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87fa4de59c
The lstrip (left trim) call is to make sure that there are no slashes at the beginning of file paths.
495 lines
16 KiB
Python
Executable File
495 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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folder_name = os.path.basename(folder)
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# Special case when run in Minetest's builtin directory
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return "__builtin" if folder_name == "builtin" else folder_name
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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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i = "/".join(os.path.split(i)).lstrip("/")
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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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if not os.path.exists(os.path.join(folder, "init.lua")):
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print(f"Mod folder {folder} is missing init.lua, aborting.")
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exit(1)
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assert not is_modpack(folder)
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modname = get_modname(folder)
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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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def is_modpack(folder):
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return os.path.exists(os.path.join(folder, "modpack.txt")) or os.path.exists(os.path.join(folder, "modpack.conf"))
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def is_game(folder):
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return os.path.exists(os.path.join(folder, "game.conf")) and os.path.exists(os.path.join(folder, "mods"))
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# Determines if the folder being pointed to is a game, 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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if is_game(folder):
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run_all_subfolders(os.path.join(folder, "mods"))
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elif is_modpack(folder):
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run_all_subfolders(folder)
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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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main()
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