45 lines
926 B
Go
45 lines
926 B
Go
package show
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path"
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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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)
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func CobraRunE(cmd *cobra.Command, args []string) error {
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var overlaySourceDir string
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overlayName := args[0]
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fileName := args[1]
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overlaySourceDir = overlay.OverlaySourceDir(overlayName)
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if !util.IsDir(overlaySourceDir) {
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wwlog.Printf(wwlog.ERROR, "Overlay does not exist: %s\n", overlayName)
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os.Exit(1)
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}
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overlayFile := path.Join(overlaySourceDir, fileName)
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if !util.IsFile(overlayFile) {
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wwlog.Printf(wwlog.ERROR, "File does not exist within overlay: %s:%s\n", overlayName, fileName)
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os.Exit(1)
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}
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f, err := ioutil.ReadFile(overlayFile)
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if err != nil {
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wwlog.Printf(wwlog.ERROR, "Could not read file: %s\n", err)
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os.Exit(1)
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}
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fmt.Print(string(f))
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return nil
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}
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