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Usage messages: deduplicate '(default true)' et al

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Remove hardcoded '(default: true)' strings from bool flags,
and '(default this-or-that)' from string flags.

First because it's unmaintainable duplication that would cause
confusion should someone ever change the default and not notice
the message.

Second, because cobra[1] already prints '(default XXXX)' for
all options with non-false non-nil default. So in each of
these cases, current podman help behavior is:

    $ podman login --help
    ...
       --tls-verify  Require HTTPS ... (default: true) (default true)

This PR eliminates that duplication.

 [1] actually spf13/pflag/flag.go

The only nontrivial one of these is start.go, where the default
for sigProxy depends on the --attach flag. Solution: change
the command-line default to false, and implement the new
conditional default in logic. Bonus: removed unnecessary
check, because now if sigProxy is set without --attach,
we can guarantee that it was done by the user. But please
pay close scrutiny to this particular section in case
there's something I missed.

Signed-off-by: Ed Santiago <santiago@redhat.com>
This commit is contained in:
Ed Santiago
2019-03-13 13:49:39 -06:00
parent 7426d4fbbe
commit 8f82edbcb3
14 changed files with 17 additions and 21 deletions
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2
cmd/podman/main.go
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@@ -115,7 +115,7 @@ func init() {
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.DefaultMountsFile, "default-mounts-file", "", "Path to default mounts file")
rootCmd.PersistentFlags().MarkHidden("defaults-mount-file")
rootCmd.PersistentFlags().StringSliceVar(&MainGlobalOpts.HooksDir, "hooks-dir", []string{}, "Set the OCI hooks directory path (may be set multiple times)")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.LogLevel, "log-level", "error", "Log messages above specified level: debug, info, warn, error (default), fatal or panic")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.LogLevel, "log-level", "error", "Log messages above specified level: debug, info, warn, error, fatal or panic")
rootCmd.PersistentFlags().IntVar(&MainGlobalOpts.MaxWorks, "max-workers", 0, "The maximum number of workers for parallel operations")
rootCmd.PersistentFlags().MarkHidden("max-workers")
rootCmd.PersistentFlags().StringVar(&MainGlobalOpts.Namespace, "namespace", "", "Set the libpod namespace, used to create separate views of the containers and pods on the system")