mirror of
https://github.com/luanti-org/luanti.git
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496 lines
16 KiB
Python
Executable File
496 lines
16 KiB
Python
Executable File
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Script to generate Minetest translation template files and update
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# translation files.
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#
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# Copyright (C) 2019 Joachim Stolberg, 2020 FaceDeer, 2020 Louis Royer,
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# 2023 Wuzzy.
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# License: LGPLv2.1 or later (see LICENSE file for details)
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import os, fnmatch, re, shutil, errno
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from sys import argv as _argv
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from sys import stderr as _stderr
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# Running params
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params = {"recursive": False,
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"help": False,
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"verbose": False,
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"folders": [],
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"old-file": False,
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"break-long-lines": False,
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"print-source": False,
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"truncate-unused": False,
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}
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# Available CLI options
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options = {"recursive": ['--recursive', '-r'],
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"help": ['--help', '-h'],
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"verbose": ['--verbose', '-v'],
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"old-file": ['--old-file', '-o'],
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"break-long-lines": ['--break-long-lines', '-b'],
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"print-source": ['--print-source', '-p'],
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"truncate-unused": ['--truncate-unused', '-t'],
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}
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# Strings longer than this will have extra space added between
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# them in the translation files to make it easier to distinguish their
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# beginnings and endings at a glance
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doublespace_threshold = 80
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# These symbols mark comment lines showing the source file name.
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# A comment may look like "##[ init.lua ]##".
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symbol_source_prefix = "##["
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symbol_source_suffix = "]##"
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# comment to mark the section of old/unused strings
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comment_unused = "##### not used anymore #####"
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def set_params_folders(tab: list):
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'''Initialize params["folders"] from CLI arguments.'''
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# Discarding argument 0 (tool name)
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for param in tab[1:]:
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stop_param = False
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for option in options:
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if param in options[option]:
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stop_param = True
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break
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if not stop_param:
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params["folders"].append(os.path.abspath(param))
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def set_params(tab: list):
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'''Initialize params from CLI arguments.'''
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for option in options:
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for option_name in options[option]:
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if option_name in tab:
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params[option] = True
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break
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def print_help(name):
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'''Prints some help message.'''
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print(f'''SYNOPSIS
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{name} [OPTIONS] [PATHS...]
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DESCRIPTION
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{', '.join(options["help"])}
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prints this help message
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{', '.join(options["recursive"])}
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run on all subfolders of paths given
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{', '.join(options["old-file"])}
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create *.old files
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{', '.join(options["break-long-lines"])}
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add extra line breaks before and after long strings
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{', '.join(options["print-source"])}
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add comments denoting the source file
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{', '.join(options["verbose"])}
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add output information
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{', '.join(options["truncate-unused"])}
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delete unused strings from files
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''')
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def main():
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'''Main function'''
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set_params(_argv)
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set_params_folders(_argv)
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if params["help"]:
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print_help(_argv[0])
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else:
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# Add recursivity message
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print("Running ", end='')
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if params["recursive"]:
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print("recursively ", end='')
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# Running
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if len(params["folders"]) >= 2:
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print("on folder list:", params["folders"])
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for f in params["folders"]:
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if params["recursive"]:
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run_all_subfolders(f)
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else:
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update_folder(f)
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elif len(params["folders"]) == 1:
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print("on folder", params["folders"][0])
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if params["recursive"]:
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run_all_subfolders(params["folders"][0])
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else:
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update_folder(params["folders"][0])
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else:
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print("on folder", os.path.abspath("./"))
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if params["recursive"]:
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run_all_subfolders(os.path.abspath("./"))
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else:
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update_folder(os.path.abspath("./"))
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# Group 2 will be the string, groups 1 and 3 will be the delimiters (" or ')
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# See https://stackoverflow.com/questions/46967465/regex-match-text-in-either-single-or-double-quote
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pattern_lua_quoted = re.compile(
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r'(?:^|[\.=,{\(\s])' # Look for beginning of file or anything that isn't a function identifier
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r'N?F?S\s*\(\s*' # Matches S, FS, NS or NFS function call
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r'(["\'])((?:\\\1|(?:(?!\1)).)*)(\1)' # Quoted string
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r'[\s,\)]', # End of call or argument
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re.DOTALL)
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# Handles the [[ ... ]] string delimiters
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pattern_lua_bracketed = re.compile(
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r'(?:^|[\.=,{\(\s])' # Same as for pattern_lua_quoted
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r'N?F?S\s*\(\s*' # Same as for pattern_lua_quoted
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r'\[\[(.*?)\]\]' # [[ ... ]] string delimiters
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r'[\s,\)]', # Same as for pattern_lua_quoted
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re.DOTALL)
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# Handles "concatenation" .. " of strings"
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pattern_concat = re.compile(r'["\'][\s]*\.\.[\s]*["\']', re.DOTALL)
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# Handles a translation line in *.tr file.
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# Group 1 is the source string left of the equals sign.
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# Group 2 is the translated string, right of the equals sign.
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pattern_tr = re.compile(
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r'(.*)' # Source string
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# the separating equals sign, if NOT preceded by @, unless
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# that @ is preceded by another @
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r'(?:(?<!(?<!@)@)=)'
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r'(.*)' # Translation string
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)
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pattern_name = re.compile(r'^name[ ]*=[ ]*([^ \n]*)')
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pattern_tr_filename = re.compile(r'\.tr$')
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# Matches bad use of @ signs in Lua string
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pattern_bad_luastring = re.compile(
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r'^@$|' # single @, OR
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r'[^@]@$|' # trailing unescaped @, OR
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r'(?<!@)@(?=[^@1-9])' # an @ that is not escaped or part of a placeholder
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)
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# Attempt to read the mod's name from the mod.conf file or folder name. Returns None on failure
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def get_modname(folder):
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try:
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with open(os.path.join(folder, "mod.conf"), "r", encoding='utf-8') as mod_conf:
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for line in mod_conf:
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match = pattern_name.match(line)
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if match:
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return match.group(1)
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except FileNotFoundError:
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if not os.path.isfile(os.path.join(folder, "modpack.txt")):
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folder_name = os.path.basename(folder)
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# Special case when run in Minetest's builtin directory
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if folder_name == "builtin":
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return "__builtin"
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else:
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return folder_name
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else:
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return None
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return None
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# If there are already .tr files in /locale, returns a list of their names
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def get_existing_tr_files(folder):
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out = []
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for root, dirs, files in os.walk(os.path.join(folder, 'locale/')):
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for name in files:
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if pattern_tr_filename.search(name):
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out.append(name)
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return out
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# from https://stackoverflow.com/questions/600268/mkdir-p-functionality-in-python/600612#600612
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# Creates a directory if it doesn't exist, silently does
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# nothing if it already exists
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def mkdir_p(path):
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try:
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os.makedirs(path)
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except OSError as exc: # Python >2.5
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if exc.errno == errno.EEXIST and os.path.isdir(path):
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pass
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else: raise
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# Converts the template dictionary to a text to be written as a file
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# dKeyStrings is a dictionary of localized string to source file sets
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# dOld is a dictionary of existing translations and comments from
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# the previous version of this text
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def strings_to_text(dkeyStrings, dOld, mod_name, header_comments, textdomain):
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# if textdomain is specified, insert it at the top
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if textdomain != None:
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lOut = [textdomain] # argument is full textdomain line
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# otherwise, use mod name as textdomain automatically
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else:
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lOut = [f"# textdomain: {mod_name}"]
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if header_comments is not None:
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lOut.append(header_comments)
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dGroupedBySource = {}
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for key in dkeyStrings:
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sourceList = list(dkeyStrings[key])
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sourceString = "\n".join(sourceList)
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listForSource = dGroupedBySource.get(sourceString, [])
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listForSource.append(key)
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dGroupedBySource[sourceString] = listForSource
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lSourceKeys = list(dGroupedBySource.keys())
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lSourceKeys.sort()
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for source in lSourceKeys:
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localizedStrings = dGroupedBySource[source]
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if params["print-source"]:
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if lOut[-1] != "":
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lOut.append("")
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lOut.append(source)
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for localizedString in localizedStrings:
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val = dOld.get(localizedString, {})
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translation = val.get("translation", "")
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comment = val.get("comment")
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if params["break-long-lines"] and len(localizedString) > doublespace_threshold and not lOut[-1] == "":
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lOut.append("")
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if comment != None and comment != "" and not comment.startswith("# textdomain:"):
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lOut.append(comment)
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lOut.append(f"{localizedString}={translation}")
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if params["break-long-lines"] and len(localizedString) > doublespace_threshold:
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lOut.append("")
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unusedExist = False
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if not params["truncate-unused"]:
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for key in dOld:
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if key not in dkeyStrings:
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val = dOld[key]
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translation = val.get("translation")
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comment = val.get("comment")
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# only keep an unused translation if there was translated
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# text or a comment associated with it
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if translation != None and (translation != "" or comment):
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if not unusedExist:
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unusedExist = True
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lOut.append("\n\n" + comment_unused + "\n")
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if params["break-long-lines"] and len(key) > doublespace_threshold and not lOut[-1] == "":
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lOut.append("")
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if comment != None:
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lOut.append(comment)
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lOut.append(f"{key}={translation}")
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if params["break-long-lines"] and len(key) > doublespace_threshold:
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lOut.append("")
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return "\n".join(lOut) + '\n'
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# Writes a template.txt file
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# dkeyStrings is the dictionary returned by generate_template
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def write_template(templ_file, dkeyStrings, mod_name):
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# read existing template file to preserve comments
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existing_template = import_tr_file(templ_file)
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text = strings_to_text(dkeyStrings, existing_template[0], mod_name, existing_template[2], existing_template[3])
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mkdir_p(os.path.dirname(templ_file))
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with open(templ_file, "wt", encoding='utf-8') as template_file:
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template_file.write(text)
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# Gets all translatable strings from a lua file
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def read_lua_file_strings(lua_file):
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lOut = []
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with open(lua_file, encoding='utf-8') as text_file:
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text = text_file.read()
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text = re.sub(pattern_concat, "", text)
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strings = []
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for s in pattern_lua_quoted.findall(text):
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strings.append(s[1])
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for s in pattern_lua_bracketed.findall(text):
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strings.append(s)
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for s in strings:
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found_bad = pattern_bad_luastring.search(s)
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if found_bad:
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print("SYNTAX ERROR: Unescaped '@' in Lua string: " + s)
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continue
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s = s.replace('\\"', '"')
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s = s.replace("\\'", "'")
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s = s.replace("\n", "@n")
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s = s.replace("\\n", "@n")
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s = s.replace("=", "@=")
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lOut.append(s)
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return lOut
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# Gets strings from an existing translation file
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# returns both a dictionary of translations
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# and the full original source text so that the new text
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# can be compared to it for changes.
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# Returns also header comments in the third return value.
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def import_tr_file(tr_file):
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dOut = {}
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text = None
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in_header = True
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header_comments = None
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textdomain = None
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if os.path.exists(tr_file):
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with open(tr_file, "r", encoding='utf-8') as existing_file :
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# save the full text to allow for comparison
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# of the old version with the new output
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text = existing_file.read()
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existing_file.seek(0)
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# a running record of the current comment block
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# we're inside, to allow preceeding multi-line comments
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# to be retained for a translation line
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latest_comment_block = None
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for line in existing_file.readlines():
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line = line.rstrip('\n')
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# "##### not used anymore #####" comment
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if line == comment_unused:
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# Always delete the 'not used anymore' comment.
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# It will be re-added to the file if neccessary.
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latest_comment_block = None
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if header_comments != None:
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in_header = False
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continue
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# Comment lines
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elif line.startswith("#"):
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# Source file comments: ##[ file.lua ]##
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if line.startswith(symbol_source_prefix) and line.endswith(symbol_source_suffix):
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# This line marks the end of header comments.
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if params["print-source"]:
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in_header = False
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# Remove those comments; they may be added back automatically.
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continue
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# Store first occurance of textdomain
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# discard all subsequent textdomain lines
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if line.startswith("# textdomain:"):
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if textdomain == None:
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textdomain = line
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continue
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elif in_header:
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# Save header comments (normal comments at top of file)
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if not header_comments:
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header_comments = line
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else:
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header_comments = header_comments + "\n" + line
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else:
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# Save normal comments
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if line.startswith("# textdomain:") and textdomain == None:
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textdomain = line
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elif not latest_comment_block:
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latest_comment_block = line
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else:
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latest_comment_block = latest_comment_block + "\n" + line
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continue
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match = pattern_tr.match(line)
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if match:
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# this line is a translated line
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outval = {}
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outval["translation"] = match.group(2)
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if latest_comment_block:
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# if there was a comment, record that.
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outval["comment"] = latest_comment_block
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latest_comment_block = None
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in_header = False
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dOut[match.group(1)] = outval
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return (dOut, text, header_comments, textdomain)
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# like os.walk but returns sorted filenames
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def sorted_os_walk(folder):
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tuples = []
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t = 0
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for root, dirs, files in os.walk(folder):
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tuples.append( (root, dirs, files) )
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t = t + 1
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tuples = sorted(tuples)
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paths_and_files = []
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f = 0
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for tu in tuples:
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root = tu[0]
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dirs = tu[1]
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files = tu[2]
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files = sorted(files, key=str.lower)
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for filename in files:
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paths_and_files.append( (os.path.join(root, filename), filename) )
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f = f + 1
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return paths_and_files
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# Walks all lua files in the mod folder, collects translatable strings,
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# and writes it to a template.txt file
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# Returns a dictionary of localized strings to source file lists
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# that can be used with the strings_to_text function.
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def generate_template(folder, mod_name):
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dOut = {}
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paths_and_files = sorted_os_walk(folder)
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for paf in paths_and_files:
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fullpath_filename = paf[0]
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filename = paf[1]
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if fnmatch.fnmatch(filename, "*.lua"):
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found = read_lua_file_strings(fullpath_filename)
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if params["verbose"]:
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print(f"{fullpath_filename}: {str(len(found))} translatable strings")
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for s in found:
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sources = dOut.get(s, set())
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sources.add(os.path.relpath(fullpath_filename, start=folder))
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dOut[s] = sources
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if len(dOut) == 0:
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return None
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# Convert source file set to list, sort it and add comment symbols.
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# Needed because a set is unsorted and might result in unpredictable.
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# output orders if any source string appears in multiple files.
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for d in dOut:
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sources = dOut.get(d, set())
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sources = sorted(list(sources), key=str.lower)
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newSources = []
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for i in sources:
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newSources.append(f"{symbol_source_prefix} {i} {symbol_source_suffix}")
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dOut[d] = newSources
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templ_file = os.path.join(folder, "locale/template.txt")
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write_template(templ_file, dOut, mod_name)
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return dOut
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# Updates an existing .tr file, copying the old one to a ".old" file
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# if any changes have happened
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# dNew is the data used to generate the template, it has all the
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# currently-existing localized strings
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def update_tr_file(dNew, mod_name, tr_file):
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if params["verbose"]:
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print(f"updating {tr_file}")
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tr_import = import_tr_file(tr_file)
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dOld = tr_import[0]
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textOld = tr_import[1]
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textNew = strings_to_text(dNew, dOld, mod_name, tr_import[2], tr_import[3])
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if textOld and textOld != textNew:
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print(f"{tr_file} has changed.")
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if params["old-file"]:
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shutil.copyfile(tr_file, f"{tr_file}.old")
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with open(tr_file, "w", encoding='utf-8') as new_tr_file:
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new_tr_file.write(textNew)
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# Updates translation files for the mod in the given folder
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def update_mod(folder):
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modname = get_modname(folder)
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if modname is not None:
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print(f"Updating translations for {modname}")
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data = generate_template(folder, modname)
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if data == None:
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print(f"No translatable strings found in {modname}")
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else:
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for tr_file in get_existing_tr_files(folder):
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update_tr_file(data, modname, os.path.join(folder, "locale/", tr_file))
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else:
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print(f"Unable to determine the mod name in folder {folder}. Missing 'name' field in mod.conf.", file=_stderr)
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exit(1)
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# Determines if the folder being pointed to is a mod or a mod pack
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# and then runs update_mod accordingly
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def update_folder(folder):
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is_modpack = os.path.exists(os.path.join(folder, "modpack.txt")) or os.path.exists(os.path.join(folder, "modpack.conf"))
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if is_modpack:
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subfolders = [f.path for f in os.scandir(folder) if f.is_dir() and not f.name.startswith('.')]
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for subfolder in subfolders:
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update_mod(subfolder)
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else:
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update_mod(folder)
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print("Done.")
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def run_all_subfolders(folder):
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for modfolder in [f.path for f in os.scandir(folder) if f.is_dir() and not f.name.startswith('.')]:
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update_folder(modfolder)
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|
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main()
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