feat: Initial commit

1 files changed, 176 insertions, 0 deletions

diff --git a/internal/cli/cli.go b/internal/cli/cli.go
new file mode 100644
index 0000000..1ab54b2
--- /dev/null
+++ b/internal/cli/cli.go
@@ -0,0 +1,176 @@
+package cli
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/ebisu/mugi/internal/remote"
+)
+
+type Command struct {
+	Operation  remote.Operation
+	Repo       string
+	Remotes    []string
+	ConfigPath string
+	Verbose    bool
+	Help       bool
+	Version    bool
+}
+
+var ErrUnknownCommand = errors.New("unknown command")
+
+func Parse(args []string) (Command, error) {
+	cmd := Command{
+		Remotes: []string{remote.All},
+	}
+
+	if len(args) == 0 {
+		cmd.Help = true
+
+		return cmd, nil
+	}
+
+	args, cmd.ConfigPath = extractConfigFlag(args)
+	args, cmd.Verbose = extractVerboseFlag(args)
+
+	for _, arg := range args {
+		if arg == "-h" || arg == "--help" || arg == "help" {
+			cmd.Help = true
+
+			return cmd, nil
+		}
+
+		if arg == "-v" || arg == "--version" || arg == "version" {
+			cmd.Version = true
+
+			return cmd, nil
+		}
+	}
+
+	if len(args) == 0 {
+		cmd.Help = true
+
+		return cmd, nil
+	}
+
+	switch args[0] {
+	case "pull":
+		cmd.Operation = remote.Pull
+	case "push":
+		cmd.Operation = remote.Push
+	case "fetch":
+		cmd.Operation = remote.Fetch
+	default:
+		return cmd, fmt.Errorf("%w: %s", ErrUnknownCommand, args[0])
+	}
+
+	remaining := args[1:]
+
+	if len(remaining) == 0 {
+		cmd.Repo = remote.All
+
+		return cmd, nil
+	}
+
+	cmd.Repo = remaining[0]
+	remaining = remaining[1:]
+
+	if len(remaining) > 0 {
+		cmd.Remotes = remaining
+	}
+
+	return cmd, nil
+}
+
+func Usage() string {
+	return `Mugi - Personal Multi-Git Remote Manager
+
+Usage:
+  mugi [flags] <command> [repo] [remotes...]
+
+Commands:
+  pull    Pull from remote(s)
+  push    Push to remote(s)
+  fetch   Fetch from remote(s)
+  help    Show this help
+  version Show version
+
+Flags:
+  -c, --config <path>  Override config file path
+  -V, --verbose        Show detailed output
+
+Examples:
+  mugi pull                      Pull all repositories from all remotes
+  mugi pull windmark             Pull Windmark from all remotes
+  mugi pull windmark github      Pull Windmark from GitHub only
+  mugi push windmark gh cb       Push Windmark to GitHub and Codeberg
+  mugi fetch gemrest/september   Fetch specific repository
+  mugi -c ./test.yaml pull       Use custom config
+
+Config: ` + configPath()
+}
+
+func configPath() string {
+	xdg := os.Getenv("XDG_CONFIG_HOME")
+
+	if xdg == "" {
+		home, _ := os.UserHomeDir()
+
+		return home + "/.config/mugi/config.yaml"
+	}
+
+	return xdg + "/mugi/config.yaml"
+}
+
+func extractConfigFlag(args []string) ([]string, string) {
+	var remaining []string
+	var configPath string
+
+	for i := 0; i < len(args); i++ {
+		arg := args[i]
+
+		if arg == "-c" || arg == "--config" {
+			if i+1 < len(args) {
+				configPath = args[i+1]
+				i++
+			}
+
+			continue
+		}
+
+		if v, ok := strings.CutPrefix(arg, "--config="); ok {
+			configPath = v
+
+			continue
+		}
+
+		if v, ok := strings.CutPrefix(arg, "-c"); ok && v != "" {
+			configPath = v
+
+			continue
+		}
+
+		remaining = append(remaining, arg)
+	}
+
+	return remaining, configPath
+}
+
+func extractVerboseFlag(args []string) ([]string, bool) {
+	var remaining []string
+	var verbose bool
+
+	for _, arg := range args {
+		if arg == "-V" || arg == "--verbose" {
+			verbose = true
+
+			continue
+		}
+
+		remaining = append(remaining, arg)
+	}
+
+	return remaining, verbose
+}