gomodsrv

Gomodsrv is acting as a GOPROXY (see go help goproxy), serving versioned modules from local VCS repositories. This may be useful for cases where you are using module paths like your-domain.com/x/y, but no Git or Mercurial servers provide the repositories, but instead the repositories are kept private in a file system structure (that's a different use case than the one supported by the GOPRIVATE variable).

Currently there is initial support for Git and Mercurial repositories, based on the go command's internal modfetch/codehost package. This way module ZIP files are created the same way as by the go tool. The program is still in an early stage, but so far appears sufficient to make my private modules available to Go locally.

Gomodsrv can be run without arguments; a configuration file $HOME/lib/gomodsrv.ini has to be created with the following contents:

vcs-module-roots
	<path to the root of a file system tree containing vcs-controlled modules>
	<another path>

code-host-dir	<a directory, managed by modfetch/codehost, keeping local copies of repositories>

service-addr	<address to listen to>

For example:

vcs-module-roots
	/home/src

code-host-dir	/home/gomodsrv/codehost

service-addr	:7070

An alternative configuration file may be specified using option -c.

TODO

• update cache if new module versions are checked into local repositories (Currently, gomodsrv needs to be restarted in order to make changes to local repositories visible)

• to enable faster startup, speed up Mercurial access, caching some information

• support module versions ≥v2 that are managed in subdirectories

• support multiple modules per repository