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#!/usr/bin/env perl
use strict;
use warnings;
use 5.010;
use File::Slurp qw(read_file write_file);
use JSON;
my $json_str = read_file('stations.json');
my $stations = JSON->new->utf8->decode($json_str);
@{$stations} = sort { $a->{name} cmp $b->{name} } @{$stations};
my $have_duplicates = 0;
my @names = map { $_->{name} } @{$stations};
my @ds100 = map { $_->{ds100} } sort { $a->{ds100} cmp $b->{ds100} } @{$stations};
my @uic_ids = map { $_->{uic} } sort { $a->{uic} <=> $b->{uic} } @{$stations};
for my $i ( 1 .. $#names ) {
if ( $names[ $i - 1 ] eq $names[$i] ) {
say "Duplicate station name: $names[$i]";
$have_duplicates = 1;
}
}
for my $i ( 1 .. $#ds100 ) {
if ( $ds100[ $i - 1 ] eq $ds100[$i] ) {
say "Duplicate DS100 code: $ds100[$i]";
$have_duplicates = 1;
}
}
for my $i ( 1 .. $#uic_ids ) {
if ( $uic_ids[ $i - 1 ] == $uic_ids[$i] ) {
say "Duplicate UIC ID: $uic_ids[$i]";
$have_duplicates = 1;
}
}
if ($have_duplicates) {
say "Thank you for your contribution.";
say "Please remove duplicate entries before opening a pull request.";
}
my $json_out = JSON->new->utf8->canonical->pretty->encode($stations);
write_file( 'stations.json', $json_out );
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