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#!/usr/bin/env perl
use strict;
use warnings;
use File::Slurp;
use Text::Markdown "markdown";
use Time::Piece;
my $BASE_URL="https://blog.vdouillet.fr/";
sub cat {
my ($inFile, $outHandle) = @_;
open my $inHandle, "<", $inFile;
while(<$inHandle>) {
print $outHandle $_;
}
close $inHandle;
}
sub page {
my ($pageFile, $pageTitle, $pageContent, $pageType, $id) = @_;
unless(defined $pageType) {
$pageType = "body"; # default page type
}
open my $outHandle, ">", "output/$pageFile";
# Write header and insert page title
open my $inHandle, "<", "template/header.html";
while(<$inHandle>) {
$_ =~ s/\$title/$pageTitle/;
print $outHandle $_;
}
close $inHandle;
# Write content and footer
if(defined $id) {
print $outHandle "<$pageType id=\"$id\">";
}
else {
print $outHandle "<$pageType>";
}
print $outHandle $pageContent;
print $outHandle "</$pageType>";
if($pageType eq "article") {
cat "template/back.html", $outHandle;
}
cat "template/footer.html", $outHandle;
close $outHandle;
# Create gzip version
`gzip -kf output/$pageFile`;
}
# Build about
print "Building about\n";
my $aboutContent = read_file "static/about.md";
$aboutContent = markdown $aboutContent;
page "about.html", "About", $aboutContent;
# Build articles
my @articleList;
while(<*.md>) {
my $articleFile = $_;
print "Processing $articleFile\n";
# Extract article title from the title in MD article
open my $articleHandle, "<", $articleFile;
my $headLine = <$articleHandle>;
$headLine = substr $headLine, 2, -1;
# Extract description : first paragraph of the article
my $description = "";
while(my $line = <$articleHandle>) {
if($. == 5) {
$description = $line;
last;
}
}
$description =~ s/\R//; # remove any new line
$description .= ".."; # to have "..." at the end of description
close $articleHandle;
# Extract output file name: MD file name without the date
my $pageFile = substr $articleFile, 9, -3;
$pageFile .= ".html";
# Build article
my $articleContent = read_file $articleFile;
$articleContent = markdown $articleContent;
page $pageFile, $headLine, $articleContent, "article";
# Add article to index
my $year = substr $articleFile, 0, 4;
my $month = substr $articleFile, 4, 2;
my $day = substr $articleFile, 6, 2;
my $articleData = { date => "$month-$day-$year", title => $headLine, address => $pageFile, description => $description };
push @articleList, $articleData;
}
# Build index with article list in reverse (most recent first)
print "Building index\n";
my $indexContent = read_file "static/index.md";
for(my $i = $#articleList; $i >= 0; $i--) {
$indexContent .= "* [$articleList[$i]{date} $articleList[$i]{title}]($articleList[$i]{address} \"$articleList[$i]{title}\")\n";
}
$indexContent = markdown $indexContent;
page "index.html", "blog.vdouillet.fr", $indexContent, "body", "index-body";
# Build RSS feed with article list in reverse (most recent first)
print "Building RSS feed\n";
open my $outHandle, ">", "output/rss.xml";
# Write channel info and insert publication and build dates
open my $inHandle, "<", "template/rss.xml";
my $pubDate = Time::Piece->strptime($articleList[$#articleList]{date}, "%m-%d-%Y"); # Last article date
$pubDate = $pubDate->strftime();
my $buildDate = gmtime->strftime(); # Current date
while(<$inHandle>) {
$_ =~ s/\$link/$BASE_URL/;
$_ =~ s/\$pubDate/$pubDate/;
$_ =~ s/\$lastBuildDate/$buildDate/;
print $outHandle $_;
}
close $inHandle;
for(my $i = $#articleList; $i >= 0; $i--) {
open my $inHandle, "<", "template/rss-item.xml";
my $url = $BASE_URL . $articleList[$i]{address};
my $pubDate = Time::Piece->strptime($articleList[$i]{date}, "%m-%d-%Y");
$pubDate = $pubDate->strftime();
while(<$inHandle>) {
$_ =~ s/\$title/$articleList[$i]{title}/;
$_ =~ s/\$link/$url/;
$_ =~ s/\$description/$articleList[$i]{description}/;
$_ =~ s/\$guid/$articleList[$i]{address}/;
$_ =~ s/\$pubDate/$pubDate/;
print $outHandle $_;
}
close $inHandle;
}
print $outHandle "</channel>\n</rss>\n";
close $outHandle;
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