Perl output format - perl

Question

I'm reading a log file and grouping it based on the 'Program' name and in turn its ID.
LOG FILE
------------------------------------------
DEV: COM-1258
Program:Testing
Reviewer:Jackie
Description:New Entries
rev:r145201
------------------------------------------
QA: COM-9696
Program:Testing
Reviewer:Poikla
Description:Some random changes
rev:r112356
------------------------------------------
JIRA: COM-1234
Program:Development
Reviewer:John Wick
Description:Genral fix
rev:r345676
------------------------------------------
JIRA:COM-1234
Program:Development
Reviewer:None
Description:Updating Received
rev:r909276
------------------------------------------
JIRA: COM-6789
Program:Testing
Reviewer:Balise Mat
Description:Audited
rev:r876391
------------------------------------------
JIRA: COM-8585
Program:Testing
Reviewer:Gold frt
Description: yet to be reviewed
rev:r565639
The code I have,
#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Terse = 1;
my $file = "log.txt";
open FH, $file or die "Couldn't open file: [$!]\n";
my $data = {};
my $hash = {};
while (<FH>)
{
my $line = $_;
chomp $line;
if ($line =~ m/(-){2,}/)
{
my $program = $hash->{Program} || '';
my $jira = $hash->{JIRA} || $hash->{QA} || $hash->{DEV} ||
+'';
if ($program && $jira)
{
push #{$data->{$program}{$jira}}, $hash;
$hash = {};
}
}
else
{
if ($line =~ m/:/)
{
my ($key, $value) = split /:\s*/, $line;
$hash->{$key} = $value;
}
elsif ($line =~ m#/# && exists $hash->{Files})
{
$hash->{Files} .= "\n$line";
}
}
}
print 'data = ' . Dumper($data);
foreach my $prg (sort keys %{$data})
{
print "===========================================================
+=\n";
print " PROGRAM : $prg
+ \n";
print "===========================================================
+=\n";
foreach my $jira (sort keys %{$data->{$prg}})
{
print "******************\n";
print "JIRA ID : $jira\n";
print "******************\n";
foreach my $hash (#{$data->{$prg}{$jira}})
{
foreach my $key (keys %{$hash})
{
# print the data except Program and JIRA
next if $key =~ m/(Program|JIRA|DEV|QA)/;
print " $key => $hash->{$key}\n";
}
print "\n";
}
}
}
I have a requirement to print the output in the below format and currently unable to do so with my logic, any ideas would be really helpful.
PROGRAM: Development
Change IDs:
1.JIRA
a.COM-1234
PROGRAM: Testing
Change IDs:
1.JIRA
a.COM-6789
b.COM-8585
2.QA
a.COM-9696
3.DEV
a.COM-1258

Answer 1

I would write this
use strict;
use warnings 'all';
use List::Util 'uniq';
my $file = 'log.txt';
open my $fh, $file or die "Couldn't open file: [$!]\n";
my #data;
{
my %item;
while ( <$fh> ) {
chomp;
if ( eof or /\-{2,}/ ) {
push #data, { %item } if keys %item;
%item = ();
}
else {
my ( $key, $value ) = split /\s*:\s*/;
next unless $value;
$item{$key} = $value;
$item{jira} = $key if grep { $key eq $_ } qw/ JIRA DEV QA /;
}
}
}
my %data;
{
for my $item ( #data ) {
my ($prog, $jira) = #{$item}{qw/ Program jira /};
push #{ $data{$prog}{$jira} }, $item->{$jira};
}
}
for my $prog ( sort keys %data ) {
printf "PROGRAM: %s\n", $prog;
print "Change IDs:\n";
my $n = 1;
for my $jira ( qw/ JIRA QA DEV / ) {
next unless my $codes = $data{$prog}{$jira};
printf "%d.%s\n", $n++, $jira;
my $l = 'a';
printf " %s.%s\n", $l++, $_ for sort(uniq(#$codes));
}
print "\n";
}
output
PROGRAM: Development
Change IDs:
1.JIRA
a.COM-1234
PROGRAM: Testing
Change IDs:
1.JIRA
a.COM-6789
b.COM-8585
2.QA
a.COM-9696
3.DEV
a.COM-1258

Answer 2

#!/usr/bin/perl -w
use strict;
use warnings;
use Data::Dumper;
my $file = 'test';
my $hash;
my $id_hash = ();
my $line_found = 0;
my $line_count = 1;
my $ID;
my $ID_num;
open (my $FH, '<', "$file") or warn $!;
while (my $line = <$FH> ) {
chomp($line);
if ( $line =~ m/------------------------------------------/){
$line_found = 1;
$line_count++;
next;
}
if ( $line_found ) {
$line =~ m/(.*?):(.*)/;
$ID = $1;
$ID_num = $2;
$line_found = 0;
}
if ( $line =~ m/Program:(.*)/ ) {
my $pro = $1;
push #{$hash->{$pro}->{$ID}}, ($ID_num) ;
}
$line_count++;
}
close $FH;
foreach my $pro (keys %$hash){
# print Dumper($pro);
print "PROGRAM:\t$pro\nChange IDs:\n";
foreach my $ids (keys $hash->{$pro}){
print "\t1. $ids\n";
foreach my $id (values $hash->{$pro}->{$ids}){
print "\t\ta. $id\n";
}
}
}
OUTPUT
PROGRAM: Testing
Change IDs:
1. QA
a. COM-9696
1. DEV
a. COM-1258
1. JIRA
a. COM-6789
a. COM-8585
PROGRAM: Development
Change IDs:
1. JIRA
a. COM-1234
a. COM-1234
Just change the output to your need!!