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package main
import (
"encoding/json"
"fmt"
"os"
"os/exec"
"time"
"github.com/urfave/cli/v2"
)
type Configuration struct {
Notify bool `json:"notify"`
Editor string `json:"editor"`
Flake string `json:"flake"`
}
var configuration Configuration
func init() {
configurationPath := os.Getenv("RUI_CONFIG")
if configurationPath == "" {
configurationPath = os.Getenv("XDG_CONFIG_HOME") + "/rui/config.json"
}
content, err := os.ReadFile(configurationPath)
if err != nil {
return
}
if err := json.Unmarshal(content, &configuration); err != nil {
return
}
}
func main() {
(&cli.App{
Name: "rui",
Usage: "Personal NixOS Flake Manager",
Description: "Personal NixOS Flake Manager",
EnableBashCompletion: true,
Authors: []*cli.Author{
{
Name: "Fuwn",
Email: "[email protected]",
},
},
Copyright: fmt.Sprintf("Copyright (c) 2024-%s Fuwn", fmt.Sprint(time.Now().Year())),
ExitErrHandler: func(c *cli.Context, err error) {
if err != nil {
fmt.Println(err)
}
},
Suggest: true,
Commands: []*cli.Command{
{
Name: "hs",
Action: func(c *cli.Context) error {
return c.App.Command("home").Command("switch").Run(c)
},
Hidden: true,
Description: "Alias for `home switch`",
},
{
Name: "osw",
Action: func(c *cli.Context) error {
return c.App.Command("os").Command("switch").Run(c)
},
Hidden: true,
Usage: "Alias for `os switch`",
},
{
Name: "home",
Subcommands: []*cli.Command{
{
Name: "switch",
Aliases: []string{"sw"},
Flags: []cli.Flag{
&cli.BoolFlag{
Name: "force-home-manager",
},
&cli.StringFlag{
Name: "user",
},
},
Action: func(c *cli.Context) error {
nh, err := exec.LookPath("nh")
extraArgs := c.Args().Slice()
if err := notify("Queued home switch"); err != nil {
return err
}
if err == nil && !c.Bool("force-home-manager") {
err = command(nh, append([]string{"home", "switch", "--"},
extraArgs...)...)
} else {
user := c.String("user")
if user == "" {
user = os.Getenv("USER")
}
flake := configuration.Flake
if flake == "" {
flake = os.Getenv("FLAKE")
}
err = command("home-manager", append([]string{"switch",
"--flake", fmt.Sprintf("%s#%s", flake, user)},
extraArgs...)...)
}
if err != nil {
return notify(fmt.Sprintf("Failed to switch home: %s", err.Error()))
}
return notify("Home switched")
},
},
{
Name: "news",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "user",
},
},
Action: func(c *cli.Context) error {
flake := configuration.Flake
extraArgs := c.Args().Slice()
if flake == "" {
flake = os.Getenv("FLAKE")
}
if user := c.String("user"); user != "" {
flake = fmt.Sprintf("%s#%s", flake, user)
}
return command("home-manager", append([]string{"news", "--flake",
flake}, extraArgs...)...)
},
},
},
},
{
Name: "os",
Subcommands: []*cli.Command{
{
Name: "switch",
Aliases: []string{"sw"},
Flags: []cli.Flag{
&cli.BoolFlag{
Name: "force-nixos-rebuild",
},
&cli.StringFlag{
Name: "hostname",
},
},
Action: func(c *cli.Context) error {
nh, err := exec.LookPath("nh")
if err := notify("Queued OS switch"); err != nil {
return err
}
if err == nil && !c.Bool("force-nixos-rebuild") {
err = command(nh, "os", "switch")
} else {
escalator := "sudo"
if doas, err := exec.LookPath("doas"); err != nil {
escalator = doas
}
hostname := c.String("hostname")
if hostname == "" {
hostname, err = os.Hostname()
if err != nil {
return err
}
}
flake := configuration.Flake
if flake == "" {
flake = os.Getenv("FLAKE")
}
err = command(escalator, "nixos-rebuild", "switch", "--flake",
fmt.Sprintf("%s#%s", flake, hostname))
}
if err != nil {
return notify(fmt.Sprintf("Failed to switch OS: %s", err.Error()))
}
return notify("OS switched")
},
},
},
},
{
Name: "edit",
Action: func(c *cli.Context) error {
var found bool
editor := configuration.Editor
flake := configuration.Flake
if flake == "" {
flake = os.Getenv("FLAKE")
}
if editor == "" {
if editor, found = os.LookupEnv("FLAKE_EDITOR"); !found {
editor = os.Getenv("EDITOR")
}
}
return command(editor, flake)
},
},
},
}).Run(os.Args)
}
func command(name string, args ...string) error {
cmd := exec.Command(name, args...)
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
return cmd.Run()
}
func notify(message string) error {
notifySend, err := exec.LookPath("notify-send")
if err != nil {
return nil
}
if configuration.Notify {
return command(notifySend, "Rui", message)
}
return nil
}
|