make 'cmd' packages installable via go install

[ymotongpoo]

Currently all packages under 'cmd' directory are not main packages and don't have main functions, which disables 'go install' to build command as independent executables. If those packages are intended to be example executables, turning them to main package should enable users to try this package more easily.

[KEINOS]

If those packages are intended to be example executables, turning them to main package should enable users to try this package more easily.

I believe packages under 'cmd' are provided as sub-commands of the main kagome, and are not intended to be independent executables nor provided as example.

As long as I understand from the README, if you want the sub-commands to be a single command/binary, you should use kagome as a library.

[ikawaha]

Thank you for the suggestion and for taking the time to look into kagome!

The cmd directory contains sub-packages that are used as sub-commands of the main kagome CLI tool. They are not intended to be independent executables.

We intentionally avoided placing the main package under cmd because we want users to be able to install the CLI tool with a simple command:

go install github.com/ikawaha/kagome/v2@latest

If each sub-command were built as a separate binary, the install path would need to include /cmd/..., which we wanted to avoid for usability reasons.

Also, in kagome’s case, the size of the dictionary dominates the binary size. So from a practical standpoint, it's more efficient to bundle all sub-commands into a single binary rather than compiling multiple binaries that would each embed the dictionary.

We really appreciate your interest in the project and your thoughtful feedback!