https://github.com/eval/lemme-pry
(mirror) Start a pry-session with specific gems or a (remote) script loaded.
https://github.com/eval/lemme-pry
pry repl ruby
Last synced: 8 months ago
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(mirror) Start a pry-session with specific gems or a (remote) script loaded.
- Host: GitHub
- URL: https://github.com/eval/lemme-pry
- Owner: eval
- License: mit
- Created: 2017-03-29T09:37:54.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2017-06-19T10:42:37.000Z (over 8 years ago)
- Last Synced: 2025-01-13T01:44:30.477Z (9 months ago)
- Topics: pry, repl, ruby
- Language: Ruby
- Homepage: https://gitlab.com/eval/lemme-pry/blob/master/README.md#lemme-pry
- Size: 46.9 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
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README
# lemme-pry
Start a pry-session with specific gems or a (remote) script preloaded.
For the idea behind this gem see [this blogpost](https://www.gertgoet.com/2017/06/12/lemme-pry.html).
## Usage
This gem allows you to get a pry-session with either...
1. gems preloaded
2. a script preloaded
### pry-session with gems pre-loaded
This requires lemme-pry to be [installed system-wide](#system-wide).
```bash
# 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 second
```
Use a specific version:
```bash
# any version notation that is accepted in a Gemfile will work
$ lemme-pry activesupport '~> 4.2'
...
[2] pry(main)>
```
Multiple gems:
```bash
$ lemme-pry activesupport '~> 4.2' redis
...
[2] pry(main)>
```
### pry-session with script preloaded
Anything piped to lemme-pry will be evaluated before the pry-session starts:
```bash
$ echo '@a = 1' | lemme-pry
[1] pry(main)> @a
=> 1
```
```bash
# 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-pry
```
**NOTE:** curl-pipe-runtime is [not without risk](https://www.idontplaydarts.com/2016/04/detecting-curl-pipe-bash-server-side/). A tool like [vipe](https://github.com/madx/moreutils/blob/master/vipe) ([npm variant](https://github.com/juliangruber/vipe#vipe)) allows you to inspect the fetched script before handing it over to lemme-pry.
#### within a (Rails-)project
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](#within-project).
A script for a Rails project would typically look like this:
```ruby
# script.rb
require './config/environment' # load Rails-application
@user = User.first
```
Evaluate via:
```
cat script.rb | bundle exec lemme-pry
...
[1] pry(main)> @user
#