ca396ce96b
Until this change, the config directory was assumed to be located at '/config'. This patch retains that default behaviour, but enables users/devs to override that behaviour by setting the HOMEPAGE_CONFIG_DIR variable.
89 lines
2.7 KiB
JavaScript
89 lines
2.7 KiB
JavaScript
/* eslint-disable no-console */
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import { join } from "path";
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import { copyFileSync, existsSync, mkdirSync, readFileSync } from "fs";
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import cache from "memory-cache";
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import yaml from "js-yaml";
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const cacheKey = "homepageEnvironmentVariables";
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const homepageVarPrefix = "HOMEPAGE_VAR_";
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const homepageFilePrefix = "HOMEPAGE_FILE_";
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export const CONF_DIR = process.env.HOMEPAGE_CONFIG_DIR ? process.env.HOMEPAGE_CONFIG_DIR : join(process.cwd(), "config");
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export default function checkAndCopyConfig(config) {
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if (!existsSync(CONF_DIR)) {
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mkdirSync(CONF_DIR, { recursive: true });
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}
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const configYaml = join(CONF_DIR, config);
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if (!existsSync(configYaml)) {
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const configSkeleton = join(process.cwd(), "src", "skeleton", config);
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try {
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copyFileSync(configSkeleton, configYaml)
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console.info("%s was copied to the config folder", config);
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} catch (err) {
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console.error("error copying config", err);
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throw err;
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}
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return true;
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}
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try {
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yaml.load(readFileSync(configYaml, "utf8"));
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return true;
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} catch (e) {
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return { ...e, config };
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}
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}
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function getCachedEnvironmentVars() {
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let cachedVars = cache.get(cacheKey);
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if (!cachedVars) {
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// initialize cache
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cachedVars = Object.entries(process.env).filter(([key, ]) => key.includes(homepageVarPrefix) || key.includes(homepageFilePrefix));
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cache.put(cacheKey, cachedVars);
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}
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return cachedVars;
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}
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export function substituteEnvironmentVars(str) {
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let result = str;
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if (result.includes('{{')) { // crude check if we have vars to replace
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const cachedVars = getCachedEnvironmentVars();
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cachedVars.forEach(([key, value]) => {
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if (key.startsWith(homepageVarPrefix)) {
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result = result.replaceAll(`{{${key}}}`, value);
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} else if (key.startsWith(homepageFilePrefix)) {
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const filename = value;
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const fileContents = readFileSync(filename, "utf8");
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result = result.replaceAll(`{{${key}}}`, fileContents);
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}
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});
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}
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return result;
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}
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export function getSettings() {
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checkAndCopyConfig("settings.yaml");
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const settingsYaml = join(CONF_DIR, "settings.yaml");
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const rawFileContents = readFileSync(settingsYaml, "utf8");
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const fileContents = substituteEnvironmentVars(rawFileContents);
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const initialSettings = yaml.load(fileContents) ?? {};
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if (initialSettings.layout) {
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// support yaml list but old spec was object so convert to that
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// see https://github.com/benphelps/homepage/issues/1546
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if (Array.isArray(initialSettings.layout)) {
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const layoutItems = initialSettings.layout
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initialSettings.layout = {}
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layoutItems.forEach(i => {
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const name = Object.keys(i)[0]
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initialSettings.layout[name] = i[name]
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})
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}
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}
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return initialSettings
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}
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