moved remove_unnecessary_exif from helper script

mail2blog.lua

@@ -156,28 +156,28 @@ local function isempty(s)
   return s == nil or s == ''
 end
 
----------------------------------------------------------------
--- helper functions to access darktable feature via user interface
--- use event handling helper functions to wait for pixel pipe
--- processing to complete
-
-local function numberToString(number, nilReplacement, nanReplacement)
-  -- convert given number to string
-  -- return 'not a number' and 'nil' as '0/0'
-  -- log output equals to dt.gui.action command and parameters
-  if (number ~= number) then
-    return nanReplacement or '0/0'
-  end
-
-  if (number == nil) then
-    return nilReplacement or '0/0'
+local function remove_unneeded_exif_values ( jpeg_file )
+  local tags_to_remove = {
+    "ModifyDate", "DateTimeOriginal", "CreateDate", "DateCreated",
+    "TimeCreated", "GPSTimeStamp", "GPSDateStamp", "GPSDateTime",
+    "IFD0:*", "IFD1:*"
+  }
+  
+  local args = {"-overwrite_original"}
+  for _, tag in ipairs(tags_to_remove) do
+    table.insert(args, "-" .. tag .. "=")
   end
-
-  -- some digits with dot
-  local result = string.format('%.4f', number)
-  result = string.gsub(result, ',', '.')
-
-  return result
+  table.insert(args, "-FileModifyDate<FileModifyDate")
+  table.insert(args, filename)
+  
+  --run_exiftool( jpeg_file .. " " .. table.concat(args, " ") )
+  local exiftoolbinary = get_executable("exiftoolbinary", "exiftool")
+  run_cmd = exiftoolbinary..' '..jpeg_file..' '.. table.concat(args, " ")
+  LogInfo(string.format("Running %s", run_cmd))
+  local job = dt.gui.create_job(string.format("Running %s", run_cmd), true, stop_job)
+  resp = dtsys.external_command(run_cmd)
+  job.valid = false
+ return nil  
 end
 
 -- Function to replace German umlauts and sanitize the filename
@@ -242,6 +242,7 @@ local publication_button = dt.new_widget("button")
             run_exiftool( df.sanitize_filename(i.path..PS..i.filename), tmp_exported, '-exif:all --subifd:all --Orientation -overwrite_original' )
             -- copy exif data from xmp file
             run_exiftool( df.sanitize_filename(i.sidecar) , tmp_exported, '-xmp:all -exif:all --subifd:all -overwrite_original' )
+            remove_unneeded_exif_values(tmp_exported)
             -- run mailscript
             local spring2lifescript = get_executable("spring2lifescript", "spring2life script")
             run_cmd = spring2lifescript .. " " .. tmp_exported