From 97e47d1d0b456ad7cbc5f2c8f5bac5ba5904d1ec Mon Sep 17 00:00:00 2001
From: Vincent Riquer <vincent+prog.atom@riquer.fr>
Date: Sun, 9 Nov 2025 02:06:02 +0100
Subject: [PATCH] allow ignoring microseconds in file timestamps

---
 doc/config            | 5 +++++
 doc/example.cfg       | 3 +++
 lib/config/getGeneral | 3 +++
 lib/config/write      | 3 +++
 lib/files/getFiles    | 9 ++++++++-
 5 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/doc/config b/doc/config
index 9068e64..0fe529d 100644
--- a/doc/config
+++ b/doc/config
@@ -39,6 +39,11 @@ Sections:
   * debug <level>: Integer. Currently defined values:
       * 1: few additional status informations.
       * 3: log SQL queries.
+  * skip-timestamp-microsec <bool>: Ignore microsecond precision in timestamps.
+      Microsec precise timestamps are still stored as-is in the DB, this
+      setting just impacts comparisons when determining if a file has been
+      changed.
+
 
 [source]
   This section defines where are the files you want transcoded.
diff --git a/doc/example.cfg b/doc/example.cfg
index ffea7f7..0e76b61 100644
--- a/doc/example.cfg
+++ b/doc/example.cfg
@@ -34,6 +34,9 @@ database		/home/user/.local/share/AtOM/atom.db
 #    3: log SQL queries to <temporary-directory>/debug.log
 #debug			1
 
+# * skip-timestamp-microsec: Ignore microsecond precision in timestamps.
+skip-timestamp-microsec	0
+
 
 [source]
 # This section defines where are the files you want transcoded.
diff --git a/lib/config/getGeneral b/lib/config/getGeneral
index 1e7797d..c5d5f2e 100644
--- a/lib/config/getGeneral
+++ b/lib/config/getGeneral
@@ -75,6 +75,9 @@ getConfigGeneral() {
 		'database')
 			database="$value"
 		;;
+		'skip-timestamp-microsec')
+			skip_us_timestamp="$value"
+		;;
 		debug)
 			(( value > debug )) && debug=$value
 		;;
diff --git a/lib/config/write b/lib/config/write
index f4954ad..e436231 100644
--- a/lib/config/write
+++ b/lib/config/write
@@ -33,6 +33,9 @@ database		$database
 # * debug <level>: Integer.
 #debug			1
 
+# * skip-timestamp-microsec: Ignore microsecond precision in timestamps.
+skip-timestamp-microsec	${skip_us_timestamp:-0}
+
 
 [source]
 # This section defines where are the files you want transcoded.
diff --git a/lib/files/getFiles b/lib/files/getFiles
index f6c28db..72a21d8 100644
--- a/lib/files/getFiles
+++ b/lib/files/getFiles
@@ -10,10 +10,17 @@ getFiles() {
 	echo 'BEGIN TRANSACTION;' >&3
 	while read time size filename
 	do
+		if (( skip_us_timestamp ))
+		then
+			compare_time=${time%.*}.%
+		else
+			compare_time=$time
+		fi
 		if ! Select source_files id >/dev/null <<-EOWhere
 				filename = $filename
 				mime_type > 0
-				last_change = $time
+				last_change LIKE $compare_time
+				size = $size
 			EOWhere
 		then
 			mimetype=$(file -b --mime-type "$sourcepath/$filename")