detect shell and make it configurable

config/settings/espeak.settings.conf

@@ -178,6 +178,8 @@ commandPath=
 #fenrirFontSize = the fontsize
 attributeFormatString=Background fenrirBGColor,Foreground fenrirFGColor,fenrirUnderline,fenrirBold,fenrirBlink, Font fenrirFont,Fontsize fenrirFontSize
 autoPresentIndent=False
+# shell for PTY emulatiun (empty = default shell)
+shell=
 
 [focus]
 cursor=True

config/settings/settings.conf

@@ -186,6 +186,8 @@ commandPath=
 #fenrirFontSize = the fontsize
 attributeFormatString=Background fenrirBGColor,Foreground fenrirFGColor,fenrirUnderline,fenrirBold,fenrirBlink, Font fenrirFont,Fontsize fenrirFontSize
 autoPresentIndent=False
+# shell for PTY emulatiun (empty = default shell)
+shell=
 
 [focus]
 #follow the text cursor

config/settings/settings.conf.example

@@ -187,6 +187,8 @@ commandPath=
 #fenrirFontSize = the fontsize
 attributeFormatString=Background fenrirBGColor,Foreground fenrirFGColor,fenrirUnderline,fenrirBold,fenrirBlink, Font fenrirFont,Fontsize fenrirFontSize
 autoPresentIndent=False
+# shell for PTY emulatiun (empty = default shell)
+shell=
 
 [focus]
 #follow the text cursor

config/settings/settings.conf.storm

@@ -132,6 +132,8 @@ commandPath=
 #fenrirFontSize = the fontsize
 attributeFormatString=Background fenrirBGColor,Foreground fenrirFGColor,fenrirUnderline,fenrirBold,fenrirBlink, Font fenrirFont,Fontsize fenrirFontSize
 autoPresentIndent=False
+# shell for PTY emulatiun (empty = default shell)
+shell=
 
 [focus]
 #follow the text cursor

config/settings/speech-dispatcher.settings.conf

@@ -186,6 +186,8 @@ commandPath=
 #fenrirFontSize = the fontsize
 attributeFormatString=Background fenrirBGColor,Foreground fenrirFGColor,fenrirUnderline,fenrirBold,fenrirBlink, Font fenrirFont,Fontsize fenrirFontSize
 autoPresentIndent=False
+# shell for PTY emulatiun (empty = default shell)
+shell=
 
 [focus]
 #follow the text cursor

src/fenrirscreenreader/core/fenrirManager.py

@@ -41,6 +41,7 @@ class fenrirManager():
         parser.add_argument('-d', '--debug',  action='store_true', help='Turns on Debugmode') 
         parser.add_argument('-p', '--print',  action='store_true', help='Print debug messages on screen')                                         
         parser.add_argument('-e', '--emulation',  action='store_true', help='Use PTY emulation')                                                 
+        parser.add_argument('-f', '--femulation', metavar='SHELL', default='', help='Use PTY emulation')        
         try:
             args = parser.parse_args()
         except Exception as e:

src/fenrirscreenreader/core/settingsData.py

@@ -74,6 +74,7 @@ settingsData = {
   'commandPath': '/usr/share/fenrir/commands',
   'attributeFormatString': 'Background fenrirBGColor,Foreground fenrirFGColor,fenrirUnderline,fenrirBold,fenrirBlink, Font fenrirFont,Fontsize fenrirFontSize',
   'autoPresentIndent': False,
+  'shell': '',
 },
 'focus':{
   'cursor': True,

src/fenrirscreenreader/screenDriver/ptyDriver.py

@@ -57,6 +57,7 @@ class driver(screenDriver):
         signal.signal(signal.SIGWINCH, self.handleSigwinch)
     def initialize(self, environment):
         self.env = environment
+        self.command = self.env['runtime']['settingsManager'].getSetting('general','shell')
         self.env['runtime']['processManager'].addCustomEventThread(self.terminalEmulation)
     def getCurrScreen(self):
         self.env['screen']['oldTTY'] = '1'
@@ -65,7 +66,47 @@ class driver(screenDriver):
     def injectTextToScreen(self, msgBytes, screen = None):
         #os.write(p_out.fileno(), msgBytes)
         pass
-                
+    def getShell(self):
+        shell = ''
+        try:
+            if self.command != '':
+                shell = self.command
+                if os.path.isfile(shell):                                                        
+                    return shell
+        except:
+            pass 
+        try:
+            shell = os.environ["FENRIRSHELL"]
+            if os.path.isfile(shell):                                        
+                return shell
+        except:
+            pass        
+        try:
+            shell = os.environ["SHELL"]
+            if os.path.isfile(shell):                                        
+                return shell
+        except:
+            pass
+        try:
+            if os.acess('/etc/passwd'):
+                with open('/etc/passwd') as f:
+                    users = f.readlines()
+                    for user in users:
+                        (username, encrypwd, uid, gid, gecos, homedir, shell) = user.split(':')
+                        shell = shell.replace('\n','')
+                        if username == getpass.getuser():
+                            if shell != '':
+                                if os.path.isfile(shell):                            
+                                    return shell
+        except:
+            pass
+        try:
+            if os.path.isfile('/bin/bash'):
+                shell = '/bin/bash'
+                return shell
+        except:
+            pass
+        return '/bin/sh'
     def getSessionInformation(self):
         self.env['screen']['autoIgnoreScreens'] = []
         self.env['general']['prevUser'] = getpass.getuser()
@@ -83,7 +124,7 @@ class driver(screenDriver):
     def hasMore(self,fd):
         r, w, e = select.select([fd], [], [], 0.02)
         return (fd in r)        
-    def openTerminal(self, columns, lines, command="bash"):
+    def openTerminal(self, columns, lines, command):
         p_pid, master_fd = pty.fork()
         if p_pid == 0:  # Child.
             argv = shlex.split(command)
@@ -112,7 +153,8 @@ class driver(screenDriver):
             old_attr = termios.tcgetattr(sys.stdin)    
             tty.setraw(0)
             lines, columns = self.getTerminalSize(0)
-            terminal, p_pid, p_out = self.openTerminal(columns, lines)
+            shell = self.getShell()
+            terminal, p_pid, p_out = self.openTerminal(columns, lines, shell)
             std_out = os.fdopen(sys.stdout.fileno(), "w+b", 0)
         
             while active.value: