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from __future__ import annotations
import os
import subprocess
from . import _types as _t
from .file_finder import is_toplevel_acceptable
from .file_finder import scm_find_files
from .utils import data_from_mime
from .utils import do_ex
from .utils import trace
def _hg_toplevel(path: str) -> str | None:
try:
out: str = subprocess.check_output(
["hg", "root"],
cwd=(path or "."),
text=True,
stderr=subprocess.DEVNULL,
)
return os.path.normcase(os.path.realpath(out.strip()))
except subprocess.CalledProcessError:
# hg returned error, we are not in a mercurial repo
return None
except OSError:
# hg command not found, probably
return None
def _hg_ls_files_and_dirs(toplevel: str) -> tuple[set[str], set[str]]:
hg_files: set[str] = set()
hg_dirs = {toplevel}
out, err, ret = do_ex(["hg", "files"], cwd=toplevel)
if ret:
(), ()
for name in out.splitlines():
name = os.path.normcase(name).replace("/", os.path.sep)
fullname = os.path.join(toplevel, name)
hg_files.add(fullname)
dirname = os.path.dirname(fullname)
while len(dirname) > len(toplevel) and dirname not in hg_dirs:
hg_dirs.add(dirname)
dirname = os.path.dirname(dirname)
return hg_files, hg_dirs
def hg_find_files(path: str = "") -> list[str]:
toplevel = _hg_toplevel(path)
if not is_toplevel_acceptable(toplevel):
return []
assert toplevel is not None
hg_files, hg_dirs = _hg_ls_files_and_dirs(toplevel)
return scm_find_files(path, hg_files, hg_dirs)
def hg_archive_find_files(path: _t.PathT = "") -> list[str]:
# This function assumes that ``path`` is obtained from a mercurial archive
# and therefore all the files that should be ignored were already removed.
archival = os.path.join(path, ".hg_archival.txt")
if not os.path.exists(archival):
return []
data = data_from_mime(archival)
if "node" not in data:
# Ensure file is valid
return []
trace("hg archive detected - fallback to listing all files")
return scm_find_files(path, set(), set(), force_all_files=True)
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