35 lines
2.0 KiB
JavaScript
35 lines
2.0 KiB
JavaScript
import fs from 'node:fs'
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import path from 'node:path'
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import { execFileSync } from 'node:child_process'
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const root = process.cwd()
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const files = [...new Set(execFileSync('git', ['ls-files', '--cached', '--others', '--exclude-standard', '-z'], { encoding: 'utf8' }).split('\0'))].filter(file => file.endsWith('.md'))
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const stripCode = text => text.replace(/^```[^\n]*\n[\s\S]*?^```[^\n]*$/gm, '')
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const slug = text => text.toLowerCase().replace(/`/g, '').replace(/[^\p{Letter}\p{Number}\p{Mark}_\- ]/gu, '').replace(/ /g, '-')
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const anchors = file => {
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const source = stripCode(fs.readFileSync(file, 'utf8'))
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const used = new Map(), result = new Set()
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for (const [, heading] of source.matchAll(/^#{1,6}\s+(.+)$/gm)) {
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const name = slug(heading.trim()), count = used.get(name) ?? 0
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result.add(count ? `${name}-${count}` : name); used.set(name, count + 1)
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}
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for (const [, name] of source.matchAll(/\b(?:id|name)=["']([^"']+)["']/g)) result.add(name)
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return result
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}
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const problems = []; let internalLinks = 0
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for (const file of files) for (const [, raw] of stripCode(fs.readFileSync(file, 'utf8')).matchAll(/!?\[[^\]\n]*\]\(([^)\n]+)\)/g)) {
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const href = raw.trim().replace(/^<|>$/g, '')
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if (/^(?:[a-z][a-z\d+.-]*:|\/\/)/i.test(href)) continue
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internalLinks++
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try {
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const [target, fragment] = href.split('#')
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const resolved = target ? path.resolve(path.dirname(file), decodeURIComponent(target)) : path.resolve(file)
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const relative = path.relative(root, resolved).replaceAll('\\', '/')
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let reason = relative.startsWith('_local/') || relative === '_local' ? 'local evidence is excluded from Git Clone' : !fs.existsSync(resolved) ? 'missing path' : null
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if (!reason && fragment && resolved.endsWith('.md') && !anchors(resolved).has(decodeURIComponent(fragment))) reason = 'missing heading'
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if (reason) problems.push({ file, href, reason })
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} catch (error) { problems.push({ file, href, reason: error.message }) }
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}
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console.log(JSON.stringify({ files: files.length, internalLinks, problems }, null, 2))
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if (problems.length) process.exitCode = 1
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