@xt0rted/expressive-code-file-icons/dist/icons.js

Add Visual Studio Code file icons to Expressive Code frames

import fs from "node:fs/promises";
import { fromHtml } from "hast-util-from-html";
import pc from "picocolors";
import { DEFAULT_FILE, getIconForFile } from "vscode-icons-js";
import { fileExists } from "./utils.js";
async function lookUpIcon(iconOverride) {
    if (iconOverride) {
        const overrideIconFileName = `file_type_${iconOverride}.svg`;
        if (await fileExists(`icons/${overrideIconFileName}`)) {
            return overrideIconFileName;
        }
        console.error(pc.red(`Icon override not found: ${iconOverride}`));
    }
    return undefined;
}
async function selectIcon(fileName, language, iconOverride) {
    // First try to use the override icon
    if (iconOverride) {
        const overrideIcon = await lookUpIcon(iconOverride);
        if (overrideIcon) {
            return overrideIcon;
        }
    }
    // If there was no override try to find one based on the file name
    const fileNameIcon = getIconForFile(fileName);
    if (fileNameIcon !== DEFAULT_FILE) {
        return fileNameIcon;
    }
    // Lastly if there is still no icon then try to use the language of the code block
    const languageIcon = await lookUpIcon(language);
    return languageIcon ?? DEFAULT_FILE;
}
export async function iconForFile(fileName, language, iconOverride) {
    const iconFileName = await selectIcon(fileName, language, iconOverride);
    const iconFile = new URL(`icons/${iconFileName}`, import.meta.url);
    const iconSvg = await fs.readFile(iconFile, "utf8");
    const iconAsHtml = fromHtml(iconSvg, { fragment: true, space: "svg" });
    const iconSvgElement = iconAsHtml.children[0];
    return iconSvgElement;
}
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