Bridge greeting

Bridge Greeting

A login-shell greeting that is instance-aware: the org folder you open the terminal in resolves to a Bridge instance, and the greeting then shows that instance's identity — logo, colours, calendar tags, task board, and repos.

Home / unknown dirs → the full system dashboard (fastfetch cascade + global board). Inside an org tree → a focused panel for the resolved instance.

The model — branding belongs to the Bridge, not the script

The greeting reads its visual identity from the resolved instance's theme (themes/<theme>.yaml → branding: block), so a logo "comes from" its Bridge instance the same way identity/agent/ and vocabulary do. Three layers:

Layer	Owns	Tier
Engine (scripts/render-motd.sh)	discovery, rendering, board parsing — no instance literals	CORE → open-bridge
Theme branding (themes/<theme>.yaml branding:)	logo path, logo_color_1/2, calendar_tags per instance	per-instance
Local override (~/.config/fastfetch/bridge-motd.local.sh)	per-org fallbacks for instances whose theme has no branding: yet; the org→instance machine map	USER (machine-local, never committed)

Discovery scans ~/Developer/*/*/bridge-config.yaml to build the org-folder → instance map automatically — no hardcoded instance names in the engine.

Purpose tagline — the instance's north-star under the logo

When the resolved instance's bridge-config.yaml has a non-empty purpose.statement, render it as the subtitle / tagline directly under the logo, alongside the theme-derived identity the greeting already shows — so the terminal opens reading as what this Bridge is for, not a bare wordmark. Empty purpose.statement → no tagline line (today's behaviour). This is display only; the purpose never changes what the greeting can show.

gen-logo.py — make an instance its logo

uv run --with pyfiglet python scripts/gen-logo.py --top ACME --bottom CORP > assets/logos/acme.txt
uv run --with pyfiglet python scripts/gen-logo.py --top ACME --umlaut 1   > assets/logos/acme.txt

--umlaut N re-adds a diaeresis over the N-th letter of --top (figlet drops non-ASCII glyphs, so an umlaut would otherwise be lost). Output carries fastfetch $1/$2 colour placeholders; the actual colours are applied at render time from the theme's logo_color_1/2.

--pipe false is mandatory when fastfetch output is captured — a plain --pipe strips every SGR code, leaving the logo uncoloured.

Setup — advise, don't assume

Branding is taste. When setting up (or reconfiguring) an instance's greeting — during onboarding or on /bridge-greeting — consult the user, propose, let them decide (Bridge house style: advise, don't act). Ask, per instance:

• Wordmark + subtitle — top word, optional second line (e.g. a unit/role).
• Colour mode — one of:
  • monochrome — no colour, renders in the terminal's own foreground (set logo_color_1/2: none). For users who want a plain, uncoloured logo.
  • single — one uniform colour, no two-tone alternation (logo_color_1 == logo_color_2).
  • two-tone — distinct logo_color_1/logo_color_2 (gradient feel).
• Calendar tags — which calendars surface for this instance.

Write the chosen values into that instance's theme branding: block (or the machine-local override). Never hardcode a palette — default to asking.

Deploy (thin-shim pattern)

scripts/render-motd.sh is the single source of truth. .zshrc calls a one-line shim at ~/.config/fastfetch/bridge-motd.sh that execs the repo engine — so it auto-follows git pull, no copy to re-deploy:

ENGINE="$HOME/Developer/<org>/<your-bridge>/skills/bridge-greeting/scripts/render-motd.sh"
[[ -r "$ENGINE" ]] && exec bash "$ENGINE" "$@"   # silent skip if repo absent → login never fails

Per-machine data stays out of the repo: logo files in ~/.config/fastfetch/logos/, per-org overrides in ~/.config/fastfetch/bridge-motd.local.sh (USER, never committed).

Two renderers, one concept (macOS + Windows)

The greeting is platform- and provider-pluggable. The same three-layer model (generic engine · instance config · branding asset) has two engines:

	macOS arm	Windows arm
Engine	scripts/render-motd.sh (bash + fastfetch)	scripts/render-greeting.ps1 (PowerShell + ANSI)
Data source	GitHub Projects V2 (gh)	Azure DevOps — WIQL / pipelines / commits (az)
Instance config	bridge-motd.local.sh (BRIDGE_MOTD_*)	$BridgeGreetingConfig hashtable
Branding	theme branding: block	same assets/logos/*.txt + colour
Deploy	.zshrc shim → repo engine	$PROFILE shim → dot-source engine + config

render-greeting.ps1 is generic — no instance literals. A profile dot-sources it plus an instance config, then calls Show-BridgeGreeting -Config $cfg. The config is a hashtable: Label, Logo (a assets/logos/*.txt reused as-is — the PS renderer decodes the same $1/$2 + \u{} format), Color1/Color2, Provider, an Ado block (Org, Project, RepoId, ResourceId, Branch), and an ordered Sections array (Kind ∈ workitems/pipelines/commits, with per-section Wiql, Title, Empty). No config → it greets with just the header. Results cache to JSON (default 1 h TTL).

Provider = 'azure-devops' is implemented; github is a documented extension point (add a Get-GhSection dispatch — the rest of the engine is provider-agnostic).

Windows deploy mirrors the thin-shim idea but dot-sources by $PSScriptRoot (a dev-box typically has no Bridge clone, so the engine + config + profile ship as siblings in the PowerShell profile folder, e.g. a cloud-synced one):

# Microsoft.PowerShell_profile.ps1 (thin shim)
. "$PSScriptRoot\render-greeting.ps1"
. "$PSScriptRoot\bridge-greeting.config.ps1"   # defines $BridgeGreetingConfig
Show-BridgeGreeting -Config $BridgeGreetingConfig

The instance config + its logo + the deployed profile are USER scope and live in that instance's own Bridge repo, never here — exactly like the macOS local override. The engine is the only CORE/promotable piece.

Branding everywhere

branding.logo_* is the terminal rendering of one brand identity that also feeds the web UIs (bridge-deck, the :8790 ops dashboard, the :8793 control center, bridge-explorer). The shared SoT for web surfaces is DESIGN.md (palette + wordmark tokens). See references/architecture.md.

Layering (core / org overlay / instance)

• open-bridge: engine + gen-logo.py + a generic OPEN BRIDGE logo + neutral palette. Discovery, no literals.
• your org overlay (<your-org>/<your-bridge>): a sample logo + palette as the default branding:.
• per-instance (USER): each instance's own logo, org→instance map, calendar tags — local, never promoted.