History

mwiegand 3facc323b6 refactor(files): extract _load_file_for_editing helper Step 11/12 of docs/superpowers/plans/2026-05-17-files-overlay-rewrite.md. overlay_file_content and overlay_file_edit_page used to repeat the same prelude: load the files-overlay, resolve sub_path safely, confirm it's a regular file, attempt a UTF-8 read with the is_editable sniff + UnicodeDecodeError-on-tail fallback. The bodies have diverged in two places (the binary branch differs — content endpoint returns 415, edit page renders the binary template) but the prelude is identical. Extract _load_file_for_editing(overlay_id, sub_path, user). Returns either a Flask Response (400/404/403/500) or a 5-tuple (overlay, target, content_or_None, is_binary, byte_count). Both routes call it and translate the tuple into their output shape: * overlay_file_content: 415 when is_binary, else jsonify text * overlay_file_edit_page: render binary template when is_binary, else render text template The previous _render_binary_editor helper folds back into the route since it was only called from there and benefits from inlining now that the prelude is shared. is_binary in the tuple is True both when is_editable() said no up front (8-KiB sniff) AND when the tail-of-file read raised UnicodeDecodeError — collapsing what was a duplicated try/except branch in each route. No behavior change. pytest still 580 passed, 1 skipped, 3 deselected. Step 12 (next) audits /files/content callers and likely deletes the endpoint since Phase B removed its only caller (legacy openEditorForFile via files-overlay.js); the shared helper would then collapse to single-caller status but remains useful for grouping the prelude into a named concept. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>		2026-05-17 16:24:32 +02:00
..
alembic	feat(l4d2-web): add command_history table for RCON console transcript	2026-05-14 21:26:56 +02:00
l4d2web	refactor(files): extract _load_file_for_editing helper	2026-05-17 16:24:32 +02:00
scripts	fix(editor-v2): fix cm6 to rows-derived height, eliminate layout shift	2026-05-17 10:27:28 +02:00
tests	feat(files): delete legacy editor dialog + gut editor.js legacy paths	2026-05-17 16:20:27 +02:00
alembic.ini	chore(l4d2): flatten component layout	2026-05-05 23:47:06 +02:00
pyproject.toml	refactor(repo): uv workspace + hatchling + layout restructure	2026-05-15 22:04:29 +02:00
README.md	refactor(repo): uv workspace + hatchling + layout restructure	2026-05-15 22:04:29 +02:00

README.md

l4d2-web-app

Flask web app for managing L4D2 servers through user-private blueprints.

Key v1 behaviors

Local username/password login; no public signup
Admin-managed overlay catalog
Private blueprints per user
Server creation from blueprints (live-linked; no per-server blueprint overrides)
Async job model with persisted command logs in job_logs
Desired vs actual state model
Live logs for jobs and servers via SSE endpoints
Host operations go through l4d2ctl via a local host command runner, not direct l4d2host imports

Frontend constraints

Server-rendered templates (Jinja)
Vendored HTMX (static/vendor/htmx.min.js)
Custom CSS only
Tokenized, consistent link and accent colors

Development

From the workspace root (../):

uv sync          # creates .venv, installs l4d2host + l4d2web editable, plus dev deps
uv run pytest l4d2web/tests -q

Configuration

The web app reads these settings from the environment:

DATABASE_URL: SQLAlchemy database URL, for example sqlite:////var/lib/left4me/left4me.db.
SECRET_KEY: Flask secret key used for sessions and CSRF-sensitive state.
JOB_WORKER_THREADS: number of background job worker threads.

In the systemd deployment, environment is loaded from /etc/left4me/host.env and /etc/left4me/web.env.

Admin Bootstrap

Create the first admin account with the Flask CLI. Provide the password through LEFT4ME_ADMIN_PASSWORD:

LEFT4ME_ADMIN_PASSWORD='change-me' flask create-user <username> --admin