional-changelog
+
+. Run
++
+[source, bash]
+----
+$ env GITHUB_TOKEN=${....} release-it --ci patch <1> <2>
+----
+<1> paste token value from step *2*
+<2> can be `patch`, `minor`, `major`
+
+. Release script will create and push tag to `GitHub`, create a release with a changelog in `GitHub` and publish plugin to `Gradle` plugin portal.
+
 == Troubleshooting and known issues
 
 === Spring Boot and Netty version
@@ -233,7 +252,7 @@ https://github.com/lkishalmi/gradle-gatling-plugin/issues/53[Original issue]
 
 Caused by `io.spring.dependency-management` plugin and Spring platform BOM files.
 The dependency management plugin ensures that all declared dependencies have exactly the same versions as declared in BOM.
-Since `Spring Boot` declares own `Netty` version (e.g. `4.1.22.Final`) - this version is applied globally 
+Since `Spring Boot` declares own `Netty` version (e.g. `4.1.22.Final`) - this version is applied globally
 for all the configurations of the `Gradle` project, even if configuration doesn't use `Spring`.
 
 There's 2 ways of solving the problem, depending on the actual usage of `Netty` in the project

travis_build.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+set -ev
+
+if [ -z "${TRAVIS_TAG}" ]; then
+  ./gradlew check
+fi