From a9547e4ca04526fa477b4e73ea2e74b82ca4fdca Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Thu, 20 May 2021 21:41:05 +0200
Subject: support passing local file/dir URI instead of CalDAV URIs

---
 bin/events2md.pl | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/bin/events2md.pl b/bin/events2md.pl
index 7fd8a5e..9423133 100755
--- a/bin/events2md.pl
+++ b/bin/events2md.pl
@@ -19,6 +19,7 @@ use Log::Any::Adapter;
 use URI;
 use IO::Prompter;
 use Cal::DAV;
+use Data::ICal;
 use iCal::Parser;
 use List::Util qw(first);
 use List::MoreUtils qw(nsort_by sort_by);
@@ -51,7 +52,7 @@ $base_uri = URI->new($BASE_URI)
 $base_uri
 	or $log->fatal('required base URI not provided') && exit 2;
 $base_uri->scheme
-	or $log->fatal('bad base URI: must be an internet URI') && exit 2;
+	or $base_uri->scheme('file');
 if ( $base_uri->scheme eq 'http' or $base_uri->scheme eq 'https' ) {
 	$log->infof( 'will use base URI %s', $base_uri );
 	$calendar_uri = URI->new( $CALENDAR_URI || $base_uri );
@@ -81,8 +82,8 @@ if ( $base_uri->scheme eq 'http' or $base_uri->scheme eq 'https' ) {
 	}
 	$log->debugf( 'resolved credentials for user %s', $user );
 
-	# fetch and parse calendar data
-	$log->debug('fetch and parse calendar data...');
+	# fetch and parse CalDAV calendar data
+	$log->debug('fetch and parse CalDAV calendar data...');
 	$calendar = Cal::DAV->new(
 		user => $user,
 		pass => $pass,
@@ -91,8 +92,22 @@ if ( $base_uri->scheme eq 'http' or $base_uri->scheme eq 'https' ) {
 	$calendar->get($calendar_uri)
 		if $calendar_uri;
 }
-else {
-	$log->fatal('bad base URI: must be an internet URI') && exit 2;
+elsif ( $base_uri->scheme eq 'file' ) {
+	defined $base_uri->file
+		or $log->fatal('bad base URI: cannot open file') && exit 2;
+	$log->infof( 'will use base URI %s', $base_uri );
+
+	# parse local calendar data
+	$log->debug('parse local calendar data...');
+	my $path = path( $base_uri->file );
+	if ( $path->is_file ) {
+		$calendar = Data::ICal->new( data => $path->slurp_raw );
+	}
+	else {
+		my $data;
+		$path->visit( sub { $data .= $_->slurp_raw if $_->is_file } );
+		$calendar = Data::ICal->new( data => $data );
+	}
 }
 if ( $log->is_trace ) {
 	use DDP;
-- 
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