8324d7918b
Continues 11858 by: - Making sure the exit code is always zero when we ask for help - Making sure the exit code isn't zero when we print help on error cases - Making sure both short and long usage go to the same stream (stdout vs stderr) - Making sure all docker commands support --help - Test that all cmds send --help to stdout, exit code 0, show full usage, no blank lines at end - Test that all cmds (that support it) show short usage on bad arg to stderr, no blank line at end - Test that all cmds complain about a bad option, no blank line at end - Test that docker (w/o subcmd) does the same stuff mentioned above properly Signed-off-by: Doug Davis <dug@us.ibm.com> |
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|---|---|---|
| .. | ||
| example | ||
| flag.go | ||
| flag_test.go | ||
| LICENSE | ||
| README.md | ||
Package mflag (aka multiple-flag) implements command-line flag parsing.
It's an hacky fork of the official golang package
It adds:
-
both short and long flag version
./example -s red./example --string blue -
multiple names for the same option
$>./example -h
Usage of example:
-s, --string="": a simple string
It is very flexible on purpose, so you can do things like:
$>./example -h
Usage of example:
-s, -string, --string="": a simple string
Or:
$>./example -h
Usage of example:
-oldflag, --newflag="": a simple string
You can also hide some flags from the usage, so if we want only --newflag:
$>./example -h
Usage of example:
--newflag="": a simple string
$>./example -oldflag str
str
See example.go for more details.