Class: C0Setup

Inherits:
Object
  • Object
show all
Defined in:
lib/c0_setup.rb

Instance Method Summary collapse

Instance Method Details

#check_precedence ⇒ Object

check for things that don’t exist yet



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# File 'lib/c0_setup.rb', line 37

def check_precedence
  Dir.chdir(File.expand_path("~")) do
    not_yet = []
    if which("cc0").nil?
      not_yet.push("cc0") 
    end
    if which("coin").nil?
      not_yet.push("coin") 
    end
    if !Dir.exist?(".c0")
      not_yet.push("runpath")
    end
    return not_yet
  end
end

#create_runpath ⇒ Object

create folder for binaries and set executable path



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# File 'lib/c0_setup.rb', line 54

def create_runpath
  Dir.chdir(File.expand_path("~")) do
    Dir.mkdir ".c0"
    File.new("#{File.expand_path("~")}/.bashrc", "w+") unless File.exist? ".bashrc"
    File.open(".bashrc", "a") do |file|
      file.puts "export PATH=$PATH:~/.c0/bin"
    end
    in_path = File.open(".bashrc", "r").read.include? "export PATH=$PATH:~/.c0/bin"
    return (in_path and Dir.exist? ".c0")
  end
end

#get_os ⇒ Object

figure out the os



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# File 'lib/c0_setup.rb', line 90

def get_os
    result = ""
    os = RbConfig::CONFIG['host_os']
    if os.downcase.include?('linux')
    result = 'linux'
    elsif os.downcase.include?('darwin')
    result = 'darwin'
  end
  return result
end

#install_lib ⇒ Object

copy the c0 lib to “~/.c0” (OS specific)



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# File 'lib/c0_setup.rb', line 66

def install_lib
  user = File.expand_path("~")
  if get_os == "darwin"
    `tar -xvzf #{File.expand_path(File.dirname __dir__)}/c0_mac.tar.gz -C #{user}/.c0`
  elsif get_os == "linux"
    `tar -xvzf #{File.expand_path(File.dirname __dir__)}/c0_linux.tar.gz -C #{user}/.c0`
  end  
  return (File.exist?("#{user}/.c0/bin/cc0") and File.exist?("#{user}/.c0/bin/coin"))
end

#setup ⇒ Object

do the setup yo



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# File 'lib/c0_setup.rb', line 10

def setup
  to_do = check_precedence()
  result = []
  if to_do.include? "runpath"
    if create_runpath
      result.push "successfully created runpath"
    else
      result.push "failed to create runpath"
      return result
    end
  else
    result.push ".c0 folder already exists, remove it and retry if broken"
    return result
  end
  if to_do.include? "cc0" and to_do.include? "coin"
    if install_lib
      result.push "successfully installed cc0 and coin"
    else
      result.push "failed to install cc0 and coin"
    end
  else 
    result.push "coin or cc0 is already installed somewhere, remove it and retry if broken"
  end

end

#which(cmd) ⇒ Object

check for the presence of a binary in $PATH



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# File 'lib/c0_setup.rb', line 78

def which(cmd)
  exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
  ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
    exts.each do |ext|
      exe = File.join(path, "#{cmd}#{ext}")
      return exe if File.executable?(exe) && !File.directory?(exe)
    end
  end
  return nil
end