Unexplained ruby version and error handling

slim · November 20, 2020, 3:30pm

wai-accessibility-principles.netlify.app
Deploy preview #34 - full build from empty chache

11:06:25 AM: Build ready to start
11:06:27 AM: build-image version: 8e315e54bc4032a32e73290be556cde4f8348c12
11:06:27 AM: build-image tag: v2.8.2
11:06:27 AM: buildbot version: 45cd00068410d70db72c9672cdd014995488e12a
11:06:27 AM: No cache source specified, skip fetching cache
11:06:27 AM: Starting to prepare the repo for build
11:06:27 AM: No cached dependencies found. Cloning fresh repo
11:06:27 AM: git clone https://github.com/w3c/wai-accessibility-principles
11:06:28 AM: Preparing Git Reference pull/34/head
11:06:29 AM: Found netlify.toml. Overriding site configuration
11:06:29 AM: Different publish path detected, going to use the one specified in the toml file: '_site' versus '_site/' in the site
11:06:29 AM: Different build command detected, going to use the one specified in the toml file: 'bundle exec jekyll build --config '_config.yml,_config_staging.yml'' versus 'bundle exec jekyll build --config "_config.yml,_config_staging.yml"' in the site
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11:07:21 AM: Ruby Sass has reached end-of-life and should no longer be used.
11:07:21 AM: * If you use Sass as a command-line tool, we recommend using Dart Sass, the new
11:07:21 AM:   primary implementation: https://sass-lang.com/install
11:07:21 AM: * If you use Sass as a plug-in for a Ruby web framework, we recommend using the
11:07:21 AM:   sassc gem: https://github.com/sass/sassc-ruby#readme
11:07:21 AM: * For more details, please refer to the Sass blog:
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11:07:27 AM: export PATH="/opt/buildhome/.gimme_cache/versions/go1.10.linux.amd64/bin:${PATH}";
11:07:27 AM: go version >&2;
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11:07:29 AM:             Source: /opt/build/repo
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11:07:32 AM:                     done in 3.161 seconds.
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github.com

w3c/wai-accessibility-principles/blob/master/netlify.toml

[build]
command = "git submodule update --init --remote && bundle exec jekyll build --config '_config.yml,_config_staging.yml'"
publish = "_site"

[build.environment]
RUBY_VERSION = "2.6.2" 

[[redirects]]
  from = "/"
  to = "/fundamentals/accessibility-principles/"


[dev]
publish = "_site"
framework = "#static"

No env vars set

I’ve 2 questions:

why is ruby set to 2.3.6 when I can find nothing specifying it in env vars. Your docs for the image (Ubuntu Trusty 14.04 legacy) say default version is 2.6.2. How can I find out?

11:06:34 AM: Attempting ruby version 2.3.6, read from environment
11:06:36 AM: Using ruby version 2.3.6

When I build locally (both on mac and ubuntu) the build fails like this but deploy build doesn’t. How can I find out why? The file does exist but is a link to the skipped link, but under the project root not tmp.

WARNING: skipped symlink '/tmp/jekyll-remote-theme-20201120-22354-5hojr2/_data/lang.json'.
WARNING: skipped symlink '/tmp/jekyll-remote-theme-20201120-22354-5hojr2/_data/techniques.yml'.
WARNING: skipped symlink '/tmp/jekyll-remote-theme-20201120-22354-5hojr2/_data/translations.yml'.
WARNING: skipped symlink '/tmp/jekyll-remote-theme-20201120-22354-5hojr2/_data/wcag.yml'.
bundler: failed to load command: jekyll (/usr/local/bin/jekyll)
Errno::ENOENT: No such file or directory @ rb_sysopen - /home/steve/wai-accessibility-principles/_data/translations.yml

Do you provide a container image we can use for local builds so we get as close as possible to your environment?

Thanks

jonsully · November 20, 2020, 3:56pm

Hey @slim

FYI you can set and control the ruby version used in the builds - This link should automatically scroll you down to the “Ruby” section, but tl;dr: you can either set a RUBY_VERSION env var or use a .ruby-version file to specify your version.

As for the failed build locally, I don’t think Netlify offers any pre-made clonable images per se… but what build command are you running? And did you pull down all the dependencies prior to building by running bundle? Similar to how you have to pull down js dependencies prior to running by running yarn or npm install (depending on which package manager you prefer… in this case Ruby only has one, bundle)

–
Jon

slim · November 20, 2020, 5:06pm

Thanks john, it seems I was not clear.

I can see neither of those options being used, yet the ruby version is less than that documented as the default one.

But I just thought I can try setting it explicitly in case the docs are incorrect

build command are you running?

see above

And did you pull down all the dependencies prior to building

no as bundle install is run automatically during image initialisation and then the gems are cached (I empty the cache to get a full install).

as an aside I thought it it would be useful to be able to disable the automatic bundle install and caching so we can run bundle install --deployment. That would be slower but more deterministic. In my case though I have not gemfile.lock which that option requires

The point with the error is it happens on local installs but NOT in the deployment build. Or if it does happen it is ignored. I want visibility into why.

jonsully · November 20, 2020, 5:16pm

Hey @slim

Well I’m not sure what’s causing your particular site to default to an older version of Ruby but if you need a newer version, you can utilize the env var or file. I checked both build images, the source code for either, and a couple of Jekyll sites I run that don’t specify either a file or env var, but everything points toward running the normal default. Is there an open source repo you could share? I can take a peek through that and see if anything looks awry if you’d like.

Yes, this is what I was getting at - apologies if that wasn’t clear. The Netlify Build images will automatically run bundle install to install dependencies before running your build command, but if you’re not running bundle install locally your build will definitely fail locally. I’m not actually concerned about Netlify’s build because it appears to be in working order I want to make sure you’re installing dep’s locally

–
Jon

slim · November 20, 2020, 5:23pm

Thanks as always Jon, for going the extra mile

The repo is - Steve deployment fix by SteveALee · Pull Request #34 · w3c/wai-accessibility-principles · GitHub
and the env settings in the control panel is definitely empty.

As for bundle - yes - is installed locally. Else would not have got that far. It looks like the remote theme gem is failing to install something access via a symblink but I’m not yet sure of expected behaviour here.

Is there some option in netlify to force all build errors to fail that could be off by default. Seems a long shot but…

slim · November 20, 2020, 6:05pm

@jonsully It looks like a git submodules issues Locally the submodules are not getting handled but the netlify build does.

I need to explore that - thanks for offering to help

Steve

slim · November 20, 2020, 6:16pm

for any others reading this this might help the build error was due to the repo using git submodules and locally I did not check out using --recursive. I guess netlify does, though it doesn’t log the flags used.

So the only question is why ruby version is so low but I don;t need an answer.

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Unexplained ruby version and error handling

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