1 | const loaderUtils = require("loader-utils");
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2 | const ts = require("typescript");
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3 | const path = require("path");
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4 | const fs = require("fs-extra");
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5 |
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6 | function loader(content) {
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7 | if (this.cacheable) {
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8 | this.cacheable();
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9 | }
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10 |
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11 | const options = loaderUtils.getOptions(this) || {};
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12 |
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13 | const resourcePath = this.resourcePath.replace(/\\/g, "/");
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14 |
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15 | const resourceDirPath = path.dirname(resourcePath);
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16 | const configPath = options.tsConfigPath || ts.findConfigFile(resourceDirPath, ts.sys.fileExists, "tsconfig.json");
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17 | const contextPath = path.dirname(configPath).replace(/\\/g, "/");
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18 |
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19 | const parsedConfig = ts.parseJsonConfigFileContent(fs.readJsonSync(configPath), ts.sys, path.dirname(configPath));
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20 | parsedConfig.options.outDir = parsedConfig.options.outDir || path.resolve(path.dirname(configPath), "dist");
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21 |
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22 | const result = ts.transpileModule(content, {
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23 | compilerOptions: parsedConfig.options,
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24 | reportDiagnostics: false
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25 | });
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26 |
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27 | const sourceMap = JSON.parse(result.sourceMapText);
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28 | const fileRelativePath = path.relative(contextPath, resourcePath);
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29 | sourceMap.sources = [fileRelativePath];
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30 | sourceMap.file = fileRelativePath;
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31 | sourceMap.sourcesContent = [content];
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32 |
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33 | this.callback(undefined, result.outputText, sourceMap);
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34 | }
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35 |
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36 | module.exports = loader; |
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