From c56f91da2c65d342d006edf02c4d4a4e80f2a171 Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Thu, 12 Oct 2023 11:04:19 -0700
Subject: [PATCH] Write a warning if an image doesn't have an orientation
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Default to 0º orientation.
---
 .../partials/images/orientation_angle.html    | 27 +++++++++++--------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/layouts/partials/images/orientation_angle.html b/layouts/partials/images/orientation_angle.html
index 480cfd7..7ab2a57 100644
--- a/layouts/partials/images/orientation_angle.html
+++ b/layouts/partials/images/orientation_angle.html
@@ -1,13 +1,18 @@
-{{ $orientation := .Exif.Tags.Orientation }}
-{{/* EXIF orientation is specified as an integer corresponding to a 90º rotation. */}}
-{{ $angle := 0 }}
-{{ if in (slice 1 2) $orientation }}
-    {{ $orientation = 0 }}
-{{ else if in (slice 3 4) $orientation }}
-    {{ $orientation = 180 }}
-{{ else if in (slice 5 6) $orientation }}
-    {{ $orientation = 90 }}
-{{ else if in (slice 7 8) $orientation }}
-    {{ $orientation = 270 }}
+{{ $orientation := 0 }}
+
+{{ with (int .Exif.Tags.Orientation) }}
+    {{/* EXIF orientation is specified as an integer corresponding to a 90º rotation. */}}
+    {{ if in (slice 1 2) . }}
+        {{ $orientation = 0 }}
+    {{ else if in (slice 3 4) . }}
+        {{ $orientation = 180 }}
+    {{ else if in (slice 5 6) . }}
+        {{ $orientation = 90 }}
+    {{ else if in (slice 7 8) . }}
+        {{ $orientation = 270 }}
+    {{ end }}
+{{ else }}
+    {{ warnf "Image missing orientation: %s" . }}
 {{ end }}
+
 {{ return $orientation }}