GiteaMailTemplates/AGENTS.md

AGENTS.md — Gitea Mail Templates

Project Overview

A curated collection of email template themes (10 visual styles) for self-hosted Gitea instances. Each theme contains 11 Go html/template files covering all Gitea notification email types.

Repository Layout

themes/             # Template themes (10 styles, 11 .tmpl each = 110 source files)
  aurora/           #   Ethereal / Dreamlike
  bloom/            #   Creative / Startup (glassmorphism)
  ember/            #   Community / Open Source
  heritage/         #   Education / Research
  horizon/          #   Enterprise / Corporate
  ink/              #   Editorial / Publishing
  mono/             #   Minimal / Swiss design
  neon/             #   Cyberpunk / Gaming
  terminal/         #   Developers / Tech
  terra/            #   Nature / Sustainability
tools/              # Go CLI tooling (modular, zero dependencies)
  tools.go          #   Main entry point
  cli/              #   CLI subcommands: list, create, delete, preview
  config/           #   Config types and templates_config.json loading
  data/             #   templates_config.json — single source of truth for template metadata
  preview/          #   Template rendering engine (funcs, locale, engine)
  go.mod            #   Go module (stdlib only, zero dependencies)
preview/            # Browser-based live preview
  index.html        # SPA with style/template/client/viewport switching
  rendered.js       # Pre-rendered HTML (generated, committed for clone-and-preview)
docs/               # Bilingual documentation (English + Simplified Chinese only)

Working With Templates

Template Files

• All .tmpl files use Go html/template syntax
• Must use only Gitea's built-in template functions: AppUrl, DotEscape, QueryEscape, ShortSha, HTMLFormat, PathEscapeSegments, FileSize
• Must use only official Gitea translation keys (mail.* namespace)
• Never reference .DisplayName in templates where the data context lacks it (collaborator, transfer, release, workflow_run, assigned, default)
• Each style must have all 11 template types

Adding a New Theme

1. Scaffold the new theme: cd tools && go run . create <name> — creates the full directory structure with placeholder .tmpl files for all 11 email types
2. Write all 11 .tmpl files with unique visual design
3. Run cd tools && go run . preview all to regenerate preview data
4. Update README.md style gallery table

Preview System

• preview/index.html loads preview/rendered.js (pre-rendered by Go) and displays in iframes
• Supports theme/template switching, view mode (Modern/Source), and viewport toggle (Desktop 1386x780 / Mobile 390x780)
• Keyboard navigation: ←→ cycles focus between Theme/Template/View selects, ↑↓ selects within the focused dropdown, d/m toggles viewport
• REGISTRY and PARAMS are auto-generated from templates_config.json — no manual syncing needed
• Static preview (open index.html directly) — works via file:// protocol with Modern and Source views
• Dev server (go run . dev) — pure Go HTTP server with SSE live reload; watches themes/ for .tmpl changes, re-renders in-process, and pushes reload events to the browser

Build Tool

• tools/tools.go is the main entry point for the modular CLI
• Subcommands: list, create, delete, preview, dev
• Template metadata lives in tools/data/templates_config.json — the single source of truth
• tools/config/ handles config loading and data flattening
• tools/preview/ implements the rendering engine (template funcs, locale, engine, markSafeHTML)
• tools/cli/ implements CLI subcommands using github.com/urfave/cli/v2
• tools/preview/server.go pure Go dev server with SSE live reload and in-process template re-rendering
• Uses Go's native html/template package for template rendering

Versioning

• Release versions mirror the Gitea version they support: Gitea X.Y.Z → template release X.Y.Z (git tag vX.Y.Z)
• The current release is 1.27.1 (tracks Gitea 1.27.1); the quick-reference table in COMPATIBILITY.md lists it first — the tracker workflow updates that row by position
• When a new Gitea version is verified compatible: bump the Template Release column in COMPATIBILITY.md, update the README release line and badge, then tag vX.Y.Z (the release workflow packages automatically on tag push)
• Keep the TRACKER: markers in COMPATIBILITY.md / README.md adjacent to their rows so the automated workflow keeps parsing them

Commit Conventions

• style(name): — template changes for a specific theme
• preview: — preview tooling changes
• tools: — Go CLI/build tooling changes
• docs: — documentation and translations
• fix: — bug fixes
• project: — README, LICENSE, AGENTS.md, meta
• refactor: — code restructuring (e.g. modularization)
• chore: — maintenance (config updates, build scripts)

Constraints

• No JavaScript framework dependencies — preview is vanilla JS
• No external Go dependencies — build uses stdlib only
• Templates must remain compatible with Gitea's html/template execution environment
• Preview works with file:// protocol (no server needed)