Minor cleanups and fleshed out the wwctl overlay show command

internal/app/wwctl/build/main.go

@@ -0,0 +1,154 @@
+package build
+
+import (
+	"github.com/hpcng/warewulf/internal/pkg/assets"
+	"github.com/hpcng/warewulf/internal/pkg/kernel"
+	"github.com/hpcng/warewulf/internal/pkg/overlay"
+	"github.com/hpcng/warewulf/internal/pkg/vnfs"
+	"github.com/hpcng/warewulf/internal/pkg/wwlog"
+	"github.com/spf13/cobra"
+	"os"
+)
+
+
+func CobraRunE(cmd *cobra.Command, args []string) error {
+	var nodes []assets.NodeInfo
+	showHelp := true
+
+	if len(args) > 0 {
+		var err error
+		nodes, err = assets.SearchByName(args[0])
+		if err != nil {
+			wwlog.Printf(wwlog.ERROR, "Could not find nodes for search term: %s\n", args[0])
+			os.Exit(1)
+		}
+
+	} else {
+		var err error
+		nodes, err = assets.FindAllNodes()
+		if err != nil {
+			wwlog.Printf(wwlog.ERROR, "Could not get list of nodes: %s\n", err)
+			os.Exit(1)
+		}
+
+	}
+
+	if buildVnfs == true || buildAll == true {
+		set := make(map[string]int)
+		showHelp = false
+
+		wwlog.Printf(wwlog.INFO, "Building VNFS images...\n")
+
+		for _, node := range nodes {
+			set[node.Vnfs] ++
+		}
+		for e := range set {
+			vnfs.Build(e, buildForce)
+		}
+	}
+
+	if buildKernel == true || buildAll == true {
+		set := make(map[string]int)
+		showHelp = false
+
+		wwlog.Printf(wwlog.INFO, "Building Kernel images...\n")
+
+		for _, node := range nodes {
+			set[node.KernelVersion] ++
+		}
+		for e := range set {
+			kernel.Build(e)
+		}
+	}
+
+	if buildSystemOverlay == true || buildAll == true {
+		wwlog.Printf(wwlog.INFO, "Building System Overlays...\n")
+		showHelp = false
+
+		overlay.SystemBuild(nodes, buildForce)
+	}
+
+	if buildRuntimeOverlay == true || buildAll == true {
+		wwlog.Printf(wwlog.INFO, "Building Runtime Overlays...n")
+		showHelp = false
+
+		overlay.RuntimeBuild(nodes, buildForce)
+	}
+
+	if showHelp == true {
+		cmd.Usage()
+		os.Exit(1)
+	}
+
+	return nil
+}
+
+
+/*
+func CobraRunEA(cmd *cobra.Command, args []string) error {
+	var nodeList []assets.NodeInfo
+
+	if buildAll == true {
+		wwlog.Printf(wwlog.VERBOSE, "Building all components\n")
+		buildVnfs = true
+		buildKernel = true
+		buildSystemOverlay = true;
+		buildRuntimeOverlay = true;
+	}
+
+	if len(args) >= 1 {
+		nodeList, _ = assets.SearchByName(args[0])
+	} else {
+		nodeList, _ = assets.FindAllNodes()
+	}
+
+	if len(nodeList) == 0 {
+		wwlog.Printf(wwlog.ERROR, "No nodes found matching: '%s'\n", args[0])
+		os.Exit(255)
+	} else {
+		wwlog.Printf(wwlog.VERBOSE, "Found matching nodes for build: %d\n", len(nodeList))
+	}
+
+	if buildVnfs == true {
+//		wwlog.Printf(wwlog.INFO, "===============================================================================\n")
+
+		err := vnfs.Build(nodeList, buildForce)
+		if err != nil {
+			wwlog.Printf(wwlog.ERROR, "%s\n", err)
+			os.Exit(255)
+		}
+	}
+
+	if buildKernel == true {
+//		wwlog.Printf(wwlog.INFO, "===============================================================================\n")
+
+		err := kernel.Build(nodeList, buildForce)
+		if err != nil {
+			wwlog.Printf(wwlog.ERROR, "%s\n", err)
+			os.Exit(255)
+		}
+	}
+
+	if buildSystemOverlay == true {
+//		wwlog.Printf(wwlog.INFO, "===============================================================================\n")
+		err := system_overlay.Build(nodeList, buildForce)
+		if err != nil {
+			wwlog.Printf(wwlog.ERROR, "%s\n", err)
+			os.Exit(255)
+		}
+	}
+
+	if buildRuntimeOverlay == true {
+//		wwlog.Printf(wwlog.INFO, "===============================================================================\n")
+		err := runtime_overlay.Build(nodeList, buildForce)
+		if err != nil {
+			wwlog.Printf(wwlog.ERROR, "%s\n", err)
+			os.Exit(255)
+		}
+	}
+
+
+	return nil
+}
+
+ */