aaac7fed
 liuqimichale
add
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var common = require('./common');
var os = require('os');
var fs = require('fs');
common.register('tempdir', _tempDir, {
allowGlobbing: false,
wrapOutput: false,
});
// Returns false if 'dir' is not a writeable directory, 'dir' otherwise
function writeableDir(dir) {
if (!dir || !fs.existsSync(dir)) return false;
if (!fs.statSync(dir).isDirectory()) return false;
var testFile = dir + '/' + common.randomFileName();
try {
fs.writeFileSync(testFile, ' ');
common.unlinkSync(testFile);
return dir;
} catch (e) {
/* istanbul ignore next */
return false;
}
}
//@
//@ ### tempdir()
//@
//@ Examples:
//@
//@ ```javascript
//@ var tmp = tempdir(); // "/tmp" for most *nix platforms
//@ ```
//@
//@ Searches and returns string containing a writeable, platform-dependent temporary directory.
//@ Follows Python's [tempfile algorithm](http://docs.python.org/library/tempfile.html#tempfile.tempdir).
function _tempDir() {
var state = common.state;
if (state.tempDir) return state.tempDir; // from cache
state.tempDir = writeableDir(os.tmpdir && os.tmpdir()) || // node 0.10+
writeableDir(os.tmpDir && os.tmpDir()) || // node 0.8+
writeableDir(process.env.TMPDIR) ||
writeableDir(process.env.TEMP) ||
writeableDir(process.env.TMP) ||
writeableDir(process.env.Wimp$ScrapDir) || // RiscOS
writeableDir('C:\\TEMP') || // Windows
writeableDir('C:\\TMP') || // Windows
writeableDir('\\TEMP') || // Windows
writeableDir('\\TMP') || // Windows
writeableDir('/tmp') ||
writeableDir('/var/tmp') ||
writeableDir('/usr/tmp') ||
writeableDir('.'); // last resort
return state.tempDir;
}
module.exports = _tempDir;
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