[path] make toolbit reject invalid filenames

help user create toolbit working location

src/Mod/Path/Gui/Resources/preferences/PathJob.ui

@@ -142,8 +142,8 @@
        <rect>
         <x>0</x>
         <y>0</y>
-        <width>424</width>
-        <height>537</height>
+        <width>366</width>
+        <height>330</height>
        </rect>
       </property>
       <attribute name="label">
@@ -348,8 +348,8 @@
        <rect>
         <x>0</x>
         <y>0</y>
-        <width>407</width>
-        <height>570</height>
+        <width>319</width>
+        <height>528</height>
        </rect>
       </property>
       <attribute name="label">
@@ -655,6 +655,9 @@
        </item>
        <item>
         <widget class="QCheckBox" name="toolsOpenLastLibrary">
+         <property name="toolTip">
+          <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Causes the toollibrary manager to remember last directory.   This ONLY affects legacy tools. &lt;/p&gt;&lt;p&gt;This control will be deprecated and removed in future version&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+         </property>
          <property name="text">
           <string>Remember last library</string>
          </property>

src/Mod/Path/PathScripts/PathToolBitGui.py

@@ -181,16 +181,31 @@ class ToolBitGuiFactory(PathToolBit.ToolBitFactory):
         FreeCAD.ActiveDocument.commitTransaction()
         return tool
 
+def isValidFile(filename):
+    print(filename)
+    try:
+        with open(filename, "w") as tempfile:
+            return True
+    except:
+        return False
+
 
 def GetNewToolFile(parent=None):
     if parent is None:
         parent = QtGui.QApplication.activeWindow()
+
     foo = QtGui.QFileDialog.getSaveFileName(parent, 'Tool',
                                             PathPreferences.lastPathToolBit(),
                                             '*.fctb')
     if foo and foo[0]:
-        PathPreferences.setLastPathToolBit(os.path.dirname(foo[0]))
-        return foo[0]
+        if not isValidFile(foo[0]):
+            msgBox = QtGui.QMessageBox()
+            msg = translate("Path", "Invalid Filename", None)
+            msgBox.setText(msg)
+            msgBox.exec_()
+        else:
+            PathPreferences.setLastPathToolBit(os.path.dirname(foo[0]))
+            return foo[0]
     return None
 
 

src/Mod/Path/PathScripts/PathToolBitLibraryGui.py

@@ -38,6 +38,7 @@ import os
 import glob
 import uuid as UUID
 from functools import partial
+import shutil
 
 # PathLog.setLevel(PathLog.Level.DEBUG, PathLog.thisModule())
 # PathLog.trackModule(PathLog.thisModule())
@@ -360,6 +361,9 @@ class ToolBitLibrary(object):
 
     def __init__(self):
         PathLog.track()
+        if not self.checkWorkingDir():
+            return
+
         self.factory = ModelFactory()
         self.temptool = None
         self.toolModel = PySide.QtGui.QStandardItemModel(0, len(self.columnNames()))
@@ -371,6 +375,55 @@ class ToolBitLibrary(object):
         self.setupUI()
         self.title = self.form.windowTitle()
 
+    def checkWorkingDir(self):
+        # users shouldn't use the example toolbits and libraries.
+        # working directory should be writable
+        PathLog.track()
+
+        workingdir = os.path.dirname(PathPreferences.lastPathToolLibrary())
+        defaultdir = os.path.dirname(PathPreferences.pathDefaultToolsPath())
+
+        dirOK = lambda : workingdir != defaultdir and (os.access(workingdir, os.W_OK))
+
+        if dirOK():
+            return True
+
+        qm = PySide.QtGui.QMessageBox
+        ret = qm.question(None,'', "Please set up Toolbit Working Directory", qm.Ok | qm.Cancel)
+
+        if ret == qm.Cancel:
+            return False
+
+        msg = translate("Path", "Choose a writable location for your toolbits", None)
+        while not dirOK():
+            workingdir = PySide.QtGui.QFileDialog.getExistingDirectory(None, msg,
+                    PathPreferences.filePath())
+
+        PathPreferences.setLastPathToolLibrary("{}/Library".format(workingdir))
+
+        subdirlist = ['Bit', 'Library', 'Shape']
+        mode = 0o777
+        for dir in subdirlist:
+            subdir = "{}/{}".format(workingdir, dir)
+            if not os.path.exists(subdir):
+                qm = PySide.QtGui.QMessageBox
+                ret = qm.question(None,'', "Toolbit Working directory {} should contain a '{}' subdirectory. Create it?".format(workingdir, dir), qm.Yes | qm.No)
+
+                if ret == qm.Yes:
+                    os.mkdir(subdir, mode)
+                    qm = PySide.QtGui.QMessageBox
+                    ret = qm.question(None,'', "Copy example files to new {} directory?".format(dir), qm.Yes | qm.No)
+                    if ret == qm.Yes:
+                        src="{}/{}".format(defaultdir, dir)
+                        src_files = os.listdir(src)
+                        for file_name in src_files:
+                            full_file_name = os.path.join(src, file_name)
+                            if os.path.isfile(full_file_name):
+                                shutil.copy(full_file_name, subdir)
+
+        return True
+
+
     def toolBitNew(self):
         PathLog.track()