moby/pkg/mflag
Sally O'Malley 41de7a18d8 Change 'docker run' exit codes to distinguish docker/contained errors
The purpose of this PR is for users to distinguish Docker errors from
contained command errors.
This PR modifies 'docker run' exit codes to follow the chroot standard
for exit codes.
Exit status:
125 if 'docker run' itself fails
126 if contained command cannot be invoked
127 if contained command cannot be found
the exit status otherwise

Signed-off-by: Sally O'Malley <somalley@redhat.com>
2015-11-04 15:18:50 -05:00
..
example update go import path and libcontainer 2014-07-24 22:19:50 +00:00
flag.go Change 'docker run' exit codes to distinguish docker/contained errors 2015-11-04 15:18:50 -05:00
flag_test.go fix issue with goimport 2015-01-12 22:52:19 +00:00
LICENSE update copyrights to 2015 2015-01-12 22:47:36 +00:00
README.md update commands.go 2014-01-17 17:33:15 -08:00

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.