How to set env vars on GitHub Actions for a Windows release?

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Background

I am trying to get a Github Action working with Windows and Bakeware because I am trying to create a release using it.

However, I am having issues with the environment variables.

Code

In Bakeware’s setup page it is mentioned that we have to set the MAKE and CC environment variables:

In my Github Action, that is exactly what I do (I think):

name: build env: MIX_ENV: test GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} on: push: branches: [ master ] pull_request: branches: [ master ] jobs: build: name: Build on Windows runs-on: windows-2019 env: CC: gcc MAKE: make steps: - uses: actions/checkout@v2 - uses: erlef/setup-beam@v1 with: elixir-version: '1.13.x' # Define the elixir version [required] otp-version: '24.2.x' # Define the OTP version [required] - name: Install choco shell: powershell run: | Set-ExecutionPolicy -ExecutionPolicy Bypass Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1')) - name: Install bakeware dependencies shell: powershell run: choco install -y zstandard make mingw - name: Install Dependencies shell: powershell run: mix deps.get - name: Run credo code analyser shell: powershell run: mix credo --strict

I am even using powershell to do it (even though I am not really sure if this is needed).

Problem

However my GitHub Actions code comes back with this error:

==> bakeware mkdir "d:/a/market_manager/market_manager/_build/test/lib/bakeware/obj" mkdir "d:/a/market_manager/market_manager/_build/test/lib/bakeware/launcher" mkdir "d:/a/market_manager/market_manager/_build/test/lib/bakeware/obj/zstd/lib/decompress" mkdir: cannot create directory 'd:/a/market_manager/market_manager/_build/test/lib/bakeware/obj/zstd/lib/decompress': No such file or directory make: *** [Makefile:70: d:/a/market_manager/market_manager/_build/test/lib/bakeware/obj/zstd/lib/decompress] Error 1 could not compile dependency :bakeware, "mix compile" failed. Errors may have been logged above. You can recompile this dependency with "mix deps.compile bakeware", update it with "mix deps.update bakeware" or clean it with "mix deps.clean bakeware" ** (Mix) Could not compile with "make" (exit status: 2).

It says it cannot compile with make.

Question

I have tried copy/pasting the section:

env: CC: gcc MAKE: make

To every section in that file I could think of, but I always end up with the same issue.

What am I doing wrong?

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Answer

The environment vars, in this case, were being correctly created and set. The problem was more deep, it was related to the library itself not being able to create needed folders.

Because the make tool used by the library needed these folders, the tool crashed itself and reported as such, thus making me believe there was an issue with my environmental setup since I was getting the error:

 (Mix) Could not compile with "make" (exit status: 2).

In reality however, this issue was a bug in the library, an issue that is already fixed in master:

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