Default Travis build does not allow changing Node version

[humanmade]

Default Travis build does not allow changing Node version

[kadamwhite]

On the project that raised my inquiry into this, I was able to accomplish what I wanted with:

install:
  - nvm install v12
  - nvm use v12

that sets up node 12 on a PHP container, so I can run my jobs without worrying about matrix or jobs.

Aside: Is the key node or node_js? On another project, node_js: 12 didn't seem to do anything if I'd previously declared the language as php.

Another aside: When I look in Travis, I see this:

Not sure if that's relevant at all.

[roborourke]

Pretty sure the key is node_js but I think we maybe need to add that nvm step to the default config file in the before_install step.

The text "key matrix is an alias for jobs, using jobs" kinda suggests the opposite of what @tfrommen experienced with matrix overriding jobs which is weird. Maybe it's to do with the way the files are merged.

I'll do some proper testing tomorrow with the updated altis.yml on #85

[roborourke]

Fwiw I think you'd have to define it as:

node_js:
  - 12

[tfrommen]

The text "key matrix is an alias for jobs, using jobs" kinda suggests the opposite of what @tfrommen experienced with matrix overriding jobs which is weird. Maybe it's to do with the way the files are merged.

In a failing build, opening up the (collapsed) Build config validation gives this:

[roborourke]

Aha, thanks for the extra context @tfrommen!