Coverage for src/su6_plugin_svelte_check/find_project_root.py: 100%
18 statements
« prev ^ index » next coverage.py v7.2.7, created at 2023-07-17 14:04 +0200
« prev ^ index » next coverage.py v7.2.7, created at 2023-07-17 14:04 +0200
1"""
2Modified from black.files.
3"""
4from functools import lru_cache
5from pathlib import Path
6from typing import Optional, Sequence, Tuple
9@lru_cache()
10def find_project_root(srcs: Sequence[str], stdin_filename: Optional[str] = None) -> Tuple[Path, str]:
11 """
12 Return a directory containing .git, .hg, or pyproject.toml.
14 That directory will be a common parent of all files and directories
15 passed in `srcs`.
17 If no directory in the tree contains a marker that would specify it's the
18 project root, the root of the file system is returned.
20 Returns a two-tuple with the first element as the project root path and
21 the second element as a string describing the method by which the
22 project root was discovered.
23 """
24 if stdin_filename is not None:
25 srcs = tuple(stdin_filename if s == "-" else s for s in srcs)
26 if not srcs:
27 srcs = [str(Path.cwd().resolve())]
29 path_srcs = [Path(Path.cwd(), src).resolve() for src in srcs]
31 # A list of lists of parents for each 'src'. 'src' is included as a
32 # "parent" of itself if it is a directory
33 src_parents = [list(path.parents) + ([path] if path.is_dir() else []) for path in path_srcs]
35 common_base = max(
36 set.intersection(*(set(parents) for parents in src_parents)),
37 key=lambda path: path.parts,
38 )
40 for directory in (common_base, *common_base.parents):
41 if (directory / "node_modules").exists():
42 return directory, "node_modules"
44 if (directory / ".git").exists():
45 return directory, ".git directory"
47 if (directory / ".hg").is_dir(): # pragma: no cover
48 return directory, ".hg directory"
50 if (directory / "pyproject.toml").is_file(): # pragma: no cover
51 return directory, "pyproject.toml"
53 return directory, "file system root"