pm/cmd/pm/main.go

86 lines
1.7 KiB
Go

package main
import (
"bufio"
"fmt"
"os"
"mcquay.me/pm/keyring"
)
const usage = `pm: simple, cross-platform system package manager
subcommands:
environ (env) -- print environment information
keyring (key) -- interact with pm's OpenPGP keyring
`
const keyUsage = `pm keyring: interact with pm's OpenPGP keyring
subcommands:
create (c) -- create a fresh keypair
list (ls) -- list configured key info
`
func main() {
if len(os.Args) < 2 {
fatalf("pm: missing subcommand\n\n%v", usage)
}
cmd := os.Args[1]
root := os.Getenv("PM_ROOT")
if root == "" {
root = "/usr/local"
}
switch cmd {
case "env", "environ":
fmt.Printf("PM_ROOT=%q\n", root)
case "key", "keyring":
if len(os.Args[1:]) < 2 {
fatalf("pm keyring: insufficient args\n\nusage: %v", keyUsage)
}
sub := os.Args[2]
switch sub {
case "ls", "list":
if err := keyring.ListKeys(root, os.Stdout); err != nil {
fatalf("listing keypair: %v\n", err)
}
case "c", "create":
var name, email string
s := bufio.NewScanner(os.Stdin)
fmt.Printf("name: ")
s.Scan()
if err := s.Err(); err != nil {
fatalf("reading name: %v\n", err)
}
name = s.Text()
fmt.Printf("email: ")
s.Scan()
if err := s.Err(); err != nil {
fatalf("reading email: %v\n", err)
}
email = s.Text()
if err := os.Stdin.Close(); err != nil {
fatalf("%v\n", err)
}
if err := keyring.NewKeyPair(root, name, email); err != nil {
fatalf("creating keypair: %v\n", err)
}
default:
fatalf("unknown keyring subcommand: %q\n\nusage: %v", sub, keyUsage)
}
default:
fatalf("uknown subcommand %q\n\nusage: %v", cmd, usage)
}
}
func fatalf(f string, args ...interface{}) {
fmt.Fprintf(os.Stderr, f, args...)
os.Exit(1)
}