Does not compile as a dependency with Nix

[noaccOS]

I am trying to use this as a dependency for a project I am building with Nix, but unfortunately the compilation fails for v0.5.2 (works fine with v0.5.0)

The problem seems to be from the from the vsn function in mix.exs.

This is the log:

error: builder for '/nix/store/498xcjv002wcm4b61lv9ib5fs8cgzf6a-mix-release-metadata-0.0.1.drv' failed with exit code 1;
       last 10 log lines:
       > updateAutotoolsGnuConfigScriptsPhase
       > configuring
       > Error while loading project :typedstruct at /build/deps/typedstruct
       > ** (RuntimeError) Cannot determine application version!
       >     /build/deps/typedstruct/mix.exs:144: TypedStruct.MixProject.vsn/0
       >     /build/deps/typedstruct/mix.exs:8: TypedStruct.MixProject.project/0
       >     (mix 1.15.7) lib/mix/project.ex:938: Mix.Project.get_project_config/1
       >     (mix 1.15.7) lib/mix/project.ex:205: Mix.Project.push_config/2
       >     (mix 1.15.7) lib/mix/project.ex:168: Mix.Project.push/3
       >     (stdlib 5.1.1) lists.erl:1594: :lists.foldl/3
       For full logs, run 'nix log /nix/store/498xcjv002wcm4b61lv9ib5fs8cgzf6a-mix-release-metadata-0.0.1.drv'.

I am fetching the dependencies with fetchMixDeps and using them as parameter for mixRelease as described in the manual

[jozuas]

See nix log /nix/store/498xcjv002wcm4b61lv9ib5fs8cgzf6a-mix-release-metadata-0.0.1.drv for more detailed output.

My guess is that the "cannot determine application version" is coming from the usage of the git executable.

typedstruct/mix.exs

Line 126 in 7a73f89

defp vsn() do

My guess would be that adding git to your build dependencies would fix the problem.

[noaccOS]

See nix log /nix/store/498xcjv002wcm4b61lv9ib5fs8cgzf6a-mix-release-metadata-0.0.1.drv for more detailed output.

It's only showing the mkDerivation steps, but the failure log is the same

My guess would be that adding git to your build dependencies would fix the problem.

The nix fetcher specifically removes the git directory here so even that doesn't work unfortunately

[dluksza]

It looks like the vsn() is evaluated when the dependencies are compiled. With {:typedstruct, "0.5.2"} I'm getting the following error when I try to start iex:

** (Mix) Expected :version to be a valid Version, got: "bbf4846" (see the Version module for more information)

the bbf4846 is my local HEAD. Switching to 0.5.0 gives a different error message:

Unchecked dependencies for environment dev:
* typedstruct (Hex package)
  the dependency does not match the requirement "0.5.0", got "0.5.0-dev+bbf4846-dirty"
** (Mix) Can't continue due to errors on dependencies

but at least that one is evaluated in the context of typedstruct repository.

Would it be possible to release 0.5.3 with a hardcoded version?

[tor-oscar]

This did not compile as a dependency at all for me. Updating how the .hex file is found fixes it. Made a PR #4.

[procmarchal]

I have a similar issue on an umbrella project. When compiling from sub-project, it does not manage to resolve the version.

Unchecked dependencies for environment dev:
* typedstruct (Hex package)
  the dependency does not match the requirement "~> 0.5.2", got "1.4.1-8559-g2c7c3d0dfa"
** (Mix) Can't continue due to errors on dependencies