[WIP] Bare bones Linux port

cddagl/__main__.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: MIT
 
+from cddagl.platform_api import is_windows
 def fix_pywin32_loading():
     try:
         import pywintypes
@@ -11,7 +12,8 @@ def fix_pywin32_loading():
         sys.path.append(r'win32\lib')
         import pywin32_bootstrap
 
-fix_pywin32_loading()
+if is_windows():
+    fix_pywin32_loading()
 
 import cddagl.launcher
 cddagl.launcher.run_cddagl()

cddagl/functions.py

@@ -8,8 +8,11 @@
 import traceback
 from io import StringIO
 
-import winutils
-from pywintypes import com_error
+from cddagl.platform_api.utils import is_windows
+
+if is_windows():
+    import winutils
+    from pywintypes import com_error
 
 import cddagl
 from cddagl.i18n import proxy_gettext as _

cddagl/launcher.py

@@ -27,12 +27,15 @@
 from cddagl.sql.functions import init_config, get_config_value, config_true
 from cddagl.ui.views.dialogs import ExceptionWindow
 from cddagl.ui.views.tabbed import TabbedWindow
-from cddagl.win32 import get_ui_locale, SingleInstance, write_named_pipe
+from cddagl.platform_api import get_ui_locale, SingleInstance, write_named_pipe, is_windows
 
 logger = logging.getLogger('cddagl')
 
 
 def init_single_instance():
+    if not is_windows():
+        return None
+
     if not config_true(get_config_value('allow_multiple_instances', 'False')):
         single_instance = SingleInstance()
 

cddagl/platform_api/PosixNotImplementedError.py

@@ -0,0 +1,4 @@
+class PosixNotImplementedError(NotImplementedError):
+    def __init__(self):
+        default_message = 'Not implemented for posix!'
+        super().__init__(default_message)

cddagl/platform_api/__init__.py

@@ -0,0 +1,9 @@
+from .utils import is_windows
+
+if is_windows():
+    from .win32 import *
+    from pywintypes import error as PyWinError
+else:
+    from .posix import *
+    from cddagl.posix_polyfill.pywintypes import PyWinError
+

cddagl/platform_api/posix.py

@@ -0,0 +1,62 @@
+import os
+
+import psutil
+
+from cddagl.platform_api.PosixNotImplementedError import PosixNotImplementedError
+
+
+def get_ui_locale():
+    return None
+
+
+def process_id_from_path(processName):
+    '''
+    Get a list of all the PIDs of all the running processes whose name contains
+    the given string processName
+    '''
+    pids = []
+    # Iterate over the all the running process
+    for proc in psutil.process_iter():
+        try:
+            if processName.lower() in proc.exe().lower():
+                pids.append(proc.pid)
+        except (psutil.NoSuchProcess, psutil.AccessDenied, psutil.ZombieProcess):
+            pass
+    if len(pids):
+        return pids[0]
+    else:
+        return None
+
+
+def get_downloads_directory():
+    raise PosixNotImplementedError()
+
+
+def find_process_with_file_handle(path):
+    raise PosixNotImplementedError()
+
+
+def activate_window():
+    raise PosixNotImplementedError()
+
+
+def wait_for_pid():
+    raise PosixNotImplementedError()
+
+
+def get_documents_directory():
+    return os.path.join(os.path.expanduser('~'))
+
+
+def write_named_pipe():
+    raise PosixNotImplementedError()
+
+
+class SimpleNamedPipe:
+    def __int__(self, name):
+        raise PosixNotImplementedError()
+
+
+class SingleInstance:
+    def __int__(self):
+        raise PosixNotImplementedError()

cddagl/platform_api/utils.py

@@ -0,0 +1,5 @@
+import platform
+
+
+def is_windows():
+    return platform.system() == "Windows"