I want to use GitHub Actions to build my java project and upload it to Bintray when creating a new release.

Now my question is: Is this even possible?

I use gradle and therefore attempted to use the gradle workflow.

The gradle.yml I setup looks like this:

name: Java CI
on:

release:

branches:

- master
jobs:

build:
runs-on: ubuntu-latest

steps:
- uses: actions/checkout@v1
- name: Set up JDK 1.8
  uses: actions/setup-java@v1
  with:
    java-version: 1.8
- name: Build with Gradle
  env:
    bintrayUser: ${{ secrets.bintrayUsername }}
    bintrayApiKey: ${{ secrets.bintrayApiKey }}
  run: ./gradlew bintrayUpload

The ${{ secrets.[…] }} are setup in the Repository’s Secrets setting.

I also use the following build.gradle:

plugins{
    id 'com.jfrog.bintray' version '1.8.4'
    id 'java-library'
    id 'idea'
    id 'maven-publish'
    id 'maven'
}
group = 'com.andre601'

version = '2.3.1'
sourceCompatibility = 1.8
jar{

baseName = 'JavaBotBlockAPI'

}
repositories{

mavenCentral()

jcenter()

}
dependencies{

api group: 'com.squareup.okhttp3', name: 'okhttp', version: '3.11.0'

api group: 'org.json', name: 'json', version: '20180813'

api group: 'org.jetbrains', name: 'annotations', version: '16.0.2'

api(group: 'net.dv8tion', name: 'JDA', version: '4.0.0_45'){

exclude(module: 'opus-java')

}

api group: 'com.github.ben-manes.caffeine', name: 'caffeine', version: '2.7.0'

}
task sourcesJar(type: Jar, dependsOn: classes){

classifier = 'sources'

from sourceSets.main.allSource

}
task javadocJar(type: Jar, dependsOn: javadoc){

classifier = 'javadoc'

from javadoc.destinationDir

}
artifacts{

archives sourcesJar

archives javadocJar

}
bintray{

user = System.getenv("bintrayUser")

key = System.getenv("bintrayApiKey")

publications = ['JavaBotBlockAPIRelease']

pkg{

repo = 'maven'

name = 'JavaBotBlockAPI'

licenses = ['MIT']

vcsUrl = 'https://github.com/botblock/JavaBotBlockAPI'

version{

name = project.version

released = new Date()

}

}

}
publishing{

publications{

JavaBotBlockAPIRelease(MavenPublication){

from components.java

groupId group

artifactId archivesBaseName

version version

artifact javadocJar

artifact sourcesJar

}

}

}

The issue now is that the Action fails at the “Build with Gradle” task with the error "./gradlew: Permission denied

Is there any way I could make this work and have GitHub automatically upload (deploy?) the new files to the bintray sites or would I need to search for an alternative?