| 39 | |
| 40 | |
| 41 | class Checkers: |
| 42 | _depend_on_existence = "exists", "link", "dir", "file" |
| 43 | |
| 44 | def __init__(self, path): |
| 45 | self.path = path |
| 46 | |
| 47 | def dotfile(self): |
| 48 | return self.path.basename.startswith(".") |
| 49 | |
| 50 | def ext(self, arg): |
| 51 | if not arg.startswith("."): |
| 52 | arg = "." + arg |
| 53 | return self.path.ext == arg |
| 54 | |
| 55 | def basename(self, arg): |
| 56 | return self.path.basename == arg |
| 57 | |
| 58 | def basestarts(self, arg): |
| 59 | return self.path.basename.startswith(arg) |
| 60 | |
| 61 | def relto(self, arg): |
| 62 | return self.path.relto(arg) |
| 63 | |
| 64 | def fnmatch(self, arg): |
| 65 | return self.path.fnmatch(arg) |
| 66 | |
| 67 | def endswith(self, arg): |
| 68 | return str(self.path).endswith(arg) |
| 69 | |
| 70 | def _evaluate(self, kw): |
| 71 | from .._code.source import getrawcode |
| 72 | |
| 73 | for name, value in kw.items(): |
| 74 | invert = False |
| 75 | meth = None |
| 76 | try: |
| 77 | meth = getattr(self, name) |
| 78 | except AttributeError: |
| 79 | if name[:3] == "not": |
| 80 | invert = True |
| 81 | try: |
| 82 | meth = getattr(self, name[3:]) |
| 83 | except AttributeError: |
| 84 | pass |
| 85 | if meth is None: |
| 86 | raise TypeError(f"no {name!r} checker available for {self.path!r}") |
| 87 | try: |
| 88 | if getrawcode(meth).co_argcount > 1: |
| 89 | if (not meth(value)) ^ invert: |
| 90 | return False |
| 91 | else: |
| 92 | if bool(value) ^ bool(meth()) ^ invert: |
| 93 | return False |
| 94 | except (error.ENOENT, error.ENOTDIR, error.EBUSY): |
| 95 | # EBUSY feels not entirely correct, |
| 96 | # but its kind of necessary since ENOMEDIUM |
| 97 | # is not accessible in python |
| 98 | for name in self._depend_on_existence: |