Bug 583754 – scanelf path should respect EPREFIX

• Product: Portage Development
• Status: RESOLVED FIXED

[Description Benda Xu 2016-05-22 08:15:30 UTC]

This patch prepends EPREFIX to the scanelf path.


Reproducible: Always

[Comment 1 Benda Xu 2016-05-22 08:16:42 UTC]

Created attachment 434950 [details, diff]
portage-scanelf-path.patch

[Comment 2 Benda Xu 2016-06-02 09:42:17 UTC]

Ping portage team.

[Comment 3 Brian Dolbec (RETIRED) 2016-06-02 10:17:58 UTC]

It is normally better to use os.path.join() that simple string addtition.  That way it takes care of extra leading/trailing slashes.

Thank you for the patch.

[Comment 4 Benda Xu 2016-06-02 10:49:19 UTC]

Created attachment 436168 [details, diff]
portage-2.3.0-scanelf-path.patch

Updated to os.path.join. Thanks!

[Comment 5 Zac Medico 2016-06-06 07:14:10 UTC]

Note that os.path.join has "tricky" behavior for paths that begin with a slash. For example, os.path.join("/foo", "/bar") return "bar". Nice, eh? So what we really want is something like this:

   os.path.join(os.sep, EPREFIX, "usr/bin/scanelf")

or this:

   os.path.join(os.sep, EPREFIX, "usr", "bin", "scanelf")

[Comment 6 Benda Xu 2016-06-06 13:22:36 UTC]

Created attachment 436630 [details, diff]
portage-2.3.0-scanelf-path.patch

Thanks for pointing this out, Zac. Updated.  Note that os.sep is used implicitly.

[Comment 7 Zac Medico 2016-06-06 16:09:03 UTC]

Thanks, is in the master branch:

https://gitweb.gentoo.org/proj/portage.git/commit/?id=54d3676d4dc90444895c99c0b6c29d6be6a25b77

(In reply to Benda Xu from comment #6)
> Note that os.sep is used implicitly.

You need to include a leading "/" in the case where EPREFIX is empty, so I fixed it up like this, which is how we do it in some other places:

   os.path.join(EPREFIX or "/", "usr/bin/scanelf")

[Comment 8 Benda Xu 2016-06-06 23:44:20 UTC]

(In reply to Zac Medico from comment #7)
> Thanks, is in the master branch:
> 
> https://gitweb.gentoo.org/proj/portage.git/commit/
> ?id=54d3676d4dc90444895c99c0b6c29d6be6a25b77
> 
> (In reply to Benda Xu from comment #6)
> > Note that os.sep is used implicitly.
> 
> You need to include a leading "/" in the case where EPREFIX is empty, so I
> fixed it up like this, which is how we do it in some other places:
> 
>    os.path.join(EPREFIX or "/", "usr/bin/scanelf")

Thanks Zac!

[Comment 9 Benda Xu 2016-06-30 13:47:45 UTC]

Included in 2.3.0 release.