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Merge pull request #367 from shelljs/perf/cd

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perf(cd): only run `stat` once
This commit is contained in:
Ari Porad 2016-02-29 17:18:35 -08:00
commit c661c83ef0
1 changed files with 15 additions and 8 deletions
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23
src/cd.js
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@ -16,13 +16,20 @@ function _cd(options, dir) {
dir = common.state.previousDir;
}
if (!fs.existsSync(dir))
common.error('no such file or directory: ' + dir);
if (!fs.statSync(dir).isDirectory())
common.error('not a directory: ' + dir);
common.state.previousDir = process.cwd();
process.chdir(dir);
try {
var curDir = process.cwd();
process.chdir(dir);
common.state.previousDir = curDir;
} catch (e) {
// something went wrong, let's figure out the error
var err;
try {
fs.statSync(dir); // if this succeeds, it must be some sort of file
err = 'not a directory: ' + dir;
} catch (e) {
err = 'no such file or directory: ' + dir;
}
if (err) common.error(err);
}
}
module.exports = _cd;