commit 491cc16d53c897908244606bc0d77a6ace8c22a1
Author: Ophestra Umiker <cat@ophivana.moe>
Date:   Tue Jul 9 15:39:40 2024 +0900

    cli: parse and resolve flags
    
    Copy all flags from upstream. The machinectl flag is dropped as it does nothing. the flag package is used to reduce complexity since we do not care about compatibility with upstream.
    
    Signed-off-by: Ophestra Umiker <cat@ophivana.moe>

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ae08513
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,25 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+/ego
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
+go.work.sum
+
+# env file
+.env
+.idea
+.vscode
\ No newline at end of file
diff --git a/cli.go b/cli.go
new file mode 100644
index 0000000..e85917e
--- /dev/null
+++ b/cli.go
@@ -0,0 +1,67 @@
+package main
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	"os"
+	"os/user"
+)
+
+var (
+	ego     *user.User
+	command []string
+	verbose bool
+	method  = machinectl
+
+	userName     string
+	methodFlags  [2]bool
+	printVersion bool
+)
+
+const (
+	machinectl uint8 = iota
+	machinectlBare
+	sudo
+)
+
+func init() {
+	flag.StringVar(&userName, "u", "ego", "Specify a username")
+	flag.BoolVar(&methodFlags[0], "sudo", false, "Use 'sudo' to change user")
+	flag.BoolVar(&methodFlags[1], "bare", false, "Use 'machinectl' but skip xdg-desktop-portal setup")
+	flag.BoolVar(&verbose, "v", false, "Verbose output")
+	flag.BoolVar(&printVersion, "V", false, "Print version")
+}
+
+func copyArgs() {
+	if printVersion {
+		fmt.Println(Version)
+		os.Exit(0)
+	}
+
+	command = flag.Args()
+
+	switch { // zero value is machinectl
+	case methodFlags[0]:
+		method = sudo
+	case methodFlags[1]:
+		method = machinectlBare
+	}
+
+	if u, err := user.Lookup(userName); err != nil {
+		if errors.As(err, new(user.UnknownUserError)) {
+			fmt.Println("unknown user", userName)
+		} else {
+			// unreachable
+			panic(err)
+		}
+
+		os.Exit(1)
+	} else {
+		ego = u
+	}
+
+	if verbose {
+		fmt.Println("Running command", command, "as user", ego.Username, "("+ego.Uid+")")
+	}
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..c3d7971
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module git.ophivana.moe/cat/ego
+
+go 1.22
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..159d6d7
--- /dev/null
+++ b/main.go
@@ -0,0 +1,12 @@
+package main
+
+import (
+	"flag"
+)
+
+var Version = "impure"
+
+func main() {
+	flag.Parse()
+	copyArgs()
+}