File permissions on git fetched packages.

File permissions on git fetched packages.

[Mathieu Othacehe]

Hi Guix,

I'm trying to package a specific version of libgit2, fetched from a git
repo. I noticed that when cloned in /gnu/store/xxx-git-checkout, all
files have 444 permissions, because /gnu/store is mounted read-only I guess.

The problem is when /gnu/store/xxx-git-checkout/tests/resources/ are
copied to /tmp and tests are run, they fail when trying to write on read
only files.

Any idea on how to overcome this issue and preserve file permissions on
git fetched packages ?

Thanks,

Mathieu

Re: File permissions on git fetched packages.

[Ludovic Courtès]

Hello,

Mathieu Othacehe <m.othacehe@gmail.com> skribis:

> I'm trying to package a specific version of libgit2, fetched from a git
> repo. I noticed that when cloned in /gnu/store/xxx-git-checkout, all
> files have 444 permissions, because /gnu/store is mounted read-only I guess.
>
> The problem is when /gnu/store/xxx-git-checkout/tests/resources/ are
> copied to /tmp and tests are run, they fail when trying to write on read
> only files.
>
> Any idea on how to overcome this issue and preserve file permissions on
> git fetched packages ?

I think you just have to “chmod -R +w” those files.

I was looking for examples of packages that use ‘git-fetch’ and that do
that, but I couldn’t easily find one.  I suppose that’s what they do
when they have to, though.

HTH!

Ludo’.

Re: File permissions on git fetched packages.

[Carlo Zancanaro]

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On Sun, Sep 17 2017, Ludovic Courtès wrote:
> I think you just have to “chmod -R +w” those files.
>
> I was looking for examples of packages that use ‘git-fetch’ and that do
> that, but I couldn’t easily find one.  I suppose that’s what they do
> when they have to, though.

One example is kakoune. It has a fix-test-permissions phase which does
exactly that.

Carlo

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