bitbake: fetch/git: run gc in foreground to avoid race with tar

It looks like git gc can interrupts the package creation when
BB_GENERATE_MIRRORS_TARBALL is in use.

Log excerpts:

tar -czf TOPDIR/../downloads/git2_bitbucket.name-hidden.git.tar.gz . failed with exit code 1, output:
tar: ./objects/pack/pack-89a1d76f6c08f53172ef1d02ff851d90564362c4.pack: file changed as we read it
tar: ./objects/pack/pack-b4a48ada355d333630fdf6b4f67205b7c264dc2c.idx: File removed before we read it

Auto packing the repository in background for optimum performance.
See "git help gc" for manual housekeeping.

(Bitbake rev: a8d8cb847063862d1a7998963dd8b767ff73d877)

Signed-off-by: Adam Romanek <romanek.adam@gmail.com>
Signed-off-by: Damian Wrobel <dwrobel@ertelnet.rybnik.pl>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/bitbake/lib/bb/fetch2/git.py b/bitbake/lib/bb/fetch2/git.py
index 5e65c83c63..488f4c7414 100644
--- a/bitbake/lib/bb/fetch2/git.py
+++ b/bitbake/lib/bb/fetch2/git.py
@@ -231,7 +231,7 @@ class Git(FetchMethod):
             for name in ud.names:
                 ud.unresolvedrev[name] = 'HEAD'
 
-        ud.basecmd = d.getVar("FETCHCMD_git") or "git -c core.fsyncobjectfiles=0"
+        ud.basecmd = d.getVar("FETCHCMD_git") or "git -c core.fsyncobjectfiles=0 -c gc.autoDetach=false"
 
         write_tarballs = d.getVar("BB_GENERATE_MIRROR_TARBALLS") or "0"
         ud.write_tarballs = write_tarballs != "0" or ud.rebaseable