99 lines
2.8 KiB
JavaScript
99 lines
2.8 KiB
JavaScript
'use strict';
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const node_fs = require('node:fs');
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const node_path = require('node:path');
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const node_os = require('node:os');
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const destr = require('destr');
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const flat = require('flat');
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const defu = require('defu');
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const RE_KEY_VAL = /^\s*([^\s=]+)\s*=\s*(.*)?\s*$/;
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const RE_LINES = /\n|\r|\r\n/;
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const defaults = {
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name: ".conf",
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dir: process.cwd(),
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flat: false
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};
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function withDefaults(options) {
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if (typeof options === "string") {
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options = { name: options };
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}
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return { ...defaults, ...options };
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}
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function parse(contents, options = {}) {
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const config = {};
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const lines = contents.split(RE_LINES);
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for (const line of lines) {
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const match = line.match(RE_KEY_VAL);
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if (!match) {
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continue;
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}
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const key = match[1];
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if (!key || key === "__proto__" || key === "constructor") {
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continue;
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}
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const value = destr(match[2].trim());
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if (key.endsWith("[]")) {
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const nkey = key.slice(0, Math.max(0, key.length - 2));
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config[nkey] = (config[nkey] || []).concat(value);
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continue;
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}
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config[key] = value;
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}
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return options.flat ? config : flat.unflatten(config, { overwrite: true });
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}
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function parseFile(path, options) {
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if (!node_fs.existsSync(path)) {
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return {};
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}
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return parse(node_fs.readFileSync(path, "utf8"), options);
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}
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function read(options) {
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options = withDefaults(options);
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return parseFile(node_path.resolve(options.dir, options.name), options);
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}
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function readUser(options) {
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options = withDefaults(options);
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options.dir = process.env.XDG_CONFIG_HOME || node_os.homedir();
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return read(options);
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}
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function serialize(config) {
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return Object.entries(flat.flatten(config)).map(([key, value]) => `${key}=${typeof value === "string" ? value : JSON.stringify(value)}`).join("\n");
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}
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function write(config, options) {
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options = withDefaults(options);
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node_fs.writeFileSync(node_path.resolve(options.dir, options.name), serialize(config), {
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encoding: "utf8"
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});
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}
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function writeUser(config, options) {
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options = withDefaults(options);
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options.dir = process.env.XDG_CONFIG_HOME || node_os.homedir();
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write(config, options);
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}
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function update(config, options) {
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options = withDefaults(options);
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if (!options.flat) {
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config = flat.unflatten(config, { overwrite: true });
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}
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const newConfig = defu(config, read(options));
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write(newConfig, options);
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return newConfig;
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}
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function updateUser(config, options) {
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options = withDefaults(options);
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options.dir = process.env.XDG_CONFIG_HOME || node_os.homedir();
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return update(config, options);
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}
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exports.defaults = defaults;
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exports.parse = parse;
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exports.parseFile = parseFile;
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exports.read = read;
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exports.readUser = readUser;
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exports.serialize = serialize;
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exports.update = update;
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exports.updateUser = updateUser;
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exports.write = write;
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exports.writeUser = writeUser;
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