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Home Backend Development Golang How to correctly use recursive substitution in golang's go.mod?

How to correctly use recursive substitution in golang's go.mod?

Feb 08, 2024 pm 11:50 PM
overflow

如何在 golang 的 go.mod 中正确使用递归替换?

When using golang's go.mod, the correct use of recursive substitution is an important issue. PHP editor Yuzai provides you with some solutions. Recursive replacement refers to the method of replacing a module with a local directory in the go.mod file for debugging and modification during development. However, if the replaced module depends on other modules, it may cause some problems. By using recursive substitution correctly, you can avoid these problems and keep your project's dependencies functioning properly. In this article, we will discuss how to properly use recursive substitution in go.mod and provide some practical tips and considerations.

Question content

I want a project structure as follows:

src/github.com/myname/myproject/
- tl:
    - constructor
        - someghing.go
        - go.mod:
            module github.com/myname/myproject/tl/constructor

            require github.com/myname/myproject v0.0.0
            require github.com/myname/myproject/tl/types v0.0.0
            require github.com/myname/myproject/tl/types/account v0.0.0
            require github.com/myname/myproject/tl/types/auth v0.0.0
            require github.com/myname/myproject/tl/types/bots v0.0.0

            replace github.com/myname/myproject v0.0.0 => ./../..
            replace github.com/myname/myproject/tl/types v0.0.0 => ./../types
            replace github.com/myname/myproject/tl/types/account v0.0.0 => ./../types/account
            replace github.com/myname/myproject/tl/types/auth v0.0.0 => ./../types/auth
            replace github.com/myname/myproject/tl/types/channels v0.0.0 => ./../types/channels
    - crcs
        - someghing.go
        - go.mod:
            module github.com/myname/myproject/tl/crcs

    - functions
        - account
            - someghing.go
            - go.mod:
                module github.com/myname/myproject/tl/functions/account

                require github.com/myname/myproject/tl/crcs v0.0.0
                require github.com/myname/myproject v0.0.0
                require github.com/myname/myproject/tl/types v0.0.0

                replace github.com/myname/myproject/tl/crcs v0.0.0 => ./../../crcs
                replace github.com/myname/myproject v0.0.0 => ./../../..
                replace github.com/myname/myproject/tl/types v0.0.0 => ./../../types
        - auth
            - someghing.go
            - go.mod:
                module github.com/myname/myproject/tl/functions/auth

                require github.com/myname/myproject/tl/crcs v0.0.0
                require github.com/myname/myproject v0.0.0
                require github.com/myname/myproject/tl/types v0.0.0

                replace github.com/myname/myproject/tl/crcs v0.0.0 => ./../../crcs
                replace github.com/myname/myproject v0.0.0 => ./../../..
                replace github.com/myname/myproject/tl/types v0.0.0 => ./../../types
        - bots
            - someghing.go
            - go.mod:
                module github.com/myname/myproject/tl/functions/bots

                require github.com/myname/myproject/tl/crcs v0.0.0
                require github.com/myname/myproject v0.0.0
                require github.com/myname/myproject/tl/types v0.0.0

                replace github.com/myname/myproject/tl/crcs v0.0.0 => ./../../crcs
                replace github.com/myname/myproject v0.0.0 => ./../../..
                replace github.com/myname/myproject/tl/types v0.0.0 => ./../../types
        - someghing.go
        - go.mod:
            module github.com/myname/myproject/tl/functions

            require github.com/myname/myproject/tl/crcs v0.0.0
            require github.com/myname/myproject v0.0.0
            require github.com/myname/myproject/tl/types v0.0.0

            replace github.com/myname/myproject/tl/crcs v0.0.0 => ./../crcs
            replace github.com/myname/myproject v0.0.0 => ./../..
            replace github.com/myname/myproject/tl/types v0.0.0 => ./../types
    - types
        - account
            - something.go
            - go.mod:
                module github.com/myname/myproject/tl/types/account

                require github.com/myname/myproject/tl/crcs v0.0.0
                require github.com/myname/myproject v0.0.0
                require github.com/myname/myproject/tl/types v0.0.0

                replace github.com/myname/myproject/tl/crcs v0.0.0 => ./../../crcs
                replace github.com/myname/myproject v0.0.0 => ./../../..
                replace github.com/myname/myproject/tl/types v0.0.0 => ./..

        - auth
            - something.go
            - go.mod:
                module github.com/myname/myproject/tl/types/auth

                require github.com/myname/myproject/tl/crcs v0.0.0
                require github.com/myname/myproject v0.0.0
                require github.com/myname/myproject/tl/types v0.0.0

                replace github.com/myname/myproject/tl/crcs v0.0.0 => ./../../crcs
                replace github.com/myname/myproject v0.0.0 => ./../../..
                replace github.com/myname/myproject/tl/types v0.0.0 => ./..
        - channels
            - something.go
            - go.mod:
                module github.com/myname/myproject/tl/types/channels

                require github.com/myname/myproject/tl/crcs v0.0.0
                require github.com/myname/myproject v0.0.0
                require github.com/myname/myproject/tl/types v0.0.0

                replace github.com/myname/myproject/tl/crcs v0.0.0 => ./../../crcs
                replace github.com/myname/myproject v0.0.0 => ./../../..
                replace github.com/myname/myproject/tl/types v0.0.0 => ./..
        - someghing.go
        - go.mod:
            module github.com/myname/myproject/tl/types

            require github.com/myname/myproject/tl/crcs v0.0.0
            require github.com/myname/myproject v0.0.0

            replace github.com/myname/myproject/tl/crcs v0.0.0 => ./../crcs
            replace github.com/myname/myproject v0.0.0 => ./../..
- something.go
- go.mod:
    module github.com/myname/myproject

    [some external dependencies]
    require github.com/myname/myproject/tl/types v0.0.0
    replace github.com/myname/myproject/l/types v0.0.0 => ./tl/types
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This doesn't work. I use jetbrains' ide and it executes go list on all (sub)modules and tells me the following error:

go: github.com/myname/myproject/tl/[email protected] requires
    github.com/myname/myproject/tl/[email protected]: reading github.com/myname/myproject/tl/crcs/go.mod at revision tl/crcs/v0.0.0: unknown revision tl/crcs/v0.0.0
Copy after login

I don't understand why this is happening, it looks like it tries to get the module from the repository even though everything is replaced locally. I'm open to suggestions other than changing the project structure. I need to be able to use things like account.sometype in the future, so putting everything in one file would be a pain.

Context: I'm building mtproto library for telegram which has tl mode where each "request"/"class" is in its own namespace (e.g. "account", "channel") (or named globally space, for example I am functions and types accordingly) (because there are more than 1900 of these functions/classes, each with its own constructor and parameters, so Putting everything in one module will be difficult to use)

The files in the tl folder are go codes automatically generated from the tl mode.

Workaround

ThanksDeanfor pointing out that you can have multiple packages (how?) in one module. It solved my problem while still maintaining the same structure.

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