GNU bug report logs - #29700
Java packages need to retain references

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Message #29 received at 29700-done <at> debbugs.gnu.org (full text, mbox):

From: Gábor Boskovits <boskovits <at> gmail.com>
To: Ricardo Wurmus <rekado <at> elephly.net>
Cc: 29700-done <at> debbugs.gnu.org
Subject: Re: bug#29700: Java packages need to retain references
Date: Fri, 15 Dec 2017 07:44:36 +0100

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Do we know the impact of disabling compression?
I don't think it is really a big problem.
You are right with this, I'm still a bit stuck in another mindset, where we
usually know, that we have only one version of a package...
If we later decide that compression is desired we can still go with a text
file with references.
Anyway, do you think that extending the reference scanner would be a good
idea?


2017-12-14 23:59 GMT+01:00 Ricardo Wurmus <rekado <at> elephly.net>:

> Hi Gábor,
>
> The manifest file would not be sufficient.  Take the example of
> “java-usb4java”.  It provides a file “share/java/usb4java.jar”, which
> contains this manifest:
>
> --8<---------------cut here---------------start------------->8---
> Manifest-Version: 1.0
> Created-By: 1.7.0_161 (Oracle Corporation)
>
> --8<---------------cut here---------------end--------------->8---
>
> When you open the Loader.class file that is included in the archive you
> will notice that it contains this string:
>
>     /gnu/store/iwjqaqr98daqbgwswqi5fi4w891bqh7d-libusb4java-0-1.396d642a5/
> lib/libusb4java.so
>
> This reference is currently dropped because it cannot be detected in a
> compressed archive.  The reference is not contained in the manifest, and
> at build time we could only guess which references should be added to
> the manifest.
>
> Unless we extend the reference scanner to deal with compressed files I
> think that disabling compression in jars is the best approach.
>
> I’ll push this to master.
>
> --
> Ricardo
>
> GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
> https://elephly.net
>
>
>

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