gabriel / musehub public
lang-detect.ts typescript
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sha256:3ff9c9863a9891bdcde71b4a43228f66d0493e38b7cc1d09fe9eb7de774046b2 feat: add repair-commit wire endpoint (API parity with repa… Opus 4.8 minor ⚠ breaking 1 day ago
1 /**
2 * lang-detect.ts — Map file paths to highlight.js language identifiers.
3 *
4 * Pure function, no DOM or hljs dependency — fully unit-testable.
5 * Used by blob.ts and diff.ts for client-side syntax highlighting.
6 */
7
8 const EXT_MAP: Record<string, string> = {
9 py: 'python', pyw: 'python',
10 ts: 'typescript', tsx: 'typescript',
11 js: 'javascript', jsx: 'javascript', mjs: 'javascript', cjs: 'javascript',
12 rs: 'rust',
13 go: 'go',
14 swift: 'swift',
15 kt: 'kotlin', kts: 'kotlin',
16 java: 'java',
17 rb: 'ruby', rake: 'ruby',
18 cpp: 'cpp', cc: 'cpp', cxx: 'cpp', c: 'cpp', h: 'cpp', hpp: 'cpp',
19 hs: 'haskell',
20 json: 'json', jsonc: 'json',
21 yaml: 'yaml', yml: 'yaml',
22 toml: 'toml',
23 bats: 'bash',
24 sh: 'bash', bash: 'bash', zsh: 'bash',
25 html: 'xml', htm: 'xml', xml: 'xml', svg: 'xml',
26 css: 'css', scss: 'css', sass: 'css',
27 sql: 'sql',
28 md: 'markdown', mdx: 'markdown',
29 txt: 'plaintext',
30 };
31
32 /** Dotfiles with no extension, keyed by exact filename. */
33 const FILENAME_MAP: Record<string, string> = {
34 '.museattributes': 'toml',
35 '.museignore': 'toml',
36 };
37
38 /**
39 * Return the highlight.js language identifier for a file path.
40 * Falls back to `'plaintext'` for unknown extensions.
41 */
42 export function extToLang(path: string): string {
43 const filename = path.split('/').pop() ?? path;
44 if (filename in FILENAME_MAP) return FILENAME_MAP[filename]!;
45 // Zsh completion files: _<command> with no extension (e.g. completions/_muse)
46 if (filename.startsWith('_') && !filename.includes('.')) return 'bash';
47 const ext = filename.split('.').pop()?.toLowerCase() ?? '';
48 return EXT_MAP[ext] ?? 'plaintext';
49 }
File History 1 commit
sha256:3ff9c9863a9891bdcde71b4a43228f66d0493e38b7cc1d09fe9eb7de774046b2 feat: add repair-commit wire endpoint (API parity with repa… Opus 4.8 minor ⚠ 1 day ago