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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,92 +1,92 @@ | ||
| import hashlib | ||
| import json | ||
| import re | ||
|
|
||
| from pathlib import Path | ||
| from pprint import pformat | ||
| from typing import Optional, Tuple, Any, Dict, Iterable | ||
| from textwrap import dedent, indent | ||
| from typing import Optional, Any, Dict, Iterable | ||
|
|
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| from entrypoints import EntryPoint, BadEntryPoint | ||
|
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| from .exceptions import TaskMisconfigured | ||
|
|
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| custom_pattern = re.compile(r"[.\w]*:[.\w]*") | ||
|
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||
|
|
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| class Task: | ||
|
|
||
| def __init__(self, function_call: str, *, | ||
| imports: Optional[Iterable[str]]=None, | ||
| from_imports: Optional[Iterable[Tuple[str, str]]]=None, | ||
| def __init__(self, entry_point: str, *, | ||
| args: Optional[Iterable[Any]]=None, | ||
| kwargs: Optional[Dict[str, Any]]=None) -> None: | ||
| if re.match(r".*\s.*", function_call): | ||
| raise TaskMisconfigured("function_call contains a whitespace") | ||
|
|
||
| self.function_call = function_call | ||
| self.imports = list(imports or []) | ||
| self.from_imports = list(from_imports or []) | ||
| if not custom_pattern.match(entry_point): | ||
| raise TaskMisconfigured("Task entry point must be an object, not a module.") | ||
|
|
||
| try: | ||
| self.entry_point = EntryPoint.from_string(entry_point, "task") | ||
| except BadEntryPoint: | ||
| raise TaskMisconfigured("Incorrectly defined entry point.") | ||
|
|
||
| self.args = list(args or []) | ||
| self.kwargs = dict(kwargs or {}) | ||
|
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| def __repr__(self): | ||
| return f"Task({self.function_call})" | ||
|
|
||
| def build_imports(self): | ||
| return "\r\n".join([f" import {x}" for x in self.imports]) | ||
|
|
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| def build_from_imports(self): | ||
| return "\r\n".join([f" from {x[0]} import {x[1]}" for x in self.from_imports]) | ||
| return f"Task({self.entry_point})" | ||
|
|
||
| def build_function_call(self): | ||
| if len(self.args) and len(self.kwargs): | ||
| return "{}(*{}, **{})".format( | ||
| self.function_call, | ||
| return "{!r}.load()(*{}, **{})".format( | ||
| self.entry_point, | ||
| pformat(self.args), | ||
| pformat(self.kwargs) | ||
| ) | ||
| elif len(self.args): | ||
| return "{}(*{})".format( | ||
| self.function_call, | ||
| return "{!r}.load()(*{})".format( | ||
| self.entry_point, | ||
| pformat(self.args) | ||
| ) | ||
| elif len(self.kwargs): | ||
| return "{}(**{})".format( | ||
| self.function_call, | ||
| return "{!r}.load()(**{})".format( | ||
| self.entry_point, | ||
| pformat(self.kwargs) | ||
| ) | ||
| else: | ||
| return f"{self.function_call}()" | ||
|
|
||
| def build_script(self, venv_path: Path=None) -> str: | ||
| result = "" | ||
|
|
||
| if venv_path is not None: | ||
| result += "#!" + str(venv_path.resolve() / "bin" / "python3") + "\r\n\r\n" | ||
| else: | ||
| result += "#!python3\r\n" | ||
|
|
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| result += "# encoding=utf-8\r\n\r\n" | ||
| result += "import json\r\n" | ||
| result += "import traceback\r\n" | ||
| result += "import sys\r\n" | ||
| result += "import os\r\n" | ||
| result += "sys.path.insert(1, os.getcwd())\r\n" | ||
| result += "try:\r\n" | ||
|
|
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| result += self.build_imports() + "\r\n" | ||
| result += self.build_from_imports() + "\r\n" | ||
|
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| result += f""" | ||
| res = {self.build_function_call()} | ||
| print(json.dumps({{"success": True, "result": res}})) | ||
| except: | ||
| print(json.dumps({{"success": False, "error": traceback.format_exc()}})) | ||
| """ | ||
|
|
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| return result | ||
| return "{!r}.load()()".format(self.entry_point) | ||
|
|
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| def build_script(self) -> str: | ||
| function_call = self.build_function_call() | ||
| function_call = indent(function_call, " ", lambda x: not x.startswith("EntryPoint")) | ||
|
|
||
| return dedent(f""" | ||
| # encoding=utf-8 | ||
| import json | ||
| import traceback | ||
| import sys | ||
| import os | ||
| from importlib import import_module | ||
| class EntryPoint: | ||
| def __init__(self, name, module_name, object_name, *args, **kwargs): | ||
| self.module_name = module_name | ||
| self.object_name = object_name | ||
| def load(self): | ||
| mod = import_module(self.module_name) | ||
| obj = mod | ||
| for attr in self.object_name.split('.'): | ||
| obj = getattr(obj, attr) | ||
| return obj | ||
| sys.path.insert(1, os.getcwd()) | ||
| try: | ||
| res = {function_call} | ||
| print(json.dumps({{"success": True, "result": res}})) | ||
| except: | ||
| print(json.dumps({{"success": False, "error": traceback.format_exc()}})) | ||
| """) | ||
|
|
||
| def serialize(self): | ||
| return hashlib.sha1(bytes(json.dumps({ | ||
| "function_call": self.function_call, | ||
| "imports": self.imports, | ||
| "from_imports": self.from_imports, | ||
| "entry_point": self.entry_point.__repr__(), | ||
| "args": self.args, | ||
| "kwargs": self.kwargs, | ||
| }), "utf-8")).hexdigest() |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -8,3 +8,5 @@ pytest-mock | |
| requests | ||
| python-vagrant | ||
| fabric3 | ||
| entrypoints>=0.2.3 | ||
|
|
||
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