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2019-05-09meta/lib+scripts: Convert to SPDX license headersRichard Purdie
This adds SPDX license headers in place of the wide assortment of things currently in our script headers. We default to GPL-2.0-only except for the oeqa code where it was clearly submitted and marked as MIT on the most part or some scripts which had the "or later" GPL versioning. The patch also drops other obsolete bits of file headers where they were encoountered such as editor modelines, obsolete maintainer information or the phrase "All rights reserved" which is now obsolete and not required in copyright headers (in this case its actually confusing for licensing as all rights were not reserved). More work is needed for OE-Core but this takes care of the bulk of the scripts and meta/lib directories. The top level LICENSE files are tweaked to match the new structure and the SPDX naming. Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-05-15cachedpath.py: global name 'error' is not definedRobert Yang
The error is not global since we don't use "from os import *", so it should be os.error. [YOCTO #4489] Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-05-09clases/lib: Use modern exception syntaxRichard Purdie
Update older code to use modern exception handling syntax which is the form accepted by python 3. Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-03-18package: Add cachedpath optimisationRichard Purdie
Currently, various standard library operations like os.walk(), os.path.isdir() and os.path.islink() each call stat or lstat which involves a syscall into the kernel. There is no caching since they could conceivably have changed on disk. The result is that for something like the do_package task of the kernel we're spending over two minutes making 868,000 individual stat calls for 23,000 files. This is suboptimal. This patch adds lib/oe/cachedpath.py which are a set of replacement functions for these operations which use cached stat data rather than hitting the kernel each time. It gives a nice performance improvement halving the build time of the kernel do_package. Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>