bpython/bpython/config.py at 8b728d9b3c078fffb21bb014ae68b89bbc953cd3 · bpython/bpython · GitHub

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# The MIT License

# Permission is hereby granted, free of charge, to any person obtaining a copy

# of this software and associated documentation files (the "Software"), to deal

# in the Software without restriction, including without limitation the rights

# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

# copies of the Software, and to permit persons to whom the Software is

# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in

# all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

# THE SOFTWARE.

import os

import sys

import locale

from configparser import ConfigParser

from itertools import chain

from pathlib import Path

from xdg import BaseDirectory

from .autocomplete import AutocompleteModes

from .curtsiesfrontend.parse import CNAMES

default_completion = AutocompleteModes.SIMPLE

class UnknownColorCode(Exception):

def __init__(self, key, color):

self.key = key

self.color = color

class Struct:

"""Simple class for instantiating objects we can add arbitrary attributes

to and use for various arbitrary things."""

def getpreferredencoding():

"""Get the user's preferred encoding."""

return locale.getpreferredencoding() or sys.getdefaultencoding()

def can_encode(c):

try:

c.encode(getpreferredencoding())

return True

except UnicodeEncodeError:

return False

def supports_box_chars():

"""Check if the encoding supports Unicode box characters."""

return all(map(can_encode, "│─└┘┌┐"))

def get_config_home():

"""Returns the base directory for bpython's configuration files."""

return Path(BaseDirectory.xdg_config_home) / "bpython"

def default_config_path():

"""Returns bpython's default configuration file path."""

return get_config_home() / "config"

def default_editor():

"""Returns the default editor."""

return os.environ.get("VISUAL", os.environ.get("EDITOR", "vi"))

def fill_config_with_default_values(config, default_values):

for section in default_values.keys():

if not config.has_section(section):

config.add_section(section)

for (opt, val) in default_values[section].items():

if not config.has_option(section, opt):

config.set(section, opt, f"{val}")

def loadini(struct, config_path):

"""Loads .ini configuration file and stores its values in struct"""

config = ConfigParser()

defaults = {

"general": {

"arg_spec": True,

"auto_display_list": True,

"autocomplete_mode": default_completion,

"color_scheme": "default",

"complete_magic_methods": True,

"dedent_after": 1,

"default_autoreload": False,

"editor": default_editor(),

"flush_output": True,

"import_completion_skiplist": ":".join(

(

# version tracking

".git",

".svn",

".hg"

# XDG

".config",

".local",

".share",

# nodejs

"node_modules",

# PlayOnLinux

"PlayOnLinux's virtual drives",

# wine

"dosdevices",

# Python byte code cache

"__pycache__",

)

"highlight_show_source": True,

"hist_duplicates": True,

"hist_file": "~/.pythonhist",

"hist_length": 1000,

"paste_time": 0.02,

"pastebin_confirm": True,

"pastebin_expiry": "1week",

"pastebin_helper": "",

"pastebin_url": "https://bpaste.net",

"save_append_py": False,

"single_undo_time": 1.0,

"syntax": True,

"tab_length": 4,

"unicode_box": True,

"keyboard": {

"backspace": "C-h",

"beginning_of_line": "C-a",

"clear_line": "C-u",

"clear_screen": "C-l",

"clear_word": "C-w",

"copy_clipboard": "F10",

"cut_to_buffer": "C-k",

"delete": "C-d",

"down_one_line": "C-n",

"edit_config": "F3",

"edit_current_block": "C-x",

"end_of_line": "C-e",

"exit": "",

"external_editor": "F7",

"help": "F1",

"incremental_search": "M-s",

"last_output": "F9",

"left": "C-b",

"pastebin": "F8",

"redo": "C-g",

"reimport": "F6",

"reverse_incremental_search": "M-r",

"right": "C-f",

"save": "C-s",

"search": "C-o",

"show_source": "F2",

"suspend": "C-z",

"toggle_file_watch": "F5",

"transpose_chars": "C-t",

"undo": "C-r",

"up_one_line": "C-p",

"yank_from_buffer": "C-y",

"cli": {

"suggestion_width": 0.8,

"trim_prompts": False,

"curtsies": {

"list_above": False,

"right_arrow_completion": True,

}

default_keys_to_commands = {

value: key for (key, value) in defaults["keyboard"].items()

}

fill_config_with_default_values(config, defaults)

try:

config.read(config_path)

except UnicodeDecodeError as e:

sys.stderr.write(

"Error: Unable to parse config file at '{}' due to an "

"encoding issue. Please make sure to fix the encoding "

"of the file or remove it and then try again.\n".format(config_path)

)

sys.exit(1)

def get_key_no_doublebind(command):

default_commands_to_keys = defaults["keyboard"]

requested_key = config.get("keyboard", command)

try:

default_command = default_keys_to_commands[requested_key]

if default_commands_to_keys[default_command] == config.get(

"keyboard", default_command

setattr(struct, "%s_key" % default_command, "")

except KeyError:

pass

return requested_key

struct.config_path = Path(config_path).absolute()

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.single_undo_time = config.getfloat("general", "single_undo_time")

struct.highlight_show_source = config.getboolean(

"general", "highlight_show_source"

)

struct.hist_file = config.get("general", "hist_file")

struct.editor = config.get("general", "editor")

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.default_autoreload = config.getboolean(

"general", "default_autoreload"

)

struct.import_completion_skiplist = config.get(

"general", "import_completion_skiplist"

).split(":")

struct.pastebin_key = get_key_no_doublebind("pastebin")

struct.copy_clipboard_key = get_key_no_doublebind("copy_clipboard")

struct.save_key = get_key_no_doublebind("save")

struct.search_key = get_key_no_doublebind("search")

struct.show_source_key = get_key_no_doublebind("show_source")

struct.suspend_key = get_key_no_doublebind("suspend")

struct.toggle_file_watch_key = get_key_no_doublebind("toggle_file_watch")

struct.undo_key = get_key_no_doublebind("undo")

struct.redo_key = get_key_no_doublebind("redo")

struct.reimport_key = get_key_no_doublebind("reimport")

struct.reverse_incremental_search_key = get_key_no_doublebind(

"reverse_incremental_search"

)

struct.incremental_search_key = get_key_no_doublebind("incremental_search")

struct.up_one_line_key = get_key_no_doublebind("up_one_line")

struct.down_one_line_key = get_key_no_doublebind("down_one_line")

struct.cut_to_buffer_key = get_key_no_doublebind("cut_to_buffer")

struct.yank_from_buffer_key = get_key_no_doublebind("yank_from_buffer")

struct.clear_word_key = get_key_no_doublebind("clear_word")

struct.backspace_key = get_key_no_doublebind("backspace")

struct.clear_line_key = get_key_no_doublebind("clear_line")

struct.clear_screen_key = get_key_no_doublebind("clear_screen")

struct.delete_key = get_key_no_doublebind("delete")

struct.left_key = get_key_no_doublebind("left")

struct.right_key = get_key_no_doublebind("right")

struct.end_of_line_key = get_key_no_doublebind("end_of_line")

struct.beginning_of_line_key = get_key_no_doublebind("beginning_of_line")

struct.transpose_chars_key = get_key_no_doublebind("transpose_chars")

struct.exit_key = get_key_no_doublebind("exit")

struct.last_output_key = get_key_no_doublebind("last_output")

struct.edit_config_key = get_key_no_doublebind("edit_config")

struct.edit_current_block_key = get_key_no_doublebind("edit_current_block")

struct.external_editor_key = get_key_no_doublebind("external_editor")

struct.help_key = get_key_no_doublebind("help")

struct.pastebin_confirm = config.getboolean("general", "pastebin_confirm")

struct.pastebin_url = config.get("general", "pastebin_url")

struct.pastebin_expiry = config.get("general", "pastebin_expiry")

struct.pastebin_helper = config.get("general", "pastebin_helper")

struct.cli_suggestion_width = config.getfloat("cli", "suggestion_width")

struct.cli_trim_prompts = config.getboolean("cli", "trim_prompts")

struct.complete_magic_methods = config.getboolean(

"general", "complete_magic_methods"

)

struct.autocomplete_mode = AutocompleteModes.from_string(

config.get("general", "autocomplete_mode")

)

struct.save_append_py = config.getboolean("general", "save_append_py")

struct.curtsies_list_above = config.getboolean("curtsies", "list_above")

struct.curtsies_right_arrow_completion = config.getboolean(

"curtsies", "right_arrow_completion"

)

struct.unicode_box = config.getboolean("general", "unicode_box")

color_scheme_name = config.get("general", "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",

"right_arrow_suggestion": "K",

}

if color_scheme_name == "default":

struct.color_scheme = default_colors

else:

struct.color_scheme = dict()

path = get_config_home() / f"{color_scheme_name}.theme"

try:

load_theme(struct, path, struct.color_scheme, default_colors)

except OSError:

sys.stderr.write(

f"Could not load theme '{color_scheme_name}' from {path}.\n"

)

sys.exit(1)

except UnknownColorCode as ucc:

sys.stderr.write(

f"Theme '{color_scheme_name}' contains invalid color: {ucc.key} = {ucc.color}.\n"

)

sys.exit(1)

# expand path of history file

struct.hist_file = Path(struct.hist_file).expanduser()

# verify completion mode

if struct.autocomplete_mode is None:

struct.autocomplete_mode = default_completion

# set box drawing characters

if struct.unicode_box and supports_box_chars():

struct.left_border = "│"

struct.right_border = "│"

struct.top_border = "─"

struct.bottom_border = "─"

struct.left_bottom_corner = "└"

struct.right_bottom_corner = "┘"

struct.left_top_corner = "┌"

struct.right_top_corner = "┐"

else:

struct.left_border = "|"

struct.right_border = "|"

struct.top_border = "-"

struct.bottom_border = "-"

struct.left_bottom_corner = "+"

struct.right_bottom_corner = "+"

struct.left_top_corner = "+"

struct.right_top_corner = "+"

def load_theme(struct, path, colors, default_colors):

theme = ConfigParser()

with open(path) as f:

theme.read_file(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)

if colors[k].lower() not in CNAMES:

raise UnknownColorCode(k, colors[k])

# Check against default theme to see if all values are defined

for k, v in default_colors.items():

if k not in colors:

colors[k] = v

bpython/bpython/config.py at 8b728d9b3c078fffb21bb014ae68b89bbc953cd3 · bpython/bpython · GitHub

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bpython/bpython/config.py at 8b728d9b3c078fffb21bb014ae68b89bbc953cd3 · bpython/bpython · GitHub

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