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# ============================================================ #
# #
# File : provide_libs.pl #
# Purpose : #
# #
# Coded by Ralf Westram (coder@reallysoft.de) in June 2009 #
# Institute of Microbiology (Technical University Munich) #
# www.arb-home.de #
# #
# ============================================================ #
use strict;
use warnings;
my %needed_by = (
# 'libXm.so' => 'arb_ntree', # this would also link the motif lib (not done atm)
);
my %needed_by_opengl = (
'libGLEW.so' => 'arb_edit4',
'libGLw.so' => 'arb_edit4',
);
my $verbose = 0; # for debugging this script
# libs get copied to ../lib/addlibs
sub getModtime($) {
my ($fileOrDir) = @_;
my $modtime = (stat($fileOrDir))[9];
return $modtime;
}
sub update_lib($$$) {
my ($libname, $binary, $addlibsdir) = @_;
if (not -f $binary) {
print "Can't use '$binary' to detect used '$libname' (no such file)\n";
}
else {
my ($linked_symbolic,$linked_real) = (undef,undef);
my $command = 'ldd '.$binary;
$verbose==0 || print "$command\n";
open(LDD,$command.'|') || die "can't execute '$command' (Reason: $!)";
foreach (<LDD>) {
chomp;
if (/^\s+([^\s]+)\s+=>\s+([^\s]*)\s+\(.*\)$/) {
my ($symbolic,$real) = ($1,$2);
$verbose==0 || print "ldd-out: symbolic='$symbolic' real='$real'\n";
if ($symbolic =~ /^$libname\./) {
($linked_symbolic,$linked_real) = ($symbolic,$real);
}
}
else {
$verbose==0 || print "cant parse ldd-out: '$_'\n";
}
}
close(LDD);
my $keep = undef;
if (not defined $linked_symbolic) {
print "Warning: $binary is NOT linked against $libname ($libname will not be provided)\n";
}
else {
print "$binary links against '$linked_symbolic' ($linked_real)\n";
my $source = $linked_real;
my $dest = $addlibsdir.'/'.$linked_symbolic;
my $doCopy = 0;
if (-f $dest) {
my $mod_source = getModtime($source);
my $mod_dest = getModtime($dest);
if ($mod_dest != $mod_source) {
print "Modification time of $source differs -> force update\n";
$doCopy = 1;
}
else {
print "$dest is up-to-date\n";
}
}
else { $doCopy = 1; }
if ($doCopy==1) {
$command = "cp -p '$source' '$dest'";
print "Updating $dest\n";
system($command)==0 || die "Failed to execute '$command' (Reason: $?)";
}
if (not -f $dest) { die "oops .. where is $dest?"; }
$keep = $linked_symbolic;
}
# delete older copies
opendir(DIR,$addlibsdir) || die "can't read directory '$addlibsdir' (Reason: $!)";
foreach (readdir(DIR)) {
if (/^$libname/) {
# print "Matching file: '$_'\n";
if ((not defined $keep) or ($_ ne $keep)) {
my $toRemove = $addlibsdir.'/'.$_;
print "removing obsolete file '$toRemove'\n";
unlink($toRemove) || die "Failed to unlink '$toRemove' (Reason: $!)";
}
}
}
closedir(DIR);
}
}
sub provide_libs($$$) {
my ($arbhome,$addlibsdir,$opengl) = @_;
my $bindir = $arbhome.'/bin';
chdir($arbhome) || die "can't cd to '$arbhome' (Reason: $!)";
print "Updating additional libs\n";
foreach my $lib (keys %needed_by) {
update_lib($lib, $bindir.'/'.$needed_by{$lib}, $addlibsdir);
}
if ($opengl==1) {
foreach my $lib (keys %needed_by_opengl) {
update_lib($lib, $bindir.'/'.$needed_by_opengl{$lib}, $addlibsdir);
}
}
}
sub main() {
my $args = scalar(@ARGV);
if ($args==0) {
die 'Usage: provide_libs.pl "opengl=$(OPENGL)" "link_static=$(LINK_STATIC)" "arbhome=$(ARBHOME)"';
}
my %arg = ();
foreach (@ARGV) {
if (/^([^=]+)=(.*)$/) { $arg{$1} = $2; }
else { die "can't handle argument '$_'"; }
}
if ($verbose>0) { foreach (sort keys %arg) { print "$_='".$arg{$_}."'\n"; } }
my $opengl = $arg{opengl};
my $arbhome = $arg{arbhome};
my $link_static = $arg{link_static};
if (defined $opengl and defined $arbhome and defined $link_static) {
if (not -d $arbhome) { die "Expected directory '$arbhome'"; }
my $addlibsdir = $arbhome.'/lib/addlibs';
if (not -d $addlibsdir) { die "Expected directory '$addlibsdir'"; }
if ($link_static == 1) {
print "No libs provided to $addlibsdir (we are linking static)\n";
}
else {
provide_libs($arbhome,$addlibsdir,$opengl);
}
}
else {
die "Expected arguments are 'devel=', 'arbhome=' and 'link_static='";
}
}
main();
|
