From 8a848fa2b1c67829c69001bbe5bff2cb182c3588 Mon Sep 17 00:00:00 2001
From: Sadeep Madurange <sadeep@asciimx.com>
Date: Thu, 9 Apr 2026 23:38:05 +0800
Subject: wip: use sub in scan_tree().

---
 vcx | 60 ++++++++++++++++++++++--------------------------------------
 1 file changed, 22 insertions(+), 38 deletions(-)

diff --git a/vcx b/vcx
index dbcd117..8682be8 100644
--- a/vcx
+++ b/vcx
@@ -329,68 +329,52 @@ sub hash_file_content {
 
 sub scan_tree {
 	my $cb = pop @_; 
-	my @paths = @_;
 
 	my @stack;
-	my @input_files;
 
-	# If input contains files, process them first
-	foreach my $p (@paths) {
-		my @p_stats = lstat($p);	
-		unless (@p_stats) {
-			warn "Can't lstat '$p': $!\n";
-			next;
-		}
-		if (-f _ || -l _) {
-			push @input_files, {
-				path  => $p =~ s|^\./||r,
-				size  => $p_stats[7],
-				mtime => $p_stats[9],
+	my $collect = sub {
+		my ($path, $files) = @_;
+		my @stat = lstat($path) or (warn("lstat '$path': $!\n") and return);
+		if (-d _) {
+			push @stack, $path;
+		} elsif (-f _ || -l _) {
+			push @$files, {
+				path  => $path =~ s|^\./||r,
+				size  => $stat[7],
+				mtime => $stat[9],
 			};
-		} elsif (-d _) {
-			push @stack, $p;
 		}
-	}
+	};
 
+	my @input_files;
+	$collect->($_, \@input_files) for @_;
 	if (@input_files) {
-		@input_files = sort { $a->{path} cmp $b->{path} } @input_files;
+		@input_files = sort { $a->{path} cmp $b->{path} } @input_files;	
 		$cb->('.', \@input_files);
 	}
 
 	while (@stack) {
 		my $dir = pop @stack;
 		my $dh;
-
 		unless (opendir($dh, $dir)) { 
 			warn "Can't open $dir\n"; 
 			next; 
 		}
 
 		my @files;
-		my @subdirs;	
+		my $subdir_idx = @stack; # Track where this level's subdirs start
 		while (my $ent = readdir($dh)) {
 			next if $ent eq '.' or $ent eq '..' or $ent eq REPO;
-			my $path = File::Spec->catfile($dir, $ent) =~ s|^\./||r;
-			my @stats = lstat($path);
-			unless (@stats) { 
-				warn "Can't lstat $dir\n";
-				next; 
-			}
-
-			if (-f _ || -l _) {
-				push @files, {
-					path  => $path,
-					size  => $stats[7],
-					mtime => $stats[9],
-				};
-			} elsif (-d $path) {
-				push @subdirs, $path;
-			}
+			$collect->(File::Spec->catfile($dir, $ent), \@files);
 		}
-		closedir($dh);
 
+		closedir($dh);
 		@files = sort { $a->{path} cmp $b->{path} } @files;
 		$cb->($dir, \@files) if @files;
-		push @stack, sort { $b cmp $a } @subdirs;
+
+		if (@stack > $subdir_idx) {
+			my @subdirs = splice(@stack, $subdir_idx);
+			push @stack, sort { $b cmp $a } @subdirs;
+		}
 	}
 }
-- 
cgit v1.2.3