Start a pry-session with specific gems or a (remote) script preloaded.
For the idea behind this gem see this blogpost.
This gem allows you to get a pry-session with either...
- gems preloaded
- a script preloaded
This requires lemme-pry to be installed system-wide.
# to get the latest version of ActiveSupport
$ lemme-pry activesupport
Fetching gem metadata from https://rubygems.org/.........
Fetching version metadata from https://rubygems.org/.
Resolving dependencies...
Using concurrent-ruby 1.0.5
Using i18n 0.8.1
Using minitest 5.10.1
Using thread_safe 0.3.6
Using coderay 1.1.1
Using method_source 0.8.2
Using slop 3.6.0
Using bundler 1.14.5
Using tzinfo 1.2.2
Using pry 0.10.4
Using activesupport 5.0.2
[2] pry(main)> 1.second
=> 1 secondUse a specific version:
# any version notation that is accepted in a Gemfile will work
$ lemme-pry activesupport '~> 4.2'
...
[2] pry(main)>Multiple gems:
$ lemme-pry activesupport '~> 4.2' redis
...
[2] pry(main)>Anything piped to lemme-pry will be evaluated before the pry-session starts:
$ echo '@a = 1' | lemme-pry
[1] pry(main)> @a
=> 1# handy when sharing code with others:
$ curl https://gist.githubusercontent.com/eval/76955c57512c1e4ac01cdd913b76c92d/raw/bf714a15789eca3e968c3544f85b9b786b8eae8f/hello.rb | lemme-pry
# or via the gist command:
$ gist -r 76955c57512c1e4ac01cdd913b76c92d | lemme-pryNOTE: curl-pipe-runtime is not without risk. A tool like vipe (npm variant) allows you to inspect the fetched script before handing it over to lemme-pry.
When the script needs to be evaluated within a project (i.e. use the gems of your project), make sure lemme-pry is part of your project.
A script for a Rails project would typically look like this:
# script.rb
require './config/environment' # load Rails-application
@user = User.firstEvaluate via:
cat script.rb | bundle exec lemme-pry
...
[1] pry(main)> @user
#<User id: 1, username: ...
$ gem install lemme-pryAdd the following to Gemfile:
# Gemfile
gem 'lemme-pry', group: :developmentAfter checking out the repo, run bin/setup to install dependencies.
Then run the tool via:
$ ruby -Ilib exe/lemme-pry activesupport
The gem is available as open source under the terms of the MIT License.
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