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#!/usr/bin/perl -w
#
# Automatically find and install man pages. However, do not install any man
# pages listed on the command line.
# Also change man pages with .so commands in them into symlinks.
#
# This is a little bit (hah!) DWIMish, but still very handy.
use File::Find;
BEGIN { push @INC, "debian", "/usr/share/debhelper" }
use Dh_Lib;
init();
# Check if a file is a man page, for use by File::Find.
my @manpages;
my @allpackages;
sub find_man {
# Does its filename look like a man page?
# .ex files are examples installed by deb-make,
# we don't want those, or .in files, which are
# from configure.
if (! (-f $_ && /^.*\.[1-9].*$/ && ! /\.(ex|in)$/)) {
return;
}
# It's not in a tmp directory is it?
if ($File::Find::dir=~m:debian/.*tmp.*:) {
return;
}
foreach $dir (@allpackages) {
if ($File::Find::dir=~m:debian/\Q$dir\E:) {
return;
}
}
# And file does think it's a real man page?
my $type=`file -z $_`;
if ($type !~ m/:.*roff/) {
return;
}
# Good enough.
push @manpages,"$File::Find::dir/$_";
}
# Check if a file is a .so man page, for use by File::Find.
my @sofiles;
my @sodests;
sub find_so_man {
# The -s test is becuase a .so file tends to be small. We don't want
# to open every man page. 1024 is arbitrary.
if (! -f $_ || -s $_ > 1024) {
return;
}
# Test first line of file for the .so thing.
open (SOTEST,$_);
my $l=<SOTEST>;
close SOTEST;
if ($l=~m/\.so\s+(.*)/) {
my $solink=$1;
# This test is here to prevent links like ... man8/../man8/foo.8
if (Dh_Lib::basename($File::Find::dir) eq Dh_Lib::dirname($solink)) {
$solink=Dh_Lib::basename($solink);
}
else {
$solink="../$solink";
}
push @sofiles,"$File::Find::dir/$_";
push @sodests,$solink;
}
}
foreach $PACKAGE (@{$dh{DOPACKAGES}}) {
$TMP=tmpdir($PACKAGE);
# Find all filenames that look like man pages.
@manpages=();
@allpackages=GetPackages('');
find(\&find_man,'.'); # populates @manpages
foreach $page (@manpages) {
$page=~s:^\./::; # just for looks
$basename=Dh_Lib::basename($page);
# Skip all files listed on command line.
my $install=1;
foreach $skip (@ARGV) {
# Look at basename of what's on connect line
# for backwards compatability.
if ($basename eq Dh_Lib::basename($skip)) {
$install=undef;
last;
}
}
if ($install) {
my $extdir="";
# Handle X man pages specially.
if ($basename=~/x$/) {
$extdir="X11R6";
}
my ($section)=$basename=~m/.*\.([1-9])/;
my $destdir="$TMP/usr/$extdir/man/man$section/";
$destdir=~tr:/:/:s; # just for looks
if (! -e "$destdir/$basename" && !-l "$destdir/$basename") {
if (! -d $destdir) {
doit "install","-d",$destdir;
}
doit "install","-p","-m644",$page,$destdir;
}
}
}
# Now the .so conversion.
@sofiles=@sodests=();
foreach $dir (qw{usr/man usr/X11R6/man}) {
if (-e "$TMP/$dir") {
find(\&find_so_man, "$TMP/$dir");
}
}
foreach $sofile (@sofiles) {
my $sodest=shift(@sodests);
doit "rm","-f",$sofile;
doit "ln","-sf",$sodest,$sofile;
}
}
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