Gradle plugin for Grain

Grain Gradle Plugin

Gradle plugin for Grain framework. Grain is a general purpose static site generator which allows to build websites of any size and complexity, like project and documentation sites or custom blog resources. Grain supports Markdown, RST and AsciiDoc markup rendering, page templates with embedded Groovy code, resource compression and minification, code highlighting using Python Pygments and more.

The plugin allows to create and manage your static website using Gradle, thus making it much easier to create sites for your existing Gradle projects.

Getting Started

To use in Gradle 2.1 and later:

plugins {
  id "com.sysgears.grain" version "0.2.3"

repositories {

To use in earlier versions of Gradle:

buildscript {
  repositories {
    maven {
      url ""
  dependencies {
    classpath ""

apply plugin: "com.sysgears.grain"

repositories {

Then put a Grain site sources to the src/site directory. For this purpose you can use one of the Grain themes. If you have already downloaded a Grain theme, simply copy its files to the src/site. Alternatively, you may install a theme by running Gradle task of appropriate type. Just copy the following to your build.gradle script:

task grainInstall(type: com.sysgears.grain.gradle.GrainInstallTask) {
    theme = 'template' // theme to install, can be 'template', 'octopress', etc.
    version = '0.4.2'  // theme version

If the theme argument isn't specified, Theme Template will be installed by default, and if you don't set the version, the latest available version will be fetched.

As you have added the sources, you can execute the following Gradle tasks:

  • gradle grainPreview - launches your website in a preview mode
  • gradle grainGenerate - generates all the website files to the destination directory (see filesystem layout)
  • gradle grainDeploy - deploys the resulting files (see deployment configuration)
  • gradle grainClean - cleans the site destination and target directories


Optionally, you can change the site sources directory by specifying the grain.projectDir property:

grain {
    projectDir = '' // relative path to the site sources, default to 'src/site'

Also, you can set a specific Grain version, just be sure that it is compatible with your theme:

grain {
    version = '0.6.5' // the Grain version, must be compatible with the theme version

To use the latest Grain snapshot, you should define the Sonatype snapshots repository first:

repositories {
    maven {
        url ''

grain {
    version = '0.7.0-SNAPSHOT'

Advanced Usage

You can run your own Grain commands from the build script. For example, if you have the compress command to gzip site files before deploying, you can simply execute it by the following GrainTask:

task(grainCompress, type: com.sysgears.grain.gradle.GrainTask) {
   command = 'compress' // the name of the custom command
   // arguments = []    // the arguments to pass to the command
   // jvmArguments = [] // JVM arguments to launch Grain process

For further information please visit Grain project website.


Any person or company wanting to contribute to Grain Gradle plugin should follow the following rules in order to their contribution being accepted.

Sign your Work

We require that all contributors "sign-off" on their commits. This certifies that the contribution is your original work, or you have rights to submit it under the same license, or a compatible license.

Any contribution which contains commits that are not Signed-Off will not be accepted.

To sign off on a commit you simply use the --signoff (or -s) option when committing your changes:

$ git commit -s -m "Adding a new widget driver for cogs."

This will append the following to your commit message:

Signed-off-by: Your Name <>

By doing this you certify the below:

Developer's Certificate of Origin 1.1

If you wish to add the signoff to the commit message on your every commit without the need to specify -s or --signoff, rename .git/hooks/commit-msg.sample to .git/hooks/commit-msg and uncomment the lines:

SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"

Developer's Certificate of Origin

To help track the author of a patch as well as the submission chain, and be clear that the developer has authority to submit a patch for inclusion into this project please sign off your work. The sign off certifies the following:

Developer's Certificate of Origin 1.1

By making a contribution to the project, I certify that:

(a) The contribution was created in whole or in part by me and I
    have the right to submit it under the open source license
    indicated in the file; or

(b) The contribution is based upon previous work that, to the best
    of my knowledge, is covered under an appropriate open source
    license and I have the right under that license to submit that
    work with modifications, whether created in whole or in part
    by me, under the same open source license (unless I am
    permitted to submit under a different license), as indicated
    in the file; or

(c) The contribution was provided directly to me by some other
    person who certified (a), (b) or (c) and I have not modified

(d) I understand and agree that this project and the contribution
    are public and that a record of the contribution (including all
    personal information I submit with it, including my sign-off) is
    maintained indefinitely and may be redistributed consistent with
    this project or the open source license(s) involved.

(e) I hereby grant to the project, SysGears, LLC and its successors;
    and recipients of software distributed by the Project a perpetual,
    worldwide, non-exclusive, no-charge, royalty-free, irrevocable
    copyright license to reproduce, modify, prepare derivative works of,
    publicly display, publicly perform, sublicense, and distribute this
    contribution and such modifications and derivative works consistent
    with this Project, the open source license indicated in the previous
    work or other appropriate open source license specified by the Project
    and approved by the Open Source Initiative(OSI)


Grain Gradle plugin is licensed under the terms of the Apache License, Version 2.0.