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treesitter_grammar.req
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File treesitter_grammar.req of Package tree-sitter
#!/usr/bin/python3 """Scan grammar JavaScript sources for their dependencies""" # SPDX-License-Identifier: MIT # SPDX-FileCopyrightText: 2024 Björn Bidar # pylint: disable=invalid-name import platform import fileinput import re from typing import Optional from pathlib import Path if platform.sys.version_info.minor < 9: def remove_prefix(text, prefix): if text.startswith(prefix): return text[len(prefix):] return text def remove_suffix(text, suffix): if text.endswith(suffix): return text[:-len(suffix):] return text treeSitterGrammarSrcPath = "/usr/include/tree_sitter" treeSitterGrammarSymbolToken = "treesitter_grammar_src" grammarPaths = [] def resolveFile(grammarFile: str) -> str: """Resolve GRAMMARFILE from grammarPaths return found file""" fullGrammarFilePath = Path(grammarFile) currentGrammarPath = fullGrammarFilePath.parent currentGrammarFile = Path(grammarFile) if currentGrammarPath != Path('.') and currentGrammarPath.parts[0] == "..": # resolve path relative to file found last currentGrammarPath = grammarPaths[-1] / fullGrammarFilePath if not currentGrammarPath.exists(): return False return currentGrammarPath if currentGrammarPath.is_absolute(): grammarPaths.append(currentGrammarPath) if Path(grammarFile).exists(): return fullGrammarFilePath for path in grammarPaths: maybeFound = path / currentGrammarFile if maybeFound.exists(): return maybeFound.exists() return False def dummyRequire(requiredFile_fd: str, maxDepth: Optional[int] = 5 ) -> str: """Dummy version of node's require function that spits out dependency symbols""" if maxDepth <= 0: return if not requiredFile_fd.endswith(".js"): # Append .js to required file name in case is not specified # we have to remove .js suffix later in any case. requiredFile_fd+=".js" resolvedFile_fd = resolveFile(requiredFile_fd) if resolvedFile_fd: try: with open(resolvedFile_fd, mode='r', encoding='utf8') as requiredFile: for r_line in requiredFile: require_re = r'.*require\((.*)\).*' requiredLvl2 = re.match(require_re, r_line) #print(r_line) if requiredLvl2 is not None: if platform.sys.version_info.minor < 9: requiredLvl2_grp_cleaned = \ remove_suffix(remove_prefix(requiredLvl2.group(1), "'"), "'") requiredLvl2_grp_cleaned = \ remove_suffix(remove_prefix(requiredLvl2_grp_cleaned, "\""), "\"") else: requiredLvl2_grp_cleaned = \ requiredLvl2.group(1).removeprefix("'").removesuffix("'") requiredLvl2_grp_cleaned = \ requiredLvl2_grp_cleaned.removeprefix("\"").removesuffix("\"") if not requiredLvl2_grp_cleaned.split('/')[0] == "..": # Don't emit dependencies which are local pass dummyRequire(requiredLvl2_grp_cleaned, maxDepth - 1) except FileNotFoundError: pass else: if maxDepth == 5: # In case we immediately fail to open the first grammar source file return # We only want to resolve dependencies outside of the package print(f"{treeSitterGrammarSymbolToken}({Path(requiredFile_fd).parent})") for line in fileinput.input(): line = line.rstrip('\n') if line.endswith('.js'): dummyRequire(line)
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