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mwiegand 54842f71c6 fix(editor-v2): fix cm6 to rows-derived height, eliminate layout shift CLS verified zero (0.00000) on /blueprints/1 and /overlays/1 via PerformanceObserver({type: 'layout-shift', buffered: true}) on a real browser session — previously CLS=0.00859 from a 253 px shift when cm6 mounted into a display:none slot. Mechanism: - editor-entry.js: mount() accepts `rows`. When provided, prepends an EditorView.theme that pins .cm-editor { height: calc(rows * 1.84rem + 1.125rem) } and sets .cm-scroller overflow:auto. cm6 renders at a fixed, predictable height; long content scrolls internally (same UX the raw <textarea rows="N"> used to give). - editor.js: reads textarea.rows attribute and passes it to mount(). - editor.css: new .editor-mount wrapper uses the same calc on min-height keyed off an inline --editor-rows CSS custom property, so the slot is pre-reserved BEFORE cm6 mounts. Wrapper and cm6 match exactly (browser-measured 254 / 254 px for rows=8 and 607 / 607 px for rows=20). - Templates: each editor textarea wrapped in <div class="editor-mount" style="--editor-rows: N">. Single source of truth on N (only the rows attribute + the inline custom prop vary per call site). Per-row metric 1.84 rem derived empirically: 253 px for rows=8 minus 1.125 rem chrome = 235 px content, ÷ 8 ≈ 29.4 px = 1.84 rem. Fast suite + e2e suite still green (3 + 2 pass, 0 fail). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>		2026-05-17 10:27:28 +02:00
deploy	deploy/journalctl: anchor server log to current unit start	2026-05-15 23:04:53 +02:00
docs	plan(textarea-editor-v2): bite-sized TDD implementation plan	2026-05-17 01:41:26 +02:00
examples/script-overlays	feat(l4d2-web): seed example script overlays from examples/script-overlays/	2026-05-08 18:41:08 +02:00
l4d2host	refactor(repo): uv workspace + hatchling + layout restructure	2026-05-15 22:04:29 +02:00
l4d2web	fix(editor-v2): fix cm6 to rows-derived height, eliminate layout shift	2026-05-17 10:27:28 +02:00
scripts	feat(scripts): add scripts/dev-server.py for local UI smoke	2026-05-17 00:04:11 +02:00
.envrc	chore(envrc): switch direnv from `use uv` to `layout uv`	2026-05-16 13:20:16 +02:00
.gitignore	chore(gitignore): ignore .tmp/ scratch directory	2026-05-16 11:53:14 +02:00
.python-version	refactor(repo): uv workspace + hatchling + layout restructure	2026-05-15 22:04:29 +02:00
AGENTS.md	docs(editor-v2): AGENTS.md editor bundle rebuild section	2026-05-17 02:17:38 +02:00
cvar_list	feat(editor-v2): vocab generator + cvar_list-derived JSON	2026-05-17 01:55:33 +02:00
pyproject.toml	test(e2e): scaffold Playwright + live-server fixture	2026-05-16 21:00:45 +02:00
README.md	refactor(repo): uv workspace + hatchling + layout restructure	2026-05-15 22:04:29 +02:00
uv.lock	test(e2e): scaffold Playwright + live-server fixture	2026-05-16 21:00:45 +02:00

README.md

left4me

left4me is a local L4D2 server management platform with two planned components:

l4d2host + l4d2ctl (host library + CLI)
l4d2-web-app (Flask web app for users, blueprints, servers, jobs, and logs)

Status

Implementation plans remain the source of truth for architecture and task sequencing:

docs/superpowers/plans/2026-04-22-l4d2-host-lib-v1.md
docs/superpowers/plans/2026-04-23-l4d2-web-app-v1.md

Locked v1 Decisions

Naming is strictly l4d2 (not l4d).
Host library and web app are separate components.
Host CLI write commands are fixed to:
- install
- initialize <name> -f <spec.yaml>
- start <name>
- stop <name>
- delete <name>
Host CLI read commands are available for the web/host boundary:
- status <name> --json
- logs <name> --lines <n> --follow/--no-follow
The web app calls host operations through l4d2ctl, not direct l4d2host imports.
Deployment uses /var/lib/left4me for runtime state, /opt/left4me for repository contents and the virtualenv, /etc/left4me for environment files, and global units under /usr/local/lib/systemd/system.
Overlay handling is directory-based; the web app populates each overlay (workshop downloads, managed-global refresh).
No lock manager, no rollback, no preflight checks in host library.
CLI propagates subprocess failures via stderr and return code.
delete on missing instance is no-op success.
Blueprint model (web app):
- user-private in v1
- servers are live-linked to blueprint
- no per-server overrides
- delete blueprint blocked when linked servers exist
- blueprint changes apply on next action
- server can reassign blueprint anytime

Planned Repository Layout

l4d2host/
l4d2web/
deploy/
docs/superpowers/plans/

Deployment

See deploy/README.md for the Linux test deployment contract, including the runtime user, target filesystem layout, systemd units, privileged helpers, sudoers rules, admin bootstrap, and overlay reference rules.

Local development

This repo is a uv workspace (l4d2host + l4d2web as members) with a committed uv.lock and a .python-version pinning Python 3.13 (matching the Debian Trixie production target).

One-time prereq: install uv (macOS: brew install uv; Linux: curl -LsSf https://astral.sh/uv/install.sh | sh — uv is not yet in Debian stable's apt).

direnv allow once per fresh checkout (and after any .envrc change). .envrc uses use uv, which runs uv sync and activates .venv/ on cd.
Without direnv: uv sync at the repo root creates .venv/, installs both workspace members editable, and pulls in dev deps (pytest) from the lockfile.
Tests: uv run pytest (or just pytest once the venv is on PATH).

Tech Stack (planned)

Python 3.13+ (workspace uses uv + hatchling)
Typer, PyYAML, pytest
Flask, SQLAlchemy, Alembic
HTMX (vendored locally), custom CSS, SSE
systemd units, kernel overlayfs (mounted via the left4me-overlay privileged helper), steamcmd

Recommended Implementation Order

Implement l4d2host plan first.
Implement l4d2web plan second.
Keep tests green task-by-task (TDD flow from plans).
Keep commits small and aligned with plan tasks.

Contributing Notes

Follow plan task order unless explicitly re-planned.
Keep contracts above unchanged unless the user asks to change them.
Update plan docs when scope or behavior changes.