First list and integer questions, spaces to tabs

src/frontmatter.js

@@ -9,15 +9,15 @@ export function getAuthor(post) {
 
 // get array of decoded category names, filtered as specified in settings
 export function getCategories(post) {
-    if (!post.data.category) {
-        return [];
-    }
+	if (!post.data.category) {
+		return [];
+	}
 
-    const categories = post.data.category
-        .filter(category => category.$.domain === 'category')
-        .map(({ $: attributes }) => decodeURIComponent(attributes.nicename));
+	const categories = post.data.category
+		.filter(category => category.$.domain === 'category')
+		.map(({ $: attributes }) => decodeURIComponent(attributes.nicename));
 
-    return categories.filter(category => !settings.filter_categories.includes(category));
+	return categories.filter(category => !settings.filter_categories.includes(category));
 }
 
 // get cover image filename, previously decoded and set on post.meta
@@ -29,15 +29,15 @@ export function getCoverImage(post) {
 // get post date, optionally formatted as specified in settings
 // this value is also used for year/month folders, date prefixes, etc. as needed
 export function getDate(post) {
-    const dateTime = luxon.DateTime.fromRFC2822(post.data.pubDate[0], { zone: settings.custom_date_timezone });
+	const dateTime = luxon.DateTime.fromRFC2822(post.data.pubDate[0], { zone: settings.custom_date_timezone });
 
-    if (settings.custom_date_formatting) {
-        return dateTime.toFormat(settings.custom_date_formatting);
-    } else if (settings.include_time_with_date) {
-        return dateTime.toISO();
-    } else {
-        return dateTime.toISODate();
-    }
+	if (settings.custom_date_formatting) {
+		return dateTime.toFormat(settings.custom_date_formatting);
+	} else if (settings.include_time_with_date) {
+		return dateTime.toISO();
+	} else {
+		return dateTime.toISODate();
+	}
 }
 
 // get excerpt, not decoded, newlines collapsed

src/normalizers.js

@@ -2,31 +2,48 @@ import fs from 'fs';
 import path from 'path';
 
 export function boolean(value) {
-    if (typeof value === 'boolean') {
-        return value;
-    } else if (value === 'true') {
-        return true;
-    } else if (value === 'false') {
-        return false;
-    }
+	if (typeof value === 'boolean') {
+		return value;
+	} else if (value === 'true') {
+		return true;
+	} else if (value === 'false') {
+		return false;
+	}
 
-    throw new Error('Must be true or false.');
+	throw new Error('Must be true or false.');
 }
 
 export function filePath(value) {
-    const unwrapped = value.replace(/"(.*?)"/, '$1');
-    const absolute = path.resolve(unwrapped);
+	const unwrapped = value.replace(/"(.*?)"/, '$1');
+	const absolute = path.resolve(unwrapped);
 
-    let fileExists;
-    try {
-        fileExists = fs.existsSync(absolute) && fs.statSync(absolute).isFile();
-    } catch (ex) {
-        fileExists = false;
-    }
+	let fileExists;
+	try {
+		fileExists = fs.existsSync(absolute) && fs.statSync(absolute).isFile();
+	} catch (ex) {
+		fileExists = false;
+	}
 
-    if (fileExists) {
-        return absolute;
-    } else {
-        throw new Error('File not found at ' + absolute + '.');
-    }
+	if (fileExists) {
+		return absolute;
+	}
+
+	throw new Error('File not found at ' + absolute + '.');
+}
+
+export function list(value) {
+	if (Array.isArray(value)) {
+		return value;
+	} else {
+		return value.trim().split(/\s*,\s*/);
+	}
+}
+
+export function integer(value) {
+	const int = parseInt(value);
+	if (!Number.isNaN(int) && int >= 0) {
+		return int;
+	}
+
+	throw new Error('Must be an integer >= 0.');
 }

src/parser.js

@@ -26,7 +26,7 @@ export async function parseFilePromise(config) {
 	}
 
 	mergeImagesIntoPosts(images, posts);
-	populateFrontmatter(posts);
+	populateFrontmatter(posts, config);
 
 	return posts;
 }
@@ -162,10 +162,10 @@ function mergeImagesIntoPosts(images, posts) {
 	});
 }
 
-function populateFrontmatter(posts) {
+function populateFrontmatter(posts, config) {
 	posts.forEach(post => {
 		post.frontmatter = {};
-		settings.frontmatter_fields.forEach(field => {
+		config.frontmatterFields.forEach(field => {
 			const [key, alias] = field.split(':');
 
 			let frontmatterGetter = frontmatter['get' + key.replace(/^./, (match) => match.toUpperCase())];

src/questions.js

@@ -1,6 +1,14 @@
 import * as inquirer from '@inquirer/prompts';
 
+// questions with a description are displayed in command line help
+// questions with a prompt are included in the wizard (if not set on the command line)
 export const all = [
+	{
+		name: 'wizard',
+		type: 'boolean',
+		description: 'Use wizard',
+		default: true
+	},
 	{
 		name: 'input',
 		type: 'file-path',
@@ -91,16 +99,20 @@ export const all = [
 		],
 		prompt: inquirer.select
 	},
-	{
-		name: 'wizard',
-		type: 'boolean',
-		description: 'Use wizard',
-		default: true
-	},
 	{
 		name: 'output',
 		type: 'folder-path',
 		description: 'Path to output folder',
 		default: 'output'
-	}
+	},
+	{
+		name: 'frontmatter-fields',
+		type: 'list',
+		default: ['title', 'date', 'categories', 'tags', 'coverImage']
+	},
+	{
+		name: 'image-file-request-delay',
+		type: 'integer',
+		default: 500
+	},
 ];

src/settings.js

@@ -2,17 +2,17 @@
 // Order is preserved. If a field has an empty value, it will not be included. You can rename a
 // field by providing an alias after a ':'. For example, 'date:created' will include 'date' in
 // frontmatter, but renamed to 'created'.
-export const frontmatter_fields = [
-	'title',
-	'date',
-	'categories',
-	'tags',
-	'coverImage'
-];
+// export const frontmatter_fields = [
+// 	'title',
+// 	'date',
+// 	'categories',
+// 	'tags',
+// 	'coverImage'
+// ];
 
 // Time in ms to wait between requesting image files. Increase this if you see timeouts or
 // server errors.
-export const image_file_request_delay = 500;
+// export const image_file_request_delay = 500;
 
 // Time in ms to wait between saving Markdown files. Increase this if your file system becomes
 // overloaded.

src/writer.js

@@ -120,7 +120,7 @@ async function writeImageFilesPromise(posts, config) {
 					destinationPath,
 					delay
 				};
-				delay += settings.image_file_request_delay;
+				delay += config.imageFileRequestDelay;
 				return [payload];
 			}
 		});