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#!/usr/bin/env perl
use strict;
use warnings;
# Goal: extract the comments from the top of each script file, and
# turn them into some sort of markdown-style README.md for github to nom on.
#
# Not sure how it's going to work with multiple files in a dir though. Sections?
# Change of plan! Github supports POD, so we just use Pod::Select to scrape it.
use File::Find;
use File::Spec;
use Pod::Select;
use feature qw/say/;
use Cwd;
my $overwrite = $ARGV[0];
if ($overwrite =~ m/--overwrite/) {
shift @ARGV; # remove it form list of dirs.
$overwrite = 1;
} else {
$overwrite = 0;
}
my @dirs = map { File::Spec->catdir(getcwd(), $_) } @ARGV;
die unless @dirs;
find(\&wanted, @dirs);
sub wanted {
my ($file, $dir, $path) = ($_, $File::Find::dir, $File::Find::name);
return unless $file =~ m/\.pl$/;
return if $file =~ m/^\./;
_err("processing file: $path");
create_output_file($dir, $file);
}
sub create_output_file {
my ($dir, $in_file) = @_;
my $parser = Pod::Select->new;
my $out_file = "README.pod";
my $in_file_path = File::Spec->catfile($dir, $in_file);
my $out_file_path = File::Spec->catfile($dir, $out_file);
my $sec_sep = '';
if (-f $out_file_path and not $overwrite) {
_err("$out_file_path already exists, going to append") unless $overwrite;
$sec_sep = "\n\n=for html <br />\n\n";
}
my $mode = $overwrite ? '>' : '>>';
_err("Writing to $mode $out_file_path");
open my $wfh, $mode, $out_file_path
or die "Couldn't open $out_file_path for $mode output: $!";
$parser->parse_from_file($in_file_path, $wfh);
print $wfh "\n\n=cut\n\n";
close $wfh;
}
sub _err {
my ($msg, @args) = @_;
my $str = sprintf($msg, @args);
say STDERR $str;
}
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