mirror of
https://github.com/discourse/discourse.git
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c139767055
In the past, the result of template compilation would be stored directly in `Ember.TEMPLATES`. Following the move to more modern ember-cli-based compilation, templates are now compiled to es6 modules. To handle forward/backwards compatibility during these changes we had logic in `discourse-boot` which would extract templates from the es6 modules and store them into the legacy-style `Ember.TEMPLATES` object. This commit removes that shim, and updates our resolver to fetch templates directly from es6 modules. This is closer to how 'vanilla' Ember handles template resolution. We still have a lot of discourse-specific logic, but now it is centralised in one location and should be easier to understand and normalize in future. This commit should not introduce any behaviour change.
422 lines
14 KiB
JavaScript
422 lines
14 KiB
JavaScript
import { dasherize, decamelize } from "@ember/string";
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import deprecated from "discourse-common/lib/deprecated";
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import { findHelper } from "discourse-common/lib/helpers";
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import SuffixTrie from "discourse-common/lib/suffix-trie";
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import Resolver from "ember-resolver";
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import { buildResolver as buildLegacyResolver } from "discourse-common/lib/legacy-resolver";
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import DiscourseTemplateMap from "discourse-common/lib/discourse-template-map";
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let _options = {};
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let moduleSuffixTrie = null;
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const DEPRECATED_MODULES = new Map(
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Object.entries({
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"controller:discovery.categoryWithID": {
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newName: "controller:discovery.category",
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since: "2.6.0",
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},
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"controller:discovery.parentCategory": {
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newName: "controller:discovery.category",
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since: "2.6.0",
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},
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"controller:tags-show": { newName: "controller:tag-show", since: "2.6.0" },
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"controller:tags.show": { newName: "controller:tag.show", since: "2.6.0" },
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"controller:tagsShow": { newName: "controller:tagShow", since: "2.6.0" },
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"route:discovery.categoryWithID": {
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newName: "route:discovery.category",
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since: "2.6.0",
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},
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"route:discovery.parentCategory": {
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newName: "route:discovery.category",
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since: "2.6.0",
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},
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"route:tags-show": { newName: "route:tag-show", since: "2.6.0" },
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"route:tags.show": { newName: "route:tag.show", since: "2.6.0" },
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"route:tagsShow": { newName: "route:tagShow", since: "2.6.0" },
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"app-events:main": {
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newName: "service:app-events",
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since: "2.4.0",
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dropFrom: "2.9.0.beta1",
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},
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// Deprecations below are silenced because they're in widespread use, and upgrading
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// themes/plugins right now would break their compatibility with the stable branch.
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// These should be unsilenced for the release of 2.9.0 stable.
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"store:main": {
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newName: "service:store",
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since: "2.8.0.beta8",
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dropFrom: "2.9.0.beta1",
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silent: true,
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},
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"search-service:main": {
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newName: "service:search",
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since: "2.8.0.beta8",
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dropFrom: "2.9.0.beta1",
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silent: true,
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},
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"key-value-store:main": {
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newName: "service:key-value-store",
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since: "2.9.0.beta7",
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dropFrom: "3.0.0",
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silent: true,
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},
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"pm-topic-tracking-state:main": {
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newName: "service:pm-topic-tracking-state",
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since: "2.9.0.beta7",
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dropFrom: "3.0.0",
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silent: true,
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},
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"message-bus:main": {
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newName: "service:message-bus",
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since: "2.9.0.beta7",
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dropFrom: "3.0.0",
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silent: true,
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},
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"site-settings:main": {
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newName: "service:site-settings",
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since: "2.9.0.beta7",
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dropFrom: "3.0.0",
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silent: true,
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},
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"current-user:main": {
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newName: "service:current-user",
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since: "2.9.0.beta7",
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dropFrom: "3.0.0",
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silent: true,
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},
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"session:main": {
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newName: "service:session",
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since: "2.9.0.beta7",
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dropFrom: "3.0.0",
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silent: true,
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},
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"site:main": {
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newName: "service:site",
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since: "2.9.0.beta7",
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dropFrom: "3.0.0",
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silent: true,
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},
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"topic-tracking-state:main": {
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newName: "service:topic-tracking-state",
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since: "2.9.0.beta7",
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dropFrom: "3.0.0",
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silent: true,
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},
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})
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);
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export function setResolverOption(name, value) {
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_options[name] = value;
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}
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export function getResolverOption(name) {
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return _options[name];
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}
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export function clearResolverOptions() {
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_options = {};
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}
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function lookupModuleBySuffix(suffix) {
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if (!moduleSuffixTrie) {
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moduleSuffixTrie = new SuffixTrie("/");
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const searchPaths = [
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"discourse/", // Includes themes/plugins
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"discourse-common/",
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"select-kit/",
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"admin/",
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"wizard/",
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"truth-helpers/",
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];
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Object.keys(requirejs.entries).forEach((name) => {
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if (
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searchPaths.some((s) => name.startsWith(s)) &&
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!name.includes("/templates/")
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) {
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moduleSuffixTrie.add(name);
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}
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});
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}
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return moduleSuffixTrie.withSuffix(suffix, 1)[0];
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}
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export function buildResolver(baseName) {
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let LegacyResolver = buildLegacyResolver(baseName);
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return class extends Resolver {
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LegacyResolver = LegacyResolver;
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init(props) {
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super.init(props);
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this.legacyResolver = this.LegacyResolver.create(props);
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}
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resolveRouter(/* parsedName */) {
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const routerPath = `${baseName}/router`;
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if (requirejs.entries[routerPath]) {
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const module = requirejs(routerPath, null, null, true);
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return module.default;
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}
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}
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// We overwrite this instead of `normalize` so we still get the benefits of the cache.
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_normalize(fullName) {
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const deprecationInfo = DEPRECATED_MODULES.get(fullName);
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if (deprecationInfo) {
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if (!deprecationInfo.silent) {
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deprecated(
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`"${fullName}" is deprecated, use "${deprecationInfo.newName}" instead`,
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{
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since: deprecationInfo.since,
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dropFrom: deprecationInfo.dropFrom,
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id: "discourse.resolver-resolutions",
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}
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);
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}
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fullName = deprecationInfo.newName;
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}
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const split = fullName.split(":");
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const type = split[0];
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let normalized;
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if (type === "template" && split[1]?.includes("connectors/")) {
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// The default normalize implementation will skip dasherizing component template names
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// We need the same for our connector templates names
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normalized = "template:" + split[1].replace(/_/g, "-");
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} else {
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normalized = super._normalize(fullName);
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}
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// This is code that we don't really want to keep long term. The main situation where we need it is for
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// doing stuff like `controllerFor('adminWatchedWordsAction')` where the real route name
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// is actually `adminWatchedWords.action`. The default behavior for the former is to
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// normalize to `adminWatchedWordsAction` where the latter becomes `adminWatchedWords.action`.
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// While these end up looking up the same file ultimately, they are treated as different
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// items and so we can end up with two distinct version of the controller!
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if (
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split.length > 1 &&
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(type === "controller" || type === "route" || type === "template")
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) {
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let corrected;
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// This should only apply when there's a dot or slash in the name
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if (split[1].includes(".") || split[1].includes("/")) {
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// Check to see if the dasherized version exists. If it does we want to
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// normalize to that eagerly so the normalized versions of the dotted/slashed and
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// dotless/slashless match.
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const dashed = dasherize(split[1].replace(/[\.\/]/g, "-"));
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const adminBase = `admin/${type}s/`;
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const wizardBase = `wizard/${type}s/`;
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if (
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lookupModuleBySuffix(`${type}s/${dashed}`) ||
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requirejs.entries[adminBase + dashed] ||
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requirejs.entries[adminBase + dashed.replace(/^admin[-]/, "")] ||
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requirejs.entries[
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adminBase + dashed.replace(/^admin[-]/, "").replace(/-/g, "_")
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] ||
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requirejs.entries[wizardBase + dashed] ||
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requirejs.entries[wizardBase + dashed.replace(/^wizard[-]/, "")] ||
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requirejs.entries[
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wizardBase + dashed.replace(/^wizard[-]/, "").replace(/-/g, "_")
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]
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) {
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corrected = type + ":" + dashed;
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}
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}
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if (corrected && corrected !== normalized) {
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normalized = corrected;
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}
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}
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return normalized;
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}
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chooseModuleName(moduleName, parsedName) {
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let resolved = super.chooseModuleName(moduleName, parsedName);
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if (resolved) {
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return resolved;
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}
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const standard = parsedName.fullNameWithoutType;
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let variants = [standard];
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if (standard.includes("/")) {
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variants.push(parsedName.fullNameWithoutType.replace(/\//g, "-"));
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}
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for (let name of variants) {
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// If we end with the name we want, use it. This allows us to define components within plugins.
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const suffix = parsedName.type + "s/" + name;
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resolved = lookupModuleBySuffix(dasherize(suffix));
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if (resolved) {
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return resolved;
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}
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}
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}
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resolveOther(parsedName) {
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let resolved = super.resolveOther(parsedName);
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if (!resolved) {
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let legacyParsedName = this.legacyResolver.parseName(
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`${parsedName.type}:${parsedName.fullName}`
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);
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resolved = this.legacyResolver.resolveOther(legacyParsedName);
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if (resolved) {
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deprecated(
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`Unable to resolve with new resolver, but resolved with legacy resolver: ${parsedName.fullName}`,
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{ id: "discourse.legacy-resolver-fallback" }
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);
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}
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}
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return resolved;
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}
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resolveHelper(parsedName) {
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return findHelper(parsedName.fullNameWithoutType);
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}
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// If no match is found here, the resolver falls back to `resolveOther`.
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resolveRoute(parsedName) {
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if (parsedName.fullNameWithoutType === "basic") {
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return requirejs("discourse/routes/discourse", null, null, true)
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.default;
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}
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}
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resolveTemplate(parsedName) {
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return (
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this.findMobileTemplate(parsedName) ||
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this.findTemplate(parsedName) ||
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this.findAdminTemplate(parsedName) ||
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this.findWizardTemplate(parsedName) ||
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this.findLoadingTemplate(parsedName) ||
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this.findConnectorTemplate(parsedName) ||
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this.discourseTemplateModule("not_found")
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);
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}
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findLoadingTemplate(parsedName) {
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if (parsedName.fullNameWithoutType.match(/loading$/)) {
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return this.discourseTemplateModule("loading");
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}
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}
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findConnectorTemplate(parsedName) {
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if (parsedName.fullName.startsWith("template:connectors/")) {
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const connectorParsedName = this.parseName(
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parsedName.fullName
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.replace("template:connectors/", "template:")
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.replace("components/", "")
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);
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return this.findTemplate(connectorParsedName);
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}
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}
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findMobileTemplate(parsedName) {
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if (_options.mobileView) {
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return this.findTemplate(parsedName, "mobile/");
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}
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}
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/**
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* Given a template path, this function will return a template, taking into account
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* priority rules for theme and plugin overrides. See `lib/discourse-template-map.js`
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*/
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discourseTemplateModule(name) {
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const resolvedName = DiscourseTemplateMap.resolve(name);
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if (resolvedName) {
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return require(resolvedName).default;
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}
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}
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findTemplate(parsedName, prefix) {
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prefix = prefix || "";
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const withoutType = parsedName.fullNameWithoutType,
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underscored = decamelize(withoutType).replace(/-/g, "_"),
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segments = withoutType.split("/");
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return (
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// Convert dots and dashes to slashes
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this.discourseTemplateModule(
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prefix + withoutType.replace(/[\.-]/g, "/")
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) ||
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// Default unmodified behavior of original resolveTemplate.
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this.discourseTemplateModule(prefix + withoutType) ||
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// Underscored without namespace
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this.discourseTemplateModule(prefix + underscored) ||
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// Underscored with first segment as directory
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this.discourseTemplateModule(prefix + underscored.replace("_", "/")) ||
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// Underscore only the last segment
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this.discourseTemplateModule(
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`${prefix}${segments.slice(0, -1).join("/")}/${segments[
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segments.length - 1
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].replace(/-/g, "_")}`
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) ||
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// All dasherized
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this.discourseTemplateModule(prefix + withoutType.replace(/\//g, "-"))
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);
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}
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// Try to find a template within a special admin namespace, e.g. adminEmail => admin/templates/email
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// (similar to how discourse lays out templates)
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findAdminTemplate(parsedName) {
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if (parsedName.fullNameWithoutType === "admin") {
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return this.discourseTemplateModule("admin/templates/admin");
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}
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let namespaced, match;
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if (parsedName.fullNameWithoutType.startsWith("components/")) {
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return (
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this.findTemplate(parsedName, "admin/templates/") ||
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this.findTemplate(parsedName, "admin/") // Nested under discourse/templates/admin (e.g. from plugins)
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);
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} else if (/^admin[_\.-]/.test(parsedName.fullNameWithoutType)) {
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namespaced = parsedName.fullNameWithoutType.slice(6);
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} else if (
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(match = parsedName.fullNameWithoutType.match(/^admin([A-Z])(.+)$/))
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) {
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namespaced = `${match[1].toLowerCase()}${match[2]}`;
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}
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let resolved;
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if (namespaced) {
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let adminParsedName = this.parseName(`template:${namespaced}`);
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resolved =
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this.findTemplate(adminParsedName, "admin/templates/") ||
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this.findTemplate(parsedName, "admin/templates/") ||
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this.findTemplate(adminParsedName, "admin/"); // Nested under discourse/templates/admin (e.g. from plugin)
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}
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return resolved;
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}
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findWizardTemplate(parsedName) {
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if (parsedName.fullNameWithoutType === "wizard") {
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return this.discourseTemplateModule("wizard/templates/wizard");
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}
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let namespaced;
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if (parsedName.fullNameWithoutType.startsWith("components/")) {
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// Look up components as-is
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namespaced = parsedName.fullNameWithoutType;
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} else if (/^wizard[_\.-]/.test(parsedName.fullNameWithoutType)) {
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// This may only get hit for the loading routes and may be removable.
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namespaced = parsedName.fullNameWithoutType.slice(7);
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}
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if (namespaced) {
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let wizardParsedName = this.parseName(
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`template:wizard/templates/${namespaced}`
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);
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return this.findTemplate(wizardParsedName);
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}
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}
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};
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}
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