96 lines
2.6 KiB
TypeScript
96 lines
2.6 KiB
TypeScript
import { mkdir, readdir, readFile, stat, unlink, writeFile } from "fs/promises";
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import * as path from "path";
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import { PageMeta } from "./types";
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export class DiskStorage {
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rootPath: string;
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constructor(rootPath: string) {
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this.rootPath = rootPath;
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}
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async listPages(): Promise<PageMeta[]> {
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let fileNames: PageMeta[] = [];
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const walkPath = async (dir: string) => {
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let files = await readdir(dir);
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for (let file of files) {
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const fullPath = path.join(dir, file);
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let s = await stat(fullPath);
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if (s.isDirectory()) {
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await walkPath(fullPath);
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} else {
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if (path.extname(file) === ".md") {
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fileNames.push({
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name: fullPath.substring(
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this.rootPath.length + 1,
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fullPath.length - 3
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),
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lastModified: s.mtime.getTime(),
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});
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}
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}
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}
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};
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await walkPath(this.rootPath);
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return fileNames;
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}
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async readPage(pageName: string): Promise<{ text: string; meta: PageMeta }> {
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const localPath = path.join(this.rootPath, pageName + ".md");
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try {
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const s = await stat(localPath);
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return {
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text: await readFile(localPath, "utf8"),
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meta: {
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name: pageName,
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lastModified: s.mtime.getTime(),
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},
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};
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} catch (e) {
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// console.error("Error while reading page", pageName, e);
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throw Error(`Could not read page ${pageName}`);
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}
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}
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async writePage(pageName: string, text: string): Promise<PageMeta> {
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let localPath = path.join(this.rootPath, pageName + ".md");
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try {
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// Ensure parent folder exists
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await mkdir(path.dirname(localPath), { recursive: true });
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// Actually write the file
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await writeFile(localPath, text);
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// Fetch new metadata
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const s = await stat(localPath);
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return {
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name: pageName,
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lastModified: s.mtime.getTime(),
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};
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} catch (e) {
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console.error("Error while writing page", pageName, e);
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throw Error(`Could not write ${pageName}`);
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}
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}
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async getPageMeta(pageName: string): Promise<PageMeta> {
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let localPath = path.join(this.rootPath, pageName + ".md");
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try {
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const s = await stat(localPath);
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return {
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name: pageName,
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lastModified: s.mtime.getTime(),
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};
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} catch (e) {
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console.error("Error while getting page meta", pageName, e);
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throw Error(`Could not get meta for ${pageName}`);
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}
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}
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async deletePage(pageName: string) {
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let localPath = path.join(this.rootPath, pageName + ".md");
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await unlink(localPath);
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}
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}
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