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config.py
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from __future__ import with_statement
import os
import sys
from ConfigParser import ConfigParser
from itertools import chain
from bpython.keys import cli_key_dispatch as key_dispatch
MAGIC_METHODS = ", ".join("__%s__" % s for s in [
"init", "repr", "str", "lt", "le", "eq", "ne", "gt", "ge", "cmp", "hash",
"nonzero", "unicode", "getattr", "setattr", "get", "set","call", "len",
"getitem", "setitem", "iter", "reversed", "contains", "add", "sub", "mul",
"floordiv", "mod", "divmod", "pow", "lshift", "rshift", "and", "xor", "or",
"div", "truediv", "neg", "pos", "abs", "invert", "complex", "int", "float",
"oct", "hex", "index", "coerce", "enter", "exit"]
)
class Struct(object):
"""Simple class for instantiating objects we can add arbitrary attributes
to and use for various arbitrary things."""
def get_config_home():
"""Returns the base directory for bpython's configuration files."""
xdg_config_home = os.environ.get('XDG_CONFIG_HOME', '~/.config')
return os.path.join(xdg_config_home, 'bpython')
def default_config_path():
"""Returns bpython's default configuration file path."""
return os.path.join(get_config_home(), 'config')
def fill_config_with_default_values(config, default_values):
for section in default_values.iterkeys():
if not config.has_section(section):
config.add_section(section)
for (opt, val) in default_values[section].iteritems():
if not config.has_option(section, opt):
config.set(section, opt, str(val))
def loadini(struct, configfile):
"""Loads .ini configuration file and stores its values in struct"""
config_path = os.path.expanduser(configfile)
if not os.path.isfile(config_path) and configfile == default_config_path():
# We decided that '~/.bpython/config' still was a crappy
# place, use XDG Base Directory Specification instead. Fall
# back to old config, though.
config_path = os.path.expanduser('~/.bpython/config')
config = ConfigParser()
fill_config_with_default_values(config, {
'general': {
'arg_spec': True,
'auto_display_list': True,
'color_scheme': 'default',
'complete_magic_methods' : True,
'magic_methods' : MAGIC_METHODS,
'dedent_after': 1,
'flush_output': True,
'highlight_show_source': True,
'hist_file': '~/.pythonhist',
'hist_length': 100,
'hist_duplicates': True,
'paste_time': 0.02,
'syntax': True,
'tab_length': 4,
'pastebin_confirm': True,
'pastebin_private': False,
'pastebin_url': 'http://bpaste.net/xmlrpc/',
'pastebin_show_url': 'http://bpaste.net/show/$paste_id/',
},
'keyboard': {
'clear_line': 'C-u',
'clear_screen': 'C-l',
'clear_word': 'C-w',
'cut_to_buffer': 'C-k',
'delete': 'C-d',
'down_one_line': 'C-n',
'exit': '',
'last_output': 'F9',
'pastebin': 'F8',
'save': 'C-s',
'show_source': 'F2',
'suspend': 'C-z',
'undo': 'C-r',
'search': 'C-o',
'up_one_line': 'C-p',
'yank_from_buffer': 'C-y'},
'cli': {
'suggestion_width': 0.8,
},
'gtk': {
'font': 'monospace 10',
'color_scheme': 'default'}})
if not config.read(config_path):
# No config file. If the user has it in the old place then complain
if os.path.isfile(os.path.expanduser('~/.bpython.ini')):
sys.stderr.write("Error: It seems that you have a config file at "
"~/.bpython.ini. Please move your config file to "
"%s\n" % default_config_path())
sys.exit(1)
struct.dedent_after = config.getint('general', 'dedent_after')
struct.tab_length = config.getint('general', 'tab_length')
struct.auto_display_list = config.getboolean('general',
'auto_display_list')
struct.syntax = config.getboolean('general', 'syntax')
struct.arg_spec = config.getboolean('general', 'arg_spec')
struct.paste_time = config.getfloat('general', 'paste_time')
struct.highlight_show_source = config.getboolean('general',
'highlight_show_source')
struct.hist_file = config.get('general', 'hist_file')
struct.hist_length = config.getint('general', 'hist_length')
struct.hist_duplicates = config.getboolean('general', 'hist_duplicates')
struct.flush_output = config.getboolean('general', 'flush_output')
struct.pastebin_key = config.get('keyboard', 'pastebin')
struct.save_key = config.get('keyboard', 'save')
struct.search_key = config.get('keyboard', 'search')
struct.show_source_key = config.get('keyboard', 'show_source')
struct.suspend_key = config.get('keyboard', 'suspend')
struct.undo_key = config.get('keyboard', 'undo')
struct.up_one_line_key = config.get('keyboard', 'up_one_line')
struct.down_one_line_key = config.get('keyboard', 'down_one_line')
struct.cut_to_buffer_key = config.get('keyboard', 'cut_to_buffer')
struct.yank_from_buffer_key = config.get('keyboard', 'yank_from_buffer')
struct.clear_word_key = config.get('keyboard', 'clear_word')
struct.clear_line_key = config.get('keyboard', 'clear_line')
struct.clear_screen_key = config.get('keyboard', 'clear_screen')
struct.delete_key = config.get('keyboard', 'delete')
struct.exit_key = config.get('keyboard', 'exit')
struct.last_output_key = config.get('keyboard', 'last_output')
struct.pastebin_confirm = config.getboolean('general', 'pastebin_confirm')
struct.pastebin_private = config.getboolean('general', 'pastebin_private')
struct.pastebin_url = config.get('general', 'pastebin_url')
struct.pastebin_show_url = config.get('general', 'pastebin_show_url')
struct.cli_suggestion_width = config.getfloat('cli',
'suggestion_width')
struct.complete_magic_methods = config.getboolean('general',
'complete_magic_methods')
methods = config.get('general', 'magic_methods')
struct.magic_methods = [meth.strip() for meth in methods.split(",")]
struct.gtk_font = config.get('gtk', 'font')
color_scheme_name = config.get('general', 'color_scheme')
color_gtk_scheme_name = config.get('gtk', 'color_scheme')
default_colors = {
'keyword': 'y',
'name': 'c',
'comment': 'b',
'string': 'm',
'error': 'r',
'number': 'G',
'operator': 'Y',
'punctuation': 'y',
'token': 'C',
'background': 'd',
'output': 'w',
'main': 'c',
'paren': 'R',
'prompt': 'c',
'prompt_more': 'g',
}
default_gtk_colors = {
'keyword': 'b',
'name': 'k',
'comment': 'b',
'string': 'm',
'error': 'r',
'number': 'G',
'operator': 'B',
'punctuation': 'g',
'token': 'C',
'background': 'w',
'output': 'k',
'main': 'c',
'paren': 'R',
'prompt': 'b',
'prompt_more': 'g',
}
if color_scheme_name == 'default':
struct.color_scheme = default_colors
else:
struct.color_scheme = dict()
theme_filename = color_scheme_name + '.theme'
path = os.path.expanduser(os.path.join(get_config_home(),
theme_filename))
old_path = os.path.expanduser(os.path.join('~/.bpython',
theme_filename))
for path in [path, old_path]:
try:
load_theme(struct, path, struct.color_scheme, default_colors)
except EnvironmentError:
continue
else:
break
else:
sys.stderr.write("Could not load theme '%s'.\n" %
(color_scheme_name, ))
sys.exit(1)
if color_gtk_scheme_name == 'default':
struct.color_gtk_scheme = default_gtk_colors
else:
struct.color_gtk_scheme = dict()
# Note: This is a new config option, hence we don't have a
# fallback directory.
path = os.path.expanduser(os.path.join(get_config_home(),
color_gtk_scheme_name + '.theme'))
try:
load_theme(struct, path, struct.color_gtk_scheme, default_colors)
except EnvironmentError:
sys.stderr.write("Could not load gtk theme '%s'.\n" %
(color_gtk_scheme_name, ))
sys.exit(1)
# checks for valid key configuration this part still sucks
for key in (struct.pastebin_key, struct.save_key):
key_dispatch[key]
def load_theme(struct, path, colors, default_colors):
theme = ConfigParser()
with open(path, 'r') as f:
theme.readfp(f)
for k, v in chain(theme.items('syntax'), theme.items('interface')):
if theme.has_option('syntax', k):
colors[k] = theme.get('syntax', k)
else:
colors[k] = theme.get('interface', k)
# Check against default theme to see if all values are defined
for k, v in default_colors.iteritems():
if k not in colors:
colors[k] = v
f.close()