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Merge pull request #46852 from tnozicka/lookup-no-headers-safely

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Automatic merge from submit-queue (batch tested with PRs 47470, 47260, 47411, 46852, 46135)

Lookup --no-headers flag safely in PrinterForCommand function

If this was invoked by a command that did not call AddPrinterFlags first, it ended up with fatal error on `GetFlagBool(cmd, "no-headers")`. This is causing a bug in OpenShift's command reusing this code and not actually having a flag `--no-headers`.
This commit is contained in:
Kubernetes Submit Queue 2017-06-14 12:52:24 -07:00 committed by GitHub
commit d067836030
1 changed files with 7 additions and 2 deletions
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9
pkg/kubectl/cmd/util/printing.go
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@ -115,8 +115,13 @@ func PrinterForCommand(cmd *cobra.Command, outputOpts *printers.OutputOptions, m
outputOpts = extractOutputOptions(cmd)
}
printer, err := printers.GetStandardPrinter(outputOpts,
GetFlagBool(cmd, "no-headers"), mapper, typer, encoder, decoders, options)
// this function may be invoked by a command that did not call AddPrinterFlags first, so we need
// to be safe about how we access the no-headers flag
noHeaders := false
if cmd.Flags().Lookup("no-headers") != nil {
noHeaders = GetFlagBool(cmd, "no-headers")
}
printer, err := printers.GetStandardPrinter(outputOpts, noHeaders, mapper, typer, encoder, decoders, options)
if err != nil {
return nil, err
}