a97c204f53
By default, uses `runtime.NumCPU()` The default value is rendered in the generated man pages, which made their content dependent on build system characteristics. Signed-off-by: Jonathon Anderson <janderson@ciq.com>
87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
package build
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"runtime"
|
|
"strings"
|
|
"syscall"
|
|
|
|
"github.com/spf13/cobra"
|
|
"github.com/warewulf/warewulf/internal/pkg/hostlist"
|
|
"github.com/warewulf/warewulf/internal/pkg/node"
|
|
"github.com/warewulf/warewulf/internal/pkg/overlay"
|
|
)
|
|
|
|
func CobraRunE(cmd *cobra.Command, args []string) error {
|
|
nodeDB, err := node.New()
|
|
if err != nil {
|
|
return fmt.Errorf("could not open node configuration: %s", err)
|
|
}
|
|
|
|
allNodes, err := nodeDB.FindAllNodes()
|
|
if err != nil {
|
|
return fmt.Errorf("could not get node list: %s", err)
|
|
}
|
|
|
|
var filteredNodes []node.Node
|
|
if len(args) > 0 {
|
|
args = hostlist.Expand(args)
|
|
filteredNodes = node.FilterNodeListByName(allNodes, args)
|
|
|
|
if len(filteredNodes) < len(args) {
|
|
return errors.New("failed to find nodes")
|
|
}
|
|
} else {
|
|
filteredNodes = allNodes
|
|
}
|
|
|
|
// NOTE: this is to keep backward compatible
|
|
// passing -O a,b,c versus -O a -O b -O c, but will also accept -O a,b -O c
|
|
overlayNames := []string{}
|
|
for _, name := range OverlayNames {
|
|
names := strings.Split(name, ",")
|
|
overlayNames = append(overlayNames, names...)
|
|
}
|
|
OverlayNames = overlayNames
|
|
|
|
if OverlayDir != "" {
|
|
if len(OverlayNames) == 0 {
|
|
// TODO: should this behave the same as OverlayDir == "", and build default
|
|
// set to overlays?
|
|
return errors.New("must specify overlay(s) to build")
|
|
}
|
|
|
|
if len(args) > 0 {
|
|
if len(filteredNodes) != 1 {
|
|
return errors.New("must specify one node to build overlay")
|
|
}
|
|
|
|
for _, node := range filteredNodes {
|
|
return overlay.BuildOverlayIndir(node, allNodes, OverlayNames, OverlayDir)
|
|
}
|
|
} else {
|
|
return errors.New("must specify a node to build overlay")
|
|
}
|
|
}
|
|
|
|
oldMask := syscall.Umask(000)
|
|
defer syscall.Umask(oldMask)
|
|
|
|
workers := Workers
|
|
if workers <= 0 {
|
|
workers = runtime.NumCPU()
|
|
}
|
|
|
|
if len(OverlayNames) > 0 {
|
|
err = overlay.BuildSpecificOverlays(filteredNodes, allNodes, OverlayNames, workers)
|
|
} else {
|
|
err = overlay.BuildAllOverlays(filteredNodes, allNodes, workers)
|
|
}
|
|
|
|
if err != nil {
|
|
return fmt.Errorf("some overlays failed to be generated: %s", err)
|
|
}
|
|
return nil
|
|
}
|