Upcoming 1.9 Mix releases and config

camcaine · April 30, 2019, 4:28pm

Just been reading @josevalim post on the upcoming 1.9 features (What’s new in Elixir – Apr/19 « Plataformatec Blog)

Is anyone else super excited about these??

I definitely am, and it has already cleared up some confusion for me about how to handle config at build/run time, and releases in general. Really happy to see progress here.

jswny · April 30, 2019, 4:58pm

I am SO EXCITED for these particular improvements! Releases and configuration (in general but more specifically for releases) have been really the only two pain points for me in my time using Elixir. I am so glad Jose and the others have decided to make these two points a priority.

I’m looking forward to blog posts and articles covering these new features

LostKobrakai · April 30, 2019, 6:19pm

Basic release handling and the config changes are certainly a big deal. Also the docs for mix release are incredibly well written. I’m just a bit sad my contributions to EEx didn’t make the cut into the blogpost. It’ll allow the use of functions with more than one callback/do/end block allowing to build things like complex components with multiple “slots”.

OvermindDL1 · April 30, 2019, 6:30pm

Ooo really? I’ve been having to do workarounds for that. Awesome!!

phoffer · April 30, 2019, 7:19pm

Is there an estimate on when 1.9 will be released? I’m also incredibly excited for these features and have been reading the docs for them already.

wojtekmach · April 30, 2019, 8:20pm

Elixir minor releases are done twice a year, usually around January and July.

thousandsofthem · May 1, 2019, 10:22am

Can anybody provide an example how it would looks like, replacing regular config for own app and app’s config for 3rd party libs?

Nicd · May 2, 2019, 5:20am

Hmm, can you elaborate with a code block about what you mean? I’m intrigued.

LostKobrakai · May 2, 2019, 5:25am

github.com/elixir-lang/elixir

EEx multiple callbacks with `-> %>…<% end` format

opened 07:21PM - 03 Jan 19 UTC

closed 08:07AM - 04 Jan 19 UTC

LostKobrakai

Kind:Bug App:EEx

### Environment * Elixir & Erlang/OTP versions (elixir --version): 1.7.3 / 21… * Operating system: MacOS X ### Current behavior ```elixir <%= component(ComponentsWeb.GridListView, [list: ["a", "b"]], fn assigns -> %> <div style="display: inline-block"> <h1><%= @item %></h1> </div> <% end, fn assigns -> %> <div style="display: inline-block"> <h1><%= @item %></h1> </div> <% end) %> ``` Having this in an eex template I get an syntax error: `** (SyntaxError) lib/components_web/templates/page/index.html.eex:5: unexpected token: end` ### Expected behavior I'm not sure if this is purposefully not possible, but having the possiblity to define multiple `-> %>…<% end` callbacks for a single function call would enable the possibiltiy to build components with multiple slots to be filled.

The original issue holds some examples.

anelixiruser · May 2, 2019, 7:52am

I’ve been waiting for 1.9 to start looking seriously at releases. Right now I build a docker container with MIX_ENV=prod as part of the build process, then I just mix run in production.

One of the things I’m wondering is what about when I want to use mix in production, e.g. to run migrations, or to import a seeds file. My understanding is that mix isn’t available inside a release.

What should I be doing instead?

jola · May 2, 2019, 8:01am

I haven’t seen any examples of running migrations with the 1.9 releases, but I imagine it would be similar to distillery https://hexdocs.pm/distillery/guides/running_migrations.html. While distillery has some conveniences for this, I haven’t seen anything for 1.9 releases.

But basically setting up the code or a script that runs the same code that the command mix ecto.migrate does (look at the example code I linked).

kwando · May 2, 2019, 3:59pm

Just took mix release for a spin, can’t wait for 1.9 to get out. Well done guys!