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import path from "node:path";
import { TemplatePath, isPlainObject } from "@11ty/eleventy-utils";
class TemplatePermalink {
// `link` with template syntax should have already been rendered in Template.js
constructor(link, extraSubdir) {
let isLinkAnObject = isPlainObject(link);
this._isRendered = true;
this._writeToFileSystem = true;
let buildLink;
if (isLinkAnObject) {
if ("build" in link) {
buildLink = link.build;
}
// find the first string key
for (let key in link) {
if (typeof key !== "string") {
continue;
}
break;
}
} else {
buildLink = link;
}
// permalink: false and permalink: build: false
if (typeof buildLink === "boolean") {
if (buildLink === false) {
this._writeToFileSystem = false;
} else {
throw new Error(
`\`permalink: ${
isLinkAnObject ? "build: " : ""
}true\` is not a supported feature in Eleventy. Did you mean \`permalink: ${
isLinkAnObject ? "build: " : ""
}false\`?`,
);
}
} else if (buildLink) {
if (typeof buildLink !== "string") {
let stringToString = "toString" in buildLink ? `:\n\n${buildLink.toString()}` : "";
throw new Error(
"Expected permalink value to be a string. Received `" +
typeof buildLink +
"`" +
stringToString,
);
}
this.buildLink = buildLink;
}
if (isLinkAnObject) {
// default if permalink is an Object but does not have a `build` prop
if (!("build" in link)) {
this._writeToFileSystem = false;
this._isRendered = false;
}
}
this.extraPaginationSubdir = extraSubdir || "";
}
setUrlTransforms(transforms) {
this._urlTransforms = transforms;
}
get urlTransforms() {
return this._urlTransforms || [];
}
_addDefaultLinkFilename(link) {
return link + (link.slice(-1) === "/" ? "index.html" : "");
}
toOutputPath() {
if (!this.buildLink) {
// empty or false
return false;
}
let cleanLink = this._addDefaultLinkFilename(this.buildLink);
let parsed = path.parse(cleanLink);
return TemplatePath.join(parsed.dir, this.extraPaginationSubdir, parsed.base);
}
// Used in url transforms feature
static getUrlStem(original) {
let subject = original;
if (original.endsWith(".html")) {
subject = original.slice(0, -1 * ".html".length);
}
return TemplatePermalink.normalizePathToUrl(subject);
}
static normalizePathToUrl(original) {
let compare = original || "";
let needleHtml = "/index.html";
let needleBareTrailingSlash = "/index/";
let needleBare = "/index";
if (compare.endsWith(needleHtml)) {
return compare.slice(0, compare.length - needleHtml.length) + "/";
} else if (compare.endsWith(needleBareTrailingSlash)) {
return compare.slice(0, compare.length - needleBareTrailingSlash.length) + "/";
} else if (compare.endsWith(needleBare)) {
return compare.slice(0, compare.length - needleBare.length) + "/";
}
return original;
}
// This method is used to generate the `page.url` variable.
// remove all index.html’s from links
// index.html becomes /
// test/index.html becomes test/
toHref() {
if (!this.buildLink) {
// empty or false
return false;
}
let transformedLink = this.toOutputPath();
let original = (transformedLink.charAt(0) !== "/" ? "/" : "") + transformedLink;
let normalized = TemplatePermalink.normalizePathToUrl(original) || "";
for (let transform of this.urlTransforms) {
original =
transform({
url: normalized,
urlStem: TemplatePermalink.getUrlStem(original),
}) ?? original;
}
return TemplatePermalink.normalizePathToUrl(original);
}
toPath(outputDir) {
if (!this.buildLink) {
return false;
}
let uri = this.toOutputPath();
if (uri === false) {
return false;
}
return TemplatePath.addLeadingDotSlash(TemplatePath.normalize(outputDir + "/" + uri));
}
toPathFromRoot() {
if (!this.buildLink) {
return false;
}
let uri = this.toOutputPath();
if (uri === false) {
return false;
}
return TemplatePath.addLeadingDotSlash(TemplatePath.normalize(uri));
}
static _hasDuplicateFolder(dir, base) {
let folders = dir.split("/");
if (!folders[folders.length - 1]) {
folders.pop();
}
return folders[folders.length - 1] === base;
}
static generate(dir, filenameNoExt, extraSubdir, fileExtension = "html") {
let path;
if (fileExtension === "html") {
let hasDupeFolder = TemplatePermalink._hasDuplicateFolder(dir, filenameNoExt);
path =
(dir ? dir + "/" : "") +
(filenameNoExt !== "index" && !hasDupeFolder ? filenameNoExt + "/" : "") +
"index.html";
} else {
path = (dir ? dir + "/" : "") + filenameNoExt + "." + fileExtension;
}
return new TemplatePermalink(path, extraSubdir);
}
}
export default TemplatePermalink;
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