a.shaw
When running Dialyzer in CI, we use the --format github option. This formats errors like:
::warning file=lib/file.ex,line=19,title=no_return::Function fail/0 has no local return.
This allows GitHub Actions to parse the errors, and ‘comment’ them inline in Github:
I’m wondering if the Elixir compiler supports this option (I couldn’t find such an option in the mix docs however), and if not, where the relevant code in the Elixir compiler which emits warnings/errors is located if I wanted to consider contributing this myself.
Thanks!
Where Next?
Trending in Questions
Other Trending Topics
Latest on Elixir Forum
Sponsor Spotlight
Practical resources that improve the lives of professional developers.
Categories:
Sub Categories:
Forums
Popular Tags
- #ecto
- #liveview
- #troubleshooting
- #learning-elixir
- #library
- #deployment
- #erlang
- #testing
- #genserver
- #mix
- #absinthe
- #remote-other
- #otp
- #plug
- #how-to-question
- #macros
- #postgres
- #elixirconf
- #channels
- #exunit
- #discussion
- #code-sync
- #podcasts
- #javascript
- #onsite
- #dialyzer
- #docker
- #authentication
- #umbrella
- #full-time-contract
- #podcasts-by-brainlid
- #ecto-query
- #elixirconf-us
- #blog-post
- #ai
- #elixir-ls
- #phoenix_html
- #iex
- #graphql
- #genstage
- #websockets
- #supervisor
- #advent-of-code
- #distillery
- #processes
- #api
- #forms
- #hex
- #security
- #metaprogramming
Our Sponsors
Supporting innovation across the BEAM ecosystem.
We build reliable cloud platforms for business-critical systems.
Catch errors, track performance, monitor hosts and more.
Error tracking, logs, uptime, and Just Enough APM. Built for developers.
Elixir, Erlang & BEAM conferences from Code Sync - join us in 2026!
Practical resources that improve the lives of professional developers.
**Building the future of software with AI, trust, and human connection.**
The deployment platform built for Elixir: PaaS ease, VPS control.
The team behind Membrane, Popcorn, LiveDebugger. Available for hire.
Courses that'll move you from confusion to "Aha, now I get it!"
Showing Posts 1 to 2- Show Best Posts
- Show All (oldest first)
- Show All (newest first)
gmile
Looks like it’s located here:
https://github.com/jeremyjh/dialyxir/blob/08dab7a26d2552777916ce48dfbba19c1abdf25f/lib/mix/tasks/dialyzer.ex#L25
a.shaw
Thanks! This is helpful to see how Dialyzer implements it. I wasn’t clear in my message unfortunately - I am interested to see where this could be added to the compiler itself.