git fetch sha1

Currently fetching a sha1 fails on git.kernel.org:

$ git --version && uname -a git version 1.9.4 Linux nixos 3.12.23 #1-NixOS SMP Thu Jan 1 00:00:01 UTC 1970 x86_64 GNU/Linux

$ rm -rf test && mkdir test && cd test && git init Initialized empty Git repository in ~/test/.git/

$ git fetch --depth 1 https://git.kernel.org/pub/scm/git/git.git 782735203c316041df120748e5e88c1787cdf4da error: no such remote ref 782735203c316041df120748e5e88c1787cdf4da

I tried with head, same error. However, if I clone the full repository and then manually execute git upload-pack, it successfully fetches the commit:

$ git fetch https://git.kernel.org/pub/scm/git/git.git master <wait an hour> $ git checkout -b sha1 782735203c316041df120748e5e88c1787cdf4da $ printf "0045want %s multi_ack_detailed\n000Ddeepen 1\n00000009done\n0000" "782735203c316041df120748e5e88c1787cdf4da"

$ cat input | git upload-pack --stateless-rpc . > output $ sed -z "s/.*0008NAK\n//" < output > output.pack $ git index-pack output.pack && git verify-pack -v output.pack | grep commit f239687a5dbbd1bbb761d09edec582418c66c297 782735203c316041df120748e5e88c1787cdf4da commit 374 234 12

So theoretically this is supported server-side. Unfortunately kernel.org does not agree:

$ curl --data-binary @input --header "Content-Type: application/x-git-upload-pack-request" --header "Accept-Encoding: gzip" --header "Accept: application/x-git-upload-pack-result" --header "Expect:" https://git.kernel.org/pub/scm/git/git.git/git-upload-pack > output $ wc -c output 0 output

Why is there a discrepancy between git.kernel.org and upload-pack --stateless-rpc?

-- Allan Gardner