=head1 SYNOPSIS
-B<dh_link> [S<I<debhelper options>>] [B<-A>] [S<I<source destination ...>>]
+B<dh_link> [S<I<debhelper options>>] [B<-A>] [B<-X>I<item>] [S<I<source destination> ...>]
=head1 DESCRIPTION
-dh_link is a debhelper program that creates symlinks in package build
+B<dh_link> is a debhelper program that creates symlinks in package build
directories.
-dh_link accepts a list of pairs of source and destination files. The source
+B<dh_link> accepts a list of pairs of source and destination files. The source
files are the already existing files that will be symlinked from. The
destination files are the symlinks that will be created. There B<must> be
an equal number of source and destination files specified.
-The list can be specified in two ways. A file named debian/package.links
-can list pairs of files. If you use this file, you should put each pair
-of files on its own line, and separate the files within the pair with
-whitespace. Also, pairs of files can be specified as parameters - these
-pairs will only be created in the package build directory of the first
-package dh_link is told to act on. By default, this is the first binary
-package in debian/control, but if you use -p, -i, or -a flags, it will be
-the first package specified by those flags.
-
Be sure you B<do> specify the full filename to both the source and
destination files (unlike you would do if you were using something like
L<ln(1)>).
-dh_link will generate symlinks that comply with debian policy - absolute
+B<dh_link> will generate symlinks that comply with Debian policy - absolute
when policy says they should be absolute, and relative links with as short
a path as possible. It will also create any subdirectories it needs to to put
the symlinks in.
-dh_link also scans the package build tree for existing symlinks which do not
-conform to debian policy, and corrects them (v4 only).
+Any pre-existing destination files will be replaced with symlinks.
+
+B<dh_link> also scans the package build tree for existing symlinks which do not
+conform to Debian policy, and corrects them (v4 or later).
+
+=head1 FILES
+
+=over 4
+
+=item debian/I<package>.links
+
+Lists pairs of source and destination files to be symlinked. Each pair
+should be put on its own line, with the source and destination separated by
+whitespace.
+
+=back
=head1 OPTIONS
Create any links specified by command line parameters in ALL packages
acted on, not just the first.
-=item I<source destination ...>
+=item B<-X>I<item>, B<--exclude=>I<item>
+
+Exclude symlinks that contain I<item> anywhere in their filename from
+being corrected to comply with Debian policy.
-Create a file named "destination" as a link to a file named "source". Do
+=item I<source destination> ...
+
+Create a file named I<destination> as a link to a file named I<source>. Do
this in the package build directory of the first package acted on.
-(Or in all packages if -A is specified.)
+(Or in all packages if B<-A> is specified.)
=back
dh_link usr/share/man/man1/foo.1 usr/share/man/man1/bar.1
-Make bar.1 be a symlink to foo.1
+Make F<bar.1> be a symlink to F<foo.1>
dh_link var/lib/foo usr/lib/foo \
usr/share/man/man1/foo.1 usr/share/man/man1/bar.1
-Make /usr/lib/foo/ be a link to /var/lib/foo/, and bar.1 be a symlink to
-the foo.1
+Make F</usr/lib/foo/> be a link to F</var/lib/foo/>, and F<bar.1> be a symlink to
+the F<foo.1>
=cut
error("parameters list a link without a destination.");
}
- # v4 only and only if there is a temp dir already
+ # v4 or later and only if there is a temp dir already
if (! compat(3) && -e $tmp) {
# Scan for existing links and add them to @links, so they
# are recreated policy conformant.
find(
sub {
return unless -l;
+ return if excludefile($_);
my $dir=$File::Find::dir;
$dir=~s/^\Q$tmp\E//;
my $target = readlink($_);
$src=~s:^/::;
$dest=~s:^/::;
+
+ if ($src eq $dest) {
+ warning("skipping link from $src to self");
+ next;
+ }
# Make sure the directory the link will be in exists.
my $basedir=dirname("$tmp/$dest");
# Figure out how much of a path $src and $dest
# share in common.
my $x;
- for ($x=0; $x<@src_dirs && $src_dirs[$x] eq $dest_dirs[$x]; $x++) {}
+ for ($x=0; $x < @src_dirs && $src_dirs[$x] eq $dest_dirs[$x]; $x++) {}
# Build up the new src.
$src="";
for (1..$#dest_dirs - $x) {
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