WDL - Programming language

home code edit

WDL, aka Workflow Description Language, is an open source programming language created in 2012.

#469on PLDB

12Years Old

888Repos

Download source code:

git clone https://github.com/openwdl/wdl

Workflow Description Language - Specification and Implementations

WDL website
WDL is developed on GitHub and has 550 stars
There are at least 888 WDL repos on GitHub
WDL on Twitter
The Google BigQuery Public Dataset GitHub snapshot shows 23 users using WDL in 30 repos on GitHub
GitHub supports syntax highlighting for WDL
openwdl.org was registered in 2017
Read more about WDL on the web: 1.

Example from Linguist:

# Sample originally from https://github.com/broadinstitute/centaur

task hello {
  String addressee
  command {
    echo "Hello ${addressee}!"
  }
  output {
    String salutation = read_string(stdout())
  }
  runtime {
    docker: "ubuntu@sha256:71cd81252a3563a03ad8daee81047b62ab5d892ebbfbf71cf53415f29c130950"
  }
}

workflow wf_hello {
  call hello
  output {
     hello.salutation
  }
}

Language features

Feature	Supported	Token	Example
Comments	✓		# A comment
Line Comments	✓	#	# A comment
Semantic Indentation	X