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annotate third_party/bun/node_modules/loose-envify/replace.js @ 71:75de5903355c

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Giagantic changes that update Dowa library to be more align with stb style array and hashmap. Updated Seobeo to be caching on server side instead of file level caching. Deleted bunch of things I don't really use.
author June Park <parkjune1995@gmail.com>
date Sun, 28 Dec 2025 20:34:22 -0800
parents de54585a40f1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 'use strict';
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2
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3 var jsTokens = require('js-tokens').default;
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4
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5 var processEnvRe = /\bprocess\.env\.[_$a-zA-Z][$\w]+\b/;
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6 var spaceOrCommentRe = /^(?:\s|\/[/*])/;
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7
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8 function replace(src, envs) {
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9 if (!processEnvRe.test(src)) {
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10 return src;
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11 }
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13 var out = [];
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14 var purge = envs.some(function(env) {
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15 return env._ && env._.indexOf('purge') !== -1;
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16 });
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17
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18 jsTokens.lastIndex = 0
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19 var parts = src.match(jsTokens);
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20
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21 for (var i = 0; i < parts.length; i++) {
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22 if (parts[i ] === 'process' &&
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23 parts[i + 1] === '.' &&
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24 parts[i + 2] === 'env' &&
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25 parts[i + 3] === '.') {
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26 var prevCodeToken = getAdjacentCodeToken(-1, parts, i);
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27 var nextCodeToken = getAdjacentCodeToken(1, parts, i + 4);
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28 var replacement = getReplacementString(envs, parts[i + 4], purge);
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29 if (prevCodeToken !== '.' &&
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30 nextCodeToken !== '.' &&
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31 nextCodeToken !== '=' &&
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32 typeof replacement === 'string') {
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33 out.push(replacement);
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34 i += 4;
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35 continue;
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36 }
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37 }
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38 out.push(parts[i]);
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39 }
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40
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41 return out.join('');
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42 }
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43
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44 function getAdjacentCodeToken(dir, parts, i) {
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45 while (true) {
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46 var part = parts[i += dir];
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47 if (!spaceOrCommentRe.test(part)) {
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48 return part;
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49 }
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50 }
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51 }
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52
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53 function getReplacementString(envs, name, purge) {
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54 for (var j = 0; j < envs.length; j++) {
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55 var env = envs[j];
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56 if (typeof env[name] !== 'undefined') {
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57 return JSON.stringify(env[name]);
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58 }
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59 }
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60 if (purge) {
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61 return 'undefined';
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62 }
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63 }
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64
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65 module.exports = replace;