[oe-commits] [openembedded-core] 12/17: sstate: Handle sstate filenames longer than 255 characters
git at git.openembedded.org
git at git.openembedded.org
Mon Jan 6 14:49:08 UTC 2020
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rpurdie pushed a commit to branch master-next
in repository openembedded-core.
commit 06d3827256db35f8bcffa7f8cce4319c2b495d16
Author: Richard Purdie <richard.purdie at linuxfoundation.org>
AuthorDate: Sun Jan 5 14:49:03 2020 +0000
sstate: Handle sstate filenames longer than 255 characters
Many filesystems can't cope with filenames longer that 255 characters.
Add code to detect this and truncate non-essential elements of the filename
to stay within the limit.
[YOCTO #13268]
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
meta/classes/sstate.bbclass | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index 71ae090..241dace 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -7,11 +7,28 @@ def generate_sstatefn(spec, hash, taskname, siginfo, d):
if taskname is None:
return ""
extension = ".tgz"
+ # 8 chars reserved for siginfo
+ limit = 254 - 8
if siginfo:
+ limit = 254
extension = ".tgz.siginfo"
if not hash:
hash = "INVALID"
- return hash[:2] + "/" + hash[2:4] + "/" + spec + hash + "_" + taskname + extension
+ fn = spec + hash + "_" + taskname + extension
+ # If the filename is too long, attempt to reduce it
+ if len(fn) > limit:
+ components = spec.split(":")
+ # Fields 0,5,6 are mandatory, 1 is most useful, 2,3,4 are just for information
+ # 7 is for the separators
+ avail = (254 - len(hash + "_" + taskname + extension) - len(components[0]) - len(components[1]) - len(components[5]) - len(components[6]) - 7) / 3
+ components[2] = components[2][:avail]
+ components[3] = components[3][:avail]
+ components[4] = components[4][:avail]
+ spec = ":".join(components)
+ fn = spec + hash + "_" + taskname + extension
+ if len(fn) > limit:
+ bb.fatal("Unable to reduce sstate name to less than 255 chararacters")
+ return hash[:2] + "/" + hash[2:4] + "/" + fn
SSTATE_PKGARCH = "${PACKAGE_ARCH}"
SSTATE_PKGSPEC = "sstate:${PN}:${PACKAGE_ARCH}${TARGET_VENDOR}-${TARGET_OS}:${PV}:${PR}:${SSTATE_PKGARCH}:${SSTATE_VERSION}:"
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