[bitbake-devel] [PATCH] fetch2: Handle lockfiles for file:// urls redirected to mirrors
Richard Purdie
richard.purdie at linuxfoundation.org
Thu Mar 24 16:11:56 UTC 2016
We recently dropped lockfiles for file:// urls which in itself makes
sense.
If a file url redirects to something like an http:// mirror, we'd have
no lock taken for the original file and could race against others
trying to download the file. We therefore need to ensure there is a
lock taken in the mirror handling code.
This adds code to take such a lock, assuming it isn't the same lock
as the parent url.
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index f86014c..d87d8e8 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -915,6 +915,10 @@ def rename_bad_checksum(ud, suffix):
def try_mirror_url(fetch, origud, ud, ld, check = False):
# Return of None or a value means we're finished
# False means try another url
+
+ if ud.lockfile and ud.lockfile != origud.lockfile:
+ lf = bb.utils.lockfile(ud.lockfile)
+
try:
if check:
found = ud.method.checkstatus(fetch, ud, ld)
@@ -980,6 +984,10 @@ def try_mirror_url(fetch, origud, ud, ld, check = False):
except UnboundLocalError:
pass
return False
+ finally:
+ if ud.lockfile and ud.lockfile != origud.lockfile:
+ bb.utils.unlockfile(lf)
+
def try_mirrors(fetch, d, origud, mirrors, check = False):
"""
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