How to get the install path of ImageMagick using Chocolately on GitHub Actions/CI?

I had the same problem on github actions. The solution turned out to be using refreshenv as you might expect, but with a small caveat: You have to call it within the same step where you want to use the installed program, and be sure to invoke it via call, e.g.:

  - run: choco install -y imagemagick
  - name: Build icons
    shell: cmd
    run: |
      call refreshenv
      magick ...
      magick ...

If you have multiple steps that want to reuse the PATH configuration, you can call refreshenv once and export it as follows:

  - run: choco install -y imagemagick
  - name: Set PATH
    shell: cmd
    run: |
      call refreshenv
      echo ::set-env name=PATH::%PATH%
  - run: magick
  - run: magick

Finally, if you're interested in the installation path itself, you can resort to trickery such as this:

  - run: choco install -y imagemagick

  - name: Extract path
    id: getpath
    shell: cmd
    run: |
      call refreshenv
      for /f "delims=" %%G in ('where magick') do (
          echo ::set-env name=MAGICKPATH::%%~fG
          echo ::set-output name=magick::%%~fG
      )

  - run: echo $env:MAGICKPATH
  - run: echo ${{ steps.getpath.outputs.magick }}

Instead of getting the install directory you may be able to set it, even with the free version.

According to Chocolately's documentation you can change the installation directory ... even in Chocolatey open source.

Different installer types (eg. MSI, NSIS...) have different methods to receive what Chocolately refers to as "installation arguments". In the free version you need to specify these natively for each installer type (using the -ia option) whereas the paid version provides a streamlined "ubiquitous" method.