Fix recognition of Mac OS X based systems

Previously, Mac OS X was recognized during py2app invocation, as well as runtime
by comparison of os.name with 'macos'.  The value of os.name reports as 'posix'
under more recent version of Python built on Mac OS X.  Now, the recognition is
instead done by comparing sys.platform with 'darwin'.

issue2258
review171004
(transplanted from d2d9d6ec6da433a5d7df4b07e089f21536b9e4fb)

setup.py

@@ -89,8 +89,7 @@ if os.name == 'nt':
         args['windows'][0]['other_resources'] = [(24, 1, manifest)]
 
 
-elif os.name == 'mac' \
-        or (hasattr(os, 'uname') and os.uname()[0] == 'Darwin'):
+elif sys.platform == 'darwin':
     import py2app
     from modulegraph.find_modules import PY_SUFFIXES
     PY_SUFFIXES.append('')
@@ -253,8 +252,7 @@ if os.name == 'nt':
             Popen([makensis, "/DVERSION=" + VERSION,
                 str(os.path.join(os.path.dirname(__file__),
                     'setup-single.nsi'))]).wait()
-elif os.name == 'mac' \
-        or (hasattr(os, 'uname') and os.uname()[0] == 'Darwin'):
+elif sys.platform == 'darwin':
     def find_gtk_dir():
         for directory in os.environ['PATH'].split(':'):
             if not os.path.isdir(directory):

tryton/common/common.py

@@ -376,8 +376,7 @@ def file_open(filename, type, parent, print_p=False):
                     save_p.close()
                     file_p.close()
         return
-    elif os.name == 'mac' or \
-            (hasattr(os, 'uname') and os.uname()[0] == 'Darwin'):
+    elif sys.platform == 'darwin':
         pid = os.fork()
         if not pid:
             pid = os.fork()

tryton/config.py

@@ -30,8 +30,7 @@ if not os.path.isdir(get_config_dir()):
 def find_path(progs, args):
     if os.name == 'nt':
         return ''
-    if os.name == 'mac' or \
-            (hasattr(os, 'uname') and os.uname()[0] == 'Darwin'):
+    if sys.platform == 'darwin':
         return ''
     paths = [x for x in os.environ['PATH'].split(':')
             if os.path.isdir(x)]

tryton/gui/main.py

@@ -87,7 +87,7 @@ class Main(object):
                 gtk.gdk.CONTROL_MASK)
         gtk.accel_map_add_entry('<tryton>/File/Quit', gtk.keysyms.Q,
                 gtk.gdk.CONTROL_MASK)
-        if os.name != 'mac':
+        if sys.platform != 'darwin':
             gtk.accel_map_add_entry('<tryton>/User/Menu Reload', gtk.keysyms.T,
                     gtk.gdk.MOD1_MASK)
         gtk.accel_map_add_entry('<tryton>/User/Menu Toggle', gtk.keysyms.T,
@@ -191,8 +191,7 @@ class Main(object):
         self.sig_toolbar_show()
         self.sig_statusbar_show()
 
-        if os.name in ('nt', 'mac') or \
-                (hasattr(os, 'uname') and os.uname()[0] == 'Darwin'):
+        if os.name == 'nt' or sys.platform == 'darwin':
             # Disable actions, on win32 we use os.startfile
             # and on mac we use /usr/bin/open
             self.menuitem_actions.set_sensitive(False)

tryton/gui/window/view_form/view/list.py

@@ -351,9 +351,7 @@ class ViewList(ParserView):
         elif self.widget_tree.sequence:
             dnd = True
         # Disable DnD on mac until it is fully supported
-        if os.name == 'mac':
-            dnd = False
-        elif hasattr(os, 'uname') and os.uname()[0] == 'Darwin':
+        if sys.platform == 'darwin':
             dnd = False
         if screen.readonly:
             dnd = False
@@ -480,8 +478,7 @@ class ViewList(ParserView):
         # Don't use set_with_data on mac see:
         # http://bugzilla.gnome.org/show_bug.cgi?id=508601
         if selection.count_selected_rows() < 100 \
-                or os.name == 'mac' \
-                or (hasattr(os, 'uname') and os.uname()[0] == 'Darwin'):
+                or sys.platform == 'darwin':
             data = []
             selection.selected_foreach(self.copy_foreach, data)
             clipboard.set_text('\n'.join(data))

tryton/translate.py

@@ -8,6 +8,7 @@ from version import PACKAGE
 from tryton.client import CURRENT_DIR, PREFIX
 import logging
 import gtk
+import sys
 
 _ = gettext.gettext
 
@@ -169,8 +170,7 @@ def setlang(lang=None, locale_dict=None):
             lang2 = lang
             if os.name == 'nt':
                 lang2 = _LOCALE2WIN32.get(lang, lang)
-            elif os.name == 'mac' or \
-                    (hasattr(os, 'uname') and os.uname()[0] == 'Darwin'):
+            elif sys.platform == 'darwin':
                 encoding = 'UTF-8'
             # ensure environment variable are str
             lang, lang2, encoding = str(lang), str(lang2), str(encoding)