41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
const { withDangerousMod } = require('@expo/config-plugins');
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const fs = require('fs');
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const path = require('path');
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const MAX_JOBS = '8';
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// React Native's hermes-engine build hardcodes
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// Runtime.getRuntime().availableProcessors()
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// for `cmake --build -j`, ignoring the CMAKE_BUILD_PARALLEL_LEVEL env var.
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// On high-core CI runners this exhausts memory.
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// This plugin caps it during prebuild.
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const withCmakeJobLimit = (config) =>
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withDangerousMod(config, [
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'android',
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async (config) => {
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const root = config.modRequest.projectRoot;
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const hermesPath = path.join(
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root,
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'node_modules',
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'react-native',
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'ReactAndroid',
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'hermes-engine',
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'build.gradle.kts',
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);
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if (fs.existsSync(hermesPath)) {
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let content = fs.readFileSync(hermesPath, 'utf-8');
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content = content.replace(
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/Runtime\.getRuntime\(\)\.availableProcessors\(\)\.toString\(\)/,
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`"${MAX_JOBS}"`,
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);
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fs.writeFileSync(hermesPath, content);
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console.log(`[withCmakeJobLimit] capped hermes-engine jobs to ${MAX_JOBS}`);
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}
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return config;
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},
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]);
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module.exports = withCmakeJobLimit;
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