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lib.util.copy(): Add parents flag parameter

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copy() lands a source below the destination root, taking at most the
source's basename, so there is no way to land it at its source path, as cp
--parents does.

Add a parents flag that requests just that.

Signed-off-by: Jan Lindemann <jan@janware.com>
Assisted-by: unsloth/Qwen3.8-27B-GGUF:Q4_K_M with pi.dev v1.1.0
This commit is contained in:
Jan Lindemann 2026-10-04 15:56:48 +02:00
commit 0ca539dc0f
Signed by: Jan Lindemann
GPG key ID: 3750640C9E25DD61
1 changed files with 68 additions and 3 deletions
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42
test/unit/python/jw/pkg/lib/util/test.py
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@ -123,6 +123,48 @@ async def run_tests() -> None:
assert isinstance(ret, list), ret
assert os.path.join(tmp, 'dst/slash/a/f1') in ret, ret
# -- parents lands the object at its source path below the
# destination root, like cp --parents
dst_parents = os.path.join(tmp, 'dst/parents')
os.makedirs(dst_parents)
src_single = os.path.join(tmp, 'src/single')
ret = await copy(uri(src_single), uri(dst_parents), parents = True)
assert ret == dst_parents + src_single, ret
with open(dst_parents + src_single) as f:
assert f.read() == 'solo\n'
# -- parents on a tree lands the tree at its source path
dst_ptree = os.path.join(tmp, 'dst/ptree')
os.makedirs(dst_ptree)
src_tree = os.path.join(tmp, 'src/a')
ret = await copy(
uri(src_tree), uri(dst_ptree), recursive = True, parents = True
)
assert isinstance(ret, list), ret
expected = dst_ptree + src_tree
assert sorted(ret) == sorted([
os.path.join(expected, 'f1'),
os.path.join(expected, 'sub/f2'),
os.path.join(expected, 'sub/subsub/f3'),
]), ret
assert os.path.isdir(os.path.join(expected, 'empty')), ret
# -- a chrooted context source lands at its URI path
dst_pchroot = os.path.join(tmp, 'dst/pchroot')
os.makedirs(dst_pchroot)
src_fc = Local(uri(src_tree), chroot = True)
ret = await copy(src_fc, uri(dst_pchroot), recursive = True, parents = True)
assert isinstance(ret, list), ret
assert os.path.isfile(os.path.join(dst_pchroot + src_tree, 'f1')), ret
# -- re-copying with parents replaces content, not layout
with open(dst_parents + src_single, 'w') as f:
f.write('replaced\n')
ret = await copy(uri(src_single), uri(dst_parents), parents = True)
assert ret == dst_parents + src_single, ret
with open(dst_parents + src_single) as f:
assert f.read() == 'solo\n'
# -- A missing source fails loudly
try:
await copy(