| 1 | # frozen_string_literal: true |
| 2 | |
| 3 | # On-page SEO helpers. The layout renders `shared/_seo`, which reads these to |
| 4 | # emit the title, description, canonical, Open Graph, Twitter Card, and JSON-LD |
| 5 | # tags. Pages override the defaults with `content_for`: |
| 6 | # |
| 7 | # <% content_for :title, "Models" %> |
| 8 | # <% content_for :description, "Browse open-weights models on siGit." %> |
| 9 | # <% content_for :og_image, image_or_absolute_url %> # optional |
| 10 | # <% content_for :robots, "noindex, follow" %> # optional |
| 11 | # |
| 12 | # Everything degrades to a sensible sitewide default, so a page that sets |
| 13 | # nothing still gets valid, non-empty tags. |
| 14 | module SeoHelper |
| 15 | SITE_NAME = "siGit" |
| 16 | TITLE_SUFFIX = "siGit Code & Deploy" |
| 17 | |
| 18 | DEFAULT_DESCRIPTION = |
| 19 | "siGit is Git hosting for the AI era. Version your repositories, publish " \ |
| 20 | "open-weights models with full model cards and LFS-backed files, and hand " \ |
| 21 | "the keys to your AI coding agent over the Agent Client Protocol." |
| 22 | |
| 23 | # Sitewide default Open Graph / Twitter image: the generic 1200×630 card |
| 24 | # rendered by OgImagesController#default (falls back to a static icon if image |
| 25 | # rasterization is unavailable). Per-page repo cards override this. |
| 26 | DEFAULT_OG_IMAGE_PATH = "/og.png" |
| 27 | |
| 28 | # All generated cards are 1200×630, the summary_large_image sweet spot. |
| 29 | OG_IMAGE_WIDTH = 1200 |
| 30 | OG_IMAGE_HEIGHT = 630 |
| 31 | |
| 32 | # "<page> · siGit Code & Deploy", or just the suffix on the bare root. |
| 33 | def page_full_title |
| 34 | page = content_for(:title) |
| 35 | page.present? ? "#{page} · #{TITLE_SUFFIX}" : TITLE_SUFFIX |
| 36 | end |
| 37 | |
| 38 | def meta_description |
| 39 | strip_tags(content_for(:description).presence || DEFAULT_DESCRIPTION).squish |
| 40 | end |
| 41 | |
| 42 | # Canonical URL without query string or fragment, so tracking params and |
| 43 | # pagination don't fork duplicate URLs in the index. |
| 44 | def canonical_url |
| 45 | "#{request.base_url}#{request.path}" |
| 46 | end |
| 47 | |
| 48 | def og_image_url |
| 49 | custom = content_for(:og_image) |
| 50 | return custom if custom.present? && custom.start_with?("http") |
| 51 | |
| 52 | "#{request.base_url}#{custom.presence || DEFAULT_OG_IMAGE_PATH}" |
| 53 | end |
| 54 | |
| 55 | # Controllers flag auth-gated / transactional pages with `noindex!`; those |
| 56 | # always win so private surfaces never enter a search index even if a stray |
| 57 | # link points at them. Otherwise honor a per-view override, then the default. |
| 58 | def meta_robots |
| 59 | return "noindex, nofollow" if @noindex |
| 60 | content_for(:robots).presence || "index, follow" |
| 61 | end |
| 62 | |
| 63 | def og_type |
| 64 | content_for(:og_type).presence || "website" |
| 65 | end |
| 66 | |
| 67 | # Path to a repository's generated Open Graph card. Used both as the page's |
| 68 | # og:image override and inside its SoftwareSourceCode JSON-LD. |
| 69 | def repository_og_image_path(repository) |
| 70 | og_image_path(repository.user.username, repository.name) |
| 71 | end |
| 72 | |
| 73 | # SoftwareSourceCode structured data for a public repository page. Rendered |
| 74 | # into <script type="application/ld+json"> via content_for(:structured_data). |
| 75 | def repository_structured_data(repository) |
| 76 | owner = repository.user |
| 77 | url = repository_url(owner.username, repository.name) |
| 78 | data = { |
| 79 | "@context" => "https://schema.org", |
| 80 | "@type" => "SoftwareSourceCode", |
| 81 | "name" => repository.name, |
| 82 | "description" => meta_description, |
| 83 | "url" => url, |
| 84 | "codeRepository" => url, |
| 85 | "dateCreated" => repository.created_at.utc.iso8601, |
| 86 | "dateModified" => repository.updated_at.utc.iso8601, |
| 87 | "image" => "#{request.base_url}#{repository_og_image_path(repository)}", |
| 88 | "author" => { |
| 89 | "@type" => "Person", |
| 90 | "name" => owner.username, |
| 91 | "url" => user_profile_url(owner.username) |
| 92 | } |
| 93 | } |
| 94 | if (lang = repository.primary_language) |
| 95 | data["programmingLanguage"] = lang.first |
| 96 | end |
| 97 | tag.script(data.to_json.html_safe, type: "application/ld+json") |
| 98 | end |
| 99 | |
| 100 | # Organization + WebSite, emitted on every page. Establishes the site entity |
| 101 | # for knowledge-panel / sitelinks eligibility. |
| 102 | def organization_json_ld |
| 103 | { |
| 104 | "@context" => "https://schema.org", |
| 105 | "@graph" => [ |
| 106 | { |
| 107 | "@type" => "Organization", |
| 108 | "@id" => "#{request.base_url}/#organization", |
| 109 | "name" => SITE_NAME, |
| 110 | "url" => request.base_url, |
| 111 | "logo" => "#{request.base_url}#{DEFAULT_OG_IMAGE_PATH}", |
| 112 | "description" => DEFAULT_DESCRIPTION |
| 113 | }, |
| 114 | { |
| 115 | "@type" => "WebSite", |
| 116 | "@id" => "#{request.base_url}/#website", |
| 117 | "name" => SITE_NAME, |
| 118 | "url" => request.base_url, |
| 119 | "publisher" => { "@id" => "#{request.base_url}/#organization" } |
| 120 | } |
| 121 | ] |
| 122 | } |
| 123 | end |
| 124 | end |