better scandir

* breadth-first, not depth-first
* emits an `End` once all files that were there at the start have been
  emit-ed

1 files changed, 5 insertions, 2 deletions

diff --git a/lib/MaildirIndexer/Store.rakumod b/lib/MaildirIndexer/Store.rakumod
index 502d60e..03492f7 100644
--- a/lib/MaildirIndexer/Store.rakumod
+++ b/lib/MaildirIndexer/Store.rakumod
@@ -3,6 +3,7 @@ unit class MaildirIndexer::Store;
 use MaildirIndexer::LogTimelineSchema;
 use MaildirIndexer::Index;
 use MaildirIndexer::Parser;
+use MaildirIndexer::ScanDir;
 
 has Lock $!lock .= new;
 has MaildirIndexer::Index @.indices is required;
@@ -20,12 +21,14 @@ method start(--> Nil) {
         start react {
             CATCH { warn $_ };
             whenever $.file-channel -> $file {
-                if $file.e && $file.f {
+                when $file ~~ MaildirIndexer::ScanDir::End {
+                }
+                when $file ~~ :e & :f {
                     MaildirIndexer::LogTimelineSchema::Store::Add.log: :file($file.path), -> {
                         self.add-file($file);
                     }
                 }
-                elsif !$file.e {
+                when $file ~~ :!e {
                     MaildirIndexer::LogTimelineSchema::Store::Rm.log: :file($file.path), -> {
                         self.del-file($file);
                     }