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#!/usr/bin/env perl
require App::NDTools::NDDiff;
App::NDTools::NDDiff->new(@ARGV)->exec();
__END__
HideShow 138 lines of Pod
=head1 NAME
nddiff - diff tool for nested data structures
=head1 SYNOPSIS
    nddiff [OPTIONS] <file1> <file2> [<file3> ... ]
=head1 DESCRIPTION
Diff for nested data structures with human friendly (colored)
and machine-readable (JSON) output format.
=head1 OPTIONS
=over 4
=item B<--[no]X>
Where X is an op tag: C<A> (added), C<N> (new value), C<O> (old value), C<R>
(removed) or C<U> (unchanged). All ops enabled by default, except C<U>. See
L<Struct::Diff/DIFF FORMAT> for more info about nested diff format.
=item B<--brief>
Show where differences has happend, but don't show what exactly changed.
=item B<--[no]colors>
On/Off colors for diff.
=item B<--ctx-text> [int]
Amount of lines for multiline values context. Default is 3.
=item B<--full>
Don't suppress common items in JSON mode. Deprecated, C<--U> should be used
instead.
=item B<--full-headers>
Print full headers (delta printed by default).
=item B<--grep> E<lt>pathE<gt>
Grep substructures to diff. See path syntax description at
L<https://metacpan.org/pod/Struct::Path::PerlStyle>
=item B<--help|-h>
Print a help message and exit.
=item B<--ifmt> E<lt>JSON|YAMLE<gt>
Force specified input format usage. Will be selected automatically (using
file name extension) if omitted. L<YAML::XS> should be installed for YAML
support.
=item B<--ignore> E<lt>pathE<gt>
Ignore substructure. May be used several times.
=item B<--json>
Use JSON as output diff format.
=item B<--ofmt> E<lt>JSON|YAMLE<gt>
Force specified output format usage. JSON is used by default; L<YAML::XS>
should be installed for YAML support, see L<App::NDTools/LIMITATIONS> for
more info.
=item B<--[no]pretty>
On/Off pretty-print for JSON. Enabled by default.
=item B<--quiet|-q>
Don't show diff, only exit code shows exists diff or not.
=item B<--rules>
Dump diff as rules for L<ndproc>.
=item B<--show>
Visualize diff (JSON formatted diff file must be provided as argument).
=item B<--verbose|-v> [int]
Increase verbosity, max level - 4.
=item B<--version|-V>
Print version and exit.
=back
=head1 EXAMPLES
Human-friendly diff:
    nddiff a.json b.json
Machine-readable diff:
    nddiff --json a.json b.json
Same as above, but without added items:
    nddiff --noA --json a.json b.json
=head1 EXIT STATUS
 0   No errors, no diff.
 1   Generic error code.
 2   I/O Error.
 4   Path related errors.
 8   Difference found.
=head1 BUGS
Report bugs to L<https://github.com/mr-mixas/NDTools/issues>
=head1 SEE ALSO
L<ndpatch>, L<ndproc>, L<ndquery>
L<App::NDTools::NDDiff>, L<Struct::Diff>
=head1 LICENSE AND COPYRIGHT
Copyright 2016-2018 Michael Samoglyadov C<< <mixas at cpan.org> >>.
This program is free software; you can redistribute it and/or modify it
under the terms of GNU General Public License 3 or later versions.