Lilian Jónsdóttir
9b87c02744
fix typos, less short and more idomatic variable names, package comments, etc.
29 lines
549 B
Go
29 lines
549 B
Go
// Package filemode does things io/fs doesn't do
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package filemode
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import (
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"io/fs"
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"strconv"
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)
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// Parse parses a string of 3 or 4 numbers as a *NIX filesystem permission.
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//
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// "0777" or "777" -> fs.FileMode(0777)
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//
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// "0644" or "644" -> fs.FileMode(0644)
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func Parse(input string) (fs.FileMode, error) {
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const simplemodelen = 3
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if input == "" {
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return fs.FileMode(0), nil
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}
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if len(input) == simplemodelen {
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input = "0" + input
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}
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md, e := strconv.ParseUint(input, 8, 64)
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if e != nil {
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return 0, e
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}
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return fs.FileMode(md), nil
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}
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