tempdir.js
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var common = require('./common');
var os = require('os');
var fs = require('fs');
// 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) {
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.tempDir && os.tempDir()) || // 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;