Documentation
¶
Overview ¶
Package cmd provides helper functions for working with the os/exec library.
Index ¶
Examples ¶
Constants ¶
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Variables ¶
This section is empty.
Functions ¶
func Output ¶
Output executes the command & returns stdout. Stderr and error exit codes are reported as the returned error.
Example ¶
tempdir, _ := ioutil.TempDir("", "example-output")
defer os.RemoveAll(tempdir)
os.MkdirAll(filepath.Join(tempdir, "sub1"), 0744)
os.MkdirAll(filepath.Join(tempdir, "sub2"), 0744)
out, _ := Output(exec.Command("ls", tempdir))
for _, k := range out {
fmt.Println(k)
}
Output: sub1 sub2
func PipeWith ¶
PipeWith executes the command & sends the provided event handler the stdout io.Reader. Errors returned from the event handler are forwarded on. Stderr and error exit codes are reported as the returned error.
Example ¶
tempdir, _ := ioutil.TempDir("", "example-pipewith")
defer os.RemoveAll(tempdir)
os.MkdirAll(filepath.Join(tempdir, "sub1"), 0744)
os.MkdirAll(filepath.Join(tempdir, "sub2"), 0744)
PipeWith(exec.Command("ls", tempdir), func(stdout io.Reader) error {
scanner := bufio.NewScanner(stdout)
for scanner.Scan() {
fmt.Println(scanner.Text())
}
return nil
})
Output: sub1 sub2
func Run ¶
Run executes the command & throws away stdout. Stderr and error exit codes are reported as the returned error.
Example ¶
tempdir, _ := ioutil.TempDir("", "example-run")
defer os.RemoveAll(tempdir)
os.MkdirAll(filepath.Join(tempdir, "sub1"), 0744)
os.MkdirAll(filepath.Join(tempdir, "sub2"), 0744)
if runErr := Run(exec.Command("ls", tempdir)); runErr != nil {
fmt.Printf("Got error %v", runErr)
}
Output:
Types ¶
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