feat(presets): resolve constitution templates at command time (#3984)

* feat(presets): resolve constitutions at command time

Gate install-time constitution materialization behind the constitution-sync preset while preserving one-time init seeding and authored-file safeguards.

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 7dbce70f-80c6-4e14-a30d-78cb358bcb84

* fix(presets): emit composed template content

Add a machine-readable preset resolve mode backed by PresetResolver.resolve_content and require the constitution command to consume it.

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 7dbce70f-80c6-4e14-a30d-78cb358bcb84

* fix(presets): unify runtime template composition

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

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* fix(presets): secure runtime template resolution

Align runtime resolution across script variants, validate registry path components, and honor canonical extension ordering and convention paths.

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): align runtime priority semantics

Normalize and tie-break preset priorities consistently across script variants, and preserve template bytes when Python materializes generated files.

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): stop at effective template base

Avoid parsing irrelevant lower layers once resolution reaches a replace base, and decode raw bytes so Python preserves source line endings.

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): align extension template resolution

Support root-level extension templates across runtime resolvers, fail safely when Bash cannot parse an extension registry, and validate requested templates in every prerequisite output mode.

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* fix(presets): resolve dotted command identifiers

Route safe dotted names through command resolution, correct traversal coverage, and make Windows CI text decoding explicit.

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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Avoid orphan feature directories on template errors

Assisted-by: GitHub Copilot (model: GPT-5.6 Sol, autonomous)

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

* Align malformed preset manifest handling

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Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 3158e06f-95df-4e3a-843f-f159a35aa30c

* Complete runtime resolver parity

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* Fail closed on resolver input errors

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* Force UTF-8 and full manifest validation

Force UTF-8 decoding for registry and manifest reads in the Bash and
PowerShell embedded-Python parsers so resolution no longer depends on the
process locale, and validate every manifest template entry's required
fields, type, and strategy consistent with the canonical PresetManifest.

Assisted-by: GitHub Copilot (model: claude-opus-4.8, autonomous)
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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* Fail closed on empty manifests and corrupt registries

Reject manifests missing the provides/templates sections or declaring an
empty template list in all three runtime resolvers, matching the canonical
PresetManifest which treats those as invalid instead of silently degrading a
composing layer to a convention `replace` lookup.

Make a corrupt or unreadable extension registry fail closed in Bash,
PowerShell, and Python instead of swallowing the error and treating every
on-disk extension directory as unregistered-and-enabled, which could activate
a disabled extension.

Read the preset and extension registries as explicit UTF-8 in the PowerShell
resolver so priority/enabled-state decoding no longer depends on the process
code page under Windows PowerShell 5.1.

Assisted-by: GitHub Copilot (model: claude-opus-4.8, autonomous)
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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* fix(presets): fail closed when extension registry is not a regular file

The Bash and Python resolvers used is_file()/`-f` to gate reading the
extension `.registry`, which returns false for a directory or a broken
symlink at that path. In those cases the resolvers treated the registry
as absent and scanned every on-disk extension directory as unregistered
and enabled — a fail-open path. Detect any filesystem entry at the
registry path (including broken symlinks) and reject unless it is a
readable regular file. PowerShell now rejects a non-leaf entry explicitly
for parity. Adds directory- and broken-symlink parity regressions.

Assisted-by: GitHub Copilot (model: claude-opus-4.8, autonomous)
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3158e06f-95df-4e3a-843f-f159a35aa30c

* fix(presets): fail closed on corrupt registry in canonical resolver and PowerShell

Two remaining fail-open paths for an invalid extension registry:

- The canonical PresetResolver enumerated extensions through
  ExtensionRegistry, whose _load() normalizes a corrupt or unreadable
  registry to an empty mapping. The directory scan then admitted every
  on-disk extension directory as unregistered-and-enabled, so a corrupt
  registry could still supply constitution content at init and through
  constitution-sync materialization. Add a non-invasive is_corrupt()
  probe (recovery behavior for install/enable/disable is unchanged) and
  raise from _get_all_extensions_by_priority() when the registry exists
  but is invalid. _load() now also recovers from OSError/UnicodeDecodeError
  so a directory or unreadable registry no longer crashes construction.

- The PowerShell resolver gated the registry read with Test-Path, which
  returns false for a dangling symlink on Windows, letting a broken
  .registry symlink bypass the guard and enable every on-disk extension.
  Detect the entry via directory enumeration (which observes a broken
  symlink) and reject it unless it is a readable regular file.

Adds canonical corrupt/directory-registry regressions and extends the
broken-symlink parity test to PowerShell.

Assisted-by: GitHub Copilot (model: claude-opus-4.8, autonomous)
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3158e06f-95df-4e3a-843f-f159a35aa30c

* fix(presets): detect dangling registry symlink in ExtensionRegistry.is_corrupt

is_corrupt() gated on Path.exists(), which follows symlinks and returns
False for a dangling .registry symlink — so the canonical PresetResolver
treated it as an absent registry and fell back to scanning every on-disk
extension directory as unregistered-and-enabled, reopening the fail-open
path this guard closes. Detect lexical existence with os.path.lexists and
require a regular file before parsing, so a broken symlink (or directory)
is reported corrupt and resolution fails closed. Adds a canonical
broken-symlink regression alongside the directory case.

Assisted-by: GitHub Copilot (model: claude-opus-4.8, autonomous)
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 3158e06f-95df-4e3a-843f-f159a35aa30c

---------

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 7dbce70f-80c6-4e14-a30d-78cb358bcb84
Copilot-Session: 3158e06f-95df-4e3a-843f-f159a35aa30c
This commit is contained in:
Manfred Riem
2026-08-10 10:22:31 -05:00
committed by GitHub
co-authored by Copilot App
parent 1a60d1b6b8
commit 16cfab7724
45 changed files with 2721 additions and 361 deletions
@@ -12,6 +12,7 @@ from pathlib import Path
import pytest
from tests.conftest import requires_bash
from tests.parity_helpers import install_composition_stack
PROJECT_ROOT = Path(__file__).resolve().parent.parent
COMMON_SH = PROJECT_ROOT / "scripts" / "bash" / "common.sh"
@@ -136,6 +137,87 @@ def _normalize_help_text(text: str) -> str:
return "\n".join("" if not line.strip() else line for line in normalized.split("\n"))
@requires_bash
@pytest.mark.parametrize("missing", [False, True], ids=["composed", "missing"])
def test_all_variants_resolve_requested_template(
prereq_repo: Path, missing: bool
) -> None:
_write_feature_json(prereq_repo)
feature = prereq_repo / "specs" / "001-my-feature"
feature.mkdir(parents=True)
(feature / "plan.md").write_text("# Plan\n", encoding="utf-8")
template_name = "missing-template" if missing else "checklist-template"
expected = install_composition_stack(
prereq_repo, "checklist-template", "# Checklist\n"
)
results = [
_run(
_bash_cmd(prereq_repo, "--json", "--template", template_name),
prereq_repo,
),
_run(
_py_cmd(prereq_repo, "--json", "--template", template_name),
prereq_repo,
),
]
if HAS_PWSH or _WINDOWS_POWERSHELL:
results.append(
_run(
_ps_cmd(prereq_repo, "-Json", "-Template", template_name),
prereq_repo,
)
)
expected_status = 1 if missing else 0
assert all(result.returncode == expected_status for result in results)
if missing:
assert all(result.stdout == "" for result in results)
else:
assert all(
_json_stdout(result)["TEMPLATE_CONTENT"] == expected
for result in results
)
@requires_bash
@pytest.mark.parametrize("missing", [False, True], ids=["composed", "missing"])
def test_all_variants_validate_requested_template_in_text_mode(
prereq_repo: Path, missing: bool
) -> None:
_write_feature_json(prereq_repo)
feature = prereq_repo / "specs" / "001-my-feature"
feature.mkdir(parents=True)
(feature / "plan.md").write_text("# Plan\n", encoding="utf-8")
template_name = "missing-template" if missing else "checklist-template"
install_composition_stack(
prereq_repo, "checklist-template", "# Checklist\n"
)
results = [
_run(
_bash_cmd(prereq_repo, "--template", template_name),
prereq_repo,
),
_run(
_py_cmd(prereq_repo, "--template", template_name),
prereq_repo,
),
]
if HAS_PWSH or _WINDOWS_POWERSHELL:
results.append(
_run(
_ps_cmd(prereq_repo, "-Template", template_name),
prereq_repo,
)
)
expected_status = 1 if missing else 0
assert all(result.returncode == expected_status for result in results)
if missing:
assert all(result.stdout == "" for result in results)
@requires_bash
@pytest.mark.parametrize(
"args",