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add project name validation #1662

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merged 2 commits into from
Feb 28, 2017
Merged

add project name validation #1662

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f3a807c
add project name validation
johann-sonntagbauer Feb 27, 2017
1a5d86d
Tweak console output
gaearon Feb 28, 2017
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18 changes: 17 additions & 1 deletion packages/create-react-app/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@
'use strict';

var chalk = require('chalk');
var validateProjectName = require("validate-npm-package-name");

var currentNodeVersion = process.versions.node;
if (currentNodeVersion.split('.')[0] < 4) {
Expand Down Expand Up @@ -97,6 +98,14 @@ if (typeof projectName === 'undefined') {
process.exit(1);
}

function printValidationResults(results) {
if (typeof results !== 'undefined') {
results.forEach(function (error) {
console.error(chalk.red(' * ' + error));
});
}
}

var hiddenProgram = new commander.Command()
.option('--internal-testing-template <path-to-template>', '(internal usage only, DO NOT RELY ON THIS) ' +
'use a non-standard application template')
Expand Down Expand Up @@ -303,11 +312,18 @@ function checkNodeVersion(packageName) {
}

function checkAppName(appName) {
var validationResult = validateProjectName(appName);
if (!validationResult.validForNewPackages) {
console.error('Could not create a project called ' + chalk.red('"' + appName + '"') + ' because of npm naming restrictions:');
printValidationResults(validationResult.errors);
printValidationResults(validationResult.warnings);
process.exit(1);
}

// TODO: there should be a single place that holds the dependencies
var dependencies = ['react', 'react-dom'];
var devDependencies = ['react-scripts'];
var allDependencies = dependencies.concat(devDependencies).sort();

if (allDependencies.indexOf(appName) >= 0) {
console.error(
chalk.red(
Expand Down
3 changes: 2 additions & 1 deletion packages/create-react-app/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@
"commander": "^2.9.0",
"cross-spawn": "^4.0.0",
"fs-extra": "^1.0.0",
"semver": "^5.0.3"
"semver": "^5.0.3",
"validate-npm-package-name": "^3.0.0"
}
}