Changeset 67642f7 in sasview for src/sas/qtgui/convertUI.py

Timestamp:

Jul 13, 2018 4:09:00 AM (6 years ago)

Author:

Torin Cooper-Bennun <torin.cooper-bennun@…>

Branches:

ESS_GUI, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc

Children:

ecbfddd

Parents:

18f11a6

Message:

check whether .py files are outdated before generating them from .ui or .qrc files (huge startup speed-up)

File:

• src/sas/qtgui/convertUI.py (modified) (4 diffs)

src/sas/qtgui/convertUI.py

@@ -13 +13 @@
     os.system(execute)
 
+def file_in_newer(file_in, file_out):
+    """
+    Check whether file_in is newer than file_out, if file_out exists.
+
+    Returns True if file_in is newer, or if file_out doesn't exist; False
+    otherwise.
+    """
+    try:
+        out_stat = os.stat(file_out)
+    except OSError:
+        # file_out does not exist
+        return True
+
+    in_stat = os.stat(file_in)
+
+    # simple comparison of modification time
+    return in_stat.st_mtime >= out_stat.st_mtime
+
 # look for .ui files
 for root, dirs, files in os.walk("."):
@@ -19 +37 @@
             file_in = os.path.join(root, file)
             file_out = os.path.splitext(file_in)[0]+'.py'
-            pyuic(file_in, file_out)
+            if file_in_newer(file_in, file_out):
+                print("Generating " + file_out + " ...")
+                pyuic(file_in, file_out)
 
 # RC file in UI directory
@@ -27 +47 @@
 out_file = 'main_resources_rc.py'
 
-pyrrc(os.path.join(ui_root, rc_file), os.path.join(ui_root, out_file))
+in_file = os.path.join(ui_root, rc_file)
+out_file = os.path.join(ui_root, out_file)
+
+if file_in_newer(in_file, out_file):
+    print("Generating " + out_file + " ...")
+    pyrrc(in_file, out_file)
 
 # Images
@@ -34 +59 @@
 rc_file = 'images.qrc'
 out_file = 'images_rc.py'
-pyrrc(os.path.join(images_root, rc_file), os.path.join(out_root, out_file))
+
+in_file = os.path.join(images_root, rc_file)
+out_file = os.path.join(ui_root, out_file)
+
+if file_in_newer(in_file, out_file):
+    print("Generating " + out_file + " ...")
+    pyrrc(in_file, out_file)
+