Use cobra to turn linkctl into a proper cli

Most commands are currently placeholders but version and db init work

cmd/linkctl/config.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+func configPreRun(cmd *cobra.Command, args []string) error {
+	return setupDb()
+}
+
+func configPostRun(cmd *cobra.Command, args []string) error {
+	return cleanupDb()
+}
+
+func configSetHandler(cmd *cobra.Command, args []string) {
+	fmt.Println("Not implemented")
+}
+
+func configGetHandler(cmd *cobra.Command, args []string) {
+	fmt.Println("Not implemented")
+}
+
+func configListHandler(cmd *cobra.Command, args []string) {
+	fmt.Println("Not implemented")
+}

cmd/linkctl/db.go

@@ -0,0 +1,48 @@
+package main
+
+import (
+	"fmt"
+
+	"git.omicron.one/omicron/linkshare/internal/database"
+	"git.omicron.one/omicron/linkshare/internal/util"
+	"git.omicron.one/omicron/linkshare/internal/version"
+	"github.com/spf13/cobra"
+)
+
+func openDB() (*database.DB, error) {
+	paths, err := util.FindDirectories(dbPath)
+	if err != nil {
+		return nil, err
+	}
+	return database.Open(paths.DatabaseFile)
+}
+
+func dbPreRun(cmd *cobra.Command, args []string) error {
+	return setupDb()
+}
+
+func dbPostRun(cmd *cobra.Command, args []string) error {
+	return cleanupDb()
+}
+
+func dbInitHandler(cmd *cobra.Command, args []string) {
+	err := db.Initialize(paths.SchemaDir)
+	if err == database.ErrAlreadyInitialized {
+		fmt.Printf("Database %q is already initialized\n", dbPath)
+		return
+	}
+	if err == nil {
+		fmt.Printf("Initialized database %q with schema version %d\n", dbPath, version.SchemaVersion)
+		return
+	}
+
+	fmt.Printf("Failed to initialize database %q: %v\n", dbPath, err)
+}
+
+func dbBackupHandler(cmd *cobra.Command, args []string) {
+	fmt.Println("Not implemented")
+}
+
+func dbUpdateHandler(cmd *cobra.Command, args []string) {
+	fmt.Println("Not implemented")
+}

cmd/linkctl/main.go

@@ -2,17 +2,156 @@ package main
 
 import (
 	"fmt"
+	"os"
 
+	"git.omicron.one/omicron/linkshare/internal/database"
 	"git.omicron.one/omicron/linkshare/internal/util"
+	"git.omicron.one/omicron/linkshare/internal/version"
+	"github.com/spf13/cobra"
 )
 
-func main() {
-	paths, err := util.FindDirectories("")
+var (
+	dbPath    string
+	verbosity int
+)
+
+var (
+	paths *util.AppPaths
+	db    *database.DB
+)
+
+func exitIfError(err error) {
 	if err != nil {
 		fmt.Println(err)
+		os.Exit(1)
+	}
+}
+
+func setupPaths() error {
+	if paths != nil {
+		return nil
+	}
+	paths_, err := util.FindDirectories(dbPath)
+	if err != nil {
+		return err
+	}
+	paths = paths_
+	return nil
+}
+
+func setupDb() error {
+	if db != nil {
+		return nil
+	}
+	err := setupPaths()
+	if err != nil {
+		return nil
 	}
 
-	fmt.Println("Paths:")
-	fmt.Println("  Schema:", paths.SchemaDir)
-	fmt.Println("  Database:", paths.DatabaseFile)
+	db_, err := database.Open(dbPath)
+	if err != nil {
+		return nil
+	}
+	db = db_
+	return nil
+}
+
+func cleanupDb() error {
+	if db != nil {
+		err := db.Close()
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func main() {
+	rootCmd := &cobra.Command{
+		Use:   "linkctl",
+		Short: "LinkShare CLI tool",
+		Long:  `Command line tool to manage your self-hosted LinkShare service.`,
+		Run: func(cmd *cobra.Command, args []string) {
+			cmd.Help()
+		},
+	}
+	rootCmd.CompletionOptions.DisableDefaultCmd = true
+
+	rootCmd.PersistentFlags().StringVarP(&dbPath, "db", "d", "", "Database file path")
+	rootCmd.PersistentFlags().CountVarP(&verbosity, "verbose", "v", "Increase verbosity level")
+
+	configCmd := &cobra.Command{
+		Use:   "config",
+		Short: "Configuration commands",
+		Run: func(cmd *cobra.Command, args []string) {
+			cmd.Help()
+		},
+		PersistentPreRunE:  configPreRun,
+		PersistentPostRunE: configPostRun,
+	}
+
+	configSetCmd := &cobra.Command{
+		Use:   "set",
+		Short: "Set a configuration value",
+		Run:   configSetHandler,
+	}
+
+	configGetCmd := &cobra.Command{
+		Use:   "get",
+		Short: "Get a configuration value",
+		Run:   configGetHandler,
+	}
+
+	configListCmd := &cobra.Command{
+		Use:   "list",
+		Short: "List all configuration values",
+		Run:   configListHandler,
+	}
+
+	configCmd.AddCommand(configSetCmd, configGetCmd, configListCmd)
+
+	dbCmd := &cobra.Command{
+		Use:   "db",
+		Short: "Database commands",
+		Run: func(cmd *cobra.Command, args []string) {
+			cmd.Help()
+		},
+		PersistentPreRunE:  dbPreRun,
+		PersistentPostRunE: dbPostRun,
+	}
+
+	dbInitCmd := &cobra.Command{
+		Use:   "init",
+		Short: "Initialize the database",
+		Run:   dbInitHandler,
+	}
+
+	dbBackupCmd := &cobra.Command{
+		Use:   "backup",
+		Short: "Backup the database",
+		Run:   dbBackupHandler,
+	}
+
+	dbUpdateCmd := &cobra.Command{
+		Use:   "update",
+		Short: "Update the database schema",
+		Run:   dbUpdateHandler,
+	}
+
+	dbCmd.AddCommand(dbInitCmd, dbBackupCmd, dbUpdateCmd)
+
+	versionCmd := &cobra.Command{
+		Use:   "version",
+		Short: "Display version information",
+		Run: func(cmd *cobra.Command, args []string) {
+			version.Print()
+		},
+	}
+
+	rootCmd.AddCommand(configCmd, dbCmd, versionCmd)
+
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
 }

go.mod

@@ -2,4 +2,12 @@ module git.omicron.one/omicron/linkshare
 
 go 1.24
 
-require github.com/mattn/go-sqlite3 v1.14.28
+require (
+	github.com/mattn/go-sqlite3 v1.14.28
+	github.com/spf13/cobra v1.9.1
+)
+
+require (
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.6 // indirect
+)

go.sum

@@ -1,2 +1,12 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/mattn/go-sqlite3 v1.14.28 h1:ThEiQrnbtumT+QMknw63Befp/ce/nUPgBPMlRFEum7A=
 github.com/mattn/go-sqlite3 v1.14.28/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=
+github.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=
+github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
+github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/database/manager.go

@@ -24,9 +24,10 @@ type DB struct {
 }
 
 var (
-	ErrDatabaseNotInitialized    = errors.New("database not initialized")
-	ErrDatabaseSchemaOutdated    = errors.New("database schema needs updating")
-	ErrDatabaseSchemaUnsupported = errors.New("database schema is too new for the server")
+	ErrNotInitialized     = errors.New("database not initialized")
+	ErrAlreadyInitialized = errors.New("database already initialized")
+	ErrSchemaOutdated     = errors.New("database schema needs updating")
+	ErrSchemaUnsupported  = errors.New("database schema is too new for the server")
 	ErrMigrationFailed    = errors.New("migration failed")
 )
 
@@ -65,7 +66,7 @@ func (db *DB) Close() error {
 func (db *DB) Initialize(schemaPath string) error {
 	err := db.CheckInitialized()
 	if err == nil {
-		return nil
+		return ErrAlreadyInitialized
 	}
 
 	currentSchema := filepath.Join(schemaPath, "current.sql")
@@ -91,7 +92,7 @@ func (db *DB) CheckInitialized() error {
 	}
 
 	if count == 0 {
-		return ErrDatabaseNotInitialized
+		return ErrNotInitialized
 	}
 	return nil
 }
@@ -127,9 +128,9 @@ func (db *DB) CheckSchemaVersion() error {
 		return err
 	}
 	if version_ < version.SchemaVersion {
-		return ErrDatabaseSchemaOutdated
+		return ErrSchemaOutdated
 	} else if version_ > version.SchemaVersion {
-		return ErrDatabaseSchemaUnsupported
+		return ErrSchemaUnsupported
 	}
 	return nil
 }