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Donald Hunter 0df6932485 tools: ynl: handle broken pipe gracefully in CLI
When sending YNL CLI output into a pipe, closing the pipe causes a
BrokenPipeError. E.g. running the following and quitting less:

./tools/net/ynl/pyynl/cli.py --family rt-link --dump getlink | less
Traceback (most recent call last):
  File "/home/donaldh/net-next/./tools/net/ynl/pyynl/cli.py", line 160, in <module>
    main()
    ~~~~^^
  File "/home/donaldh/net-next/./tools/net/ynl/pyynl/cli.py", line 142, in main
    output(reply)
    ~~~~~~^^^^^^^
  File "/home/donaldh/net-next/./tools/net/ynl/pyynl/cli.py", line 97, in output
    pprint.PrettyPrinter().pprint(msg)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^
[...]
BrokenPipeError: [Errno 32] Broken pipe

Consolidate the try block for ops and notifications, and gracefully
handle the BrokenPipeError by adding an exception handler to the
consolidated try block.

Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20250508112102.63539-1-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
History 2025-05-09 16:28:23 -07:00
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Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.