Now use "var-dir" as option name

[mpd-sima.git] / sima / utils / config.py

diff --git a/sima/utils/config.py b/sima/utils/config.py
index b3a8d46a8c0c9a4d94ed001295226e631eecf61e..92d3fb916c4b6ff2b499c712e7c4f1f284e6725a 100644 (file)
--- a/sima/utils/config.py
+++ b/sima/utils/config.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (c) 2009, 2010, 2011, 2013, 2014 Jack Kaliko <kaliko@azylum.org>
+# Copyright (c) 2009, 2010, 2011, 2013, 2014, 2015 Jack Kaliko <kaliko@azylum.org>
 #
 #  This file is part of sima
 #
@@ -29,15 +29,15 @@ import logging
 import sys
 
 from configparser import Error
-from os import (makedirs, environ, stat, chmod)
-from os.path import (join, isdir, isfile)
+from os import (access, makedirs, environ, stat, chmod, W_OK, R_OK)
+from os.path import (join, isdir, isfile, dirname, exists)
 from stat import (S_IMODE, ST_MODE, S_IRWXO, S_IRWXG)
 
 from . import utils
 
 # DEFAULTS
 DIRNAME = 'mpd_sima'
-CONF_FILE = 'sima.cfg'
+CONF_FILE = 'mpd_sima.cfg'
 
 DEFAULT_CONF = {
         'MPD': {
@@ -46,12 +46,13 @@ DEFAULT_CONF = {
             'port': 6600,
             },
         'sima': {
-            'internal': "Crop, Lastfm, RandomFallBack",
+            'internal': "Crop, Lastfm, Random",
             'contrib': "",
             'user_db': "false",
             'history_duration': 8,
-            'queue_length': 1,
+            'queue_length': 2,
             'var_dir': 'empty',
+            'musicbrainzid': "true",
             },
         'daemon':{
             'daemon': False,
@@ -63,6 +64,7 @@ DEFAULT_CONF = {
             },
         'crop': {
             'consume': 10,
+            'priority': 0,
             },
         'echonest': {
             'queue_mode': "track", #TODO control values
@@ -71,6 +73,7 @@ DEFAULT_CONF = {
             'track_to_add': 1,
             'album_to_add': 1,
             'depth': 1,
+            'priority': 100,
             },
         'lastfm': {
             'queue_mode': "track", #TODO control values
@@ -80,11 +83,13 @@ DEFAULT_CONF = {
             'album_to_add': 1,
             'depth': 1,
             'cache': True,
+            'priority': 100,
             },
-        'randomfallback': {
+        'random': {
             'flavour': "sensible", # in pure, sensible
             'track_to_add': 1,
-            }
+            'priority': 50,
+            },
         }
 #
 
@@ -120,9 +125,47 @@ class ConfMan(object):  # CONFIG MANAGER CLASS
         ## INIT CALLS
         self.init_config()
         self.supersedes_config_with_cmd_line_options()
-        # generate dbfile
+        # Controls files access
+        self.control_facc()
+        # set dbfile
         self.config['sima']['db_file'] = join(self.config['sima']['var_dir'], 'sima.db')
 
+        # Create directories
+        data_dir = self.config['sima']['var_dir']
+        if not isdir(data_dir):
+            self.log.trace('Creating "{}"'.format(data_dir))
+            makedirs(data_dir)
+            chmod(data_dir, 0o700)
+
+    def control_facc(self):
+        """Controls file access.
+        This is relevant only for file provided through the configuration file
+        since files provided on the command line are already checked with
+        argparse.
+        """
+        ok = True
+        for op, ftochk in [('logfile', self.config.get('log','logfile')),
+                           ('pidfile', self.config.get('daemon', 'pidfile')),]:
+            if not ftochk:
+                continue
+            if isdir(ftochk):
+                self.log.critical('Need a file not a directory: "{}"'.format(ftochk))
+                ok = False
+            if not exists(ftochk):
+                # Is parent directory writable then
+                filedir = dirname(ftochk)
+                if not access(filedir, W_OK):
+                    self.log.critical('no write access to "{0}" ({1})'.format(filedir, op))
+                    ok = False
+            else:
+                if not access(ftochk, W_OK):
+                    self.log.critical('no write access to "{0}" ({1})'.format(ftochk, op))
+                    ok = False
+        if not ok:
+            if exists(self.conf_file):
+                self.log.warning('Try to check the configuration file: {}'.format(self.conf_file))
+            sys.exit(2)
+
     def control_mod(self):
         """
         Controls conf file permissions.
@@ -170,14 +213,10 @@ class ConfMan(object):  # CONFIG MANAGER CLASS
         elif homedir and isdir(homedir) and homedir not in ['/']:
             data_dir = join(homedir, '.local', 'share', DIRNAME)
         else:
-            self.log.error('Can\'t find a suitable location for data folder (XDG_DATA_HOME)')
-            self.log.error('Please use "--var_dir" to set a proper location')
+            self.log.critical('Can\'t find a suitable location for data folder (XDG_DATA_HOME)')
+            self.log.critical('Please use "--var-dir" to set a proper location')
             sys.exit(1)
 
-        if not isdir(data_dir):
-            makedirs(data_dir)
-            chmod(data_dir, 0o700)
-
         if self.startopt.get('conf_file'):
             # No need to handle conf file location
             pass
@@ -185,14 +224,10 @@ class ConfMan(object):  # CONFIG MANAGER CLASS
             conf_dir = join(environ.get('XDG_CONFIG_HOME'), DIRNAME)
         elif homedir and isdir(homedir) and homedir not in ['/']:
             conf_dir = join(homedir, '.config', DIRNAME)
-            # Create conf_dir if necessary
-            if not isdir(conf_dir):
-                makedirs(conf_dir)
-                chmod(conf_dir, 0o700)
             self.conf_file = join(conf_dir, CONF_FILE)
         else:
-            self.log.error('Can\'t find a suitable location for config folder (XDG_CONFIG_HOME)')
-            self.log.error('Please use "--config" to locate the conf file')
+            self.log.critical('Can\'t find a suitable location for config folder (XDG_CONFIG_HOME)')
+            self.log.critical('Please use "--config" to locate the conf file')
             sys.exit(1)
 
         ## Sima sqlite DB