mirror of
https://github.com/mickael-menu/zk
synced 2024-11-17 09:25:44 +00:00
36 lines
707 B
Go
36 lines
707 B
Go
package os
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import (
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"bufio"
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"io/ioutil"
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"os"
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"github.com/mickael-menu/zk/util/opt"
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)
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// ReadStdinPipe returns the content of any piped input.
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func ReadStdinPipe() (opt.String, error) {
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fi, err := os.Stdin.Stat()
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if err != nil {
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return opt.NullString, err
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}
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if fi.Mode()&os.ModeNamedPipe == 0 {
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// Not a pipe
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return opt.NullString, nil
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}
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reader := bufio.NewReader(os.Stdin)
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bytes, err := ioutil.ReadAll(reader)
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if err != nil {
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return opt.NullString, err
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}
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return opt.NewNotEmptyString(string(bytes)), nil
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}
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// Getenv returns an optional String for the environment variable with given
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// key.
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func GetOptEnv(key string) opt.String {
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return opt.NewNotEmptyString(os.Getenv(key))
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}
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