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import textwrap
from typing import Optional
import pytest
from debputy.highlevel_manifest import HighLevelManifest
from debputy.highlevel_manifest_parser import YAMLManifestParser
from debputy.interpreter import extract_shebang_interpreter
from debputy.plugin.api import virtual_path_def
from debputy.plugin.api.test_api import build_virtual_file_system
from debputy.transformation_rules import NormalizeShebangLineTransformation
@pytest.mark.parametrize(
"raw_shebang,original_command,command_full_basename,command_stem,correct_command,corrected_shebang_line",
[
(
b"#! /usr/bin/false\r\n",
"/usr/bin/false",
"false",
"false",
None,
None,
),
(
b"#!/usr/bin/python3 -b",
"/usr/bin/python3",
"python3",
"python",
"/usr/bin/python3",
None,
),
(
b"#!/usr/bin/env python3 -b",
"/usr/bin/env python3",
"python3",
"python",
"/usr/bin/python3",
"#! /usr/bin/python3 -b",
),
(
b"#! /bin/env python3.12-dbg -b",
"/bin/env python3.12-dbg",
"python3.12-dbg",
"python",
"/usr/bin/python3.12-dbg",
"#! /usr/bin/python3.12-dbg -b",
),
(
b"#! /usr/bin/bash",
"/usr/bin/bash",
"bash",
"bash",
"/bin/bash",
"#! /bin/bash",
),
(
b"#! /usr/bin/env sh",
"/usr/bin/env sh",
"sh",
"sh",
"/bin/sh",
"#! /bin/sh",
),
(
b"#! /usr/local/bin/perl",
"/usr/local/bin/perl",
"perl",
"perl",
"/usr/bin/perl",
"#! /usr/bin/perl",
),
],
)
def test_interpreter_detection(
raw_shebang: bytes,
original_command: str,
command_full_basename: str,
command_stem: str,
correct_command: str | None,
corrected_shebang_line: str | None,
) -> None:
interpreter = extract_shebang_interpreter(raw_shebang)
# The `and ...` part is just to get the raw line in the error message
assert interpreter is not None
assert interpreter.original_command == original_command
assert interpreter.command_full_basename == command_full_basename
assert interpreter.command_stem == command_stem
assert interpreter.correct_command == correct_command
assert interpreter.corrected_shebang_line == corrected_shebang_line
assert interpreter.fixup_needed == (corrected_shebang_line is not None)
@pytest.mark.parametrize(
"raw_data",
[
b"#!#!#! /usr/bin/false",
b"#!perl", # Used in files as an editor hint
b"\x7fELF/usr/bin/perl",
b"\x00\01\x02\x03/usr/bin/perl",
b"PK\x03\x03/usr/bin/perl",
],
)
def test_interpreter_negative(raw_data: bytes) -> None:
assert extract_shebang_interpreter(raw_data) is None
@pytest.fixture
def empty_manifest(
amd64_dpkg_architecture_variables,
dpkg_arch_query,
source_package,
package_single_foo_arch_all_cxt_amd64,
amd64_substitution,
no_profiles_or_build_options,
debputy_plugin_feature_set,
) -> HighLevelManifest:
# We need an empty directory to avoid triggering packager provided files.
debian_dir = build_virtual_file_system([])
return YAMLManifestParser(
"debian/test-debputy.manifest",
source_package,
package_single_foo_arch_all_cxt_amd64,
amd64_substitution,
amd64_dpkg_architecture_variables,
dpkg_arch_query,
no_profiles_or_build_options,
debputy_plugin_feature_set,
"full",
debian_dir=debian_dir,
).build_manifest()
def test_interpreter_rewrite(empty_manifest: HighLevelManifest) -> None:
condition_context = empty_manifest.condition_context("foo")
fs_root = build_virtual_file_system(
[
virtual_path_def("usr/bin/foo", content="random data"),
virtual_path_def(
"usr/bin/foo.sh",
materialized_content="#!/usr/bin/sh\nset -e\n",
),
]
)
interpreter_normalization = NormalizeShebangLineTransformation()
interpreter_normalization.transform_file_system(fs_root, condition_context)
foo = fs_root.lookup("usr/bin/foo")
foo_sh = fs_root.lookup("usr/bin/foo.sh")
assert foo is not None and foo.is_file
with foo.open() as fd:
assert fd.read() == "random data"
assert foo_sh is not None and foo_sh.is_file
with foo_sh.open() as fd:
expected = textwrap.dedent(
"""\
#! /bin/sh
set -e
"""
)
assert fd.read() == expected
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