GNU bug report logs - #62656
Cannot fallback to SWH for Guix channel

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From: Simon Tournier <zimon.toutoune <at> gmail.com>
To: Ludovic Courtès <ludovic.courtes <at> inria.fr>, Nicolas Graves <ngraves <at> ngraves.fr>
Cc: 62656 <at> debbugs.gnu.org
Subject: bug#62656: broken guix time-machine + software-heritage
Date: Tue, 24 Oct 2023 15:23:15 +0200

Hi,

On Wed, 26 Apr 2023 at 12:01, Ludovic Courtès <ludovic.courtes <at> inria.fr> wrote:

>> I suspect this is an issue at SWH.  I’ll bring it up there.
>
> https://gitlab.softwareheritage.org/swh/devel/swh-vault/-/issues/4346

Issue closed. \o/

Now, it passes:

--8<---------------cut here---------------start------------->8---
$ time wget -O/tmp/swh.git \
   "https://archive.softwareheritage.org/api/1/vault/git-bare/swh:1:rev:1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1/raw/"
> --2023-10-24 15:12:14--  https://archive.softwareheritage.org/api/1/vault/git-bare/swh:1:rev:1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1/raw/
Resolving archive.softwareheritage.org (archive.softwareheritage.org)... 128.93.166.15
Connecting to archive.softwareheritage.org (archive.softwareheritage.org)|128.93.166.15|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://swhvaultstorage.blob.core.windows.net/contents-uncompressed/4210e49babbe65df77ab7075d68615ca5edc2a23?se=2023-10-25T13%3A12%3A14Z&sp=r&sv=2019-02-02&sr=b&rscd=attachment%3B%20filename%3D%22swh_1_rev_1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1.git.tar%22&sig=scSRKMM3zV0UO5rb91lk/M8AUhlQEeKrhm31VbvhB6w%3D [following]
--2023-10-24 15:12:14--  https://swhvaultstorage.blob.core.windows.net/contents-uncompressed/4210e49babbe65df77ab7075d68615ca5edc2a23?se=2023-10-25T13%3A12%3A14Z&sp=r&sv=2019-02-02&sr=b&rscd=attachment%3B%20filename%3D%22swh_1_rev_1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1.git.tar%22&sig=scSRKMM3zV0UO5rb91lk/M8AUhlQEeKrhm31VbvhB6w%3D
Resolving swhvaultstorage.blob.core.windows.net (swhvaultstorage.blob.core.windows.net)... 20.209.11.33
Connecting to swhvaultstorage.blob.core.windows.net (swhvaultstorage.blob.core.windows.net)|20.209.11.33|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 296632320 (283M) [application/octet-stream]
Saving to: ‘/tmp/swh.git’

/tmp/swh.git                      100%[===========================================================>] 282.89M  6.87MB/s    in 37s     

2023-10-24 15:12:51 (7.70 MB/s) - ‘/tmp/swh.git’ saved [296632320/296632320]


real	0m37.034s
user	0m0.973s
sys	0m2.602s
--8<---------------cut here---------------end--------------->8---

Please note:

--8<---------------cut here---------------start------------->8---
$ file swh.git
swh.git: POSIX tar archive (GNU)

$ mkdir -p some-dir
$ mv swh.git some-dir/
$ cd some-dir/
$ tar -xf swh.git
$ mv swh:1:rev:1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1.git .git

$ git log --oneline -10
1984d56b0e (HEAD -> master) gnu: Add scilab.
13b2d110ee gnu: Add suitesparse-3.
f4d7b901db gnu: matio: Add header file.
42b938ae8c gnu: Add audmes.
be5e280e5f Revert "gnu: network-manager: Update to 1.43.4."
7ceedc7df7 gnu: conan: Update to 2.0.2.
57c3662ddd gnu: conan: Use gexps and remove input labels.
113146d31c gnu: r-mumin: Update to 1.47.5.
c029bac121 gnu: r-tclust: Update to 1.5-4.
aadc68f297 gnu: r-car: Update to 3.1-2.

$ git log --oneline | wc -l
110743

$ git log --format="%cd %s" | tail -3
Wed Apr 18 23:34:19 2012 +0200 Add `.gitignore'.
Wed Apr 18 23:34:12 2012 +0200 Split (guix) in (guix store) and (guix derivations).
Wed Apr 18 23:21:11 2012 +0200 Initial commit.
--8<---------------cut here---------------end--------------->8---

And only the master branch seems around,

--8<---------------cut here---------------start------------->8---
$ git branch -avv
* master 1984d56b0e gnu: Add scilab.
--8<---------------cut here---------------end--------------->8---

Last, there is a SWH redirection that is probably not supported.

--8<---------------cut here---------------start------------->8---
$ guix time-machine -q --commit=1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1 -- describe
SWH: found revision 1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1 with directory at 'https://archive.softwareheritage.org/api/1/directory/1ea499e7529e67a0632ecbe0a8214f0618a82c1a/'
SWH: object swh:1:rev:1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1 could not be fetched from the vault
guix time-machine: warning: revision 1984d56b0e437af7be7fa6cf8e1a00e45eb8ffa1 of https://git.savannah.gnu.org/git/guix.git could not be fetched from Software Heritage
guix time-machine: error: Git error: failed to resolve address for git.savannah.gnu.org: Name or service not known
--8<---------------cut here---------------end--------------->8---

The issue is progressing…

Cheers,
simon

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