mirror of
https://github.com/cachix/install-nix-action.git
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66 lines
2.1 KiB
JavaScript
66 lines
2.1 KiB
JavaScript
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/**
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* JSON Schema link handler
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* Copyright (c) 2007 Kris Zyp SitePen (www.sitepen.com)
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* Licensed under the MIT (MIT-LICENSE.txt) license.
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*/
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(function (root, factory) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define([], function () {
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return factory();
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});
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} else if (typeof module === 'object' && module.exports) {
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// Node. Does not work with strict CommonJS, but
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// only CommonJS-like environments that support module.exports,
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// like Node.
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module.exports = factory();
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} else {
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// Browser globals
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root.jsonSchemaLinks = factory();
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}
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}(this, function () {// setup primitive classes to be JSON Schema types
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var exports = {};
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exports.cacheLinks = true;
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exports.getLink = function(relation, instance, schema){
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// gets the URI of the link for the given relation based on the instance and schema
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// for example:
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// getLink(
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// "brother",
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// {"brother_id":33},
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// {links:[{rel:"brother", href:"Brother/{brother_id}"}]}) ->
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// "Brother/33"
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var links = schema.__linkTemplates;
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if(!links){
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links = {};
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var schemaLinks = schema.links;
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if(schemaLinks && schemaLinks instanceof Array){
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schemaLinks.forEach(function(link){
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/* // TODO: allow for multiple same-name relations
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if(links[link.rel]){
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if(!(links[link.rel] instanceof Array)){
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links[link.rel] = [links[link.rel]];
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}
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}*/
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links[link.rel] = link.href;
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});
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}
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if(exports.cacheLinks){
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schema.__linkTemplates = links;
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}
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}
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var linkTemplate = links[relation];
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return linkTemplate && exports.substitute(linkTemplate, instance);
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};
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exports.substitute = function(linkTemplate, instance){
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return linkTemplate.replace(/\{([^\}]*)\}/g, function(t, property){
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var value = instance[decodeURIComponent(property)];
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if(value instanceof Array){
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// the value is an array, it should produce a URI like /Table/(4,5,8) and store.get() should handle that as an array of values
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return '(' + value.join(',') + ')';
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}
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return value;
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});
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};
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return exports;
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}));
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