linux/poky.git/bitbake/lib/bb/parse, branch nanbield

bitbake: lib: Drop inotify support and replace with mtime checks

2023-09-18T10:35:05+00:00

With the flush in serverlog() removed and a memory resident bitbake with a 60s timeout, the following could fail in strange ways: rm bitbake-cookerdaemon.log bitbake-layers add-layer ../meta-virtualization/ bitbake-layers add-layer ../meta-openembedded/meta-oe/ bitbake -m specifically that it might error adding meta-oe with an error related to meta-virt. This clearly shows that whilst bblayers.conf was modified, bitbake was not recognising that. This would fit with the random autobuilder issues seen when the serverlog flush() call was removed. The issue appears to be that you have no way to "sync()" the inotify events with the command stream coming over the socket. There is no way to know if there are changes in the IO queue which bitbake needs to wait for before proceeding with the next command. I did experiment with os.sync() and fsync on the inotify fd, however nothing addressed the issue. Since it is extremely important we have accurate cache data, the only realistic thing to do is to switch to stat() calls and check mtime. For bitbake commands, this is straightforward since we can revalidate the cache upon new connections/commands. For tinfoil this is problematic and we need to introduce and explict command "revalidateCaches" that the code can use to force bitbake to re-check it's cache validity. I've exposed this through tinfoil with a new "modified_files" function. So, this patch: a) drops inotify support within bitbake's cooker/server and switch to using mtime b) requires a new function call in tinfoil when metadata has been modified (Bitbake rev: da3ec3801bdb80180b3f1ac24edb27a698415ff7) Signed-off-by: Richard Purdie

bitbake: bitbake: ConfHandler: Allow variable flag name with a single character

2023-04-13T11:01:45+00:00

Update regex pattern to allow variable flag name with a single character. Regression tests have also been updated in `bb.parse` and `bin/bitbake-selftest -k ParseTest` has been successfully executed. Eliminate a trailing space as well. (Bitbake rev: bb9e523291a3cad6e1596ee6a1e715b5e5feba8f) Signed-off-by: Kai Kang Signed-off-by: Richard Purdie

bitbake: ConfHandler: Allow the '@' character in variable flag names

2023-03-23T22:41:32+00:00

This patch enables the usage of the '@' character in variable flag names. One use case of variable flags is to assign the network namespaces of some systemd services/targets to configure other parts of the build process of some system. The filenames of systemd services/targets might contain the '@' character if they are template unit files that can take in a single parameter/argument and be instanced multiple times, as indicated by systemd's official manual page. The '@' character is disallowed as the first character in a variable flag name. Imposing more restrictions on the first character is a compromise to make parsing easier and to allow for more options in the future to extend the syntax. This patch is successfully verified by creating a custom BitBake recipe that sets and unsets the value of a variable flag with the '@' character in its name and ensuring that no ParseError is being thrown. Regression tests have also been added to `bb.parse`. `bin/bitbake-selftest` has also been successfully executed and all tests passed. (Bitbake rev: 00f9ab2cacfbd2a63b6b4959cf5401babae7e32a) Signed-off-by: James Raphael Tiovalen Signed-off-by: Alexandre Belloni Signed-off-by: Richard Purdie

bitbake: fetch2: Add autorev warning when it is set too late

2023-03-22T13:57:04+00:00

Bitbake expects a consistent metadata environment when it parses. There are plenty of ways you can set a recipe to autorev at a point where parts of the fetcher have already been triggered leading to obsure bugs which I struggled to debug, let alone anyone not familar with the code. If anyone is running into the message from the commit, the issue is likely one of timing. Keep in mind that the anonymous python code in base.bbclass will expand variables like FILESPATH, WORKDIR and others which contain PV. The recipe needs to be set to AUTOREV before that anonymous python runs. In particular, that means you can't set SRCREV = "${AUTOREV}" in other anonymous python, it needs to happen earlier. (Bitbake rev: 4d9ec332d5bfc8b60b54f8ec2a17d34e35aa903a) Signed-off-by: Richard Purdie

bitbake: ast/data/codeparser: Add dependencies from python module functions

2022-12-17T08:52:28+00:00

Moving code into python modules is a very effective way to reduce parsing time and overhead in recipes. The downside has always been that any dependency information on which variables those functions access is lost and the hashes can therefore become less reliable. This patch adds parsing of the imported module functions and that dependency information is them injected back into the hash dependency information. Intermodule function references are resolved to the full function call names in our module namespace to ensure interfunction dependencies are correctly handled too. (Bitbake rev: 605c478ce14cdc3c02d6ef6d57146a76d436a83c) (Bitbake rev: 91441e157e495b02db44e19e836afad366ee8924) Signed-off-by: Richard Purdie

bitbake: parse: Add support for addpylib conf file directive and BB_GLOBAL_PYMODULES

2022-12-08T11:15:47+00:00

For many years OE-Core has injected it's own python modules into the python namespace using an immediate expansion of a variable in base.bbclass. It also added all entries from BBPATH to sys.path. We really need this to become a first class citizen of the langauge, this new addpylib directive allows that. Usage is of the form: addpylib The namespace is imported and if there is an attribute BBIMPORT, that list of names is iterated and imported too. This mirrors what OE-Core has done for a long time with one difference in implmentation, sys.path is only appended to. This means later imported namespaces can't overwrite an earlier one and can't overwrite the main python module space. In practice we've never done that and it isn't something we should encourage or support. The new directive is only applied for .conf files and not other filetypes as it only makes sense in that context. It is also only allowed in the "base configuration" context of cookerdata since adding it at the recipe level wouldn't work properly due to the way it changes the global namespace. At the same time, move the list of modules to place in the global namespace into a BB_GLOBAL_PYMODULES variable. It is intended that only the core layer should touch this and it is meant to be a very small list, usually os and sys. BB_GLOBAL_PYMODULES is expected to be set before the first addpylib directive. Layers adding a lib directory will now need to use this directive as BBPATH is not going to be added automatically by OE-Core in future. The directives are immediate operations so it does make modules available sooner than the current OE-Core approach. The new code appends to sys.path rather than prepends as core did, as overwriting python standard library modules would be a bad idea and naturally encouraging people to collaborate around our own core modules is desireable. (Bitbake rev: afb8478d3853f6edf3669b93588314627d617d6b) Signed-off-by: Richard Purdie

bitbake: BBHandler: Remove pointless global variable declarations

2022-11-29T10:25:51+00:00

These are static regex compilations which don't change or a standard module import (bb). There is noneed to declare them as global so drop the pointless code which doesn't do anything. (Bitbake rev: 09a4c159e3fd184f730821e7bd99916b0d28dc70) Signed-off-by: Richard Purdie

bitbake: BBHandler/cooker: Implement recipe and global classes

2022-08-12T10:49:29+00:00

We have some confusion for users since some classes are meant to work in the configuration space (or "globally") and some are meant to be selected by recipes individually. The cleanest way I could find to clarify this is to create "classes-global" and "classes-recipe" directories which contain the approproate classes and have bitbake switch scope between them at the appropriate point during parsing. The existing "classes" directory is always searched as a fallback. Once a class is moved to a specific directory, it will no longer be found in the incorrect context. A good example from OE is that INHERIT += "testimage" will no longer work but IMAGE_CLASSES += "testimage" will, which makes the global scope cleaner by only including it where it is useful and intended to be used (images). (Bitbake rev: f33ce7e742f46635658c400b82558cf822690b5e) Signed-off-by: Richard Purdie

bitbake: BBHandler: Make inherit calls more directly

2022-08-12T10:49:29+00:00

Rather than recursing into the conf handler code, simply call into the parse code directly when inheriting files as we've already resolved the paths and don't need anything the other codepath brings. This makes the codepath clearer at the expense of some slight duplication. (Bitbake rev: 0f4f3af6d93a0018df58b8a1d8d423c78ba6526d) Signed-off-by: Richard Purdie

bitbake: BBHandler: Allow earlier exit for classes not found

2022-08-12T10:49:29+00:00

Rather than relying on later code to error if the class isn't found, exit earlier and more clearly from a code perspective. (Bitbake rev: f7c55c8147329670fd5bc55b1ae3f47f25b89bab) Signed-off-by: Richard Purdie