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lib.js
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lib.js
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import fs from 'fs';
import path from 'path';
// import slash from 'slash';
function slash(path) {
const isExtendedLengthPath = /^\\\\\?\\/.test(path);
const hasNonAscii = /[^\u0000-\u0080]+/.test(path); // eslint-disable-line no-control-regex
if (isExtendedLengthPath || hasNonAscii) {
return path;
}
return path.replace(/\\/g, '/');
}
const traverse = function (
dir,
result,
topDir,
filter,
) {
if (!result) {
result = [];
}
fs.readdirSync(dir).forEach((name) => {
const fPath = path.resolve(dir, name);
const stats = fs.statSync(fPath);
if ((!filter && !name.startsWith('.')) || (filter && filter(name, stats))) {
const fileStats = {
name,
path: fPath,
relativePath: path.relative(topDir || dir, fPath),
mtimeMs: stats.mtimeMs,
directory: stats.isDirectory(),
};
if (fileStats.directory) {
result.push(fileStats);
return traverse(fPath, result, topDir || dir, filter);
}
result.push(fileStats);
}
});
return result;
};
export function fixPages(options) {
const {pages, assets, removeBuiltInServiceWorkerRegistration, injectPagesInServiceWorker} = options;
const filtered = traverse(pages).filter((file) => file.name === 'index.html');
const findSrc = 'src="/';
const reSrc = new RegExp(findSrc, 'g');
const findHref = 'href="/';
const reHref = new RegExp(findHref, 'g');
const findContent = 'content="/';
const reContent = new RegExp(findContent, 'g');
const findFromImport = 'from "/';
const reFromImport = new RegExp(findFromImport, 'g');
// TODO dynamic window.basepath ?
const findDynamicImport = "import\\(\"/";
const reDynamicImport = new RegExp(findDynamicImport, 'g');
const findRelpath = 'window.relpath="/';
const reRelpath = new RegExp(findRelpath, 'g');
const linkReloadScript = `
<script>
// ensure we save href as they are loaded, so they do not change on page navigation
document.querySelectorAll("link[href]").forEach((v) => v.href = v.href);
</script>
`;
const pageURLs = [];
for (const page of filtered) {
const indexHTMLPath = path.join(pages, page.relativePath);
const indexHTMLContent = fs.readFileSync(indexHTMLPath).toString();
const pageIndexHTMLURLPath = slash(page.relativePath);
const pageURLPath = path.dirname(pageIndexHTMLURLPath);
let numSegment = 0;
let baseHref = '';
if (pageURLPath != '' && pageURLPath != '.' && pageURLPath != './') {
const numSlashes = pageURLPath.split('/').length - 1;
numSegment ++;
baseHref = '../';
for (let i = 0; i < numSlashes; i++) {
baseHref += '../';
numSegment ++;
}
}
if (pageURLPath === '.') {
pageURLs.push('/');
} else {
let url = pageURLPath;
if (!url.startsWith('/')) {
url = "/" + url;
}
if (!url.endsWith('/')) {
url = url + '/';
}
pageURLs.push(url);
}
// console.log({baseHref, pageURLPath, indexHTMLPath, pageIndexHTMLURLPath})
const findBase = `{"base":""`;
const reBase = new RegExp(findBase, 'g');
// console.log({normalised, split, sliced, str, numSegment: ${numSegment}});
const baseFunc = `(() => {
const normalised = (location.pathname.endsWith("/") ? location.pathname.substr(0, location.pathname.length -1) : location.pathname).substr(1);
const split = normalised.split('/');
const sliced = ${numSegment} ? split.slice(0, ${-(numSegment)}) : split;
const str = (sliced.length > 0 && sliced[0] !== "") ? "/" + sliced.join('/') : "";
return str;
})()`;
let newIndexHTMLContent = indexHTMLContent
.replace(reSrc, 'src="' + baseHref)
.replace(reHref, 'href="' + baseHref)
.replace(reContent, 'content="' + baseHref)
.replace(reFromImport, 'from "' + baseHref)
.replace(reDynamicImport, 'import("' + baseHref)
.replace(reBase, `{"base": ${baseFunc}`);
// newIndexHTMLContent = newIndexHTMLContent.replace(reRelpath, 'window.relpath="' + baseHref);
const headEnd = newIndexHTMLContent.indexOf('</head>');
newIndexHTMLContent =
newIndexHTMLContent.slice(0, headEnd) +
`${linkReloadScript}` +
newIndexHTMLContent.slice(headEnd);
fs.writeFileSync(indexHTMLPath, newIndexHTMLContent);
}
const appJSFiles = traverse(path.join(assets, '_app')).filter((file) => file.name.endsWith(".js"));
for (const jsFile of appJSFiles) {
if (jsFile.name.startsWith('start-')) {
const filePath = path.join(assets, '_app', jsFile.relativePath);
// console.log({name: jsFile.name, filePath})
const content = fs.readFileSync(filePath).toString();
let newContent = content;
// replace /_app with ./_app
const find = "\"/_app";
const re = new RegExp(find, 'g');
newContent = newContent.replace(re, '"./_app')
// fix transformation
const BROKEN = 'history.replaceState({},"",`${a.path}${location.search}`)';
const FIXED = 'history.replaceState({},"",`${this.base}${a.path}${location.search}`)';
if (newContent.indexOf(BROKEN) === -1) {
// console.warn('could not find broken code, svelte-kit might have been updated with different code. if so sveltejs-adapter-ipfs need to be updated');
} else {
newContent = newContent.replace(BROKEN, FIXED);
}
// this transformation make sure path ends with a slash
// const SLASH_REMOVAL_CODE = 'location.pathname.endsWith("/")&&"/"!==location.pathname&&history.replaceState({},"",`${location.pathname.slice(0,-1)}${location.search}`),';
// const SLASH_APPENDING_CODE = '!location.pathname.endsWith("/")&&history.replaceState({},"",`${location.pathname + "/"}${location.search}`),';
// if (newContent.indexOf(SLASH_REMOVAL_CODE) === -1) {
// // console.warn('could not find slash removal code, svelte-kit might have been updated with different code. if so sveltejs-adapter-ipfs need to be updated');
// } else {
// newContent = newContent.replace(SLASH_REMOVAL_CODE, SLASH_APPENDING_CODE);
// }
const TO_REMOVE = 'if("/"!==a.path){const t=a.path.endsWith("/");(t&&"never"===this.trailing_slash||!t&&"always"===this.trailing_slash&&!a.path.split("/").pop().includes("."))&&(a.path=t?a.path.slice(0,-1):a.path+"/",history.replaceState({},"",`${this.base}${a.path}${location.search}`))}';
if (newContent.indexOf(TO_REMOVE) === -1) {
// console.warn('could not find code to remove, svelte-kit might have been updated with different code. if so sveltejs-adapter-ipfs need to be updated');
} else {
newContent = newContent.replace(TO_REMOVE, "");
}
if (removeBuiltInServiceWorkerRegistration) {
// this transformation remove auto service worker registration, allowing you to provide your own
const SERVICE_WORKER_REGISTRATION_CODE = '"serviceWorker"in navigator&&navigator.serviceWorker.register("/service-worker.js");';
if (newContent.indexOf(SERVICE_WORKER_REGISTRATION_CODE) === -1) {
// console.warn('could not find service worker registration code, svelte-kit might have been updated with different code. if so sveltejs-adapter-ipfs need to be updated');
} else {
newContent = newContent.replace(SERVICE_WORKER_REGISTRATION_CODE, '');
}
}
fs.writeFileSync(filePath, newContent);
}
}
if (injectPagesInServiceWorker) {
const filePath = path.join(pages, 'service-worker.js');
try {
const content = fs.readFileSync(filePath).toString();
const newContent = content.replace('"_INJECT_PAGES_"', `"${pageURLs.join('","')}"`)
fs.writeFileSync(filePath, newContent);
} catch (e) {
console.error(`could not update service worker`);
}
}
}