| 1 | const { realpathSync } = require("fs");
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| 2 | const { sync: readPackage } = require("read-pkg-up");
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| 3 |
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| 4 | const { packageJson: pkg } = readPackage({ cwd: realpathSync(process.cwd()) });
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| 5 | const hasIn = (key, name) => {
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| 6 | for (const x in pkg[key] || {}) {
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| 7 | if (x === name) return true;
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| 8 | }
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| 9 | return false;
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| 10 | };
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| 11 | const keys = ["dependencies", "devDependencies", "peerDependencies"];
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| 12 | const hasInDeps = name => keys.some(k => hasIn(k, name));
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| 13 |
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| 14 | module.exports = {
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| 15 | extends: [
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| 16 | "./",
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| 17 | hasInDeps("flow-bin") && "./flowtype",
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| 18 | hasInDeps("react") && "./react",
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| 19 | ].filter(Boolean),
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| 20 | overrides: [
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| 21 | hasInDeps("jest") && {
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| 22 | files: [
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| 23 | "*.{test,spec}.{js,ts,jsx,tsx}",
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| 24 | "**/__tests__/**/*.{js,ts,jsx,tsx}",
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| 25 | ],
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| 26 | extends: "./jest",
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| 27 | },
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| 28 | hasInDeps("typescript") && {
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| 29 | files: ["*.{ts,tsx}"],
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| 30 | extends: "./typescript-without-type",
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| 31 | },
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| 32 | ].filter(Boolean),
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| 33 | };
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