How to start Travis CI deploy only when tag name matches a regex

Question

I want to kick off an npm deployment when a tag, that looks like a semantic version, is pushed, e.g. v1.2.3. I see that the tag name is in the TRAVIS_TAG environment variable and that I can specify an on: condition, which "can be any Bash condition". I have no idea what to write here and how to debug it.

- provider: npm on: tags: true all_branches: true condition: ???

Ideally, I would like to not bother with Bash at all - I would like the condition to execute a Node.js script and then decide whether to deploy or not depending on the node exit code. How can I do that?

eshirazi · Answer 1 · 2014-07-17T15:24:41.160

21

Simplest way would still be with bash, this example will deploy only if tag name matches the regex "release.*":

on:
    tags: true
    all_branches: true
    condition: "$TRAVIS_TAG =~ ^release.*$"

Check out this link for more info on travis environment variables: http://docs.travis-ci.com/user/ci-environment/#Environment-variables

edited Jul 17 '14 at 15:24

answered Jul 17 '14 at 11:58

eshirazi

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Ho-hum, can you give me an example of writing a condition that delegates to a `node` script? – Stefan Dragnev Sep 11 '15 at 20:50
3

This throws an error "[x] syntax error: (): found unknown escape character while parsing a quoted scalar at line .... ". – 500865 Jun 07 '17 at 22:38
Double quote is giving the problem "unknown escape character". Remove double quotes and it should work. – ruhong Apr 23 '19 at 05:47
@eshirazi How to test these changes are working with travis without pushing a tag? – lakshmiravali rimmalapudi Aug 02 '21 at 08:05

score 6 · Answer 2 · edited May 30 '18 at 19:22

6

eshizari's answer didn't work for me. This is the approach that I'm using instead:

on:
  all_branches: true
  condition: $TRAVIS_TAG =~ ^v[0-9]+\.[0-9]+\.[0-9]+

edited May 30 '18 at 19:22

Brad Larson

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answered Mar 30 '17 at 22:39

pomber

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How to start Travis CI deploy only when tag name matches a regex

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