publish-please/lib/utils/get-node-infos.js

Safe and highly functional replacement for `npm publish`.

'use strict';

const exec = require('cp-sugar').exec;
const execSync = require('./exec-sync');
const semver = require('semver');
const NPM_VERSION_WITH_AUDIT_JSON_REPORTER = '6.1.0';
const NPM_VERSION_WITH_PACK_JSON_REPORTER = '5.9.0';

module.exports = {
    getNodeInfos,
    getNodeInfosSync
};

function getNodeInfosSync() {
    const npmVersion = getCurrentNpmVersionSync();
    const nodeVersion = getCurrentNodeVersionSync();
    const isAtLeastNode6 = isAtLeastVersion6(nodeVersion);
    const isAtLeastNpm6 = isAtLeastVersion6(npmVersion);
    const isSafeNpm = isSafeNpmVersion(npmVersion);
    const npmAuditHasJsonReporter = npmAuditCanReportInJson(npmVersion);
    const npmPackHasJsonReporter = npmPackCanReportInJson(npmVersion);
    const shouldUsePrePublishOnlyScript = shouldUsePrePublishOnlyScriptInThis(npmVersion);
    return {
        nodeVersion,
        npmVersion,
        npmVersionWithAuditJsonReporter: NPM_VERSION_WITH_AUDIT_JSON_REPORTER,
        isAtLeastNode6,
        isAtLeastNpm6,
        isSafeNpm,
        npmAuditHasJsonReporter,
        npmPackHasJsonReporter,
        shouldUsePrePublishOnlyScript
    };
}

function getNodeInfos() {
    return Promise.all([getCurrentNodeVersion(), getCurrentNpmVersion()]).then(results => {
        const nodeVersion = results[0];
        const npmVersion = results[1];
        const isAtLeastNode6 = isAtLeastVersion6(nodeVersion);
        const isAtLeastNpm6 = isAtLeastVersion6(npmVersion);
        const isSafeNpm = isSafeNpmVersion(npmVersion);
        const npmAuditHasJsonReporter = npmAuditCanReportInJson(npmVersion);
        const npmPackHasJsonReporter = npmPackCanReportInJson(npmVersion);
        const shouldUsePrePublishOnlyScript = shouldUsePrePublishOnlyScriptInThis(npmVersion);

        return Promise.resolve({
            nodeVersion,
            npmVersion,
            npmVersionWithAuditJsonReporter: NPM_VERSION_WITH_AUDIT_JSON_REPORTER,
            isAtLeastNode6,
            isAtLeastNpm6,
            isSafeNpm,
            npmAuditHasJsonReporter,
            npmPackHasJsonReporter,
            shouldUsePrePublishOnlyScript
        });
    });
}

function getCurrentNpmVersion() {
    return exec('npm version --json').then(out => JSON.parse(out).npm);
}

function getCurrentNpmVersionSync() {
    const result = execSync('npm version --json');
    return JSON.parse(result).npm;
}

function getCurrentNodeVersion() {
    return Promise.resolve(process.version);
}

function getCurrentNodeVersionSync() {
    return process.version;
}

function isAtLeastVersion6(version) {
    return semver.gte(version, '6.0.0');
}

function isSafeNpmVersion(version) {
    return semver.satisfies(version, '>=2.15.8 <3.0.0 || >=3.10.1');
}

function shouldUsePrePublishOnlyScriptInThis(version) {
    return semver.gte(version, '5.6.0');
}

function npmAuditCanReportInJson(version) {
    return semver.gte(version, NPM_VERSION_WITH_AUDIT_JSON_REPORTER);
}

function npmPackCanReportInJson(version) {
    return semver.gte(version, NPM_VERSION_WITH_PACK_JSON_REPORTER);
}