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Re: [RFC] URL rewrite in .gitmodules

From
Stefan Beller <sbeller@google.com>
Date
Oct 19, 2015, 22:07 UTC
Message-ID
<CAGZ79kY4A3nbp006JyMCgR_Oe6uHf-ECVD+6fJ-naa=XynUxRQ@mail.gmail.com>
In-Reply-To
<DCA9FD0F-252B-4CD7-9137-395771CBC62E@gmail.com>

On Mon, Oct 19, 2015 at 12:28 PM, Lars Schneider <larsxschneider@gmail.com> wrote:

> Hi,
>
> I have a closed source Git repo which references an Open Source Git repo as Submodule. The Open Source Git repo references yet another Open Source repo as submodule. In order to avoid failing builds due to external services I mirrored the Open Source repos in my company network. That works great with the first level of Submodules. Unfortunately it does not work with the second level because the first level still references the "outside of company" repos. I know I can rewrite Git URLs with the git config "url.<base>.insteadOf" option. However, git configs are client specific.

I feel like this is working as intended. You only want to improve your one client (say the buildbot) to not goto the open source site, while the developer may do want to fetch from external sources ("Hey shiny new code!";)

> I would prefer a solution that works without setup on any client. I also know that I could update the .gitmodules file in the Open Source repo on the first level. I also would prefer not to do this as I want to use the very same hashes as defined by the "upstream" Open Source repos.

You could carry a patch on top of the tip of the first submodule re-pointing the nested submodule. This requires good workflows available to deal with submodules though. (Fetch and merge or rebase, git submodule update should be able to do that?)

Show 5 quoted lines
>
> Is there yet another way in Git to change URLs of Submodules in the way I want it?
>
> If not, what do you think about a patch that adds a "url" section similar to the one in git config to a .gitmodules file?
>

So we have different kinds of git configs. within one repository, in the home director (global to the one machine), maybe you would want to have one "global" config on a network share, such that every box in your company reads that "company-wide" global config and acts upon that?

Show 8 quoted lines
> Example:
> ----------
> [submodule "git"]
>         path = git
>         url=git://github.com/larsxschneider/git.git
>
> [url "mycompany.com"]
>         insteadOf = outside.com

Wouldn't that be better put into say a global git config instead of repeating it for every submodule?

In case of the nested submodule you would need to carry the last lines as an extra patch anyway if this was done in the .gitmodules files? Or do you expect this to be applied recursively (i.e. nested submodules all the way down also substitute outside.com)

> ----------
>
Am I missing your point?
Show 5 quoted lines
> Thanks,
> Lars--
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Previous: Lars SchneiderNext: Lars Schneider
Message 2 of 8 in “[RFC] URL rewrite in .gitmodules”
  1. Lars SchneiderOct 19, 2015
  2. Stefan BellerOct 19, 2015
  3. Lars SchneiderOct 25, 2015
  4. Junio C HamanoOct 20, 2015
  5. Lars SchneiderOct 25, 2015
  6. Stefan BellerOct 26, 2015
  7. Jens LehmannOct 26, 2015
  8. Lars SchneiderNov 15, 2015

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