gatsby
Version:
Blazing fast modern site generator for React
59 lines (58 loc) • 2.47 kB
JavaScript
;
var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
exports.__esModule = true;
exports.writeRedirects = exports.startRedirectListener = void 0;
var _debounce2 = _interopRequireDefault(require("lodash/debounce"));
var _fsExtra = _interopRequireDefault(require("fs-extra"));
var _gatsbyCoreUtils = require("gatsby-core-utils");
var _reporter = _interopRequireDefault(require("gatsby-cli/lib/reporter"));
var _redux = require("../redux");
let lastHash = null;
let bootstrapFinished = false;
const writeRedirects = async () => {
bootstrapFinished = true;
const {
program,
redirects,
pages
} = _redux.store.getState();
const redirectMatchingPageWarnings = [];
const browserRedirects = [];
for (const redirect of redirects) {
const alternativePath = redirect.fromPath.endsWith(`/`) ? redirect.fromPath.slice(0, -1) : redirect.fromPath + `/`;
let hasSamePage;
if ((hasSamePage = pages.has(redirect.fromPath)) || pages.has(alternativePath)) {
redirectMatchingPageWarnings.push(` - page: "${hasSamePage ? redirect.fromPath : alternativePath}" and redirect: "${redirect.fromPath}" -> "${redirect.toPath}"`);
}
// Filter for redirects that are meant for the browser.
if (redirect.redirectInBrowser) {
browserRedirects.push({
...redirect,
fromPath: redirect.ignoreCase ? redirect.fromPath.toLowerCase() : redirect.fromPath
});
}
}
if (redirectMatchingPageWarnings.length > 0) {
_reporter.default.warn(`There are routes that match both page and redirect. Pages take precedence over redirects so the redirect will not work:\n${redirectMatchingPageWarnings.join(`\n`)}`);
}
const newHash = await (0, _gatsbyCoreUtils.md5)(JSON.stringify(browserRedirects));
if (newHash === lastHash) {
return;
}
lastHash = newHash;
await _fsExtra.default.writeFile((0, _gatsbyCoreUtils.joinPath)(program.directory, `.cache/redirects.json`), JSON.stringify(browserRedirects, null, 2));
};
exports.writeRedirects = writeRedirects;
const debouncedWriteRedirects = (0, _debounce2.default)(() => {
// Don't write redirects again until bootstrap has finished.
if (bootstrapFinished) {
writeRedirects();
}
}, 250);
const startRedirectListener = () => {
_redux.emitter.on(`CREATE_REDIRECT`, () => {
debouncedWriteRedirects();
});
};
exports.startRedirectListener = startRedirectListener;
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