Revision of Convert 11ty frontmatter to Astro's

tiffmin revised this gist 1746391523. Go to revision

1 file changed, 3 insertions

11ty-to-astro.mjs

			@@ -1,3 +1,6 @@
	1	+	// ChatGPT conversation to help with this script:
	2	+	// https://chatgpt.com/share/6817d17d-5a24-8002-9471-b5aa174f689d
	3	+
1	4		import fs from "fs";
2	5		import path from "path";
3	6		import matter from "gray-matter";

tiffmin revised this gist 1746391294. Go to revision

1 file changed, 140 insertions

11ty-to-astro.mjs(file created)

		@@ -0,0 +1,140 @@
1	+	import fs from "fs";
2	+	import path from "path";
3	+	import matter from "gray-matter";
4	+	import yaml from "js-yaml";
5	+
6	+	// Configuration
7	+	const inputDir = "./src/content/post/"; // Folder containing markdown files
8	+	const backupDir = "./backup"; // Backup before modifying
9	+
10	+	// Create backup directory if it doesn't exist
11	+	if (!fs.existsSync(backupDir)) {
12	+	fs.mkdirSync(backupDir);
13	+	}
14	+
15	+	// Preferred frontmatter key order
16	+	const preferredKeyOrder = [
17	+	"title",
18	+	"description",
19	+	"publishDate",
20	+	"updatedDate",
21	+	"tags",
22	+	"slug",
23	+	"draft",
24	+	];
25	+
26	+	function sortFrontmatterKeys(data) {
27	+	const sorted = {};
28	+	preferredKeyOrder.forEach((key) => {
29	+	if (data[key] !== undefined) {
30	+	sorted[key] = data[key];
31	+	}
32	+	});
33	+	Object.keys(data).forEach((key) => {
34	+	if (!sorted.hasOwnProperty(key)) {
35	+	sorted[key] = data[key];
36	+	}
37	+	});
38	+	return sorted;
39	+	}
40	+
41	+	// Format dates consistently
42	+	function formatDate(value) {
43	+	if (value instanceof Date) {
44	+	return value.toISOString().split("T")[0];
45	+	}
46	+	return value;
47	+	}
48	+
49	+	// Extract date from filename if present
50	+	function extractDateFromFilename(filename) {
51	+	const match = filename.match(/^(\d{4}-\d{2}-\d{2})-(.+)$/);
52	+	if (match) {
53	+	return {
54	+	date: match[1],
55	+	newFilename: match[2],
56	+	};
57	+	}
58	+	return null;
59	+	}
60	+
61	+	// Clean and fix a single file
62	+	function fixFile(filePath) {
63	+	const rawContent = fs.readFileSync(filePath, "utf8");
64	+	const { data: frontmatter, content } = matter(rawContent);
65	+
66	+	let cleanedFrontmatter = { ...frontmatter };
67	+	const fileName = path.basename(filePath);
68	+	const dateInfo = extractDateFromFilename(fileName);
69	+
70	+	// Move date from filename into publishDate if missing
71	+	if (dateInfo) {
72	+	if (!cleanedFrontmatter.publishDate) {
73	+	cleanedFrontmatter.publishDate = dateInfo.date;
74	+	}
75	+	}
76	+
77	+	// Rename "date" -> "publishDate" if necessary
78	+	if (cleanedFrontmatter.date && !cleanedFrontmatter.publishDate) {
79	+	cleanedFrontmatter.publishDate = cleanedFrontmatter.date;
80	+	delete cleanedFrontmatter.date;
81	+	}
82	+
83	+	// Fix date formats
84	+	Object.keys(cleanedFrontmatter).forEach((key) => {
85	+	if (key.toLowerCase().includes("date")) {
86	+	cleanedFrontmatter[key] = formatDate(cleanedFrontmatter[key]);
87	+	}
88	+	});
89	+
90	+	// If publishDate missing, set draft: true
91	+	if (
92	+	!cleanedFrontmatter.publishDate && cleanedFrontmatter.draft === undefined
93	+	) {
94	+	cleanedFrontmatter.draft = true;
95	+	}
96	+
97	+	// Sort frontmatter keys
98	+	cleanedFrontmatter = sortFrontmatterKeys(cleanedFrontmatter);
99	+
100	+	const yamlContent = yaml.dump(cleanedFrontmatter, {
101	+	lineWidth: 1000,
102	+	quotingType: '"',
103	+	});
104	+
105	+	const finalContent = `---\n${yamlContent}---\n\n${content.trim()}\n`;
106	+
107	+	// Backup original
108	+	const backupPath = path.join(backupDir, fileName);
109	+	fs.copyFileSync(filePath, backupPath);
110	+
111	+	// Determine new filename
112	+	let outputPath = filePath;
113	+	if (dateInfo) {
114	+	const newFilename = dateInfo.newFilename;
115	+	outputPath = path.join(path.dirname(filePath), newFilename);
116	+	}
117	+
118	+	// Write cleaned file (possibly with new filename)
119	+	fs.writeFileSync(outputPath, finalContent, "utf8");
120	+
121	+	// If filename changed, delete the old file
122	+	if (outputPath !== filePath) {
123	+	fs.unlinkSync(filePath);
124	+	console.log(`Fixed & Renamed: ${fileName} -> ${path.basename(outputPath)}`);
125	+	} else {
126	+	console.log(`Fixed: ${fileName}`);
127	+	}
128	+	}
129	+
130	+	// Process all markdown files
131	+	function fixAllFiles() {
132	+	const files = fs.readdirSync(inputDir);
133	+	files.forEach((file) => {
134	+	if (file.endsWith(".md")) {
135	+	fixFile(path.join(inputDir, file));
136	+	}
137	+	});
138	+	}
139	+
140	+	fixAllFiles();

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