Move to Travis CI

.travis.yml

@@ -0,0 +1,18 @@
+dist: trusty
+sudo: required
+
+services:
+  - docker
+
+language: java
+
+jdk:
+  - oraclejdk8
+
+before_script:
+  - docker pull guigolab/chip-nf@sha256:f912436e8791a9d1f9cadf76099f760151435a43d7873712ee692cb2b0f8947e
+  - curl -fsSL get.nextflow.io | bash && mv nextflow $HOME/bin
+
+script:
+  - ./ci run -profile circleci && ./ci validate
+

README.adoc

@@ -3,11 +3,11 @@
 :nextflow-quickstart: http://www.nextflow.io/docs/latest/getstarted.html#get-started
 :macs2-outfiles: https://github.com/taoliu/MACS#output-files
 :pvalue: pass:q[[red]#___-log_10(P)___#]
-:circle-shield: https://circleci.com/gh/guigolab/chip-nf.svg?style=shield
 :nf-shield: https://img.shields.io/badge/nextflow-%E2%89%A50.23.1-blue.svg
+:travis-badge: https://travis-ci.org/guigolab/chip-nf.svg?branch=master
 
 image:{nf-shield}["Nextflow", link="https://nextflow.io", window="_blank"]
-image:{circle-shield}["CircleCI status", link="https://circleci.com/gh/guigolab/chip-nf", window="_blank"]
+image:{travis-badge}["Build Status", link="https://travis-ci.org/guigolab/chip-nf"]
 
 A {nextflow}[Nextflow^] pipeline for processing ChIP-seq data.