godotenv/cmd/cmd.go
John Barton (joho) 8c38c298ed Get the minimum viable of the command working.
Stripped debug code out
Tidied up some flag handling
Get it working with and without the -f flag.
2014-09-21 10:42:05 +10:00

61 lines
1.2 KiB
Go

package main
import (
"flag"
"fmt"
"os"
"os/exec"
"strings"
"github.com/joho/godotenv"
)
func main() {
var showHelp bool
flag.BoolVar(&showHelp, "h", false, "show help")
var rawEnvFilenames string
flag.StringVar(&rawEnvFilenames, "f", "", "comma separated paths to .env files")
flag.Parse()
usage := `
Run a process with a env setup from a .env file
godotenv [-f ENV_FILE_PATHS] COMMAND_ARGS
ENV_FILE_PATHS: comma separated paths to .env files
COMMAND_ARGS: command and args you want to run
example
godotenv -f /path/to/something/.env,/another/path/.env fortune
`
// if no args or -h flag
// print usage and return
args := flag.Args()
if showHelp || len(args) == 0 {
fmt.Println(usage)
return
}
// load env
// TODO would be nicer for an empty rawEnvFilenames to give us an empty map
// and then only call Load() once
// other TODO error handling on Load()
if rawEnvFilenames == "" {
godotenv.Load()
} else {
envFilenames := strings.Split(rawEnvFilenames, ",")
godotenv.Load(envFilenames...)
}
// take rest of args and "exec" them
cmd := args[0]
cmdArgs := args[1:len(args)]
command := exec.Command(cmd, cmdArgs...)
command.Stdin = os.Stdin
command.Stdout = os.Stdout
command.Stderr = os.Stderr
command.Start()
}