Package: debhelper
Version: 5.0.17
>From (eg) dh_install(1):
OPTIONS
-Xitem, --exclude=item
Exclude files that contain "item" anywhere in their filename from
being installed.
I found a usage in the firefox debian/rules which assumed that
(i) it's a glob pattern (ii) anchored at both ends. A quick survey
here suggests that the idea that it's a glob pattern is not uncommon
So I went to check the code, and found this in Dh_Lib.pm:
$x=escape_shell($x);
$x=~s/\./\\./g;
$dh{EXCLUDE_FIND}.="-regex .\\*$x.\\* -or ";
Here $x is the actual parameter string as supplied by the caller, and
the $dh{EXCLUDE_FIND} will be substituted into a big shell string.
The effect is that the argument to -X is treated as a regexp except
that `.' is a literal `.' instead of `any character'.
The exact syntax should be sane, and documented. I would suggest that
the best syntax is probably: glob pattern, unanchored, except that it
may starts with ^ or end with $ to indicate anchoring. This will
probably be sufficiently backward-compatible with existing practice
that no compat version specific handling will be needed.
Ian.
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