add open current file dir extension

extensions/fablabchemnitz/open_currentfile_dir/meta.json

@@ -0,0 +1,20 @@
+[
+  {
+    "name": "Open Current File Directory",
+    "id": "fablabchemnitz.de.open_currentfile_dir",
+    "path": "open_currentfile_dir",
+    "dependent_extensions": null,
+    "original_name": "Open Current File Directory",
+    "original_id": "fablabchemnitz.de.open_currentfile_dir",
+    "license": "GNU GPL v3",
+    "license_url": "https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.2/src/branch/master/LICENSE",
+    "comment": "Written by Mario Voigt",
+    "source_url": "https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.2/src/branch/master/extensions/fablabchemnitz/open_currentfile_dir",
+    "fork_url": null,
+    "documentation_url": "https://stadtfabrikanten.org/display/IFM/Open+Extension+Directory",
+    "inkscape_gallery_url": null,
+    "contributors": [
+      "github.com/eridur-de"
+    ]
+  }
+]

extensions/fablabchemnitz/open_currentfile_dir/open_currentfile_dir.inx

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+    <name>Open Current File Directory</name>
+    <id>fablabchemnitz.de.open_currentfile_dir</id>
+    <effect needs-live-preview="false">
+        <object-type>all</object-type>
+		<effects-menu>
+         <submenu name="FabLab Chemnitz"/>
+		</effects-menu>
+    </effect>
+    <script>
+        <command location="inx" interpreter="python">open_currentfile_dir.py</command>
+    </script>
+</inkscape-extension>

extensions/fablabchemnitz/open_currentfile_dir/open_currentfile_dir.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+
+import subprocess
+import os
+import sys
+import warnings
+import inkex
+
+DETACHED_PROCESS = 0x00000008
+
+class OpenCurrentFileDirectory(inkex.EffectExtension):
+
+    def spawnIndependentProcess(self, args):
+        warnings.simplefilter('ignore', ResourceWarning) #suppress "enable tracemalloc to get the object allocation traceback"
+        if os.name == 'nt':
+            subprocess.Popen(args, close_fds=True, creationflags=DETACHED_PROCESS)
+        else:
+            subprocess.Popen(args, start_new_session=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+        warnings.simplefilter("default", ResourceWarning)
+
+    def effect(self):
+        dir = os.path.dirname(self.document_path())
+        if dir == '':
+            inkex.utils.debug("Please save the document first!")
+        if os.name == 'nt':
+            explorer = "explorer"
+        else:
+            explorer = "xdg-open"
+        
+        args = [explorer, dir]
+        try:
+            self.spawnIndependentProcess(args)
+        except FileNotFoundError as e:
+            inkex.utils.debug(e)
+            exit(1)
+
+if __name__ == '__main__':
+    OpenCurrentFileDirectory().run()

extensions/fablabchemnitz/open_extensions_dir/meta.json

@@ -1,15 +1,15 @@
 [
   {
     "name": "Open Extension Directory",
-    "id": "fablabchemnitz.de.open_dir",
+    "id": "fablabchemnitz.de.open_extensions_dir",
-    "path": "open_dir",
+    "path": "open_extensions_dir",
     "dependent_extensions": null,
     "original_name": "Open Extension Directory",
-    "original_id": "fablabchemnitz.de.open_dir",
+    "original_id": "fablabchemnitz.de.open_extensions_dir",
     "license": "GNU GPL v3",
     "license_url": "https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.2/src/branch/master/LICENSE",
     "comment": "Written by Mario Voigt",
-    "source_url": "https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.2/src/branch/master/extensions/fablabchemnitz/open_dir",
+    "source_url": "https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.2/src/branch/master/extensions/fablabchemnitz/open_extensions_dir",
     "fork_url": null,
     "documentation_url": "https://stadtfabrikanten.org/display/IFM/Open+Extension+Directory",
     "inkscape_gallery_url": null,

extensions/fablabchemnitz/open_extensions_dir/open_extensions_dir.inx

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
     <name>Open Extension Directory</name>
-    <id>fablabchemnitz.de.open_dir</id>
+    <id>fablabchemnitz.de.open_extensions_dir</id>
     <effect needs-live-preview="false">
         <object-type>all</object-type>
 		<effects-menu>
@@ -9,6 +9,6 @@
 		</effects-menu>
     </effect>
     <script>
-        <command location="inx" interpreter="python">open_dir.py</command>
+        <command location="inx" interpreter="python">open_extensions_dir.py</command>
     </script>
 </inkscape-extension>