100 lines
4.0 KiB
TypeScript
100 lines
4.0 KiB
TypeScript
/**
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* Doc-sync gate: enforce the repo's "Markdown is not hard-wrapped" convention
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* (docs/AGENTS.md § Writing rules) — prose paragraphs are written as
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* one physical line per paragraph and the editor soft-wraps. A hard-wrapped
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* paragraph (a one-word edit reflows and re-diffs the whole block) is a defect
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* this script catches before review.
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*
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* Detection is AST-based: we parse each file with mdast-util-from-markdown (the
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* CommonMark parser behind remark) plus the GFM extension, then flag any
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* `paragraph` node whose source span covers more than one line. The parser owns
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* all the structure that legitimately occupies multiple lines — fenced code
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* (any fence length), tables, list items, blockquotes, HTML blocks, headings,
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* thematic breaks, link-reference definitions — so a hard wrap is simply "a
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* paragraph node that starts and ends on different lines." This is checker, not
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* formatter: it reports and never rewrites, so it introduces zero cosmetic
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* churn (no emphasis-marker or table-delimiter normalization).
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*
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* A wrapped paragraph inside a list item or blockquote is still a `paragraph`
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* node, so those are caught too. Scope mirrors doc-typecheck plus the two
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* AGENTS.md files that doc-sync does NOT otherwise cover (the convention itself
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* lives there): README.md, docs/** /*.md, packages/* /*.md, AGENTS.md,
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* packages/AGENTS.md. The root and packages/ CLAUDE.md are symlinks to the
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* AGENTS.md files, so they are deduped by real path.
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*
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* Run: `tsx scripts/verify-md-wrap.ts`.
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*/
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import { globSync, readFileSync, realpathSync } from 'node:fs'
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import { relative, resolve } from 'node:path'
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import { fromMarkdown } from 'mdast-util-from-markdown'
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import { gfmFromMarkdown } from 'mdast-util-gfm'
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import { gfm } from 'micromark-extension-gfm'
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import type { Nodes } from 'mdast'
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const root = resolve(import.meta.dirname, '..')
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/** Files to check: doc-typecheck's scope plus the AGENTS.md pair. */
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const PATTERNS = ['README.md', 'README.zh.md', 'docs/**/*.md', 'packages/*/*.md', 'packages/*/*/*.md', 'AGENTS.md', 'packages/AGENTS.md']
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/** A located hard-wrap: a prose paragraph spanning more than one source line. */
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interface Violation {
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file: string
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/** 1-based line where the hard-wrapped paragraph starts. */
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line: number
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text: string
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}
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/** Find every hard-wrapped prose paragraph in one Markdown file via its AST. */
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function findViolations(absPath: string): Violation[] {
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const file = relative(root, absPath)
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const source = readFileSync(absPath, 'utf8')
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const tree = fromMarkdown(source, { extensions: [gfm()], mdastExtensions: [gfmFromMarkdown()] })
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const out: Violation[] = []
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const visit = (node: Nodes): void => {
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if (node.type === 'paragraph' && node.position) {
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const { start, end } = node.position
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if (end.line > start.line) {
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const firstLine = source.split('\n')[start.line - 1] ?? ''
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out.push({ file, line: start.line, text: firstLine.trim() })
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}
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// A paragraph's children are inline (text/emphasis/…); no nested
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// paragraphs to find, so don't descend.
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return
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}
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if ('children' in node) {
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for (const child of node.children) visit(child)
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}
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}
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visit(tree)
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return out
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}
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const seen = new Set<string>()
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const all: Violation[] = []
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let checked = 0
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for (const pattern of PATTERNS) {
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for (const match of globSync(pattern, { cwd: root })) {
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const abs = resolve(root, match)
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// CLAUDE.md symlinks resolve onto AGENTS.md; dedupe by real path so a file
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// matched twice (or via symlink) is checked once.
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const real = realpathSync(abs)
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if (seen.has(real)) continue
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seen.add(real)
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checked++
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all.push(...findViolations(abs))
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}
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}
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if (all.length === 0) {
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console.log(`verify-md-wrap: ${checked} file(s) checked, no hard-wrapped prose paragraphs.`)
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process.exit(0)
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}
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console.error('verify-md-wrap: hard-wrapped prose paragraphs found (write one physical line per paragraph):')
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for (const v of all) {
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console.error(` ${v.file}:${v.line} ${v.text.slice(0, 80)}${v.text.length > 80 ? '…' : ''}`)
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}
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process.exit(1)
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