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