tree 877e3b7beb7ccce440aa8d3d3aabdc257537a3a3
parent 1313148ef665cc9adabb651710efe75b8d14009d
author doujiang24 <doujiang24@gmail.com> 1642729400 +0000
committer Hyang-Ah Hana Kim <hyangah@gmail.com> 1642772047 +0000

cmd/viewcore: reset the flag values before executing subcommands

after executing a subcommand with --help flag one time,
the subcommand will always show the help usage even it doesn't
have the help flag,
since the help flag is always true after it's set to true once.

as the following case, the `top` flag won't work after executing `histo --help` once.
```
(viewcore) histo --help
print histogram of heap memory use by Go type.
If N is specified, it will reports only the top N buckets
based on the total bytes.

Usage:
   histogram [flags]

Aliases:
  histogram, histo

Flags:
  -h, --help      help for histogram
      --top int   reports only top N entries if N>0
(viewcore) histo --top 10
print histogram of heap memory use by Go type.
If N is specified, it will reports only the top N buckets
based on the total bytes.

Usage:
   histogram [flags]

Aliases:
  histogram, histo

Flags:
  -h, --help      help for histogram
      --top int   reports only top N entries if N>0
```

The original `ResetFlags` just delete the flags of the `root` command.
https://pkg.go.dev/github.com/spf13/cobra#Command.ResetFlags
https://github.com/spf13/cobra/issues/1488

Change-Id: Ib0c663846fe64512d29636c0d70afa1ba924828a
GitHub-Last-Rev: 328b3b6ec9313a5df8991751bfef11d4c119e84d
GitHub-Pull-Request: golang/debug#8
Reviewed-on: https://go-review.googlesource.com/c/debug/+/372374
Trust: Heschi Kreinick <heschi@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Trust: Hyang-Ah Hana Kim <hyangah@gmail.com>