angular-docs-cn/tools/check-environment.js

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var exec = require('child_process').exec;
var semver = require('semver');
var checkNodeModules = require('./npm/check-node-modules.js');
function checkEnvironment(reqs) {
exec('npm --version', function(e, stdout) {
var foundNpmVersion = semver.clean(stdout);
var foundNodeVersion = process.version;
var issues = [];
if (!semver.satisfies(foundNodeVersion, reqs.requiredNodeVersion)) {
issues.push('You are running unsupported node version. Found: ' + foundNodeVersion +
' Expected: ' + reqs.requiredNodeVersion + '. Use nvm to update your node version.');
}
if (!semver.satisfies(foundNpmVersion, reqs.requiredNpmVersion)) {
issues.push('You are running unsupported npm version. Found: ' + foundNpmVersion +
' Expected: ' + reqs.requiredNpmVersion + '. Run: npm update -g npm');
}
if (!checkNodeModules()) {
issues.push('Your node_modules directory is stale or out of sync with npm-shrinkwrap.json. Run: npm install');
}
if (issues.length) {
console.warn(Array(80).join('!'));
console.warn('Your environment is not in a good shape. Following issues were found:');
issues.forEach(function(issue) {console.warn(' - ' + issue)});
console.warn(Array(80).join('!'));
}
});
}
module.exports = checkEnvironment;