First version of the prompt CLI.

topydo/cli/Prompt.py

+# Topydo - A todo.txt client written in Python.
+# Copyright (C) 2015 Bram Schoenmakers <me@bramschoenmakers.nl>
+#
+# 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 <http://www.gnu.org/licenses/>.
+
+""" Entry file for the Python todo.txt CLI. """
+
+import sys
+
+from topydo.cli.CLIApplicationBase import CLIApplicationBase, error
+from prompt_toolkit.contrib.shortcuts import get_input
+
+from topydo.lib.Config import config, ConfigError
+
+# First thing is to poke the configuration and check whether it's sane
+# The modules below may already read in configuration upon import, so
+# make sure to bail out if the configuration is invalid.
+try:
+    config()
+except ConfigError as config_error:
+    error(str(config_error))
+    sys.exit(1)
+
+from topydo.lib.Commands import get_subcommand
+from topydo.lib.SortCommand import SortCommand
+from topydo.lib import TodoFile
+from topydo.lib import TodoList
+
+class PromptApplication(CLIApplicationBase):
+    """
+    Class that represents the Command Line Interface of Topydo.
+
+    Handles input/output of the various subcommand.
+    """
+    def __init__(self):
+        super(PromptApplication, self).__init__()
+
+    def run(self):
+        """ Main entry function. """
+        args = self._process_flags()
+
+        todofile = TodoFile.TodoFile(self.path)
+        self.todolist = TodoList.TodoList(todofile.read())
+
+        while True:
+            try:
+                user_input = get_input('topydo> ').split()
+            except (EOFError, KeyboardInterrupt):
+                sys.exit(0)
+
+            (subcommand, args) = get_subcommand(user_input)
+
+            if self._execute(subcommand, args) != False:
+                if self.todolist.is_dirty():
+                    self._archive()
+
+                    if config().keep_sorted():
+                        self._execute(SortCommand, [])
+
+                    todofile.write(str(self.todolist))
+
+def main():
+    """ Main entry point of the CLI. """
+    PromptApplication().run()
+
+if __name__ == '__main__':
+    main()