sync moved to modules

modules/sync/utils/image.py

@@ -0,0 +1,35 @@
+import asyncio
+from subprocess import call
+
+
+async def image_magick_resize(input_file, output_file, size, quality=85):
+    interlace = 'Plane'
+    s = '%dx%d' % size
+
+    cmd = [
+        '/usr/local/bin/convert',
+        '"%s"' % input_file,
+
+        '-strip',
+        '-interlace', interlace,
+        '-auto-orient',
+        '-resize', s,
+        '-quality', str(quality),
+
+        '"%s"' % output_file,
+    ]
+
+    cmd = ' '.join(cmd)
+    process = await asyncio.create_subprocess_shell(cmd)
+    await process.wait()
+
+
+async def image_magick_pdf_to_img(input_file, output_file):
+    call([
+        '/usr/local/bin/gs',
+        '-q',
+        '-sDEVICE=jpeg',
+        '-dLastPage=1',
+        '-o', output_file,
+        input_file,
+    ])