I tried to uninstall datamapper using the command gem uninstall dm-core.
But it seems that a whole bunch of dependent gems also need to be uninstalled.
C:\>gem uninstall dm-core
You have requested to uninstall the gem:
dm-core-0.9.11
dm-migrations-0.9.11 depends on [dm-core (= 0.9.11)]
dm-cli-0.9.11 depends on [dm-core (= 0.9.11)]
dm-serializer-0.9.11 depends on [dm-core (= 0.9.11)]
dm-timestamps-0.9.11 depends on [dm-core (= 0.9.11)]
dm-aggregates-0.9.11 depends on [dm-core (= 0.9.11)]
dm-types-0.9.11 depends on [dm-core (= 0.9.11)]
dm-is-tree-0.9.11 depends on [dm-core (= 0.9.11)]
dm-observer-0.9.11 depends on [dm-core (= 0.9.11)]
dm-validations-0.9.11 depends on [dm-core (= 0.9.11)]
If you remove this gems, one or more dependencies will not be met.
Continue with Uninstall? [Yn] n
ERROR: While executing gem ... (Gem::DependencyRemovalException)
Uninstallation aborted due to dependent gem(s)
I tried finding documentation on “gem uninstall” but there doesn’t seem to be a way to uninstall the dependencies automatically:
C:\>gem help uninstall
Usage: gem uninstall GEMNAME [GEMNAME ...] [options]
Options:
-a, --[no-]all Uninstall all matching versions
-I, --[no-]ignore-dependencies Ignore dependency requirements while
uninstalling
-x, --[no-]executables Uninstall applicable executables with
out
confirmation
-i, --install-dir DIR Directory to uninstall gem from
-n, --bindir DIR Directory to remove binaries from
--[no-]user-install Uninstall from user's home directory
in addition to GEM_HOME.
-v, --version VERSION Specify version of gem to uninstall
--platform PLATFORM Specify the platform of gem to uninst
all
Common Options:
-h, --help Get help on this command
-V, --[no-]verbose Set the verbose level of output
-q, --quiet Silence commands
--config-file FILE Use this config file instead of defau
lt
--backtrace Show stack backtrace on errors
--debug Turn on Ruby debugging
Arguments:
GEMNAME name of gem to uninstall
Summary:
Uninstall gems from the local repository
Defaults:
--version '>= 0' --no-force --install-dir C:/Ruby18/lib/ruby/gems/1.8
--user-install
C:\>
Am I missing something?
As far as I know you’re correct, there is not an easy way built-in to the gem command to do this.
However, you can check out gem-prune which can help clean up your gem repository after you’ve removed dm-core.
http://github.com/ddollar/gem-prune/tree/master