Cannot build mozc-emacs-helper on GitHub Actions

[kai2nenobu]

https://github.com/kai2nenobu/my-chocolatey-packages/actions/runs/201917023

windows-2019 上でビルドしてみたけど、ビルドエラーになった。スタックトレースは以下のようになってる。

Traceback (most recent call last):
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\gyp_main.py", line 16, in <module>
    sys.exit(gyp.script_main())
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\pylib\gyp\__init__.py", line 545, in script_main
    return main(sys.argv[1:])
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\pylib\gyp\__init__.py", line 538, in main
    return gyp_main(args)
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\pylib\gyp\__init__.py", line 514, in gyp_main
    options.duplicate_basename_check)
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\pylib\gyp\__init__.py", line 98, in Load
    generator.CalculateVariables(default_variables, params)
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\pylib\gyp\generator\ninja.py", line 1684, in CalculateVariables
    gyp.msvs_emulation.CalculateCommonVariables(default_variables, params)
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\pylib\gyp\msvs_emulation.py", line 1083, in CalculateCommonVariables
    msvs_version = gyp.msvs_emulation.GetVSVersion(generator_flags)
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\pylib\gyp\msvs_emulation.py", line 934, in GetVSVersion
    allow_fallback=False)
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\third_party\gyp\pylib\gyp\MSVSVersion.py", line 447, in SelectVisualStudioVersion
    raise ValueError('Could not locate Visual Studio installation.')
ValueError: Could not locate Visual Studio installation.
Traceback (most recent call last):
  File "build_mozc.py", line 1236, in <module>
    main()
  File "build_mozc.py", line 1220, in main
    GypMain(cmd_opts, cmd_args)
  File "build_mozc.py", line 736, in GypMain
    RunOrDie(gyp_command + gyp_options)
  File "D:\a\my-chocolatey-packages\my-chocolatey-packages\mozc-emacs-helper\mozc\src\build_tools\util.py", line 99, in RunOrDie
    '==========']))

Could not locate Visual Studio installation. とあるので、Visual Studioが見つけられてないんでしょうけどgypの範疇で、どうやったら見つけてくれるのかよくわからない。

Visual Studio 2017がインストールされてる windows-2016 で実行したらいいかな、と思ってやってみたけど現象変わらず。