[bug#33066] [PATCH 1/2] gnu: rust: workaround rust 1.25-27 reproducibility issues

[Nikolai Merinov]

Hi Danny,

I fixed patches according to your comments. Also I updated rust 1.29.1
to 1.29.2 and fixed test issue in 1.27: as I mentioned before I tested
reproducibility of each package previously only in private my private
repo where I disabled `check` phase for 1.25 and 1.27. I have pretty
slow machine, but currently I already checked reproducibility with
suggested patches for 1.23-1.26 releases. 1.27-1.29 in progress.

Both updated patches attached.

Danny Milosavljevic <address@hidden> writes:

> Hi Nikolai,
>
> On Tue, 16 Oct 2018 02:32:11 +0500
> Nikolai Merinov <address@hidden> wrote:
>
>> * 
>> gnu/packages/patches/rust-mdbook-Support-reproducible-builds-by-forcing-window.search.patch:
>
> Nitpick: No big "S" (file names are easier to find if they are all lower 
> case).
>
Fixed.

>> patch that make "searchindex.js" reproducible in rust 1.27 and newer.
>
> "New file".
Fixed.

>
>> * gnu/local.mk (dist_patch_DATA): Add new patch file.
>> * gnu/packages/rust.scm (rust-1.19): Use system libssh2 library
>
> Hmm, I'm not sure about doing this in the same commit.
> Is it also related to reproducibility?

Looks like it should not, but still I started investigation with
non-reproducible "libssh2" and "libgit2" rust libraries I made libssh2
related changes at very beginning and never tested wihtout it. I not
sure that it's good idea to remove it now.

>
>> during cargo build. Note: libgit2 still builded as part of cargo build,
>> because cargo tests assume specific libgit2 minor release.
>
> What does this mean?  Does it mean "bundled"?
Yes. Rust used bundled sources for "libgit2-sys" rust library (used by cargo).

>
>> (rust-1.23): inherit native-inputs from previous package.
>
> Ok.
>
>> (rust-1.25): switch back to llvm 3.9.1 as workaround for
>> https://github.com/rust-lang/rust/issues/50556 issue.
>
> Please add the reasoning as a comment inside the source code instead.
Added comment for rust-1.25 package.

>
>> (rust-1.27): apply patch to make "searchindex.js" files reproducible.
>
> Maybe add "[source]".
I repharase this comment and added source URL to patch file itself.

>
>> -             (add-after 'configure 'enable-codegen-tests
>> -               (lambda _
>> -                 (substitute* "config.toml"
>> -                   (("codegen-tests = false") ""))
>> -                 #t))
>
> I think I had reproducibility problems when enabling codegen tests and
> parallel tests.  Is that not the case anymore?
Neither me nor Joe Hillenbrand in
https://lists.gnu.org/archive/html/guix-devel/2018-10/msg00292.html got
reproducibility issues with this tests.
>
>>               ;; FIXME: Re-enable this test if it's indeed supposed to work.
>>               ;; See <https://github.com/rust-lang/rust/issues/54178>.
>
> Note to myself: I think the issue comments indicate that the newer gdb output
> is better - so we should create a patch similar to
> rust-1.25-accept-more-detailed-gdb-lines.patch to accept the newer output.

0001-gnu-rust-workaround-rust-1.25-27-reproducibility-iss.patch
Description: make rust 1.25-1.27 reproducible

0002-gnu-rust-add-rust-1.28-and-rust-1.29-packages.patch
Description: Add rust 1.28-1.29 packages