feat/#55 bun support (#56)

* add support for bun package manager

* update readme

cmd/npm/bun.go

@@ -0,0 +1,60 @@
+package npm
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/safedep/dry/log"
+	"github.com/safedep/pmg/config"
+	"github.com/safedep/pmg/internal/analytics"
+	"github.com/safedep/pmg/internal/flows"
+	"github.com/safedep/pmg/internal/ui"
+	"github.com/safedep/pmg/packagemanager"
+	"github.com/spf13/cobra"
+)
+
+func NewBunCommand() *cobra.Command {
+	return &cobra.Command{
+		Use:                "bun [action] [package]",
+		Short:              "Guard bun package manager",
+		DisableFlagParsing: true,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			err := executeBunFlow(cmd.Context(), args)
+			if err != nil {
+				log.Errorf("Failed to execute bun flow: %s", err)
+			}
+
+			return nil
+		},
+	}
+}
+
+func executeBunFlow(ctx context.Context, args []string) error {
+	analytics.TrackCommandBun()
+	packageManager, err := packagemanager.NewNpmPackageManager(packagemanager.DefaultBunPackageManagerConfig())
+	if err != nil {
+		ui.Fatalf("Failed to create bun package manager proxy: %s", err)
+	}
+
+	config, err := config.FromContext(ctx)
+	if err != nil {
+		ui.Fatalf("Failed to get config: %s", err)
+	}
+
+	parsedCommand, err := packageManager.ParseCommand(args)
+	if err != nil {
+		return fmt.Errorf("failed to parse command: %w", err)
+	}
+
+	packageResolverConfig := packagemanager.NewDefaultNpmDependencyResolverConfig()
+	packageResolverConfig.IncludeTransitiveDependencies = config.Transitive
+	packageResolverConfig.TransitiveDepth = config.TransitiveDepth
+	packageResolverConfig.IncludeDevDependencies = config.IncludeDevDependencies
+
+	packageResolver, err := packagemanager.NewNpmDependencyResolver(packageResolverConfig)
+	if err != nil {
+		ui.Fatalf("Failed to create dependency resolver: %s", err)
+	}
+
+	return flows.Common(packageManager, packageResolver, config).Run(ctx, args, parsedCommand)
+}