add userPresent

ingredients/user/userPresent.go

@@ -0,0 +1,87 @@
+package user
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os/exec"
+	"os/user"
+	"strings"
+
+	"github.com/gogrlx/grlx/types"
+)
+
+func (u User) present(ctx context.Context, test bool) (types.Result, error) {
+	var result types.Result
+
+	userName, ok := u.params["name"].(string)
+	if !ok {
+		result.Failed = true
+		result.Succeeded = false
+		return result, errors.New("invalid user; name must be a string")
+	}
+
+	uid := ""
+	gid := ""
+	shell := ""
+	groups := []string{}
+	home := ""
+	if uidInter, ok := u.params["uid"]; ok {
+		uid, ok = uidInter.(string)
+	}
+	if gidInter, ok := u.params["gid"]; ok {
+		gid, ok = gidInter.(string)
+	}
+	if shellInter, ok := u.params["shell"]; ok {
+		shell, ok = shellInter.(string)
+	}
+	if groupsInter, ok := u.params["groups"]; ok {
+		groups, ok = groupsInter.([]string)
+	}
+	if homeInter, ok := u.params["home"]; ok {
+		home, ok = homeInter.(string)
+	}
+	userCmd := "usermod"
+	user, err := user.Lookup(userName)
+	if err != nil {
+		userCmd = "useradd"
+	}
+	args := []string{userName}
+	if uid != "" && uid != user.Uid {
+		args = append(args, "-u"+uid)
+	}
+	if gid != "" && gid != user.Gid {
+		args = append(args, "-g"+gid)
+	}
+	if shell != "" {
+		args = append(args, "-s"+shell)
+	}
+	if home != "" && shell != user.HomeDir {
+		args = append(args, "-d"+home)
+	}
+	if len(groups) > 0 {
+		args = append(args, "-G"+strings.Join(groups, ","))
+	}
+	cmd := exec.CommandContext(ctx, userCmd, args...)
+	if test {
+		result.Notes = append(result.Notes,
+			types.SimpleNote(fmt.Sprintf("would have updated user with command: %s", cmd.String())))
+		result.Succeeded = true
+		result.Failed = false
+		result.Changed = true
+		return result, nil
+	}
+	err = cmd.Run()
+
+	if err != nil {
+		result.Failed = true
+		result.Succeeded = false
+		result.Notes = append(result.Notes, types.SimpleNote(fmt.Sprintf("failed to update user: %s", err.Error())))
+		return result, err
+	}
+	result.Failed = false
+	result.Succeeded = true
+	result.Changed = true
+	result.Notes = append(result.Notes, types.SimpleNote(fmt.Sprintf("updated user with command: %s", cmd.String())))
+	return result, nil
+}