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#!/usr/bin/env perl
use strict;
use warnings;
use Cwd qw( cwd );
use Getopt::Std;
my %opts;
getopts('f', \%opts) or
die "Usage: $0 [-f]
Options:
-f Override exising symbolic links with force
";
my $root = shift || 'src';
my $force = $opts{f};
opendir my $dir, $root
or die "Can't open directory src/ for reading: $!\n";
my @links;
while (my $entry = readdir $dir) {
my ($base, $ext);
my $source = "$root/$entry";
if (-l $source || -d $source) {
warn "skipping $source\n";
next;
}
if ($entry =~ m{ ^ (?:ngx|ndk)_ (?: \w+ _ )* (\w+) \. ([ch]|rl) $}x) {
($base, $ext) = ($1, $2);
} else {
next;
}
my $target = "$root/$base.$ext";
if (-e $target && ! -l $target) {
die "target $target already exists, and not a symlink, not overriding...Abort.\n";
} elsif (-l $target) {
#warn "it's a link";
if ( ! $force ) {
die "target $target already exists, not overriding...Abort.\n";
}
warn "overriding existing symlink $target\n";
}
#warn "creating $target --> $root/$entry\n";
my $ln;
if ($^O eq 'solaris') {
$ln = "ln -sf";
} else {
$ln = "ln -svf";
}
system("$ln `pwd`/$source $target") == 0 or
die "Failed to create the symlink\n";;
push @links, $target;
}
print join("\n", @links), "\n";
close $dir;