init

.venv/lib/python3.8/site-packages/virtualenv/util/path/_sync.py

@@ -0,0 +1,97 @@
+from __future__ import absolute_import, unicode_literals
+
+import logging
+import os
+import shutil
+from stat import S_IWUSR
+
+from six import PY2
+
+from virtualenv.info import IS_CPYTHON, IS_WIN
+from virtualenv.util.six import ensure_text
+
+if PY2 and IS_CPYTHON and IS_WIN:  # CPython2 on Windows supports unicode paths if passed as unicode
+
+    def norm(src):
+        return ensure_text(str(src))
+
+else:
+    norm = str
+
+
+def ensure_dir(path):
+    if not path.exists():
+        logging.debug("create folder %s", ensure_text(str(path)))
+        os.makedirs(norm(path))
+
+
+def ensure_safe_to_do(src, dest):
+    if src == dest:
+        raise ValueError("source and destination is the same {}".format(src))
+    if not dest.exists():
+        return
+    if dest.is_dir() and not dest.is_symlink():
+        logging.debug("remove directory %s", dest)
+        safe_delete(dest)
+    else:
+        logging.debug("remove file %s", dest)
+        dest.unlink()
+
+
+def symlink(src, dest):
+    ensure_safe_to_do(src, dest)
+    logging.debug("symlink %s", _Debug(src, dest))
+    dest.symlink_to(src, target_is_directory=src.is_dir())
+
+
+def copy(src, dest):
+    ensure_safe_to_do(src, dest)
+    is_dir = src.is_dir()
+    method = copytree if is_dir else shutil.copy
+    logging.debug("copy %s", _Debug(src, dest))
+    method(norm(src), norm(dest))
+
+
+def copytree(src, dest):
+    for root, _, files in os.walk(src):
+        dest_dir = os.path.join(dest, os.path.relpath(root, src))
+        if not os.path.isdir(dest_dir):
+            os.makedirs(dest_dir)
+        for name in files:
+            src_f = os.path.join(root, name)
+            dest_f = os.path.join(dest_dir, name)
+            shutil.copy(src_f, dest_f)
+
+
+def safe_delete(dest):
+    def onerror(func, path, exc_info):
+        if not os.access(path, os.W_OK):
+            os.chmod(path, S_IWUSR)
+            func(path)
+        else:
+            raise
+
+    shutil.rmtree(ensure_text(str(dest)), ignore_errors=True, onerror=onerror)
+
+
+class _Debug(object):
+    def __init__(self, src, dest):
+        self.src = src
+        self.dest = dest
+
+    def __str__(self):
+        return "{}{} to {}".format(
+            "directory " if self.src.is_dir() else "",
+            ensure_text(str(self.src)),
+            ensure_text(str(self.dest)),
+        )
+
+
+__all__ = (
+    "ensure_dir",
+    "symlink",
+    "copy",
+    "symlink",
+    "copytree",
+    "safe_delete",
+)