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add warning for deprecatd flags

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Docker-DCO-1.1-Signed-off-by: Victor Vieux <victor.vieux@docker.com> (github: vieux)
This commit is contained in:
Victor Vieux 2014-03-03 19:57:05 +00:00
parent d1b77040a7
commit ed2e85ad24
1 changed files with 5 additions and 0 deletions
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5
mflag/flag.go
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@ -803,6 +803,11 @@ func (f *FlagSet) parseOne() (bool, string, error) {
f.actual = make(map[string]*Flag)
}
f.actual[name] = flag
for _, n := range flag.Names {
if n == fmt.Sprintf("#%s", name) {
fmt.Fprintf(f.out(), "Warning: '-%s' is deprecated, it will be removed soon. See usage.\n", name)
}
}
return true, "", nil
}