[Bug debuginfod/27711] grooming should process -I/-X

["mark at klomp dot org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27711

Mark Wielaard <mark at klomp dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |mark at klomp dot org
         Resolution|---                         |FIXED

--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
commit 0ae9b791b47cdee92ac7221e3eead79c83a64a40
Author: Noah <nsanci@redhat.com>
Date:   Wed Jul 7 14:40:10 2021 -0400

    debuginfod: PR27711 - Use -I/-X regexes during groom phase

    The debuginfod -I/-X regexes operate during traversal to identify
    those files in need of scanning.  The regexes are not used during
    grooming.  This means that if from run to run, the regex changes so
    that formerly indexed files are excluded from traversal, the data is
    still retained in the index.

    This is both good and bad.  On one hand, if the underlying data is
    still available, grooming will preserve the data, and let clients ask
    for it.  On the other hand, if the growing index size is a problem,
    and one wishes to age no-longer-regex-matching index data out, there
    is no way.

    Let's add a debuginfod flag to use regexes during grooming.
    Specifically, in groom(), where the stat() test exists, also check
    for regex matching as in scan_source_paths().  Treat failure of the
    regex the same way as though the file didn't exist.

    Signed-off-by: Noah Sanci <nsanci@redhat.com>

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