Vinicius Monego <monego@posteo.net> writes:

> * gnu/packages/version-control.scm (pre-commit): New variable.
> ---
> Enable tests. Update to 2.6.0.
>
> Language tests require interpreters/compilers and build systems as inputs
> and downloading packages online (e.g. 'go get'), hence disabled.

Makes sense.

[...]
  
> +         (replace 'check
> +           (lambda* (#:key inputs outputs #:allow-other-keys)
> +             (add-installed-pythonpath inputs outputs)
> +             (invoke "pytest" "tests" "-k"
> +                     (string-append
> +                     ;; Disable conda tests.
> +                      "not test_conda_hook"
> +                      " and not test_conda_with_additional_dependencies_hook"
> +                      " and not test_local_conda_additional_dependencies"
> +                      ;; Disable cpan tests.
> +                      " and not test_local_perl_additional_dependencies"
> +                      " and not test_perl_hook"
> +                      ;; Disable Ruby tests.
> +                      " and not test_additional_ruby_dependencies_installed"
> +                      " and not test_install_rbenv"
> +                      " and not test_install_rbenv_with_version"
> +                      " and not test_run_a_ruby_hook"
> +                      " and not test_run_ruby_hook_with_disable_shared_gems"
> +                      " and not test_run_versioned_ruby_hook"
> +                      ;; Disable Cargo tests
> +                      " and not test_additional_rust_cli_dependencies_installed"
> +                      " and not test_additional_rust_lib_dependencies_installed"
> +                      " and not test_local_rust_additional_dependencies"
> +                      " and not test_rust_hook"
> +                      ;; Disable python2 test.
> +                      " and not test_switch_language_versions_doesnt_clobber"
> +                      ;; These tests try to open a network socket.
> +                      " and not test_additional_golang_dependencies_installed"
> +                      " and not test_additional_node_dependencies_installed"
> +                      " and not test_golang_hook"
> +                      " and not test_golang_hook_still_works_when_gobin_is_set"
> +                      " and not test_local_golang_additional_dependencies"
> +                      " and not test_main"
> +                      " and not test_node_hook_with_npm_userconfig_set"
> +                      " and not test_run_a_node_hook"
> +                      " and not test_run_versioned_node_hook"
> +                      ;; Tests failing with a permission error.
> +                      ;; They try to write to the filesystem.
> +                      " and not test_autoupdate_hook_disappearing_repo"
> +                      " and not test_hook_disppearing_repo_raises"
> +                      " and not test_img_conflict"
> +                      " and not test_img_something_unstaged"
> +                      " and not test_installed_from_venv"
> +                      " and not test_too_new_version"
> +                      " and not test_try_repo_uncommitted_changes"
> +                      " and not test_versions_ok"
> +                      ;; This test tries to activate a virtualenv
> +                      " and not test_healthy_venv_creator"
> +                      ;; Fatal error: Not a Git repository.
> +                      " and not test_all_cmds"
> +                      " and not test_try_repo"
> +                      ;; No module named 'pip._internal.cli.main'
> +                      " and not test_additional_dependencies_roll_forward"
> +                      ; Assertion errors
> +                      " and not test_install_existing_hooks_no_overwrite"
> +                      " and not test_uninstall_restores_legacy_hooks"))))

Wooooow, nice work!

I've applied this and the other patches in the series.  Thanks again!  :-)