Files
computer-playbook/utils/env
kevinveenbirkenbachandClaude Opus 4.8 d9a53a0545 chore(lint): pin ruff to 0.16.0 and resolve the rules that version enforces
The ruff toolchain was unpinned, so host venvs, the lint container and CI
installed different releases over time. That drift is why lint-python only
failed on CI: locally ruff 0.15.x preview-gated ISC004/FURB192 and (falsely)
fired S310 on urllib.request.Request, while CI's 0.16.0 has ISC004/FURB192
stable and drops the S310-on-Request false positive.

Pin ruff==0.16.0 in pyproject.toml's dev extras (Dependabot keeps it current)
and have utils.install.lint.ruff read that pin and reinstall whenever the
found version drifts, so every environment resolves the same ruff. Then fix
what 0.16.0 flags: parenthesise the implicit string concatenations (ISC004),
use min() over sorted()[0] (FURB192), drop the now-unused S310 noqa on the
Request() builders (RUF100), and delete the narration comments that the
comment lint surfaces in the touched files.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-23 23:08:26 +02:00
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utils/env 📐

This directory hosts the Python implementation behind make dotenv. For the general rules that govern READMEs in code directories see documentation.md. For the per-variable defaults that this code consumes see default.env.

Purpose 🎯

The package converts the committed default.env plus a small runtime context into the gitignored .env at the repo root. Every module here belongs to one of four roles: parse, resolve, orchestrate, write.

Structure 🗂️

File Role
parser.py Read default.env into (values, comments) tuples.
runtime.py Resolve host-context lookups (disk, RAM, hostname, GHA/Act flags, /proc/version, helper-script invocation).
builder.py Thin orchestrator that defines EnvBuilder, BuildContext, and build_env(). Walks the handler registry.
writer.py Serialise an EnvBuilder into a docker-compose-compatible .env on disk.
handlers/ One module per dynamically-computed variable. See handlers README.

The CLI entry point lives at __main__.py under cli/meta/env/. Shell consumers source load.sh under scripts/meta/env/.

File Naming 🏷️

  • Module names MUST stay lowercase snake_case.
  • Pure passthrough or simple parser/writer helpers MUST live directly under utils/env/.
  • Per-variable computation MUST live under handlers/ (see handlers README for the naming convention used there).
  • Test files live in tests/unit/utils/env/ and mirror the module name with a test_ prefix.

Import Rules 🔗

  • parser.py, runtime.py, and writer.py MUST NOT import from builder.py or handlers/.
  • builder.py MUST NOT import individual handler modules; it MUST go through the ORDERED_HANDLERS list exposed by handlers/__init__.py.
  • Handler modules MUST NOT import each other (see handlers README).