From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#32245: Guix does not search sources locally by hash
Date: Mon, 23 Jul 2018 10:41:14 +0200
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References: <20180722115607.1eea6917@alma-ubu>
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To: =?UTF-8?Q?Bj=C3=B6rn_?= =?UTF-8?Q?H=C3=B6fling?= <bjoern.hoefling@bjoernhoefling.de>
Cc: 32245@debbugs.gnu.org

Hi,

Bj=C3=B6rn H=C3=B6fling <bjoern.hoefling@bjoernhoefling.de> skribis:

> $> ./pre-inst-env  guix build java-eclipse
> [..]
> @ build-started /gnu/store/lqfw971srfifgql68ibdgh58vi4d8fq3-java-eclipse-=
oxygen-3a-linux-gtk-x86_64.tar.gz.drv - x86_64-linux /var/log/guix/drvs/lq/=
/fw971srfifgql68ibdgh58vi4d8fq3-java-eclipse-oxygen-3a-linux-gtk-x86_64.tar=
.gz.drv.bz2

[...]

> But it does NOT search locally. Because I already have:
>
> guix hash /gnu/store/56h6snwcawpzk6rhcwgk442wsx6k86q2-eclipse-java-oxygen=
-3a-linux-gtk-x86_64.tar.gz
> 0m7y7jfm059w01x9j5b5qkinjjmhkyygpjabhjf19fg2smxmwcim

It does, but the file name matters.  In this case what you have is
=E2=80=9Ceclipse-java-=E2=80=A6=E2=80=9D but you=E2=80=99re trying to build=
 =E2=80=9Cjava-eclipse-=E2=80=A6=E2=80=9D.

So you first need to add the file to the store under its expected name.
You can do that for instance with:

  guix download file://=E2=80=A6/java-eclipse-=E2=80=A6

HTH!

Ludo=E2=80=99.