Pick any line to see why it is the way it is: the commit, the pull request and issue it came from, and what the agent was thinking.
| Docs: the inbox, what lands in it and why, its tabs and actions | 1 | /** |
| 2 | * Every page's <title> and the tags a link preview reads: its description, | |
| 3 | * Open Graph and Twitter's card. The image is the page's own card from the | |
| 4 | * og service (services/og), which draws it as an anonymous visitor would | |
| 5 | * see the page, so a private page's card never names anything. A g1t without | |
| 6 | * the og service (`OG_URL` set empty) leaves the image tags out. | |
| 7 | * | |
| 8 | * React Router renders only the deepest route's `meta`, so each route | |
| 9 | * returns `page(args, …)` rather than a bare title. | |
| 10 | */ | |
| 11 | import type { MetaDescriptor } from "react-router"; | |
| 12 | import { ogVersion } from "@g1t/contracts/og"; | |
| 13 | ||
| 14 | import type { Addresses } from "./addresses"; | |
| 15 | ||
| 16 | /** | |
| 17 | * g1t.sh's site and card service, the same as HOSTED_ADDRESSES in | |
| 18 | * ./addresses (kept here so this module has no imports to run in tests). | |
| 19 | * Pages use the addresses in the root loader's data when it has them. | |
| 20 | */ | |
| 21 | export const SITE = "https://g1t.sh"; | |
| 22 | export const OG = "https://og.g1t.sh"; | |
| 23 | ||
| 24 | /** What g1t is, for pages with nothing more particular to say. */ | |
| 25 | export const DESCRIPTION = | |
| The site no longer has g1t's own agents. g1t is where the coding agents you already use do their work, so the Agents mode is gone from the rail, with every page under /<workspace>/-/agents: personas, faces, skills, abilities, routines, computers, sessions and agent spend. Customize (skills, connectors, plugins, marketplaces), the context hub, model providers, the AI Gateway page, the Spend page and pill, Ask g1t, and the repository's Agents, Plans and agent settings pages go too, and their addresses now answer 404. | 26 | "Repositories, pull requests, required checks, a merge queue and deployments, with chat for your team. Connect the coding agents you already use through MCP and the API. Open source, never per seat."; |
| Docs: the inbox, what lands in it and why, its tabs and actions | 27 | |
| 28 | /** As much of `MetaArgs` as the tags need. */ | |
| 29 | export type PageArgs = { | |
| 30 | location: { pathname: string }; | |
| 31 | matches: ReadonlyArray<{ id: string; loaderData?: unknown } | undefined>; | |
| 32 | }; | |
| 33 | ||
| 34 | export type PageMeta = { | |
| 35 | /** The whole <title>, ending in "· g1t". */ | |
| 36 | title: string; | |
| 37 | /** Defaults to the project's or workspace's description, then g1t's. */ | |
| 38 | description?: string | null; | |
| 39 | /** | |
| 40 | * Whatever the page's card shows, so that the card is drawn again when it | |
| 41 | * changes. Defaults to the project's details on project pages. | |
| 42 | */ | |
| 43 | version?: unknown; | |
| 44 | type?: "website" | "article"; | |
| 45 | }; | |
| 46 | ||
| 47 | type ProjectData = { | |
| 48 | repo?: { description?: string | null }; | |
| 49 | project?: { name?: string; description?: string | null; descriptionInherited?: boolean } | null; | |
| 50 | open?: { issues?: number; pulls?: number }; | |
| 51 | }; | |
| 52 | type WorkspaceData = { workspace?: { name?: string; description?: string | null; avatar?: string | null } }; | |
| 53 | ||
| 54 | function loaded<T>(args: PageArgs, id: string): T | undefined { | |
| 55 | return args.matches.find((match) => match?.id === id)?.loaderData as T | undefined; | |
| 56 | } | |
| 57 | ||
| 58 | /** A short, stable fingerprint, for the card's `v`. */ | |
| 59 | export function fingerprint(value: unknown): string { | |
| 60 | const text = JSON.stringify(value) ?? ""; | |
| 61 | // FNV-1a, 32 bits. | |
| 62 | let hash = 0x811c9dc5; | |
| 63 | for (let i = 0; i < text.length; i++) { | |
| 64 | hash ^= text.charCodeAt(i); | |
| 65 | hash = Math.imul(hash, 0x01000193); | |
| 66 | } | |
| 67 | return (hash >>> 0).toString(36); | |
| 68 | } | |
| 69 | ||
| 70 | /** A description fit for a preview: one line, at most 200 characters. */ | |
| 71 | function summary(text: string): string { | |
| 72 | const line = text.replace(/\s+/g, " ").trim(); | |
| 73 | return line.length > 200 ? `${line.slice(0, 199).trimEnd()}…` : line; | |
| 74 | } | |
| 75 | ||
| 76 | /** The opening of some Markdown as plain text, for a description. */ | |
| 77 | export function excerpt(markdown: string | null | undefined, max = 160): string { | |
| 78 | const text = (markdown ?? "") | |
| 79 | .replace(/```[\s\S]*?(```|$)/g, " ") | |
| 80 | .replace(/<[^>]+>/g, " ") | |
| 81 | .replace(/!\[[^\]]*\]\([^)]*\)/g, " ") | |
| 82 | .replace(/\[([^\]]*)\]\([^)]*\)/g, "$1") | |
| 83 | .replace(/^\s{0,3}(#{1,6}|>|[-*+]|\d+\.)\s+/gm, "") | |
| 84 | .replace(/[`*_~|]/g, "") | |
| 85 | .replace(/\s+/g, " ") | |
| 86 | .trim(); | |
| 87 | return text.length > max ? `${text.slice(0, max - 1).trimEnd()}…` : text; | |
| 88 | } | |
| 89 | ||
| 90 | /** | |
| 91 | * The address of a page's card. Its `v` always carries the cards' render | |
| 92 | * version, so a new card design is a new address for og's cache, browsers | |
| 93 | * and every site that has fetched the old card; then, when the page has one, | |
| 94 | * a fingerprint of what the card shows. | |
| 95 | */ | |
| 96 | export function cardUrl(pathname: string, version?: unknown, og: string = OG): string { | |
| 97 | const url = new URL("/image", og); | |
| 98 | url.searchParams.set("path", pathname); | |
| 99 | url.searchParams.set("v", ogVersion(version === undefined ? undefined : fingerprint(version))); | |
| 100 | return url.toString(); | |
| 101 | } | |
| 102 | ||
| 103 | /** A project's own description; null while it follows its repository's. */ | |
| 104 | function ownDescription(project: { description?: string | null; descriptionInherited?: boolean } | null | undefined): string | null { | |
| 105 | return project && !project.descriptionInherited ? (project.description ?? null) : null; | |
| 106 | } | |
| 107 | ||
| 108 | export function page(args: PageArgs, meta: PageMeta): MetaDescriptor[] { | |
| 109 | const project = loaded<ProjectData>(args, "routes/repo/layout"); | |
| 110 | const workspace = loaded<WorkspaceData>(args, "routes/workspace/layout"); | |
| 111 | const description = summary( | |
| 112 | meta.description || | |
| 113 | ownDescription(project?.project) || | |
| 114 | project?.repo?.description || | |
| 115 | workspace?.workspace?.description || | |
| 116 | DESCRIPTION, | |
| 117 | ); | |
| 118 | const version = | |
| 119 | meta.version ?? | |
| 120 | (project | |
| 121 | ? [project.project?.name, ownDescription(project.project) ?? project.repo?.description, project.open] | |
| 122 | : workspace | |
| 123 | ? [ | |
| 124 | workspace.workspace?.name, | |
| 125 | workspace.workspace?.description, | |
| 126 | // Only when there is one, so cards without an icon keep their address. | |
| 127 | ...(workspace.workspace?.avatar ? [workspace.workspace.avatar] : []), | |
| 128 | ] | |
| 129 | : undefined); | |
| 130 | const pathname = args.location.pathname.replace(/\/+$/, "") || "/"; | |
| 131 | // The title a preview shows needs no "· g1t": the site name is beside it. | |
| 132 | const shareTitle = meta.title.replace(/ · g1t$/, ""); | |
| 133 | const addresses = loaded<{ addresses?: Pick<Addresses, "site" | "og"> }>(args, "root")?.addresses; | |
| 134 | const site = addresses?.site ?? SITE; | |
| 135 | const og = addresses ? addresses.og : OG; | |
| 136 | const image = og ? cardUrl(pathname, version, og) : null; | |
| 137 | return [ | |
| 138 | { title: meta.title }, | |
| 139 | { name: "description", content: description }, | |
| 140 | { property: "og:site_name", content: "g1t" }, | |
| 141 | { property: "og:type", content: meta.type ?? "website" }, | |
| 142 | { property: "og:url", content: `${site}${pathname === "/" ? "/" : pathname}` }, | |
| 143 | { property: "og:title", content: shareTitle }, | |
| 144 | { property: "og:description", content: description }, | |
| 145 | ...(image | |
| 146 | ? [ | |
| 147 | { property: "og:image", content: image }, | |
| 148 | { property: "og:image:type", content: "image/png" }, | |
| 149 | { property: "og:image:width", content: "1200" }, | |
| 150 | { property: "og:image:height", content: "630" }, | |
| 151 | { property: "og:image:alt", content: shareTitle }, | |
| 152 | ] | |
| 153 | : []), | |
| 154 | { name: "twitter:card", content: image ? "summary_large_image" : "summary" }, | |
| 155 | { name: "twitter:title", content: shareTitle }, | |
| 156 | { name: "twitter:description", content: description }, | |
| 157 | ...(image | |
| 158 | ? [ | |
| 159 | { name: "twitter:image", content: image }, | |
| 160 | { name: "twitter:image:alt", content: shareTitle }, | |
| 161 | ] | |
| 162 | : []), | |
| 163 | ]; | |
| 164 | } |
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