def test_get_host_tool_failure(monkeypatch):
monkeypatch.setattr(shutil, "which", lambda x: None)
with pytest.raises(errors.SnapcraftHostToolNotFoundError) as error:
file_utils.get_host_tool_path(command_name="foo",
package_name="foo-pkg")
assert error.command_name == "foo"
assert error.package_name == "foo-pkg"
def _get_usable_keys(name=None):
snap_path = get_host_tool_path(command_name="snap", package_name="snapd")
keys = json.loads(
subprocess.check_output([snap_path, "keys", "--json"],
universal_newlines=True))
if keys is not None:
for key in keys:
if name is None or name == key["name"]:
yield key
def _pack(
directory: str, *, compression: Optional[str] = None, output: Optional[str]
) -> None:
"""Pack a snap.
:param directory: directory to snap
:param compression: compression type to use, None for defaults
:param output: Output may either be:
(1) a directory path to output snaps to
(2) an explicit file path to output snap to
(3) unpsecified/None to output to current (project) directory
"""
output_file = None
output_dir = None
if output:
output_path = pathlib.Path(output)
output_parent = output_path.parent
if output_path.is_dir():
output_dir = str(output_path)
elif output_parent and output_parent != pathlib.Path("."):
output_dir = str(output_parent)
output_file = output_path.name
else:
output_file = output
snap_path = file_utils.get_host_tool_path(command_name="snap", package_name="snapd")
command: List[Union[str, pathlib.Path]] = [snap_path, "pack"]
# When None, just use snap pack's default settings.
if compression is not None:
if compression != "xz":
echo.warning(
f"EXPERIMENTAL: Setting the squash FS compression to {compression!r}."
)
command.extend(["--compression", compression])
if output_file is not None:
command.extend(["--filename", output_file])
command.append(directory)
if output_dir is not None:
command.append(output_dir)
logger.debug(f"Running pack command: {command}")
snap_filename = _run_pack(command)
echo.info(f"Snapped {snap_filename}")
def _ldd(path: str,
ld_library_paths: List[str],
*,
ld_preload: Optional[str] = None) -> Dict[str, str]:
"""Use host ldd to determine library dependencies."""
ldd_path = str(
file_utils.get_host_tool_path(command_name="ldd",
package_name="libc-bin"))
env = {
"LD_LIBRARY_PATH": ":".join(ld_library_paths),
}
if ld_preload:
env["LD_PRELOAD"] = ld_preload
return _parse_ldd_output(_check_output([ldd_path, path], extra_env=env))
def _generate_snap_build(authority_id, snap_id, grade, key_name, snap_filename):
"""Return the signed snap-build declaration for a snap on disk."""
snap_path = get_host_tool_path(command_name="snap", package_name="snapd")
cmd = [
snap_path,
"sign-build",
"--developer-id=" + authority_id,
"--snap-id=" + snap_id,
"--grade=" + grade,
]
if key_name:
cmd.extend(["-k", key_name])
cmd.append(snap_filename)
try:
return subprocess.check_output(cmd)
except subprocess.CalledProcessError as e:
raise storeapi.errors.SignBuildAssertionError(snap_filename) from e
def _pack(directory: str,
*,
compression: Optional[str] = None,
output: Optional[str]) -> None:
snap_path = file_utils.get_host_tool_path(command_name="snap",
package_name="snapd")
command: List[Union[str, pathlib.Path]] = [snap_path, "pack"]
# When None, just use snap pack's default settings.
if compression is not None:
if compression != "xz":
echo.warning(
f"EXPERIMENTAL: Setting the squash FS compression to {compression!r}."
)
command.extend(["--compression", compression])
if output is not None:
command.extend(["--filename", output])
command.append(directory)
snap_filename = _run_pack(command)
echo.info(f"Snapped {snap_filename}")
def test_get_host_tool_finds_command(monkeypatch):
monkeypatch.setattr(shutil, "which", lambda x: "/usr/bin/foo")
assert file_utils.get_host_tool_path(command_name="foo",
package_name="foo")
