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Change error wording and list conflicting files when initializing app #2785

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merged 3 commits into from
Jul 14, 2017
Merged

Change error wording and list conflicting files when initializing app #2785

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23e0792
change error wording and list conflicting files when initializing app
OwenFlood Jul 13, 2017
f4142ec
update code
OwenFlood Jul 14, 2017
7a9439e
Update createReactApp.js
Timer Jul 14, 2017
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31 changes: 24 additions & 7 deletions packages/create-react-app/createReactApp.js
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Original file line number Diff line number Diff line change
Expand Up @@ -143,11 +143,7 @@ function createApp(name, verbose, version, template) {

checkAppName(appName);
fs.ensureDirSync(name);
if (!isSafeToCreateProjectIn(root)) {
console.log(
`The directory ${chalk.green(name)} contains files that could conflict.`
);
console.log('Try using a new directory name.');
if (!isSafeToCreateProjectIn(root, name)) {
process.exit(1);
}

Expand Down Expand Up @@ -571,7 +567,7 @@ function setCaretRangeForRuntimeDeps(packageName) {
// If project only contains files generated by GH, it’s safe.
// We also special case IJ-based products .idea because it integrates with CRA:
// https://github.com/facebookincubator/create-react-app/pull/368#issuecomment-243446094
function isSafeToCreateProjectIn(root) {
function isSafeToCreateProjectIn(root, name) {
const validFiles = [
'.DS_Store',
'Thumbs.db',
Expand All @@ -585,7 +581,28 @@ function isSafeToCreateProjectIn(root) {
'.hgignore',
'.hgcheck',
];
return fs.readdirSync(root).every(file => validFiles.indexOf(file) >= 0);
console.log();

const conflicts = fs
.readdirSync(root)
.filter(file => !validFiles.includes(file));
if (conflicts.length < 1) {
return true;
}

console.log(
`The directory ${chalk.green(name)} contains files that could conflict:`
);
console.log();
for (const file of conflicts) {
console.log(` ${file}`);
}
console.log();
console.log(
'Either try using a new directory name, or remove the files listed above.'
);

return false;
}

function checkIfOnline(useYarn) {
Expand Down