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Expand environment vars for commands

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This commit is contained in:
Alex Yatskov 2015-07-02 17:47:41 +09:00
parent bcb06d99ce
commit 57cee5f1e2
1 changed files with 10 additions and 5 deletions
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15
command.go
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@ -32,10 +32,13 @@ import (
type command []string
func (c command) expandEnv() {
for index, value := range c {
c[index] = os.ExpandEnv(value)
func (c command) expandEnv() []string {
var args []string
for _, value := range c {
args = append(args, os.ExpandEnv(value))
}
return args
}
func (c command) process(dir string, flags int) error {
@ -43,14 +46,16 @@ func (c command) process(dir string, flags int) error {
return fmt.Errorf("command element is invalid")
}
cmd := exec.Command(c[0], c[1:]...)
args := c.expandEnv()
cmd := exec.Command(args[0], args[1:]...)
cmd.Dir = dir
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
cmd.Stdin = os.Stdin
if flags&flagVerbose == flagVerbose {
log.Printf("executing command %s", strings.Join(c, " "))
log.Printf("executing command %s", strings.Join(args, " "))
}
return cmd.Run()