app-catalog-felhom.eu/scripts/catalog_gates.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""catalog_gates.py — THE entry point for this repo's gates. Run from the repo root:

    python3 scripts/catalog_gates.py                 # every AVAILABLE app, all three gates
    python3 scripts/catalog_gates.py papra wishlist  # only these app dirs (the normal case)
    python3 scripts/catalog_gates.py --all           # include hidden/abandoned apps too

Gates, in order (all must pass; **non-zero exit on any failure**):

  1. image-pins          static, instant, whole repo — no :latest / untagged / floating alias
  2. image-resolvable    network — every pinned tag still EXISTS upstream
  3. volume-persistence  RUNTIME — the folder a template preserves is the folder the app writes to

WHY THIS FILE EXISTS (operator ruling, 2026-08-02 — R-161).

The volume-persistence gate was built because papra's backup completed, verified, and contained an
empty directory. The obvious enforcement points were both rejected, each for a measured reason:

  - **Controller-side, at template load: rejected because it would PASS on the defect it exists to
    catch.** A check at load time can only read the file, and papra's compose is well-formed — a
    static audit of all 53 templates reports the catalog clean, papra included. The property is only
    decidable at runtime (see `check-volume-persistence.py`'s header).
  - **CI: rejected for now** — neither repo has any CI to build on, and there are no users yet.

What was chosen instead is the shape that demonstrably works in this project. Of every gate written
here, **the only ones that ever get run are the ones with a single entry point named in a CLAUDE.md**:
`felhom.eu/scripts/site_gates.py` is run; R-29's three orphaned gates are named nowhere and have
stopped nothing. So this copies that shape rather than adding a fourth gate nobody invokes. It is
mandated in `CLAUDE.md` the way `site_gates.py` is.

**R-161 stays OPEN at reduced scope:** this is convention, run by a person. Real automatic
enforcement is owed when a second person touches templates.

EXIT CODES. Each gate returns 0 clean / 1 convicted / 2 inconclusive. This runner exits **non-zero if
any gate is non-zero**, and reports 2 distinctly as INCONCLUSIVE — an undetermined result is never a
pass (an app that wrote nothing has not been shown correct; a throttled registry has not shown an
image alive), but it is also not a conviction, and the operator reading the summary needs to know
which they have.

SCOPE. With app names, every gate that accepts scoping is scoped to them — that is the normal
after-a-template-change run and it is fast. With no names the runtime gate deploys **every** template,
which takes minutes per app and **belongs on a scratch host, never a customer box** (see CLAUDE.md).
"""
import os
import subprocess
import sys

ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
SCRIPTS = os.path.join(ROOT, "scripts")

# (label, filename, accepts_app_scope)
GATES = [
    ("image-pins",         "check-image-pins.py",         False),
    ("image-resolvable",   "check-image-resolvable.py",   True),
    ("volume-persistence", "check-volume-persistence.py", True),
]

VERDICT = {0: "OK", 1: "FAILED", 2: "INCONCLUSIVE"}


def run_gate(label, script, args):
    path = os.path.join(SCRIPTS, script)
    if not os.path.exists(path):
        print("FAIL: %s — %s is missing from scripts/" % (label, script))
        return 1
    print("\n" + "=" * 78)
    print("== gate: %s   (%s%s)" % (label, script, (" " + " ".join(args)) if args else ""))
    print("=" * 78, flush=True)
    # stream the gate's own output rather than capturing it — its diagnostics are the point,
    # and a runner that swallows them makes a conviction unreadable.
    return subprocess.call([sys.executable, path] + args, cwd=ROOT)


def main(argv):
    include_hidden = "--all" in argv
    apps = [a for a in argv if not a.startswith("-")]
    unknown = [a for a in argv if a.startswith("-") and a != "--all"]
    if unknown:
        print("unknown option(s): %s" % " ".join(unknown))
        print(__doc__.strip().splitlines()[0])
        return 2

    scope_note = ("apps: " + ", ".join(apps)) if apps else (
        "ALL apps (runtime gate deploys every template — scratch host only)")
    print("catalog_gates — %s%s" % (scope_note, "  [--all: incl. hidden/abandoned]" if include_hidden else ""))

    results = []
    for label, script, scoped in GATES:
        args = []
        if include_hidden:
            args.append("--all")
        if scoped and apps:
            args += apps
        results.append((label, run_gate(label, script, args)))

    print("\n" + "=" * 78)
    print("== summary")
    print("=" * 78)
    worst = 0
    for label, rc in results:
        print("  %-20s %-13s (exit %d)" % (label, VERDICT.get(rc, "ERROR"), rc))
        # 1 (a conviction) outranks 2 (undetermined) in what it tells the operator to do
        if rc != 0:
            worst = 1 if rc == 1 or worst == 1 else 2
    if worst == 0:
        print("\nall catalog gates OK")
        return 0
    convicted = [l for l, rc in results if rc == 1]
    undecided = [l for l, rc in results if rc not in (0, 1)]
    if convicted:
        print("\nCONVICTED: %s" % ", ".join(convicted))
    if undecided:
        print("UNDETERMINED (never a pass): %s" % ", ".join(undecided))
    return worst


if __name__ == "__main__":
    sys.exit(main(sys.argv[1:]))