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|
#!/usr/bin/env perl
use strict;
my $operation = shift @ARGV;
if ($operation !~ m/^(install|uninstall)$/) {
print STDERR "$0: unknown operation $operation\n";
exit(1);
}
my %options = ();
for my $arg (@ARGV) {
if ($arg =~ m/([^=]*)=(.*)/) {
$options{$1} = $2;
}
else {
print STDERR "$0: can't parse option [$arg]\n";
exit(1);
}
}
for my $option (qw(command directory extension file)) {
unless (defined($options{$option})) {
print STDERR "$0: required variable $option not provided\n";
exit(1);
}
}
my $fh;
unless (open $fh, '<', $options{file}) {
print STDERR "$0: can't open links file '$options{file}': $!";
exit(1);
}
my @cmd = split /\s+/, $options{command};
while (my $line = <$fh>) {
chomp $line;
my @args = split /\s+/, $line;
process(@args);
}
sub process {
my ($source, @destinations) = @_;
my @args = (@cmd);
if ($operation eq 'install') {
push @args, "$options{directory}/$source.$options{extension}";
}
for my $destination (@destinations) {
push @args, "$options{directory}/$destination.$options{extension}";
run_command(@args);
pop @args;
}
}
sub run_command {
print (join ' ', @_);
print "\n";
my $ret = system(@_);
if ($ret != 0) {
print STDERR "$0: command failed: $?\n";
exit(1);
}
return 1;
}
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