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|
require 'md5'
module LeapCli
module Util
extend self
##
## QUITTING
##
#
# quit and print help
#
def help!(message=nil)
ENV['GLI_DEBUG'] = "false"
help_now!(message)
#say("ERROR: " + message)
end
#
# quit with a message that we are bailing out.
#
def bail!(message="")
say(message)
say("Bailing out.")
raise SystemExit.new
#ENV['GLI_DEBUG'] = "false"
#exit_now!(message)
end
#
# quit with no message
#
def quit!(message='')
say(message)
raise SystemExit.new
end
#
# bails out with message if assertion is false.
#
def assert!(boolean, message)
bail!(message) unless boolean
end
#
# assert that the command is available
#
def assert_bin!(cmd_name)
assert! `which #{cmd_name}`.strip.any?, "Sorry, bailing out, the command '%s' is not installed." % cmd_name
end
##
## FILES AND DIRECTORIES
##
def relative_path(path)
path.sub(/^#{Regexp.escape(Path.provider)}\//,'')
end
def progress_created(path)
progress 'created %s' % relative_path(path)
end
def progress_updated(path)
progress 'updated %s' % relative_path(path)
end
def progress_nochange(path)
progress 'no change %s' % relative_path(path)
end
def progress_removed(path)
progress 'removed %s' % relative_path(path)
end
#
# creates a directory if it doesn't already exist
#
def ensure_dir(dir)
unless File.directory?(dir)
if File.exists?(dir)
bail! 'Unable to create directory "%s", file already exists.' % dir
else
FileUtils.mkdir_p(dir)
unless dir =~ /\/$/
dir = dir + '/'
end
progress_created dir
end
end
end
NAMED_PATHS = {
:user_ssh => 'users/#{arg}/#{arg}_ssh.pub',
:user_pgp => 'users/#{arg}/#{arg}_pgp.pub'
}
#
# read a file, exit if the file doesn't exist.
#
def read_file!(file_path)
if !File.exists?(file_path)
bail!("File '%s' does not exist." % file_path)
else
File.readfile(file_path)
end
end
def write_file!(*args)
if args.first.is_a? Symbol
write_named_file!(*args)
else
write_to_path!(*args)
end
end
def remove_file!(file_path)
if File.exists?(file_path)
File.unlink(file_path)
progress_removed(file_path)
end
end
#
# saves a named file
#
def write_named_file!(name, arg, contents)
assert!(NAMED_PATHS[name], "Error, I don't know the path for #{arg}")
filename = eval('"' + NAMED_PATHS[name] + '"')
fullpath = Path.provider + '/' + filename
write_to_path!(fullpath, contents)
end
def write_to_path!(filepath, contents)
ensure_dir File.dirname(filepath)
existed = File.exists?(filepath)
if existed
if file_content_is?(filepath, contents)
progress_nochange filepath
return
end
end
File.open(filepath, 'w') do |f|
f.write contents
end
if existed
progress_updated filepath
else
progress_created filepath
end
end
private
def file_content_is?(filepath, contents)
output = `md5sum '#{filepath}'`.strip
if $?.to_i == 0
return output.split(" ").first == MD5.md5(contents).to_s
else
return false
end
end
end
end
|
