Could not write merged data into yml file

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I am trying to merge two yml files with following perl code. When I print the $res via Dumper module, I could see the data.

I ran my script, but final.yml has reference data, instead of original data:-

srcARRAY(0x1013320)local_pointerARRAY(0x10228f8)

Code:-

use warnings;
use strict;
use feature 'say';
use Data::Dump;
use Data::Dumper;
use Storable qw(dclone);
use YAML qw(LoadFile);
use File::Slurp qw(write_file);
use Hash::Merge qw(merge);
Hash::Merge::set_behavior('RETAINMENT_PRECEDENT');

die "Usage: $0 file1 file2\n" if @ARGV != 2;
my ($fname1, $fname2) = @ARGV;

my $yml1 = LoadFile($fname1);
my $yml2 = LoadFile($fname2);


my $res = merge($yml1, $yml2);
#print Dumper $res;
write_file("final.yml", { binmode => ':raw' }, %{$res});

Should we need to set any custom settings in perl Hash::Merge module?

perl
1 Answers

To write the YAML data out to a file, use the YAML Dump function:

use warnings;
use strict;
use YAML qw(LoadFile Dump);
use File::Slurp qw(write_file);
use Hash::Merge qw(merge);
Hash::Merge::set_behavior('RETAINMENT_PRECEDENT');

die "Usage: $0 file1 file2\n" if @ARGV != 2;
my ($fname1, $fname2) = @ARGV;

my $yml1 = LoadFile($fname1);
my $yml2 = LoadFile($fname2);

my $res = merge($yml1, $yml2);
write_file("final.yml", Dump($res));

Or, you can also use YAML::DumpFile instead of File::Slurp::write_file:

DumpFile("final.yml", $res);
user_1977580
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