"use strict";
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var pathUtils = require("../util/path");
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/*
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Get a path relative to the site path.
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*/
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function relatePath(absolutePath, siteAbsolutePath)
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{
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var relativePath = [];
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// At this point, it's related to the host/port
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var related = true;
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var parentIndex = -1;
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// Find parents
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siteAbsolutePath.forEach( function(siteAbsoluteDir, i)
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{
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if (related)
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{
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if (absolutePath[i] !== siteAbsoluteDir)
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{
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related = false;
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}
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else
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{
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parentIndex = i;
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}
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}
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if (!related)
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{
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// Up one level
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relativePath.push("..");
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}
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});
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// Form path
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absolutePath.forEach( function(dir, i)
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{
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if (i > parentIndex)
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{
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relativePath.push(dir);
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}
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});
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return relativePath;
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}
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function relativize(urlObj, siteUrlObj, options)
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{
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if (urlObj.extra.relation.minimumScheme)
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{
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var pathArray = relatePath(urlObj.path.absolute.array, siteUrlObj.path.absolute.array);
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urlObj.path.relative.array = pathArray;
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urlObj.path.relative.string = pathUtils.join(pathArray);
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}
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}
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module.exports = relativize;
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