From: Marat Radchenko <marat@slonopotamus.org>
Date: Tue, 19 Oct 2010 06:28:26 GMT
Subject: [BUG] git repack fails if .git/objects/pack is on a separate partition
Message-ID: <1287469706023-5649732.post@n2.nabble.com>


Console log:

Counting objects: 5137063, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (892984/892984), done.
fatal: unable to rename temporary pack file: Invalid cross-device link
error: failed to run repack

Reason:
write_pack_file in builtin/pack-objects.c first writes tmp file in
"pack/tmp_pack_XXXXXX". 

Then, it tries to rename it to "%s-%s.pack":

snprintf(tmpname, sizeof(tmpname), "%s-%s.pack",
                                 base_name, sha1_to_hex(sha1));
...
if (rename(pack_tmp_name, tmpname))
                                die_errno("unable to rename temporary pack
file");

and happily fails because that crosses device boundary. Same problem with
index file. Suggested fix: do those renames inside pack directory or avoid
them at all.
-- 
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