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NAME | SYNOPSIS | DESCRIPTION | AUTHOR | COLOPHON |
GUARDS(1) User Contributed Perl Documentation GUARDS(1)
guards - select from a list of files guarded by conditions
guards [--prefix=dir] [--path=dir1:dir2:...] [--default=<0|1>]
[--check|--list] [--invert-match] [--with-guards] [--config=<file>]
symbol ...
The script reads a configuration file that may contain so-called
guards, file names, and comments, and writes those file names that
satisfy all guards to standard output. The script takes a list of
symbols as its arguments. Each line in the configuration file is
processed separately. Lines may start with a number of guards. The
following guards are defined:
+xxx Include the file(s) on this line if the symbol xxx is
defined.
-xxx Exclude the file(s) on this line if the symbol xxx is
defined.
+!xxx Include the file(s) on this line if the symbol xxx is not
defined.
-!xxx Exclude the file(s) on this line if the symbol xxx is not
defined.
- Exclude this file. Used to avoid spurious --check messages.
The guards are processed left to right. The last guard that matches
determines if the file is included. If no guard is specified, the
--default setting determines if the file is included.
If no configuration file is specified, the script reads from standard
input.
The --check option is used to compare the specification file against
the file system. If files are referenced in the specification that do
not exist, or if files are not enlisted in the specification file
warnings are printed. The --path option can be used to specify which
directory or directories to scan. Multiple directories are separated
by a colon (":") character. The --prefix option specifies the
location of the files. Alternatively, the --path=@<file> syntax can
be used to specify a file from which the file names will be read.
Use --list to list all files independent of any rules. Use
--invert-match to list only the excluded patches. Use --with-guards
to also include all inclusion and exclusion rules.
Andreas Gruenbacher <agruen@suse.de>, SUSE Labs
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COLOPHON (which is not part of the original manual page), send a mail
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perl v5.22.2 2017-07-05 GUARDS(1)