| 1 | import type { ResolvedFontOptions, SourceSlideInfo } from '@slidev/types' |
| 2 | import type MarkdownExit from 'markdown-exit' |
| 3 | import type { Connect, GeneralImportGlobOptions } from 'vite' |
| 4 | import { createHash } from 'node:crypto' |
| 5 | import { mkdirSync, writeFileSync } from 'node:fs' |
| 6 | import { fileURLToPath } from 'node:url' |
| 7 | import { slash } from '@antfu/utils' |
| 8 | import { createJiti } from 'jiti' |
| 9 | import { dirname, join, relative, win32 } from 'pathe' |
| 10 | import YAML from 'yaml' |
| 11 | import { toAtFS } from './resolver' |
| 12 | import { isAllowedFile } from './vite/importGuard' |
| 13 | |
| 14 | /** |
| 15 | * Whether `filePath` resolves inside any of `roots` (no `..` escape). Shared |
| 16 | * containment predicate reused by the snippet (`<<<`) and `src:` deck-file |
| 17 | * reads, and by the Vite slide-import guard (`isAllowedFile`). |
| 18 | */ |
| 19 | export function isPathInsideRoots(filePath: string, roots: string[]): boolean { |
| 20 | return isAllowedFile(filePath, roots) |
| 21 | } |
| 22 | |
| 23 | const RE_WHITESPACE_ONLY = /^\s*$/ |
| 24 | const RE_QUOTED_STRING = /^(['"])(.*)\1$/ |
| 25 | const RE_WHITESPACE = /\s+/g |
| 26 | const RE_WINDOWS_DRIVE = /^[A-Z]:\//i |
| 27 | |
| 28 | type Token = ReturnType<MarkdownExit['parseInline']>[number] |
| 29 | |
| 30 | type Jiti = ReturnType<typeof createJiti> |
| 31 | let jiti: Jiti | undefined |
| 32 | export function loadModule<T = unknown>(absolutePath: string): Promise<T> { |
| 33 | jiti ??= createJiti(fileURLToPath(import.meta.url), { |
| 34 | // Allows changes to take effect |
| 35 | moduleCache: false, |
| 36 | }) |
| 37 | return jiti.import(absolutePath) as Promise<T> |
| 38 | } |
| 39 | |
| 40 | export function stringifyMarkdownTokens(tokens: Token[]) { |
| 41 | return tokens.map(token => token.children |
| 42 | ?.filter(t => ['text', 'code_inline'].includes(t.type) && !t.content.match(RE_WHITESPACE_ONLY)) |
| 43 | .map(t => t.content.trim()) |
| 44 | .join(' ')) |
| 45 | .filter(Boolean) |
| 46 | .join(' ') |
| 47 | } |
| 48 | |
| 49 | const RE_WORD_CHARS_ONLY = /^[\w-]+$/ |
| 50 | const RE_REGEXP_CHARS = /[.*+?^${}()|[\]\\]/g |
| 51 | |
| 52 | export function applyNotesAutoRuby(md: string, notesAutoRuby: Record<string, string | undefined>) { |
| 53 | const keys = Object.keys(notesAutoRuby) |
| 54 | // Longest first, otherwise a shorter key shadows every key starting with it |
| 55 | .sort((a, b) => b.length - a.length) |
| 56 | // Add word boundaries to the keys when they are simple alphabets or numbers |
| 57 | .map(i => RE_WORD_CHARS_ONLY.test(i) ? `\\b${i}\\b` : i.replace(RE_REGEXP_CHARS, '\\$&')) |
| 58 | |
| 59 | if (!keys.length) |
| 60 | return md |
| 61 | |
| 62 | return md.replace( |
| 63 | new RegExp(`(${keys.join('|')})`, 'g'), |
| 64 | (match) => { |
| 65 | if (notesAutoRuby[match]) |
| 66 | return `<ruby>${match}<rt>${notesAutoRuby[match]}</rt></ruby>` |
| 67 | return match |
| 68 | }, |
| 69 | ) |
| 70 | } |
| 71 | |
| 72 | export function generateFontParams(options: ResolvedFontOptions) { |
| 73 | const weights = options.weights |
| 74 | .flatMap(i => options.italic ? [`0,${i}`, `1,${i}`] : [`${i}`]) |
| 75 | .sort() |
| 76 | .join(';') |
| 77 | const fontParams = options.webfonts |
| 78 | .map(i => `family=${i.replace(RE_QUOTED_STRING, '$1').replace(RE_WHITESPACE, '+')}:${options.italic ? 'ital,' : ''}wght@${weights}`) |
| 79 | .join('&') |
| 80 | return fontParams |
| 81 | } |
| 82 | |
| 83 | export function generateGoogleFontsUrl(options: ResolvedFontOptions) { |
| 84 | return `https://fonts.googleapis.com/css2?${generateFontParams(options)}&display=swap` |
| 85 | } |
| 86 | |
| 87 | export function generateCoollabsFontsUrl(options: ResolvedFontOptions) { |
| 88 | return `https://api.fonts.coollabs.io/fonts?${generateFontParams(options)}&display=swap` |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Update frontmatter patch and preserve the comments |
| 93 | */ |
| 94 | export function updateFrontmatterPatch(source: SourceSlideInfo, frontmatter: Record<string, any>) { |
| 95 | let doc = source.frontmatterDoc |
| 96 | if (!doc) { |
| 97 | source.frontmatterStyle = 'frontmatter' |
| 98 | source.frontmatterDoc = doc = new YAML.Document({}) |
| 99 | } |
| 100 | for (const [key, value] of Object.entries(frontmatter)) { |
| 101 | source.frontmatter[key] = value |
| 102 | if (value == null) { |
| 103 | doc.delete(key) |
| 104 | } |
| 105 | else { |
| 106 | const valueNode = doc.createNode(value) |
| 107 | let found = false |
| 108 | YAML.visit(doc.contents, { |
| 109 | Pair(_key, node, path) { |
| 110 | if (path.length === 1 && YAML.isScalar(node.key) && node.key.value === key) { |
| 111 | node.value = valueNode |
| 112 | found = true |
| 113 | return YAML.visit.BREAK |
| 114 | } |
| 115 | }, |
| 116 | }) |
| 117 | if (!found) { |
| 118 | if (!YAML.isMap(doc.contents)) |
| 119 | doc.contents = doc.createNode({}) |
| 120 | doc.contents.add( |
| 121 | doc.createPair(key, valueNode), |
| 122 | ) |
| 123 | } |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | export function getBodyJson(req: Connect.IncomingMessage) { |
| 129 | return new Promise<any>((resolve, reject) => { |
| 130 | let body = '' |
| 131 | req.on('data', chunk => body += chunk) |
| 132 | req.on('error', reject) |
| 133 | req.on('end', () => { |
| 134 | try { |
| 135 | resolve(JSON.parse(body) || {}) |
| 136 | } |
| 137 | catch (e) { |
| 138 | reject(e) |
| 139 | } |
| 140 | }) |
| 141 | }) |
| 142 | } |
| 143 | |
| 144 | function getImportGlobRelativePath(from: string, to: string) { |
| 145 | const normalizedFrom = slash(from) |
| 146 | const normalizedTo = slash(to) |
| 147 | return slash( |
| 148 | RE_WINDOWS_DRIVE.test(normalizedFrom) || RE_WINDOWS_DRIVE.test(normalizedTo) |
| 149 | ? win32.relative(normalizedFrom, normalizedTo) |
| 150 | : relative(normalizedFrom, normalizedTo), |
| 151 | ) |
| 152 | } |
| 153 | |
| 154 | function resolveImportGlobProxyModule(proxyBase: string, content: string) { |
| 155 | const hash = createHash('sha256').update(content).digest('hex').slice(0, 10) |
| 156 | return `${proxyBase}.${hash}.ts` |
| 157 | } |
| 158 | |
| 159 | export function createMakeAbsoluteImportGlob(baseRoot: string) { |
| 160 | const proxyModules = new Map<string, string>() |
| 161 | const proxyBasename = 'node_modules/.slidev/virtual/import-glob' |
| 162 | const proxyBase = slash(join(baseRoot, proxyBasename)) |
| 163 | |
| 164 | return function makeAbsoluteImportGlob( |
| 165 | globs: string[], |
| 166 | options: Partial<GeneralImportGlobOptions> = {}, |
| 167 | ) { |
| 168 | // Vite does not treat /@slidev/* as a real filesystem importer. Emit |
| 169 | // import.meta.glob from a proxy file so Vite resolves imports from disk. |
| 170 | const content = `export default ${makeAbsoluteImportGlobExpression(dirname(proxyBase), globs, options)}\n` |
| 171 | const proxyModule = resolveImportGlobProxyModule(proxyBase, content) |
| 172 | if (proxyModules.get(proxyModule) !== content) { |
| 173 | mkdirSync(dirname(proxyModule), { recursive: true }) |
| 174 | writeFileSync(proxyModule, content, 'utf-8') |
| 175 | proxyModules.set(proxyModule, content) |
| 176 | } |
| 177 | return toAtFS(proxyModule) |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | export type MakeAbsoluteImportGlob = ReturnType<typeof createMakeAbsoluteImportGlob> |
| 182 | |
| 183 | function makeAbsoluteImportGlobExpression( |
| 184 | self: string, |
| 185 | globs: string[], |
| 186 | options: Partial<GeneralImportGlobOptions> = {}, |
| 187 | ) { |
| 188 | const relativeGlobs = globs.map((glob) => { |
| 189 | const relativeGlob = getImportGlobRelativePath(self, glob) |
| 190 | return !relativeGlob.startsWith('.') && !RE_WINDOWS_DRIVE.test(relativeGlob) |
| 191 | ? `./${relativeGlob}` |
| 192 | : relativeGlob |
| 193 | }) |
| 194 | const opts: GeneralImportGlobOptions = { |
| 195 | eager: true, |
| 196 | exhaustive: true, |
| 197 | ...options, |
| 198 | } |
| 199 | return `import.meta.glob(${JSON.stringify(relativeGlobs)}, ${JSON.stringify(opts)})` |
| 200 | } |
| 201 |