fetch2/svn: Fix SVN repository concurrent update race

The ${DL_DIR}/svn directory is used by BitBake to keep checked-out SVN
repositories from which tarballs are generated. These repositories were
protected from concurrent update with a lock on the tarballs. However,
the tarballs are specific to the SRCREV and module checked out (many
tarballs can come from the same repository), meaning a repository could
be modified concurrently if two recipes checked out two different
SRCREVs or modules from it in parallel. This caused errors like the
following:

ERROR: Fetcher failure: Fetch command failed with exit code 1, output:
svn: E155004: Run 'svn cleanup' to remove locks (type 'svn help cleanup' for details)
svn: E155004: Working copy '/home/foo/downloads/svn/repo/trunk' locked.
svn: E155004: '/home/foo/downloads/svn/repo/trunk' is already locked.

Fix it by adding a per-repository lock that's independent of the module
and SRCREV.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@bmw.de>
Signed-off-by: Michael Ho <Michael.Ho@bmw.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions