This OpenEmbedded layer is intended to be used as an extension of meta-nodejs layer to provide community contributed package recipes and Bitbake helper classes.

meta-nodejs provides latest Node.js runtime package recipes for current, long-term support, maintenance and legacy release lines.

Community contributions to this layer are welcome!

Layer installation varies depending on your OpenEmbedded distribution. These instructions are generic.

1. Fetch meta-nodejs-contrib layer from https://github.com/imyller/meta-nodejs-contrib.git

2. Add meta-nodejs-contrib layer to EXTRALAYERS in bblayers.conf. For example:

   	EXTRALAYERS +=" \
   		${TOPDIR}/sources/meta-nodejs-contrib \
   	"

meta-nodejs-contrib depends on following layers:

• openembedded-core
• meta-nodejs

meta-nodejs-contrib layer adds few Node.js related helper classes.

grunt can build a package that is based on grunt. First it will do an npm install during the do_configure task to make sure all dependencies are available. Then it runs grunt with the default target during the do_compile task.

It defines the following functions:

• oe_rungrunt: call grunt

• NPM_INSTALL_FLAGS: Extra command line arguments for npm calls made in do_configure task
• GRUNT_TARGET: The grunt target to run. (default: "")

gulp can build a package that is based on gulp. First it will do an npm install during the do_configure task to make sure all dependencies are available. Then it runs gulp with the default target during the do_compile task.

The project being built should have a devDependency on gulp in its package.json.

It defines the following functions:

• oe_rungulp: call gulp

• NPM_INSTALL_FLAGS: Extra command line arguments for npm calls made in do_configure task
• GULP_TASKS: The gulp task(s) to run. (default: "")
• GULP_OPTIONS: Extra options to pass to gulp (e.g. --production). (default: "")

bower is a package manager for web applications front-end dependencies: bower.io

bower class defines following functions:

• oe_runbower: call bower command line utility

• BOWER: bower command line utility (default: bower)
• BOWER_FLAGS: Extra command line arguments for bower calls made by oe_runbower()
• BOWER_REGISTRY: override Bower registry URL

Suppose a web application has front-end dependencies which are listed in the file bower.json. In this case the web application recipe can auto-install all those dependencies during yocto build by inheriting bower-install class.

bower-install class inherits bower class and adds following build tasks:

• bower_install: runs bower install in source directory after do_npm_dedupe and before do_install

Note that front-end dependencies are auto-installed into build directory. They have to be explicitely copied into target image in do_install or do_install_append. Here is a simple example of web application recipe with nodejs and bower dependencies:

SUMMARY = "simple web application with JS front-end dependencies listed in bower.json"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=4d92cd373abda3937c2bc47fbc49d690"

SRCREV = "${AUTOREV}"

PR = "r0"
PV = "0.0.1+git${SRCPV}"

SRC_URI = "git://webapp.example.org/test.git;branch=master;protocol=ssh"

inherit bower-install

S = "${WORKDIR}/git"

do_install () {
	install -d ${D}/www/test/public
	cp -r ${S}/bower_components ${D}/www/test/public/
}

• BOWER_INSTALL: Parameters for bower install command (such as specific package names)
• BOWER_INSTALL_FLAGS: Extra command line arguments for bower calls made in bower_install task

typings is a TypeScript definition manager: typings

typings class defines following functions:

• oe_runtypings: call typings command line utility

• TYPINGS: bower command line utility (default: typings)
• TYPINGS_FLAGS: Extra command line arguments for typings calls made by oe_runtypings()

Suppose a web application has TypeScript dependencies which are listed in the file typings.json. In this case the web application recipe can auto-install all those dependencies during yocto build by inheriting typings-install class.

typings-install class inherits typings class and adds following build tasks:

• typings_install: runs typings install in source directory after do_configure and before do_compile

• TYPINGS_INSTALL: Parameters for typings install command (such as specific package names)
• TYPINGS_INSTALL_FLAGS: Extra command line arguments for typings calls made in typings_install task