124 lines
3.7 KiB
Go
124 lines
3.7 KiB
Go
package edit
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import (
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"fmt"
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"github.com/hpcng/warewulf/internal/pkg/assets"
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"github.com/hpcng/warewulf/internal/pkg/config"
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"github.com/hpcng/warewulf/internal/pkg/overlay"
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"github.com/hpcng/warewulf/internal/pkg/util"
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"github.com/hpcng/warewulf/internal/pkg/wwlog"
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"github.com/spf13/cobra"
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"os"
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"path"
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"path/filepath"
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)
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func CobraRunE(cmd *cobra.Command, args []string) error {
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config := config.New()
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editor := config.Editor
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var overlaySourceDir string
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if SystemOverlay == true {
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overlaySourceDir = config.SystemOverlaySource(args[0])
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} else {
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overlaySourceDir = config.RuntimeOverlaySource(args[0])
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}
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if util.IsDir(overlaySourceDir) == false {
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wwlog.Printf(wwlog.ERROR, "Overlay does not exist: %s\n", args[0])
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os.Exit(1)
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}
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overlayFile := path.Join(overlaySourceDir, args[1])
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wwlog.Printf(wwlog.DEBUG, "Will edit overlay file: %s\n", overlayFile)
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if CreateDirs == true {
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err := os.MkdirAll(path.Dir(overlayFile), 0755)
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "Could not create directory: %s\n", path.Dir(overlayFile))
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os.Exit(1)
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}
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} else {
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if util.IsDir(path.Dir(overlayFile)) == false {
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wwlog.Printf(wwlog.ERROR, "Can not create file, parent directory does not exist, try adding the\n")
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wwlog.Printf(wwlog.ERROR, "'--parents' option to create the directory.\n")
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os.Exit(1)
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}
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}
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if util.IsFile(overlayFile) == false && filepath.Ext(overlayFile) == ".ww" {
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wwlog.Printf(wwlog.WARN, "This is a new file, creating some default content\n")
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w, err := os.OpenFile(overlayFile, os.O_RDWR|os.O_CREATE, os.FileMode(PermMode))
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if err != nil {
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wwlog.Printf(wwlog.WARN, "Could not create file for writing: %s\n", err)
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}
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fmt.Fprintf(w, "# This is a Warewulf Template file.\n")
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fmt.Fprintf(w, "#\n")
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fmt.Fprintf(w, "# This file (suffix '.ww') will be automatically rewritten without the suffix\n")
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fmt.Fprintf(w, "# when the overlay is rendered for the individual nodes. Here are some examples\n")
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fmt.Fprintf(w, "# of macros and logic which can be used within this file:\n")
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fmt.Fprintf(w, "#\n")
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fmt.Fprintf(w, "# Node FQDN = {{.Fqdn}}\n")
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fmt.Fprintf(w, "# Node Group = {{.GroupName}}\n")
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fmt.Fprintf(w, "# Network Config = {{.NetDevs.eth0.Ipaddr}}, {{.NetDevs.eth0.Hwaddr}}, etc.\n")
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fmt.Fprintf(w, "#\n")
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fmt.Fprintf(w, "# Goto the documentation pages for more information: http://www.hpcng.org/...\n")
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fmt.Fprintf(w, "\n")
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}
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shasum1, err := util.ShaSumFile(overlayFile)
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if err != nil {
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wwlog.Printf(wwlog.WARN, "Could not open overlay file for checksum: %s\n", err)
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}
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err = util.ExecInteractive(editor, overlayFile)
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "Editor process existed with non-zero\n")
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os.Exit(1)
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}
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wwlog.Printf(wwlog.INFO, "Updated: %s %s\n", args[0], args[1] )
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shasum2, err := util.ShaSumFile(overlayFile)
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if err != nil {
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wwlog.Printf(wwlog.WARN, "Could not open overlay file for checksum: %s\n", err)
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}
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if shasum1 == shasum2 {
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wwlog.Printf(wwlog.VERBOSE, "Not updating overlays, no file change\n")
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NoOverlayUpdate = true
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}
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if NoOverlayUpdate == false {
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nodes, err := assets.FindAllNodes()
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "Cloud not get nodeList: %s\n", err)
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os.Exit(1)
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}
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var updateNodes []assets.NodeInfo
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for _, node := range nodes {
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if SystemOverlay == true && node.SystemOverlay == args[0] {
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updateNodes = append(updateNodes, node)
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} else if node.RuntimeOverlay == args[0] {
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updateNodes = append(updateNodes, node)
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}
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}
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if SystemOverlay == true {
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wwlog.Printf(wwlog.INFO, "Updating System Overlays...\n")
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return overlay.SystemBuild(updateNodes, true)
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} else {
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wwlog.Printf(wwlog.INFO, "Updating Runtime Overlays...\n")
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return overlay.RuntimeBuild(updateNodes, true)
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}
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}
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return nil
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}
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