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