From 694e6ba04dffa6d032f4b784d599cf4ebb5402f4 Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Wed, 9 Jun 2021 22:40:08 +0200
Subject: Fix timestamp extraction

---
 build.py  | 11 +++++++----
 shell.nix |  2 +-
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/build.py b/build.py
index f018b94..d061efb 100755
--- a/build.py
+++ b/build.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 import jinja2
 import PIL.Image
+import subprocess
 import PIL.ImageOps
 import argparse
 import yaml
@@ -115,6 +116,7 @@ class ImageLocation:
             print(f"Removing file {fname}")
             os.remove(fname)
 
+
 class Image:
     def __init__(self, filename):
         self.name = os.path.basename(filename)
@@ -127,14 +129,15 @@ class Image:
         self.load_metadata()
 
     def load_metadata(self):
+        result = subprocess.run(["exiftool", "-s", "-s", "-s", "-DateTimeOriginal", self.filename], stdout = subprocess.PIPE)
+        taken_str = result.stdout.decode("utf-8").strip()
+
         try:
-            with PIL.Image.open(self.filename) as im:
-                taken_str = im.getexif()[36867]
-        except KeyError:
+            self.taken = datetime.strptime(taken_str, "%Y:%m:%d %H:%M:%S")
+        except ValueError:
             print(f"Could not load date from image {self.filename}")
             return
 
-        self.taken = datetime.strptime(taken_str, "%Y:%m:%d %H:%M:%S")
 
 
 def value_or_default(val, default=None):
diff --git a/shell.nix b/shell.nix
index d452969..3edf0b2 100644
--- a/shell.nix
+++ b/shell.nix
@@ -2,6 +2,6 @@
 
 pkgs.mkShell {
     buildInputs = with pythonPackages; [
-        jinja2 schema pillow pyyaml
+        jinja2 pillow pyyaml pkgs.exiftool
     ];
 }
-- 
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