[Bug web/114223] New: Utilize filtering for git://gcc.gnu.org/git/gcc.git

["dilyan.palauzov at aegee dot org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114223

            Bug ID: 114223
           Summary: Utilize filtering for git://gcc.gnu.org/git/gcc.git
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: web
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dilyan.palauzov at aegee dot org
  Target Milestone: ---

I want to create a treeless-copy of the git://gcc.gnu.org/git/gcc.git . 
https://github.blog/2020-12-21-get-up-to-speed-with-partial-clone-and-shallow-clone/
explains what treeless is.


> $ git clone --filter=tree:0 git://gcc.gnu.org/git/gcc.git 
> Cloning into 'gcc'...
> warning: filtering not recognized by server, ignoring
…

When I utilize https://github.com/HaleTom/git-bloblessify/ to strip the
unneeded git blobs, eventually it reports

…
Fetching tags and HEAD's trees...
warning: filtering not recognized by server, ignoring
remote: Enumerating objects: 2342589, done.
remote: Counting objects: 100% (316017/316017), done.
remote: Compressing objects: 100% (20610/20610), done.
remote: Total 2342589 (delta 307150), reused 295435 (delta 295402), pack-reused
2026572
Receiving objects: 100% (2342589/2342589), 929.71 MiB | 6.40 MiB/s, done.
Resolving deltas: 100% (1915402/1915402), done.
warning: filtering not recognized by server, ignoring
remote: Enumerating objects: 2622955, done.
remote: Counting objects: 100% (301209/301209), done.
remote: Compressing objects: 100% (21051/21051), done.
remote: Total 2622955 (delta 293664), reused 280316 (delta 280149), pack-reused
2321746
Receiving objects: 100% (2622955/2622955), 1.01 GiB | 5.50 MiB/s, done.
Resolving deltas: 100% (2148507/2148507), done.
fatal: bad object 31ff5e249df46ff122b115c86af04022307fafa4
error: git://gcc.gnu.org/git/gcc.git did not send all necessary objects

git-bloblessify: clean-up: previous git objects have been restored
git-bloblessify: check remote origin config remains correct
remote.origin.url=git://gcc.gnu.org/git/gcc.git
remote.origin.fetch=+refs/heads/*:refs/remotes/origin/*
remote.origin.promisor=true
remote.origin.partialclonefilter=blob:none
git-bloblessify: exiting with error code: 1

I guess the 

fatal: bad object 31ff5e249df46ff122b115c86af04022307fafa4
error: git://gcc.gnu.org/git/gcc.git did not send all necessary objects


means some network error and retrying might help.  However retrying takes very
long, and might also not work, because of some other network error.

Please utilize server-side filtering on git://gcc.gnu.org/git/gcc.git  , so
that

> $ git clone --filter=tree:0 git://gcc.gnu.org/git/gcc.git 

does not print

> warning: filtering not recognized by server, ignoring