Merge branch 't2564-lcd' of github.com:c-po/vyos-1x into current

* 't2564-lcd' of github.com:c-po/vyos-1x:
  lcd: T2564: flatten CLI interface
  system display: T2564: Added test model
  system display: T2564: Dictionary code update
  system display: T2564: Conf files to /run
  system display: T2564: Changed "duration" to "time"
  system display: T2564: py code cleanup
  system display: T2564: Replace "config (enabled|disabled)" with "display disabled"
  system display: T2564: Lowercase model names
  system display: T2564 Extend VyOS to support appliance LCDs

2 files changed, 85 insertions, 11 deletions

diff --git a/src/conf_mode/interfaces-wirelessmodem.py b/src/conf_mode/interfaces-wirelessmodem.py
index 4081be3c9..6d168d918 100755
--- a/src/conf_mode/interfaces-wirelessmodem.py
+++ b/src/conf_mode/interfaces-wirelessmodem.py
@@ -16,7 +16,6 @@
 
 import os
 
-from fnmatch import fnmatch
 from sys import exit
 
 from vyos.config import Config
@@ -25,22 +24,13 @@ from vyos.configverify import verify_vrf
 from vyos.template import render
 from vyos.util import call
 from vyos.util import check_kmod
+from vyos.util import find_device_file
 from vyos import ConfigError
 from vyos import airbag
 airbag.enable()
 
 k_mod = ['option', 'usb_wwan', 'usbserial']
 
-def find_device_file(device):
-    """ Recurively search /dev for the given device file and return its full path.
-        If no device file was found 'None' is returned """
-    for root, dirs, files in os.walk('/dev'):
-        for basename in files:
-            if fnmatch(basename, device):
-                return os.path.join(root, basename)
-
-    return None
-
 def get_config():
     """
     Retrive CLI config as dictionary. Dictionary can never be empty, as at least the
diff --git a/src/conf_mode/system_lcd.py b/src/conf_mode/system_lcd.py
new file mode 100755
index 000000000..0ad1318f0
--- /dev/null
+++ b/src/conf_mode/system_lcd.py
@@ -0,0 +1,84 @@
+#!/usr/bin/env python3
+#
+# Copyright 2020 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+from sys import exit
+
+from vyos.config import Config
+from vyos.util import call
+from vyos.util import find_device_file
+from vyos.template import render
+from vyos import ConfigError
+from vyos import airbag
+airbag.enable()
+
+lcdd_conf = '/run/LCDd/LCDd.conf'
+lcdproc_conf = '/run/lcdproc/lcdproc.conf'
+
+def get_config():
+    conf = Config()
+    base = ['system', 'lcd']
+    lcd = conf.get_config_dict(base, key_mangling=('-', '_'),
+                               get_first_key=True)
+    # Return (possibly empty) dictionary
+    return lcd
+
+def verify(lcd):
+    if not lcd:
+        return None
+
+    if not {'device', 'model'} <= set(lcd):
+        raise ConfigError('Both device and driver must be set!')
+
+    return None
+
+def generate(lcd):
+    if not lcd:
+        return None
+
+    if 'device' in lcd:
+        lcd['device'] = find_device_file(lcd['device'])
+
+    # Render config file for daemon LCDd
+    render(lcdd_conf, 'lcd/LCDd.conf.tmpl', lcd, trim_blocks=True)
+    # Render config file for client lcdproc
+    render(lcdproc_conf, 'lcd/lcdproc.conf.tmpl', lcd, trim_blocks=True)
+
+    return None
+
+def apply(lcd):
+    if not lcd:
+        call('systemctl stop lcdproc.service LCDd.service')
+
+        for file in [lcdd_conf, lcdproc_conf]:
+            if os.path.exists(file):
+                os.remove(file)
+    else:
+        # Restart server
+        call('systemctl restart LCDd.service lcdproc.service')
+
+    return None
+
+if __name__ == '__main__':
+    try:
+        config_dict = get_config()
+        verify(config_dict)
+        generate(config_dict)
+        apply(config_dict)
+    except ConfigError as e:
+        print(e)
+        exit(1)