add info command

rsbbs/plugins/info/info_default.txt

@@ -0,0 +1,2 @@
+Welcome to Really Simple BBS!
+https://github.com/jmbwell/rsbbs.git

rsbbs/plugins/info/plugin.py

@@ -0,0 +1,83 @@
+#!/usr/bin/env python
+#
+# Really Simple BBS - a really simple BBS for ax.25 packet radio.
+# Copyright (C) 2023 John Burwell <john@atatdotdot.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# 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 <https://www.gnu.org/licenses/>.
+
+import logging
+import os
+import pkg_resources
+import platformdirs
+
+from pathlib import Path
+
+from rsbbs import Console, Parser
+
+
+class Plugin():
+
+    def __init__(self, api: Console) -> None:
+        self.api = api
+        self.init_parser(api.parser)
+        self.init_file()
+        logging.info(f"Plugin {__name__} loaded")
+
+    def init_parser(self, parser: Parser) -> None:
+        subparser = parser.subparsers.add_parser(
+            name='info',
+            aliases=['i'],
+            help='Show info about this BBS')
+        subparser.set_defaults(func=self.run)
+
+    @property
+    def file(self) -> Path:
+        self._file = Path().joinpath(
+            platformdirs.user_config_dir(
+                appname=self.api.config.app_name,
+                ensure_exists=True),
+            'info.txt'
+            )
+        return self._file
+
+    def init_file(self) -> None:
+        # If the file doesn't exist there, create it from the default file
+        # included in the package
+        if not self.file.exists():
+            default_file = Path(
+                pkg_resources.resource_filename(
+                    __name__,
+                    'info_default.txt'))
+            try:
+                default_text = default_file.read_text()
+                self.file.write_text(default_text)
+            except Exception as e:
+                logging.error(f"Error creating file {self.file}: {e}")
+                exit(1)
+
+    @property
+    def file_text(self) -> str:
+        """Load data from the file."""
+        # Load it
+        try:
+            self._file_data = self.file.read_text()
+            return self._file_data
+        except Exception as e:
+            logging.error(f"Error reading info file: {e}")
+            exit(1)
+
+    def run(self, args) -> None:
+        """Read the info file and send it to the caller."""
+        self.api.write_output(self.file_text)
+        logging.info(f"read info file {self.file}")