Add Laravel Truss for live schema diagrams.

Install albertoarena/laravel-truss as a local-only tool so /truss and the optional Truss MCP server can inspect structure without exposing row data.
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ben
2026-08-13 11:38:10 +02:00
parent 1877fee258
commit a1bddca2dd
6 changed files with 564 additions and 2 deletions
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<?php
declare(strict_types=1);
// Configuration for albertoarena/laravel-truss.
// This is the single source of truth for Truss's behaviour. Authorization is a
// fixed `viewTruss` gate the host app defines — the ability name is not set here.
return [
/*
|--------------------------------------------------------------------------
| Route prefix
|--------------------------------------------------------------------------
|
| URL prefix under which the index page and the JSON schema endpoint are
| registered, e.g. "truss" GET /truss and GET /truss/api/schema.
|
*/
'route_prefix' => env('TRUSS_ROUTE_PREFIX', 'truss'),
/*
|--------------------------------------------------------------------------
| Enabled
|--------------------------------------------------------------------------
|
| Global on/off switch. Defaults to enabled only in the local environment.
| Authorization is enforced separately by the fixed `viewTruss` gate.
|
*/
'enabled' => env('TRUSS_ENABLED', env('APP_ENV', 'production') === 'local'),
/*
|--------------------------------------------------------------------------
| Middleware
|--------------------------------------------------------------------------
|
| The middleware stack applied to both Truss routes. Its job is to establish
| the auth context (session, cookies, the authenticated user) so the
| `viewTruss` gate can identify who is viewing without it, the gate sees no
| user and denies everyone in non-local environments. The default `web` group
| covers session-based auth; swap it for a custom guard/Sanctum stack if your
| app authenticates differently.
|
| The fixed `viewTruss` authorization check is always appended after this and
| cannot be configured away this list controls the auth *context*, not
| whether authorization runs.
|
*/
'middleware' => ['web'],
/*
|--------------------------------------------------------------------------
| Authorization
|--------------------------------------------------------------------------
|
| Truss is gated by the fixed `viewTruss` gate (the ability name is not
| configurable). In non-local environments the shipped default gate admits
| only the emails listed here the zero-code path for "let these admins in".
| Set them via TRUSS_ALLOWED_EMAILS as a comma-separated list, e.g.
| TRUSS_ALLOWED_EMAILS="ada@example.com,grace@example.com".
|
| The list is ignored in local (the gate is not consulted there) and ignored
| entirely if the host app defines its own `viewTruss` gate (e.g. a role
| check). An empty list fails closed: no one may view in non-local until you
| either add emails here or override the gate.
|
*/
'authorization' => [
'allowed_emails' => array_values(array_filter(array_map(
'trim',
explode(',', (string) env('TRUSS_ALLOWED_EMAILS', '')),
))),
],
/*
|--------------------------------------------------------------------------
| Cache
|--------------------------------------------------------------------------
|
| The schema snapshot is derived, disposable data cached via Laravel's Cache
| facade, keyed per connection. `ttl` is in seconds.
|
*/
'cache' => [
'ttl' => (int) env('TRUSS_CACHE_TTL', 3600),
],
/*
|--------------------------------------------------------------------------
| Connections
|--------------------------------------------------------------------------
|
| Which database connections are visualizable, and any per-connection
| overrides. When left empty, Truss uses the application's default
| connection (config('database.default')).
|
| Example:
| 'mysql' => ['excluded_tables' => ['legacy_import']],
|
*/
'connections' => [
//
],
/*
|--------------------------------------------------------------------------
| Excluded tables
|--------------------------------------------------------------------------
|
| Tables hidden from the diagram by default (framework/infrastructure noise).
| Applied server-side: excluded tables never appear in the API response.
|
*/
'excluded_tables' => [
'migrations',
'password_reset_tokens',
'sessions',
'cache',
'cache_locks',
'jobs',
'job_batches',
'failed_jobs',
],
/*
|--------------------------------------------------------------------------
| Diagram
|--------------------------------------------------------------------------
|
| Styling options passed through to the Mermaid theme, plus the default
| column-type label mode:
| 'native' the full DB type (varchar(255), bigint unsigned) [default]
| 'laravel' a best-effort Laravel-style short label (string, integer)
| The mode is user-toggleable in the UI; this is only the default.
|
*/
'diagram' => [
'type_labels' => env('TRUSS_TYPE_LABELS', 'native'),
// Where the browser loads Mermaid from. Null (the default) self-hosts it
// from the package's own asset route — no CDN, so a strict CSP needs only
// `script-src 'self'`. Set a URL (e.g. a CDN or your own copy) to opt out
// of self-hosting: TRUSS_MERMAID_URL=https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.min.js
'mermaid_url' => env('TRUSS_MERMAID_URL'),
// Lower bound for the automatic fit-to-screen: a large schema is never
// auto-zoomed below this (it stays legible and you pan). The "Fit" button
// ignores this and frames the whole diagram. 1.0 = 100%.
'min_zoom' => (float) env('TRUSS_MIN_ZOOM', 0.7),
],
/*
|--------------------------------------------------------------------------
| Theme
|--------------------------------------------------------------------------
|
| Truss ships a light and dark "blueprint" theme. To match the app Truss is
| embedded in, redefine its colours and fonts here. Everything is optional:
| only the knobs you set are overridden, the rest stay on the default, so a
| handful of values re-skins the whole dashboard (chrome and diagram) in both
| light and dark. Config driven, no build step.
|
| It is delivered as a same-origin stylesheet, so a strict CSP still needs
| only style-src 'self' (no inline styles). Each value is validated before it
| is emitted; an invalid value is ignored and falls back to the default.
|
| Colours accept hex, rgb()/rgba()/hsl()/hsla(), or a CSS colour keyword.
| Fonts are family names only: name a font your app already loads or a system
| font (Truss serves no font files here). Set a knob under both 'light' and
| 'dark' to theme both modes; omit 'dark' to theme light only.
|
| Colour knobs and what each paints:
| accent primary accent: headings, PK badges, entity borders, focus ring
| accent-secondary secondary accent
| background the canvas / page background (and relationship-label backdrop)
| surface panels, table bodies, rows, and inputs
| surface-alt row striping
| text body and diagram text
| muted secondary text and the relationship lines / labels
| border table, panel, and field lines
|
*/
'theme' => [
'fonts' => [
'mono' => env('TRUSS_THEME_FONT_MONO'),
'sans' => env('TRUSS_THEME_FONT_SANS'),
],
'colors' => [
'light' => [
// 'accent' => '#3730a3',
// 'background' => '#ffffff',
],
'dark' => [
// 'accent' => '#a5b4fc',
// 'background' => '#0b1020',
],
],
],
/*
|--------------------------------------------------------------------------
| Focus
|--------------------------------------------------------------------------
|
| Focus mode reduces the diagram to a table and its foreign-key neighbours.
| `default_depth` is how many hops of neighbours are shown by default.
|
*/
'focus' => [
'default_depth' => (int) env('TRUSS_FOCUS_DEPTH', 1),
],
/*
|--------------------------------------------------------------------------
| Large schema
|--------------------------------------------------------------------------
|
| Table count above which the UI shows a "large schema — use focus/filter"
| warning before rendering everything at once.
|
*/
'large_schema' => [
'warn_above' => (int) env('TRUSS_LARGE_SCHEMA_WARN_ABOVE', 60),
],
/*
|--------------------------------------------------------------------------
| Schema diff
|--------------------------------------------------------------------------
|
| "What changed since the last migration". After each migration Truss keeps
| the previous schema snapshot as a baseline and compares it against the
| current one, surfacing added, removed, and changed tables, columns, indexes,
| and foreign keys in the dashboard "Changes" panel and via `truss:diff`.
|
| This is the only feature that writes to the filesystem: the baseline is a
| structure-only JSON file (never row data), stored on disk rather than in the
| cache because it cannot be rebuilt from the live database once a migration
| has run.
|
| `enabled`: master switch. When false, no baseline is captured, nothing is
| written to disk, the "Changes" toggle is hidden, and `truss:diff` reports the
| feature is off. Set it false if you do not want Truss touching your disk.
|
| `disk`: the filesystem disk the baseline is written to, `local` by default.
| The path is always `truss/baselines/{connection}`. This deliberately does not
| follow the application's default disk: the baseline is derived tooling state,
| not application data, so it should not land in a production bucket, cost
| money, or have several instances racing on one object. A failure to read or
| write it is never fatal; the diff is simply unavailable until it recovers.
|
*/
'diff' => [
'enabled' => (bool) env('TRUSS_DIFF_ENABLED', true),
'disk' => env('TRUSS_DIFF_DISK', 'local'),
],
/*
|--------------------------------------------------------------------------
| Doctor
|--------------------------------------------------------------------------
|
| `truss:doctor` reviews the schema for problems visible from structure
| alone (a table with no primary key, an unindexed foreign key, and so on)
| and can fail CI. Structure only: it never reads row data and makes no
| network call.
|
| preset: recommended (high-confidence rules), strict (every rule), none.
| rules: per-rule overrides keyed by code: false disables, true enables
| (even a heuristic one), ['severity' => 'error'] changes severity.
| ignore: per-rule fnmatch patterns (table or table.column) to silence.
| fail_on: the severity at or above which the command exits non-zero.
| exclude: extra tables to skip, on top of truss.excluded_tables.
| dashboard: show the findings in the dashboard "Health" panel. When false,
| the schema endpoint sends no doctor payload and the panel and
| node badges never appear, leaving the CLI/CI doctor untouched.
| flag_tables: always mark tables that have findings on the diagram with a
| small severity count, even when the Health panel is closed. Set
| false to keep the diagram clean and surface findings only when
| the panel is open.
|
*/
'doctor' => [
'preset' => env('TRUSS_DOCTOR_PRESET', 'recommended'),
'rules' => [
// 'TRUSS-INT-002' => true,
// 'TRUSS-IDX-001' => ['severity' => 'error'],
],
'ignore' => [
// 'TRUSS-IDX-001' => ['audit_log.actor_id'],
],
'fail_on' => env('TRUSS_DOCTOR_FAIL_ON', 'error'),
'exclude' => [],
'dashboard' => (bool) env('TRUSS_DOCTOR_DASHBOARD', true),
'flag_tables' => (bool) env('TRUSS_DOCTOR_FLAG_TABLES', true),
],
/*
|--------------------------------------------------------------------------
| Annotations
|--------------------------------------------------------------------------
|
| Business meaning that cannot be introspected: that status = 1 means paid,
| that total_amount is integer cents, that legacy_orders is deprecated. It is
| declared here (and/or read from native schema comments) and rendered into
| the exports so a coding agent has grounding a type alone cannot give.
|
| This is still structure only: native comments are part of the CREATE TABLE
| definition, not row content, the same boundary as column defaults.
|
| source: ordered precedence for resolving an annotation; first match
| wins. 'config' reads the maps below; 'database' reads native
| table/column comments (MySQL and Postgres; SQLite and SQL Server
| have none and are skipped). Drop 'database' to ignore DB comments.
| notes: global notes rendered in a header block where the format has one.
| tables: per-table annotations, keyed by table name.
| columns: per-column annotations, keyed by "table.column".
|
| --no-annotations (and the facade withoutAnnotations()) strip them all.
|
*/
'annotations' => [
'source' => ['config', 'database'],
'notes' => [
// 'All timestamps are UTC.',
// 'Monetary columns are integer cents unless stated.',
],
'tables' => [
// 'orders' => 'One row per order, not per line item.',
],
'columns' => [
// 'orders.status' => '0 draft, 1 paid, 2 refunded',
],
],
/*
|--------------------------------------------------------------------------
| Export
|--------------------------------------------------------------------------
|
| `default_format`: the format truss:export and the facade use when none is
| given. One of dbml, json, csv, markdown, mermaid, or llm.
|
*/
'export' => [
'default_format' => env('TRUSS_EXPORT_FORMAT', 'dbml'),
],
/*
|--------------------------------------------------------------------------
| MCP server
|--------------------------------------------------------------------------
|
| The optional read-only, structure-only MCP server exposes the live schema
| to a coding agent (structure only, never row data). It requires the
| optional first-party `laravel/mcp` package: install it with
| `composer require laravel/mcp`. When that package is absent this switch has
| no effect (the server is only registered when the package is present), so a
| host that does not opt in is unaffected.
|
| `enabled`: master switch for registering the server once laravel/mcp is
| installed. Defaults on, so installing the package is the only opt-in step.
|
*/
'mcp' => [
'enabled' => (bool) env('TRUSS_MCP_ENABLED', true),
],
];