Handle deleted files in pre-commit hook

hooks/pre-commit

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 import sys
+import os
 import subprocess
 from pathlib import Path
 
@@ -8,6 +9,10 @@ staged_fnames = subprocess.check_output(["git", "diff", "--name-only", "--cached
 contains_gps = []
 
 for fname in staged_fnames:
+	try:
+		os.stat(fname)
+	except FileNotFoundError:  # deleted in this commit
+		continue
 	cont = subprocess.check_output(["exiftool", "-gpslatitude", "-gpslongitude", "-T", fname]).decode()
 	if cont != "-\t-\n":  # output where there is no result
 		contains_gps.append((fname, cont))