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#!/usr/bin/perl
use List::MoreUtils qw(uniq nsort_by);
use LaTeX::Encode qw(latex_encode);
# four files:
# - glr: input file, unsorted list of glep numbers, may contain duplicates,
# generated by LaTeX
# - gld: database of gleps, format
# * glep number
# * glep title
# * glep status
# * index keywords separated by ";"
# - glg: output file, LaTeX fragment that can be sourced
# Fetch the title of a bug from Bugzilla
# URL example: https://wiki.gentoo.org/index.php?title=GLEP:31&action=raw
# Result contains
# {{GLEP
# |Number=31
# |Title=Character Sets for Portage Tree Items
# |Type=Standards Track
# |Status=Final
# |Author=Ciaran McCreesh <ciaranm@gentoo.org>
# }}
sub getglepdata {
my $number=shift;
open (my $web, '-|:encoding(UTF-8)',
'wget -O - https://wiki.gentoo.org/index.php?title=GLEP:'.$number.'\&action=raw');
my @glep=<$web>;
close $web;
my $title, $status;
foreach (@glep) {
$line=$_; chomp $line; print "line is $line\n";
if ($_=~ /^\|Title=/) {
$title=$_;
$title=~s/^\|Title=//;
chomp $title;
};
if ($_=~ /^\|Status=/) {
$status=$_;
$status=~s/^\|Status=//;
chomp $status;
};
};
return ($title, $status);
}
# Main code start
# Read the list of gleps referenced in the LaTeX file.
open my $glr, '<', "decisions.glr";
my @glrlist = <$glr>;
close $glr;
chomp @glrlist;
my @glepnumbers=uniq nsort_by { $_ } @glrlist;
# Read the database
open my $gld, '<', "decisions.gld";
my $gleptitle={};
my $glepstatus={};
my $glepkeywords={};
while (1) {
defined ( my $number=<$gld> ) or last;
defined ( my $title=<$gld> ) or last;
defined ( my $status=<$gld> ) or last;
defined ( my $keywords=<$gld> ) or last;
chomp $number;
chomp $title;
chomp $status;
chomp $keywords;
$gleptitle{$number}=$title;
$glepstatus{$number}=$status;
$glepkeywords{$number}=$keywords;
};
close $gld;
# Loop through the referenced glep numbers, check if we already have the title,
# and if not fetch and add it.
foreach(@glepnumbers) {
my $cur=$_;
print "GLEP number $cur\n";
if ($gleptitle{$cur}) {
print " Title is \"$gleptitle{$cur}\"\n";
} else {
print " Title not yet available, fetching all the data\n";
($gleptitle{$cur},$glepstatus{$cur})=getglepdata($cur);
$glepkeywords{$cur}="";
};
};
# Write out the bug title cache again.
my @gleptitlenew= map { $_ => $gleptitle{$_} } sort keys %gleptitle;
open my $gld, '>', "decisions.gld";
foreach(@glepnumbers) {
my $cur=$_;
print $gld "$cur\n";
print $gld "$gleptitle{$cur}\n";
print $gld "$glepstatus{$cur}\n";
print $gld "$glepkeywords{$cur}\n";
};
close $gld;
# Write out the TeX input file
open my $glg, '>', "decisions.glg";
print $glg '\renewcommand{\gleptitle}[1]{%'."\n";
foreach(@glepnumbers) {
my $cur=$_;
my $title=latex_encode($gleptitle{$cur});
my @keywords=split /;/, $glepkeywords{$cur};
foreach(@keywords) {
$title=$title.'\index{'.$_.'}';
}
print $glg '\ifthenelse{\equal{#1}{'.$cur.'}}{'.$title.'}{}%'."\n";
};
print $glg '}'."\n";
close $glg;
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