Package workspace relocation

Package workspace relocation

[Stephen Scheck]

Is there a way to relocate the package build workspace for a Git clone
source, e.g.:

    (package
      (name "my-package")
      (version "0.0.1")
      (source (origin
                      (method git-fetch)
                      (uri (git-reference
                         (url "https://github.com/my-package")))
                         (file-name (git-file-name name version))

This results in a path like `<guix-build-temp>/my-package-0.0.1` but
because of idiosyncrasies in the project's build system, I need for it to
be relocated to something like `<guix-build-temp>/foo/bar/my-package-0.0.1`.

How can I do this?

Thanks.

Re: Package workspace relocation

[Leo Famulari]

On Mon, Nov 16, 2020 at 03:15:46PM -0500, Stephen Scheck wrote:
> Is there a way to relocate the package build workspace for a Git clone
> source, e.g.:
> 
>     (package
>       (name "my-package")
>       (version "0.0.1")
>       (source (origin
>                       (method git-fetch)
>                       (uri (git-reference
>                          (url "https://github.com/my-package")))
>                          (file-name (git-file-name name version))
> 
> This results in a path like `<guix-build-temp>/my-package-0.0.1` but
> because of idiosyncrasies in the project's build system, I need for it to
> be relocated to something like `<guix-build-temp>/foo/bar/my-package-0.0.1`.
> 
> How can I do this?

I'm not sure that I fully understand what you are asking.

However, the location of the build directory is controlled by the TMPDIR
variable, which is set in the environment of the guix-daemon. You can
set it to any location that you want.

An alternative per-package approach is to add a build phase before the
'unpack' phase and do something like `mkdir -p foo/bar && chdir
foo/bar`.

Re: Package workspace relocation

[Stephen Scheck]

I just need to add a prefix to the directory in which the Git source is
cloned, because its build system requires that. I don't care which TMP
directory Guix daemon uses for its build root. I just need for
`/my-project` to become `/foo/bar/my-project`. It sounds like what you
suggested will do the trick, if I understand it correctly.

Thanks.


On Mon, Nov 16, 2020 at 3:56 PM Leo Famulari <leo@famulari.name> wrote:

> On Mon, Nov 16, 2020 at 03:15:46PM -0500, Stephen Scheck wrote:
> > Is there a way to relocate the package build workspace for a Git clone
> > source, e.g.:
> >
> >     (package
> >       (name "my-package")
> >       (version "0.0.1")
> >       (source (origin
> >                       (method git-fetch)
> >                       (uri (git-reference
> >                          (url "https://github.com/my-package")))
> >                          (file-name (git-file-name name version))
> >
> > This results in a path like `<guix-build-temp>/my-package-0.0.1` but
> > because of idiosyncrasies in the project's build system, I need for it to
> > be relocated to something like
> `<guix-build-temp>/foo/bar/my-package-0.0.1`.
> >
> > How can I do this?
>
> I'm not sure that I fully understand what you are asking.
>
> However, the location of the build directory is controlled by the TMPDIR
> variable, which is set in the environment of the guix-daemon. You can
> set it to any location that you want.
>
> An alternative per-package approach is to add a build phase before the
> 'unpack' phase and do something like `mkdir -p foo/bar && chdir
> foo/bar`.
>

Re: Package workspace relocation

[zimoun]

Dear,

On Mon, 16 Nov 2020 at 16:56, Stephen Scheck <singularsyntax@gmail.com> wrote:

> `/my-project` to become `/foo/bar/my-project`. It sounds like what you

[...]

>> > This results in a path like `<guix-build-temp>/my-package-0.0.1` but
>> `<guix-build-temp>/foo/bar/my-package-0.0.1`.

What do you want?  Append a suffix /tmp/guix-xyz/foo/bar/your-pkg or a
prefix /tmp/foo/bar/guix-xyz/your-pkg?

Change the prefix means changing the TMPDIR environment variable of
guix-daemon (priviliged user).

At first look, I do not know how to add something between guix-xyz-drv-0/
and your-pkg/.  Curious to know how. :-)


Hope that helps,
simon

Re: Package workspace relocation

[Efraim Flashner]

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On Tue, Nov 17, 2020 at 12:09:35AM +0100, zimoun wrote:
> Dear,
> 
> On Mon, 16 Nov 2020 at 16:56, Stephen Scheck <singularsyntax@gmail.com> wrote:
> 
> > `/my-project` to become `/foo/bar/my-project`. It sounds like what you
> 
> [...]
> 
> >> > This results in a path like `<guix-build-temp>/my-package-0.0.1` but
> >> `<guix-build-temp>/foo/bar/my-package-0.0.1`.
> 
> What do you want?  Append a suffix /tmp/guix-xyz/foo/bar/your-pkg or a
> prefix /tmp/foo/bar/guix-xyz/your-pkg?
> 
> Change the prefix means changing the TMPDIR environment variable of
> guix-daemon (priviliged user).
> 
> At first look, I do not know how to add something between guix-xyz-drv-0/
> and your-pkg/.  Curious to know how. :-)
> 

I think I'd go with
(add-after 'unpack 'move-source
  (lambda _
    (mkdir-p "foo/bar")
    (rename-file "my-project" "foo/bar/my-project")
  #t))

With that you'll be in <guix-build-temp> and you can chdir into whatever
directory you want. Or you could change the source so it doesn't expect
the source to be deep in a directory structure.

-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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Re: Package workspace relocation

[zimoun]

Hi Efraim,

On Tue, 17 Nov 2020 at 09:23, Efraim Flashner <efraim@flashner.co.il> wrote:

> (add-after 'unpack 'move-source
>   (lambda _
>     (mkdir-p "foo/bar")
>     (rename-file "my-project" "foo/bar/my-project")
>   #t))

Cool!  Thank you for the explanation.

Cheers,
simon