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.
| Agents as a team: lifecycle, merge queue, billing and a new shell | 1 | /** |
| 2 | * g1t's additions to GitHub flavoured markdown. They run on the HTML tree | |
| 3 | * after it has been sanitized, so what they add is trusted and what the | |
| 4 | * author wrote never is. | |
| 5 | */ | |
| 6 | ||
| 7 | type Text = { type: "text"; value: string }; | |
| 8 | type Element = { | |
| 9 | type: "element"; | |
| 10 | tagName: string; | |
| 11 | properties: Record<string, unknown>; | |
| 12 | children: Node[]; | |
| 13 | }; | |
| 14 | /** A node of the HTML tree, loosely: only what these plugins read. */ | |
| 15 | type Node = { type: string; value?: string; tagName?: string; properties?: Record<string, unknown>; children?: Node[] }; | |
| 16 | ||
| 17 | /** The repository a document belongs to, so `#12` can name its issues. */ | |
| 18 | export type MarkdownRepo = { namespace: string; name: string }; | |
| 19 | ||
| 20 | /** The repository a site path like `/acme/web` names. */ | |
| 21 | export function repoAt(base?: string): MarkdownRepo | undefined { | |
| 22 | const [namespace, name] = (base ?? "").split("/").filter(Boolean); | |
| 23 | return namespace && name ? { namespace, name } : undefined; | |
| 24 | } | |
| 25 | ||
| 26 | export const ALERTS = ["note", "tip", "important", "warning", "caution"] as const; | |
| 27 | export type AlertKind = (typeof ALERTS)[number]; | |
| 28 | ||
| 29 | const ALERT_MARKER = /^\s*\[!(NOTE|TIP|IMPORTANT|WARNING|CAUTION)\]\s*\n?/i; | |
| 30 | ||
| 31 | function isElement(node: Node, tag?: string): node is Element { | |
| 32 | return node.type === "element" && (tag == null || (node as Element).tagName === tag); | |
| 33 | } | |
| 34 | ||
| 35 | /** | |
| 36 | * GitHub's alerts: a quote that starts with `[!NOTE]`, `[!TIP]`, | |
| 37 | * `[!IMPORTANT]`, `[!WARNING]` or `[!CAUTION]` becomes a callout. | |
| 38 | */ | |
| 39 | export function rehypeAlerts() { | |
| 40 | return (tree: Node) => { | |
| 41 | const walk = (node: Node) => { | |
| 42 | for (const child of node.children ?? []) { | |
| 43 | if (isElement(child, "blockquote")) { | |
| 44 | const first = child.children.find((c): c is Element => isElement(c, "p")); | |
| 45 | const text = first?.children[0]; | |
| 46 | const match = text?.type === "text" ? ALERT_MARKER.exec((text as Text).value) : null; | |
| 47 | if (first && text && match) { | |
| 48 | (text as Text).value = (text as Text).value.slice(match[0].length); | |
| 49 | // A marker on a line of its own leaves an empty paragraph behind. | |
| 50 | if (first.children.length === 1 && !(text as Text).value.trim()) { | |
| 51 | child.children = child.children.filter((c) => c !== first); | |
| 52 | } | |
| 53 | child.properties = { ...child.properties, dataAlert: match[1]!.toLowerCase() }; | |
| 54 | } | |
| 55 | } | |
| 56 | walk(child); | |
| 57 | } | |
| 58 | }; | |
| 59 | walk(tree); | |
| 60 | }; | |
| 61 | } | |
| 62 | ||
| Merge branch 'worktree-agent-a8385d293d42c913a' | 63 | /** |
| 64 | * Where `@g1t` leads: g1t's own agent, which has no profile. Never `/g1t`, | |
| 65 | * which staff made an alias of Flagon, Inc.'s workspace: mentioning g1t | |
| 66 | * always means the agent. | |
| 67 | */ | |
| 68 | export const G1T_MENTION_HREF = "https://docs.g1t.sh/guides/working-with-g1t/"; | |
| 69 | ||
| Teams and CODEOWNERS, labels and milestones, dependency updates, the security suite, and a clearer top bar | 70 | /** `owner/repo#12`, `#12`, `@workspace/team`, `@name` and commit hashes, in one pass. */ |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 71 | const REFERENCE = |
| Teams and CODEOWNERS, labels and milestones, dependency updates, the security suite, and a clearer top bar | 72 | /(?<![\w/@#])(?:([a-z0-9][a-z0-9-]*\/[a-z0-9._-]+)#(\d+)|#(\d+)|@([a-z0-9](?:[a-z0-9]|-(?=[a-z0-9])){0,38})\/([a-z0-9](?:[a-z0-9]|-(?=[a-z0-9])){0,59})|@([a-z0-9](?:[a-z0-9]|-(?=[a-z0-9])){0,38})|([0-9a-f]{7,40}))(?![\w-])/gi; |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 73 | |
| 74 | function link(href: string, text: string, kind: string): Element { | |
| 75 | return { | |
| 76 | type: "element", | |
| 77 | tagName: "a", | |
| 78 | properties: { href, dataRef: kind }, | |
| 79 | children: [{ type: "text", value: text }], | |
| 80 | }; | |
| 81 | } | |
| 82 | ||
| 83 | /** | |
| 84 | * Links what a forge's text refers to: `#12` to an issue or pull request | |
| 85 | * in this repository (the issue page sends a pull request's number on to | |
| Merge branch 'worktree-agent-a8385d293d42c913a' | 86 | * it), `owner/repo#12` to one elsewhere, `@name` to a person or workspace |
| 87 | * (`@g1t` to how g1t's agent works), and a commit hash to its commit. | |
| 88 | * Nothing inside code or a link changes. | |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 89 | */ |
| 90 | export function rehypeReferences(options: { repo?: MarkdownRepo }) { | |
| 91 | const { repo } = options; | |
| 92 | return (tree: Node) => { | |
| 93 | const walk = (node: Node) => { | |
| 94 | const children = node.children; | |
| 95 | if (!children) return; | |
| 96 | for (let index = 0; index < children.length; index++) { | |
| 97 | const child = children[index]!; | |
| 98 | if (isElement(child)) { | |
| 99 | if (child.tagName === "a" || child.tagName === "code" || child.tagName === "pre") continue; | |
| 100 | walk(child); | |
| 101 | continue; | |
| 102 | } | |
| 103 | if (child.type !== "text") continue; | |
| 104 | const value = (child as Text).value; | |
| 105 | const parts: Node[] = []; | |
| 106 | let last = 0; | |
| 107 | for (const match of value.matchAll(REFERENCE)) { | |
| Teams and CODEOWNERS, labels and milestones, dependency updates, the security suite, and a clearer top bar | 108 | const [whole, other, otherNumber, number, workspace, team, name, hash] = match; |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 109 | let replacement: Element | null = null; |
| 110 | if (other && otherNumber) { | |
| 111 | replacement = link(`/${other}/issues/${otherNumber}`, whole, "issue"); | |
| 112 | } else if (number && repo) { | |
| 113 | replacement = link(`/${repo.namespace}/${repo.name}/issues/${number}`, whole, "issue"); | |
| Teams and CODEOWNERS, labels and milestones, dependency updates, the security suite, and a clearer top bar | 114 | } else if (workspace && team) { |
| 115 | replacement = link(`/${workspace.toLowerCase()}/-/teams/${team.toLowerCase()}`, whole, "team"); | |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 116 | } else if (name) { |
| Merge branch 'worktree-agent-a8385d293d42c913a' | 117 | const href = name.toLowerCase() === "g1t" ? G1T_MENTION_HREF : `/${name.toLowerCase()}`; |
| 118 | replacement = link(href, whole, "mention"); | |
| Agents as a team: lifecycle, merge queue, billing and a new shell | 119 | } else if (hash && repo && /\d/.test(hash) && /[a-f]/i.test(hash)) { |
| 120 | replacement = link(`/${repo.namespace}/${repo.name}/commit/${hash}`, hash.slice(0, 7), "commit"); | |
| 121 | } | |
| 122 | if (!replacement) continue; | |
| 123 | if (match.index! > last) parts.push({ type: "text", value: value.slice(last, match.index) }); | |
| 124 | parts.push(replacement); | |
| 125 | last = match.index! + whole.length; | |
| 126 | } | |
| 127 | if (parts.length === 0) continue; | |
| 128 | if (last < value.length) parts.push({ type: "text", value: value.slice(last) }); | |
| 129 | children.splice(index, 1, ...parts); | |
| 130 | index += parts.length - 1; | |
| 131 | } | |
| 132 | }; | |
| 133 | walk(tree); | |
| 134 | }; | |
| 135 | } |
This file's history is long; its oldest lines are credited to the oldest commit read.