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create symlink if target exists

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This commit is contained in:
Christian Goll
2022-06-08 10:33:49 +02:00
parent 386ce45990
commit ecea7a949f
1 changed files with 12 additions and 1 deletions
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13
internal/pkg/overlay/overlay.go
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@@ -417,12 +417,23 @@ func BuildOverlayIndir(nodeInfo node.NodeInfo, overlayNames []string, outputDir
if err != nil {
wwlog.ErrorExc(err, "")
}
if util.IsFile(path.Join(outputDir, location)) {
if !util.IsFile(path.Join(outputDir, location+".wwbackup")) {
wwlog.Debug("Target exists, creating backup file")
err = os.Rename(path.Join(outputDir, location), path.Join(outputDir, location+"wwbackup"))
} else {
wwlog.Debug("%s exists, keeping the backup file", path.Join(outputDir, location+".wwbackup"))
err = os.Remove(path.Join(outputDir, location))
}
if err != nil {
wwlog.ErrorExc(err, "")
}
}
err = os.Symlink(destination, path.Join(outputDir, location))
if err != nil {
wwlog.ErrorExc(err, "")
}
} else {
err := util.CopyFile(location, path.Join(outputDir, location))
if err == nil {
wwlog.Debug("Copied file into overlay: %s", location)