Feature/db shell

.gitignore

@@ -20,3 +20,4 @@
 /.claude
 /.claude/settings.local.json
 /.claude/commands
+/tui.json

go.mod

@@ -3,16 +3,45 @@ module github.com/pixie-sh/pixie-cli
 go 1.25.1
 
 require (
+	github.com/jackc/pgx/v5 v5.9.1
+	github.com/pixie-sh/database-helpers-go v0.2.20
 	github.com/pixie-sh/errors-go v0.3.7
 	github.com/spf13/cobra v1.10.2
 	gopkg.in/yaml.v3 v3.0.1
+	modernc.org/sqlite v1.48.0
 )
 
 require (
+	github.com/chzyer/readline v1.5.1 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/go-gormigrate/gormigrate/v2 v2.1.2 // indirect
+	github.com/go-sql-driver/mysql v1.7.0 // indirect
 	github.com/goccy/go-json v0.10.5 // indirect
+	github.com/google/uuid v1.6.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
 	github.com/pixie-sh/logger-go v0.4.4 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/rogpeppe/go-internal v1.14.1 // indirect
 	github.com/spf13/pflag v1.0.9 // indirect
 	golang.org/x/crypto v0.37.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.42.0 // indirect
+	golang.org/x/term v0.41.0 // indirect
+	golang.org/x/text v0.29.0 // indirect
+	gorm.io/driver/mysql v1.5.7 // indirect
+	gorm.io/driver/postgres v1.5.7 // indirect
+	gorm.io/gorm v1.30.0 // indirect
+	gorm.io/plugin/dbresolver v1.6.0 // indirect
+	modernc.org/libc v1.70.0 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.11.0 // indirect
 )

go.sum

@@ -1,29 +1,129 @@
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 github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
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 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+modernc.org/opt v0.1.4/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
+modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
+modernc.org/sqlite v1.48.0 h1:ElZyLop3Q2mHYk5IFPPXADejZrlHu7APbpB0sF78bq4=
+modernc.org/sqlite v1.48.0/go.mod h1:hWjRO6Tj/5Ik8ieqxQybiEOUXy0NJFNp2tpvVpKlvig=
+modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
+modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
+modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

internal/cli/pixie/app/run.go

@@ -6,12 +6,21 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/pixie-sh/pixie-cli/internal/cli/pixie/db_shell_cmd"
 	"github.com/pixie-sh/pixie-cli/internal/cli/pixie/generate_cmd"
 	"github.com/pixie-sh/pixie-cli/internal/cli/pixie/init_cmd"
 	"github.com/pixie-sh/pixie-cli/internal/version"
 )
 
 func Run() {
+	rootCmd := NewRootCmd()
+
+	if err := rootCmd.Execute(); err != nil {
+		os.Exit(1)
+	}
+}
+
+func NewRootCmd() *cobra.Command {
 	rootCmd := &cobra.Command{
 		Use:     "pixie",
 		Short:   "Pixie CLI - Multi-Stack Project Generator",
@@ -24,6 +33,7 @@ func Run() {
 	rootCmd.PersistentFlags().String("env", "", "Path to environment file")
 	rootCmd.AddCommand(init_cmd.InitCmd())
 	rootCmd.AddCommand(generate_cmd.GenerateCmd())
+	rootCmd.AddCommand(db_shell_cmd.Cmd())
 	rootCmd.AddCommand(&cobra.Command{
 		Use:   "version",
 		Short: "Print version information",
@@ -32,7 +42,5 @@ func Run() {
 		},
 	})
 
-	if err := rootCmd.Execute(); err != nil {
-		os.Exit(1)
-	}
+	return rootCmd
 }

internal/cli/pixie/app/run_test.go

@@ -0,0 +1,19 @@
+package app
+
+import "testing"
+
+func TestNewRootCmdIncludesDBShell(t *testing.T) {
+	root := NewRootCmd()
+
+	found := false
+	for _, command := range root.Commands() {
+		if command.Name() == "db-shell" {
+			found = true
+			break
+		}
+	}
+
+	if !found {
+		t.Fatal("db-shell command not registered on root command")
+	}
+}

internal/cli/pixie/db_shell_cmd/command.go

@@ -0,0 +1,76 @@
+package db_shell_cmd
+
+import (
+	"os/signal"
+
+	"github.com/spf13/cobra"
+)
+
+// Cmd returns the db-shell command.
+func Cmd() *cobra.Command {
+	var opts Options
+
+	cmd := &cobra.Command{
+		Use:   "db-shell",
+		Short: "Open an interactive SQL shell through Pixie runtime abstractions",
+		Long: `Open an interactive SQL shell through Pixie runtime abstractions.
+
+Configuration precedence:
+  1. Command flags
+  2. Explicit env file values (--env), then process environment variables
+  3. Project config in .pixie.yaml or pixie.yaml under the db: section
+  4. Built-in defaults
+
+Runtime paths:
+  - Helper-backed PostgreSQL is the primary runtime path
+  - SQLite remains available for local fallback and tests
+
+Supported built-ins:
+  .help  Show available shell commands
+  .exit  Close the session
+  .quit  Close the session
+
+Examples:
+  pixie db-shell --driver sqlite --dsn "file:pixie-shell.db"
+  pixie --env .env db-shell --name app_db --user postgres
+  pixie --config .pixie.yaml db-shell --driver postgres`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			configPath, _ := cmd.InheritedFlags().GetString("config")
+			envPath, _ := cmd.InheritedFlags().GetString("env")
+
+			resolvedConfig, err := ResolveConfig(opts, resolveConfigPath(configPath), envPath, nil)
+			if err != nil {
+				return err
+			}
+
+			ctx, stop := signal.NotifyContext(cmd.Context(), interruptSignals...)
+			defer stop()
+
+			executor, err := OpenExecutor(ctx, resolvedConfig)
+			if err != nil {
+				return err
+			}
+
+			shell := Shell{
+				Executor: executor,
+				In:       cmd.InOrStdin(),
+				Out:      cmd.OutOrStdout(),
+				ErrOut:   cmd.ErrOrStderr(),
+				Prompt:   "pixie-sql> ",
+			}
+
+			return shell.Run(ctx)
+		},
+	}
+
+	cmd.Flags().StringVar(&opts.Driver, "driver", defaultPostgresDriver, "Database driver (postgres primary path; sqlite fallback/test-only)")
+	cmd.Flags().StringVar(&opts.DSN, "dsn", "", "Raw DSN/connection string (overrides host/user/name fields)")
+	cmd.Flags().StringVar(&opts.Host, "host", "", "Database host for helper-backed PostgreSQL connections")
+	cmd.Flags().IntVar(&opts.Port, "port", 0, "Database port for helper-backed PostgreSQL connections")
+	cmd.Flags().StringVar(&opts.Name, "name", "", "Database name for helper-backed PostgreSQL connections")
+	cmd.Flags().StringVar(&opts.User, "user", "", "Database user for helper-backed PostgreSQL connections")
+	cmd.Flags().StringVar(&opts.Password, "password", "", "Database password for helper-backed PostgreSQL connections")
+	cmd.Flags().StringVar(&opts.SSLMode, "sslmode", "", "SSL mode for helper-backed PostgreSQL connections")
+
+	return cmd
+}