feat: add easy-slides CLI

scripts/export.ts

@@ -0,0 +1,43 @@
+import 'dotenv/config'
+import { mkdir } from 'node:fs/promises'
+import path from 'node:path'
+import { loadProjectConfig } from './lib/config.ts'
+import { resolveDeck } from './lib/content.ts'
+import { runSlidev } from './lib/run-slidev.ts'
+import { resolveTheme } from './lib/theme.ts'
+
+const args = process.argv.slice(2)
+const slug = args.find(argument => !argument.startsWith('-'))
+const formatIndex = args.indexOf('--format')
+const format = formatIndex >= 0 ? args[formatIndex + 1] : 'pdf'
+const allowed = new Set(['pdf', 'png', 'pptx', 'md'])
+
+if (!allowed.has(format))
+  throw new Error(`不支持导出格式：${format}`)
+
+const config = await loadProjectConfig()
+const deck = await resolveDeck(slug, process.cwd(), config.slidesDir)
+const exportDir = path.join(process.cwd(), config.exportDir)
+await mkdir(exportDir, { recursive: true })
+const output = path.join(exportDir, `${deck.slug}.${format}`)
+
+const slidevArgs = [
+  'export',
+  deck.entry,
+  '--theme',
+  resolveTheme(config.theme),
+  '--format',
+  format,
+  '--output',
+  output,
+]
+
+// Slidev's one-piece exporter may capture off-screen lazy images before they
+// are painted. Per-slide export renders each canvas as the active slide and is
+// reliable for Markdown images across PNG, PDF, and screenshot-based PPTX.
+if (format !== 'md')
+  slidevArgs.push('--per-slide')
+
+await runSlidev(slidevArgs)
+
+console.log(`导出完成：${path.relative(process.cwd(), output)}`)