Running setup-ocaml locally with nektos/act

[anton-trunov]

Hi, I'm trying to use setup-ocaml with https://github.com/nektos/act which lets me run GH Actions locally. However, I get the following error message for the "Retrieve the opam cache" part:

::error::Parameter token or opts.auth is required

Here is the full output:

$ act
[Build/build-1] 🧪  Matrix: map[ocaml-compiler:4.12.0 os:ubuntu-20.04]
[Build/build-1] 🚀  Start image=catthehacker/ubuntu:act-20.04
[Build/build-1]   🐳  docker run image=catthehacker/ubuntu:act-20.04 platform= entrypoint=["/usr/bin/tail" "-f" "/dev/null"] cmd=[]
[Build/build-1]   🐳  docker exec cmd=[mkdir -m 0777 -p /var/run/act] user=root
[Build/build-1]   🐳  docker cp src=/Users/anton/zilliqa/scilla-tla/. dst=/Users/anton/zilliqa/scilla-tla
[Build/build-1]   🐳  docker exec cmd=[mkdir -p /Users/anton/zilliqa/scilla-tla] user=
[Build/build-1] ⭐  Run Checkout code
[Build/build-1]   ✅  Success - Checkout code
[Build/build-1] ⭐  Run Use OCaml ${{ matrix.ocaml-version }}
INFO[0001]   ☁  git clone 'https://github.com/ocaml/setup-ocaml' # ref=v2
[Build/build-1]   🐳  docker cp src=/Users/anton/.cache/act/ocaml-setup-ocaml@v2/ dst=/var/run/act/actions/ocaml-setup-ocaml@v2/
[Build/build-1]   🐳  docker exec cmd=[mkdir -p /var/run/act/actions/ocaml-setup-ocaml@v2/] user=
[Build/build-1]   🐳  docker exec cmd=[node /var/run/act/actions/ocaml-setup-ocaml@v2/dist/index.js] user=
[Build/build-1]   ❓  ::group::Retrieve the opam cache
[Build/build-1]   ❗  ::error::Parameter token or opts.auth is required
[Build/build-1]   ❌  Failure - Use OCaml ${{ matrix.ocaml-version }}
Error: exit with `FAILURE`: 1

PS Sorry if this is not the right place for this issue.

[smorimoto]

act does not seem to provide github.token. Namely, you have to generate a personal access token and pass it as a github-token input.

[anton-trunov]

@smorimoto Indeed, I was missing that, thanks. Now I get a different error message:

act -s GITHUB_TOKEN=<my_personal_token>
[Build/build] 🧪  Matrix: map[ocaml-compiler:4.12.0 os:ubuntu-20.04]
[Build/build] 🚀  Start image=catthehacker/ubuntu:act-20.04
[Build/build]   🐳  docker run image=catthehacker/ubuntu:act-20.04 platform= entrypoint=["/usr/bin/tail" "-f" "/dev/null"] cmd=[]
[Build/build]   🐳  docker exec cmd=[mkdir -m 0777 -p /var/run/act] user=root
[Build/build]   🐳  docker cp src=/Users/anton/zilliqa/scilla-tla/. dst=/Users/anton/zilliqa/scilla-tla
[Build/build]   🐳  docker exec cmd=[mkdir -p /Users/anton/zilliqa/scilla-tla] user=
[Build/build] ⭐  Run Checkout code
[Build/build]   ✅  Success - Checkout code
[Build/build] ⭐  Run Use OCaml ${{ matrix.ocaml-version }}
INFO[0002]   ☁  git clone 'https://github.com/ocaml/setup-ocaml' # ref=v2
[Build/build]   🐳  docker cp src=/Users/anton/.cache/act/ocaml-setup-ocaml@v2/ dst=/var/run/act/actions/ocaml-setup-ocaml@v2/
[Build/build]   🐳  docker exec cmd=[mkdir -p /var/run/act/actions/ocaml-setup-ocaml@v2/] user=
[Build/build]   🐳  docker exec cmd=[node /var/run/act/actions/ocaml-setup-ocaml@v2/dist/index.js] user=
[Build/build]   ❓  ::group::Retrieve the opam cache
[Build/build]   💬  ::debug::Resolved Keys:
[Build/build]   💬  ::debug::["v1-setup-ocaml-2.0.0-beta3-opam-2.1.0-linux-20.04-x86_64-ocaml_base_compiler_4_12_0-2021-34","v1-setup-ocaml-2.0.0-beta3-opam-2.1.0-linux-20.04-x86_64-ocaml_base_compiler_4_12_0-2021-34"]
[Build/build]   💬  ::debug::Checking zstd --version
[Build/build]   💬  ::debug::*** zstd command line interface 64-bits v1.4.4, by Yann Collet ***
[Build/build]   💬  ::debug::getCacheEntry - Attempt 1 of 2 failed with error: Cache Service Url not found, unable to restore cache.
[Build/build]   💬  ::debug::getCacheEntry - Attempt 2 of 2 failed with error: Cache Service Url not found, unable to restore cache.
[Build/build]   ❗  ::error::getCacheEntry failed: Cache Service Url not found, unable to restore cache.
[Build/build]   ❌  Failure - Use OCaml ${{ matrix.ocaml-version }}
Error: exit with `FAILURE`: 1

Any ideas why this is happening? Thanks in advance!

[smorimoto]

As far as I read the error, it seems impossible to use @actions/cache on act. At this time, setup-ocaml does not care about such cases anyway.

[smorimoto]

This seems to be a related issue: nektos/act#329

[anton-trunov]

Thank you for the pointer!

[christophe-riolo]

Hi ! I was currently trying to use Act to fix my github action and I ran into this very issue. The recommended way to fix the caching issue as per nektos/act#285 (comment) is to disable the cache actions, simply. But I do not see an option for this in setup-ocaml. Would it make sense to have an option to disable caching altogether (Gygwin, opam etc.) ?

      - name: Use OCaml ${{ matrix.ocaml-compiler }}
        uses: ocaml/setup-ocaml@v2
        with:
          ocaml-compiler: ${{ matrix.ocaml-compiler }}
          disable-cache: true