add profile edit (copy&paste) from node edit

internal/app/wwctl/profile/edit/main.go

@@ -0,0 +1,115 @@
+package edit
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"strings"
+
+	apiprofile "github.com/hpcng/warewulf/internal/pkg/api/profile"
+	"github.com/hpcng/warewulf/internal/pkg/api/routes/wwapiv1"
+	apiutil "github.com/hpcng/warewulf/internal/pkg/api/util"
+	"github.com/hpcng/warewulf/internal/pkg/node"
+	"github.com/hpcng/warewulf/internal/pkg/util"
+	"github.com/hpcng/warewulf/internal/pkg/wwlog"
+	"github.com/spf13/cobra"
+	"gopkg.in/yaml.v2"
+)
+
+func CobraRunE(cmd *cobra.Command, args []string) error {
+	canWrite := apiutil.CanWriteConfig()
+	if !canWrite.CanWriteConfig {
+		wwlog.Error("Can't write to config exiting")
+		os.Exit(1)
+	}
+	editor := os.Getenv("EDITOR")
+	if editor == "" {
+		editor = "/bin/vi"
+	}
+	if len(args) == 0 {
+		args = append(args, ".*")
+	}
+	filterList := wwapiv1.NodeList{
+		Output: args,
+	}
+	profileListMsg := apiprofile.FilteredProfiles(&filterList)
+	profileMap := make(map[string]*node.NodeConf)
+	// got proper yaml back
+	_ = yaml.Unmarshal([]byte(profileListMsg.NodeConfMapYaml), profileMap)
+	file, err := ioutil.TempFile("/tmp", "ww4ProfileEdit*.yaml")
+	if err != nil {
+		wwlog.Error("Could not create temp file:%s \n", err)
+	}
+	defer os.Remove(file.Name())
+	nodeConf := node.NewConf()
+	yamlTemplate := nodeConf.UnmarshalConf([]string{"tagsdel"})
+	for {
+		_ = file.Truncate(0)
+		_, _ = file.Seek(0, 0)
+		if !NoHeader {
+			_, _ = file.WriteString("#profilename:\n#  " + strings.Join(yamlTemplate, "\n#  ") + "\n")
+		}
+		_, _ = file.WriteString(profileListMsg.NodeConfMapYaml)
+		_, _ = file.Seek(0, 0)
+		hasher := sha256.New()
+		if _, err := io.Copy(hasher, file); err != nil {
+			wwlog.Error("Problems getting checksum of file %s\n", err)
+		}
+		sum1 := hex.EncodeToString(hasher.Sum(nil))
+		err = util.ExecInteractive(editor, file.Name())
+		if err != nil {
+			wwlog.Error("Editor process existed with non-zero\n")
+			os.Exit(1)
+		}
+		_, _ = file.Seek(0, 0)
+		hasher.Reset()
+		if _, err := io.Copy(hasher, file); err != nil {
+			wwlog.Error("Problems getting checksum of file %s\n", err)
+		}
+		sum2 := hex.EncodeToString(hasher.Sum(nil))
+		wwlog.Debug("Hashes are before %s and after %s\n", sum1, sum2)
+		if sum1 != sum2 {
+			wwlog.Debug("Nodes were modified")
+			modifiedProfileMap := make(map[string]*node.NodeConf)
+			_, _ = file.Seek(0, 0)
+			// ignore error as only may occurs under strange circumstances
+			buffer, _ := io.ReadAll(file)
+			err = yaml.Unmarshal(buffer, modifiedProfileMap)
+			if err == nil {
+				nodeList := make([]string, len(profileMap))
+				i := 0
+				for key := range profileMap {
+					nodeList[i] = key
+					i++
+				}
+				yes := apiutil.ConfirmationPrompt(fmt.Sprintf("Are you sure you want to modify %d nodes", len(modifiedProfileMap)))
+				if !yes {
+					break
+				}
+				err = apiprofile.ProfileDelete(&wwapiv1.NodeDeleteParameter{NodeNames: nodeList, Force: true})
+				if err != nil {
+					wwlog.Verbose("Problem deleting nodes before modification %s")
+				}
+				buffer, _ = yaml.Marshal(modifiedProfileMap)
+				err = apiprofile.ProfileAddFromYaml(&wwapiv1.NodeYaml{NodeConfMapYaml: string(buffer)})
+				if err != nil {
+					wwlog.Error("Got following problem when writing back yaml: %s", err)
+					os.Exit(1)
+				}
+				break
+			} else {
+				yes := apiutil.ConfirmationPrompt(fmt.Sprintf("Got following error on parsing: %s, Retry", err))
+				if !yes {
+					break
+				}
+			}
+		} else {
+			break
+		}
+	}
+
+	return nil
+}

internal/app/wwctl/profile/edit/root.go

@@ -0,0 +1,38 @@
+package edit
+
+import (
+	"github.com/hpcng/warewulf/internal/pkg/node"
+	"github.com/spf13/cobra"
+)
+
+var (
+	baseCmd = &cobra.Command{
+		DisableFlagsInUseLine: true,
+		Use:                   "edit [OPTIONS] NODENAME",
+		Short:                 "Edit node(s) with editor",
+		Long:                  "This command opens an editor for the given profiles.",
+		RunE:                  CobraRunE,
+		ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+			if len(args) != 0 {
+				return nil, cobra.ShellCompDirectiveNoFileComp
+			}
+			nodeDB, _ := node.New()
+			profiles, _ := nodeDB.FindAllProfiles()
+			var p_names []string
+			for _, profile := range profiles {
+				p_names = append(p_names, profile.Id.Get())
+			}
+			return p_names, cobra.ShellCompDirectiveNoFileComp
+		},
+	}
+	NoHeader bool
+)
+
+func init() {
+	baseCmd.PersistentFlags().BoolVar(&NoHeader, "noheader", false, "Do not print header")
+}
+
+// GetRootCommand returns the root cobra.Command for the application.
+func GetCommand() *cobra.Command {
+	return baseCmd
+}