71 lines
3.0 KiB
Python
71 lines
3.0 KiB
Python
"""install.sh reads the python pin from pm/lock.json by structure, not layout.
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bootstrap_python's pre-Python awk reader must follow object names and braces
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(the same contract setup-hermes.sh's pin() established), so any indentation the
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lock writer produces resolves the same pinned version.
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"""
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import json
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import os
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from pathlib import Path
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import shlex
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import shutil
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import subprocess
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import sys
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import pytest
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ROOT = Path(__file__).resolve().parents[1]
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pytestmark = pytest.mark.platforms("posix")
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@pytest.mark.parametrize("indent,blank_lines", [(2, False), (4, False), (0, False), ("\t", False), (4, True)],
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ids=["two-spaces", "four-spaces", "no-indent", "tabs", "blank-lines"])
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@pytest.mark.parametrize("entrypoint", ["bootstrap_python", "stage_venv"])
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def test_bootstrap_python_reads_pin_independent_of_indentation(tmp_path, indent, blank_lines, entrypoint):
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bash = shutil.which("bash")
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assert bash, "the shell bootstrap contract requires Bash"
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core = tmp_path / "checkout"
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(core / "pm").mkdir(parents=True)
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py_version = f"{sys.version_info.major}.{sys.version_info.minor}"
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interpreter = str(Path(sys._base_executable).resolve())
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calls = tmp_path / "uv-calls"
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uv = tmp_path / "uv"
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uv.write_text(
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f"#!{bash}\nset -eu\n"
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f"printf '%s\\n' \"$*\" >> {shlex.quote(str(calls))}\n"
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'case "$*" in\n'
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f' "python install --no-bin {py_version}") ;;\n'
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f' "python find --managed-python {py_version}") printf \'%s\\n\' {shlex.quote(interpreter)} ;;\n'
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' *) exit 91 ;;\n'
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'esac\n',
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encoding="utf-8",
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)
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uv.chmod(0o755)
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decoy = {"sha256": "0" * 64, "url": "http://127.0.0.1:1/wrong.tar.gz"}
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data = {"packages": {
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"before": {"artifacts": {"any": decoy}, "version": "wrong-before"},
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"python": {"artifacts": {"any": decoy}, "version": f"{py_version}.7+fixture"},
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"after": {"artifacts": {"any": decoy}, "version": "wrong-after"},
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}}
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content = json.dumps(data, indent=indent)
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if blank_lines:
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content = content.replace("\n", "\n \t\n")
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(core / "pm" / "lock.json").write_text(content + "\n", encoding="utf-8")
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script = (
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f'source "{(ROOT / "scripts/install.sh").as_posix()}" --manifest\n'
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f'ensure_uv() {{ UV_CMD="{uv.as_posix()}"; }}\n'
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f'INSTALL_DIR="{core.as_posix()}"\n'
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f"{entrypoint}\n"
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)
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env = dict(os.environ, HOME=str(tmp_path), HERMES_HOME=str(tmp_path / ".hermes"))
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result = subprocess.run(["bash", "-c", script], env=env, capture_output=True, text=True, timeout=30)
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assert result.returncode == 0, result.stdout + result.stderr
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# A layout-sensitive reader resolves no version, falls back to "3.14", and
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# the fake uv exits 91 on the unexpected argument — so the recorded calls
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# pinning THIS interpreter's version are the contract.
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assert calls.read_text().splitlines() == [
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f"python install --no-bin {py_version}",
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f"python find --managed-python {py_version}",
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]
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