How can I use a development copy/clone of a package while using dep and a vendor directory? The vendor directory is included in the main repository.
For example, I have forked package and replaced it with my own on github. I want to be able to edit the code and not have to git push + dep ensure for each change of the package.
If I clone the package in the vendor directory, it I won't be able to commit that directory into the main repo because it's treated as a separate repository.
I tried a trick to .gitignore the .git directory from outside the package. This works well until dep ensure is run, where the .git directory is nuked.
According to the dep docs, there is no inbuilt way of doing this as it stands.
They also recommend not modifying packages in the vendor directory directly, for the reasons I discovered: it gets nuked when running dep ensure.
Their main suggestion is to manually remove the package from the vendor/ directory, modify it in the regular $GOPATH, and running dep ensure -update <pkg> when finished development of it.
This is sufficiently better than pushing for each change, but still requires to manually push/dep ensure when completing the development work.
An alternative to "ignoring .git" is to keep the .git folder elsewhere! (well outside of your Go project)
Any time you need to execute a git command in the vendored sub-project, you would need to use an alias to the git command, which would be:
alias gg='git --git-dir=/path/to/elsewhere/.git --work-tree=/path/to/vendored/subproject'
# Windows
doskey gg=git --git-dir=C:\path\to\elsewhere\.git --work-tree=C:\path\to\vendored\subproject $*
That way, you can still benefit from version-controled operations within your vendored subproject.
来源：https://stackoverflow.com/questions/48031621/how-to-work-with-a-development-vendor-package-managed-by-dep