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preinstall_check.js
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preinstall_check.js
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const isUsingNpm = process.env.npm_config_git !== undefined;
if (isUsingNpm) {
throw "Use Yarn instead of npm, see Kibana's contributing guidelines";
}
// The value of the `npm_config_argv` env for each command:
//
// - `npm install`: '{"remain":[],"cooked":["install"],"original":[]}'
// - `yarn`: '{"remain":[],"cooked":["install"],"original":[]}'
// - `yarn kbn bootstrap`: '{"remain":[],"cooked":["run","kbn"],"original":["kbn","bootstrap"]}'
const rawArgv = process.env.npm_config_argv;
if (rawArgv === undefined) {
return;
}
try {
const argv = JSON.parse(rawArgv);
if (argv.cooked.includes('kbn')) {
// all good, trying to install deps using `kbn`
return;
}
if (argv.cooked.includes('install')) {
console.log('\nWARNING: When installing dependencies, prefer `yarn kbn bootstrap`\n');
}
} catch (e) {
// if it fails we do nothing, as this is just intended to be a helpful message
}