General settings for deployment in deploy.rb Capistrano

Here some general settings and use of them in capistrano deployment.

1. set_scm: Set protocol to copy code from your repository to server.
   set: 'git' // git protocol will used for deployment.

2. Set repository: set path of your git repository.
3. deploy_via : This is very important setting. There are two ways to set this variable
  3.1 Set to copy : 
         set :deploy_via, :copy
 this will copy all code with all meta data of repository like branch info n all.This will be a slow process because capistrano will perform a scp from your repository to server.

 3.2 Set to export: 
       set :deploy_via, :export

This is faster a bit because it will clone repository to the server it leave metadata of the repository.

4. Set branch: Set default branch to be deployed.There are many ways you can set it like:

 4.1 Set it manually: Just hard code the branch name.  
        set :branch ,'branch_name'
  4.2 Ask before deployment: Use Capistrano::CLI.ask to take branch name at deployment time.

set :branch do
default_branch = Capistrano::CLI.ask('Enter branch name')
end

4.3 Use current branch: You can use current working branch like:
  set :branch do
   default_branch = `git rev-parse --abbrev-ref HEAD`.chomp
  end

These are some common settings to keep in mind before writing a deployment script in capistrano.

Enjoy!!!!!