Rush, a shell that will yield to you

ru sh

a shell that will yield to you

http://flickr.com/photos/exquisitur/2551255999/

What is ru sh ?

Unix shell with ruby syntax and idioms

by Adam Wiggins (Heroku)

Install and Run $ sudo gem install rush $ rush rush> home=> localhost:/Users/schlueter/

No Working Directory $ home => localhost:/Users/schlueter $ root=> localhost://// $ rushmate = home[ "mydev/github/rushmate/" ] => localhost:/Users/schlueter/mydev/github/rushmate/

But ls Still Works $ home[ "mydev/github/rushmate/" ].ls /Users/schlueter/mydev/github/rushmate/ coverage/ lib/ test/ History.txt MIT-LICENSE Manifest.txt

Make a Variable $ rushmate = home[ "mydev/github/rushmate/" ]

File Manipulation http://flickr.com/photos/takashi/18862634/

Rename # assign a file to a variable $ file = rushmate[ 'app/models/rushmate.rb' ] $ file.rename 'russian_mate.rb'

Duplicate a File $ file = rushmate[ 'README' ] $ file.duplicate 'README.markdown'

Copy Different Directory $ file = rushmate[ 'README' ] $ file.copy_to other_project[ 'README' ]

Move $ file = rushmate[ 'README' ] $ file.move_to home[ 'Desktop/' ]

Write a File $ file = rushmate[ 'README' ] $ file.write "You Read Me"

Read a File $ rushmate[ "README" ].contents You Read Me

File Globbing

Basic Globbing $ rushmate[ "**/*.rb" ] .../mydev/github/rushmate/lib/rushmate.rb.../mydev/github/rushmate/lib/rushmate/command.rb.../mydev/github/rushmate/lib/rushmate/exit.rb ... => 9 x Rush :: File

Glob into an Editor $ rushmate[ "**/*.rb" ].vi $ rushmate[ "**/*.rb" ].mate

Operate on Results $ rails_proj[ '**/*.rhtml' ].each { | f | f.rename f.name.gsub( / . rhtml/ , '.html.erb' ) }

Results Are an Array $ rushmate[ "**/*.rb" ].reject {| f | f.name.match( /test.rb/ )} Go Nuts! $ rails_project[ "**/*.rhtml" ] + rails_project[ "**/*.html.erb" ]

embed http://flickr.com/photos/liamngls/413522957/ Rush :: EmbeddableShell . new .execute_in_shell do #anything in here delegates to rush end

Sake Quick Index of RDoc task 'rdoc:local' => 'rush' do shell = Rush :: EmbeddableShell . new shell.execute_in_shell do end end ruby = root[ "/Library/Ruby/Gems/1.8/" ] indexes = ruby[ "doc/*/rdoc/index.html" ] hrefs = indexes.collect { | f | path = f.full_path text = path.match( /doc / (.*) / rdoc/ )[ 1 ] "<a href= " #{path} " >#{text}</a>" } home[ "rdoc.html" ].write hrefs.join( "<br />" ) home.bash( "open rdoc.html" )

sake rdoc:local

Refactoring http://flickr.com/photos/tonyjcase/2262229518/

Search $ work[ "**/*.rb" ].search( / Rushmate / ) .../test/user_input_test.rb => assert_equal("foo", Rushmate ::.../lib/rushmate/command.rb => module Rushmate .../lib/rushmate/exit.rb => module Rushmate ...7 matching files with 25 matching lines $ work[ "**/*.rb" ].search( / Rushmate / ).mate

and Replace

$ rushmate[ "**/*.rb" ].replace_contents!

( / Rushmate / , "RussianMate" )

.../lib/rushmate.rb.../lib/rushmate/command.rb.../lib/rushmate/exit.rb => 9 x Rush :: File

Regex is your friend $ project_files.replace_contents! ( /User.authenticate (s *(.*), s *(.*) ) / , 'User.authenticate( \ 2, \ 1)' ) User .authenticate(user, password) User .authenticate(password, user)

Processes

ff.alive?

ff.mem

ff.pid

ff.cpu

ff.kill

$ ff = processes.filter( :cmdline => /firefox/ ).first

Real World Rush :: EmbeddableShell . new .execute_in_shell do end ff_processes = processes. filter ( :cmdline => /firefox/ ) if ff = ff_processes.select{| p | p.mem > 400000 }.first ff_cmdline = ff.cmdline ff.kill home.bash ff_cmdline, :background => true end

Permissions $ file.access = { :user_can => :read_and_write , :group_and_other_can => :read } $ file.access[ :user_can_read ] => true

Use BASH if you must $ rushmate.bash "rm -rf ." # D'oh!

Shell Locally Act Globally

Remote $ remote = Rush :: Box . new ( 'user@server.com' ) $ remote[ "/u/app/current/REVISION" ].contents => 160

Starts a Mongrel on Remote Server Use in production with caution

Customize # setup variables to common directories rushmate = home[ "mydev/github/rushmate/" ] # setup variables to common servers qa = Rush :: Box . new ( 'user@qa.local' ) ~/.rush/evn.rb

Cheap Backup def cheap_backup (directory) unless directory.dir? puts "cheap backup only works on dirs" return end backup_path = directory.path + "/" + directory.name + ".bak" if self [backup_path].exists? puts "backup already exists" else directory.duplicate(directory.name + ".bak" ) end end

Extend # allows you to run # directory.coverage def coverage self .rake( "coverage" ) end ~/.rush/commands.rb

Another Command def ruby_files self [ "**/*.rb" ] end $ rushmate.ruby_files .../mydev/github/rushmate/lib/rushmate.rb.../mydev/github/rushmate/lib/rushmate/command.rb.../mydev/github/rushmate/lib/rushmate/exit.rb ... => 9 x Rush::File

TextMate Rushmate :: Command . new { # find ruby files with the current word in textmate found_files = project_directory[ "**/#{current_word.downcase}.rb" ] if found_files.size == 1 found_files.mate else menu_files = found_files.collect { | f | f.full_path.gsub(project_directory.full_path, "" ) } project_directory[user_input.quick_menu_from_array(menu_files)].mate end }

The Take Away

Questions ?

Thank You