feat: upgrade support

Fixes #56

cmd/cardano-up/install.go

@@ -42,7 +42,7 @@ func installCommand() *cobra.Command {
 				return errors.New("no package provided")
 			}
 			if len(args) > 1 {
-				return errors.New("only one package may be specified a a time")
+				return errors.New("only one package may be specified at a time")
 			}
 			return nil
 		},

cmd/cardano-up/main.go

@@ -70,6 +70,7 @@ func main() {
 		infoCommand(),
 		installCommand(),
 		uninstallCommand(),
+		upgradeCommand(),
 	)
 
 	if err := rootCmd.Execute(); err != nil {

cmd/cardano-up/uninstall.go

@@ -15,6 +15,7 @@
 package main
 
 import (
+	"errors"
 	"fmt"
 	"log/slog"
 	"os"
@@ -27,15 +28,16 @@ func uninstallCommand() *cobra.Command {
 	return &cobra.Command{
 		Use:   "uninstall",
 		Short: "Uninstall package",
-		Run: func(cmd *cobra.Command, args []string) {
+		Args: func(cmd *cobra.Command, args []string) error {
 			if len(args) == 0 {
-				slog.Error("no package provided")
-				os.Exit(1)
+				return errors.New("no package provided")
 			}
 			if len(args) > 1 {
-				slog.Error("only one package may be specified a a time")
-				os.Exit(1)
+				return errors.New("only one package may be specified at a time")
 			}
+			return nil
+		},
+		Run: func(cmd *cobra.Command, args []string) {
 			pm, err := pkgmgr.NewDefaultPackageManager()
 			if err != nil {
 				slog.Error(fmt.Sprintf("failed to create package manager: %s", err))

cmd/cardano-up/upgrade.go

@@ -0,0 +1,54 @@
+// Copyright 2024 Blink Labs Software
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"errors"
+	"fmt"
+	"log/slog"
+	"os"
+
+	"github.com/blinklabs-io/cardano-up/pkgmgr"
+	"github.com/spf13/cobra"
+)
+
+func upgradeCommand() *cobra.Command {
+	upgradeCmd := &cobra.Command{
+		Use:   "upgrade",
+		Short: "Upgrade package",
+		Args: func(cmd *cobra.Command, args []string) error {
+			if len(args) == 0 {
+				return errors.New("no package provided")
+			}
+			if len(args) > 1 {
+				return errors.New("only one package may be specified at a time")
+			}
+			return nil
+		},
+		Run: func(cmd *cobra.Command, args []string) {
+			pm, err := pkgmgr.NewDefaultPackageManager()
+			if err != nil {
+				slog.Error(fmt.Sprintf("failed to create package manager: %s", err))
+				os.Exit(1)
+			}
+			// Upgrade requested package
+			if err := pm.Upgrade(args[0]); err != nil {
+				slog.Error(err.Error())
+				os.Exit(1)
+			}
+		},
+	}
+	return upgradeCmd
+}

pkgmgr/error.go

@@ -97,3 +97,10 @@ func NewPackageUninstallWouldBreakDepsError(uninstallPkgName string, uninstallPk
 		dependentPkgVersion,
 	)
 }
+
+func NewNoPackageAvailableForUpgrade(pkgSpec string) error {
+	return fmt.Errorf(
+		"no package available for upgrade: %s",
+		pkgSpec,
+	)
+}

pkgmgr/installed_package.go

@@ -33,3 +33,7 @@ func NewInstalledPackage(pkg Package, context string, postInstallNotes string) I
 		PostInstallNotes: postInstallNotes,
 	}
 }
+
+func (i InstalledPackage) IsEmpty() bool {
+	return i.InstalledTime.IsZero()
+}

pkgmgr/pkgmgr.go

@@ -108,6 +108,7 @@ func (p *PackageManager) Install(pkgs ...string) error {
 	resolver, err := NewResolver(
 		p.InstalledPackages(),
 		p.AvailablePackages(),
+		activeContextName,
 		p.config.Logger,
 	)
 	if err != nil {
@@ -160,6 +161,73 @@ func (p *PackageManager) Install(pkgs ...string) error {
 	return nil
 }
 
+func (p *PackageManager) Upgrade(pkgs ...string) error {
+	activeContextName, _ := p.ActiveContext()
+	resolver, err := NewResolver(
+		p.InstalledPackages(),
+		p.AvailablePackages(),
+		activeContextName,
+		p.config.Logger,
+	)
+	if err != nil {
+		return err
+	}
+	upgradePkgs, err := resolver.Upgrade(pkgs...)
+	if err != nil {
+		return err
+	}
+	var installedPkgs []string
+	var notesOutput string
+	for _, upgradePkg := range upgradePkgs {
+		p.config.Logger.Info(
+			fmt.Sprintf(
+				"Upgrading package %s (%s => %s)",
+				upgradePkg.Installed.Package.Name,
+				upgradePkg.Installed.Package.Version,
+				upgradePkg.Upgrade.Version,
+			),
+		)
+		// Uninstall old version
+		if err := p.uninstallPackage(upgradePkg.Installed); err != nil {
+			return err
+		}
+		// Install new version
+		notes, err := upgradePkg.Upgrade.install(p.config, activeContextName)
+		if err != nil {
+			return err
+		}
+		installedPkg := NewInstalledPackage(upgradePkg.Upgrade, activeContextName, notes)
+		p.state.InstalledPackages = append(p.state.InstalledPackages, installedPkg)
+		if err := p.state.Save(); err != nil {
+			return err
+		}
+		installedPkgs = append(installedPkgs, upgradePkg.Upgrade.Name)
+		if notes != "" {
+			notesOutput += fmt.Sprintf(
+				"\nPost-install notes for %s (= %s):\n\n%s\n",
+				upgradePkg.Upgrade.Name,
+				upgradePkg.Upgrade.Version,
+				notes,
+			)
+		}
+		if err := p.state.Save(); err != nil {
+			return err
+		}
+	}
+	// Display post-install notes
+	if notesOutput != "" {
+		p.config.Logger.Info(notesOutput)
+	}
+	p.config.Logger.Info(
+		fmt.Sprintf(
+			"Successfully upgraded/installed package(s) in context %q: %s",
+			activeContextName,
+			strings.Join(installedPkgs, ", "),
+		),
+	)
+	return nil
+}
+
 func (p *PackageManager) Uninstall(pkgs ...string) error {
 	// Find installed packages
 	activeContextName, _ := p.ActiveContext()
@@ -185,6 +253,7 @@ func (p *PackageManager) Uninstall(pkgs ...string) error {
 	resolver, err := NewResolver(
 		p.InstalledPackages(),
 		p.AvailablePackages(),
+		activeContextName,
 		p.config.Logger,
 	)
 	if err != nil {
@@ -194,21 +263,9 @@ func (p *PackageManager) Uninstall(pkgs ...string) error {
 		return err
 	}
 	for _, uninstallPkg := range uninstallPkgs {
-		// Uninstall package
-		if err := uninstallPkg.Package.uninstall(p.config, uninstallPkg.Context); err != nil {
+		if err := p.uninstallPackage(uninstallPkg); err != nil {
 			return err
 		}
-		// Remove package from installed packages
-		var tmpInstalledPackages []InstalledPackage
-		for _, tmpInstalledPkg := range p.state.InstalledPackages {
-			if tmpInstalledPkg.Context == uninstallPkg.Context &&
-				tmpInstalledPkg.Package.Name == uninstallPkg.Package.Name &&
-				tmpInstalledPkg.Package.Version == uninstallPkg.Package.Version {
-				continue
-			}
-			tmpInstalledPackages = append(tmpInstalledPackages, tmpInstalledPkg)
-		}
-		p.state.InstalledPackages = tmpInstalledPackages[:]
 		if err := p.state.Save(); err != nil {
 			return err
 		}
@@ -269,6 +326,25 @@ func (p *PackageManager) Info(pkgs ...string) error {
 	return nil
 }
 
+func (p *PackageManager) uninstallPackage(uninstallPkg InstalledPackage) error {
+	// Uninstall package
+	if err := uninstallPkg.Package.uninstall(p.config, uninstallPkg.Context); err != nil {
+		return err
+	}
+	// Remove package from installed packages
+	var tmpInstalledPackages []InstalledPackage
+	for _, tmpInstalledPkg := range p.state.InstalledPackages {
+		if tmpInstalledPkg.Context == uninstallPkg.Context &&
+			tmpInstalledPkg.Package.Name == uninstallPkg.Package.Name &&
+			tmpInstalledPkg.Package.Version == uninstallPkg.Package.Version {
+			continue
+		}
+		tmpInstalledPackages = append(tmpInstalledPackages, tmpInstalledPkg)
+	}
+	p.state.InstalledPackages = tmpInstalledPackages[:]
+	return nil
+}
+
 func (p *PackageManager) Contexts() map[string]Context {
 	return p.state.Contexts
 }

pkgmgr/registry.go

@@ -98,6 +98,11 @@ docker run --rm -ti ghcr.io/blinklabs-io/mithril-client:0.7.0-1 $@
 		Version:          "1.0.2",
 		PostInstallNotes: "Notes for {{ .Package.Name }}",
 	},
+	{
+		Name:             "test-packageA",
+		Version:          "1.0.3",
+		PostInstallNotes: "Notes for {{ .Package.Name }}",
+	},
 	{
 		Name:    "test-packageA",
 		Version: "2.1.3",