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import os
import subprocess
from .file_finder import scm_find_files
from .file_finder import is_toplevel_acceptable
def _hg_toplevel(path):
try:
with open(os.devnull, "wb") as devnull:
out = subprocess.check_output(
["hg", "root"],
cwd=(path or "."),
universal_newlines=True,
stderr=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):
hg_files = set()
hg_dirs = {toplevel}
out = subprocess.check_output(
["hg", "files"], cwd=toplevel, universal_newlines=True
)
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=""):
toplevel = _hg_toplevel(path)
if not is_toplevel_acceptable(toplevel):
return []
hg_files, hg_dirs = _hg_ls_files_and_dirs(toplevel)
return scm_find_files(path, hg_files, hg_dirs)
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