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rodolico |
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#!/usr/bin/env perl
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# Common library for havirt. Basically, just a place to put things which may be used by any
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# part of havirt.
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# v0.0.1 20240602 RWR
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# Initial setup
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package havirt;
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our $VERSION = '0.01';
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use warnings;
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use strict;
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use Data::Dumper qw(Dumper); # Import the Dumper() subroutine
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use Exporter;
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our @ISA = qw( Exporter );
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our @EXPORT = qw(
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&readDB &writeDB
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&report_tsv &report_screen
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);
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sub readDB {
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my ($filename) = @_;
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my $yaml = YAML::Tiny->new( {} );
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if ( -f $filename ) {
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$yaml = YAML::Tiny->read( $filename );
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}
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return $yaml->[0];
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}
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sub writeDB {
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my ($filename,$data) = @_;
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my $yaml = YAML::Tiny->new( $data );
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$yaml->write( $filename );
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}
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sub report_tsv {
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my ( $header, $data ) = @_;
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my @output;
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push @output, join( "\t", @$header );
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for( my $line = 0; $line < @$data; $line++ ) {
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push @output, join( "\t", @{$data->[$line]} );
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} # for
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return join( "\n", @output ) . "\n";
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}
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sub report_screen {
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my ( $header, $data ) = @_;
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my @output;
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my @widths;
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my $column;
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my $row;
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# First, initialize by using the length of the headers
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for ( $column = 0; $column < @$header; $column++ ) {
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@widths[$column] = length( $header->[$column] );
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}
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# now, go through all data in each row, for each column, and increment the width if it is larger
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for ( $row = 0; $row < @$data; $row++ ) {
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for ( $column = 0; $column < @$header; $column++ ) {
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$widths[$column] = length( $data->[$row][$column] )
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if length( $data->[$row][$column] ) > $widths[$column];
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} # for column
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} # for row
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# actually do the print now
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my @format;
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for ( $column = 0; $column < @widths; $column++ ) {
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push ( @format, '%' . $widths[$column] . 's' );
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}
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my $format = join( ' ', @format ) . "\n";
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my $output = sprintf( $format, @$header );
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for ( $row = 0; $row < @$data; $row++ ) {
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$output .= sprintf( $format, @{$data->[$row]} );
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} # for row
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return $output;
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}
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