Method to get (Linux) user home path

Ruby
1

Hi,

i am trying to create a file in ~/.myopts/myopts.yaml but, no go.
Trying using $HOME/.myopts/myopts.yaml does not work either.
Only specifying manually /home/me/.myopts/myopts.yaml but that is no
solution.

Is there any method to get me the path to the user account running the
script ?

Regards,

2

On 2/8/07, pedro mg [email protected] wrote:

Hi,

i am trying to create a file in ~/.myopts/myopts.yaml but, no go.
Trying using $HOME/.myopts/myopts.yaml does not work either.
Only specifying manually /home/me/.myopts/myopts.yaml but that is no
solution.

Is there any method to get me the path to the user account running the
script ?

ENV[‘HOME’]

martin

3

These are my personal implementations of Dir.home and Dir.temp.

I added some examples as well.

gegroet,
Erik V. - http://www.erikveen.dds.nl/

class Dir
def self.home(*args, &block)
dir = nil

 dir ||= ENV["HOME"]
 dir ||= ENV["USERPROFILE"]
 dir ||= "c:/"

 handle_home_and_temp(dir, *args, &block)

end

def self.temp(*args, &block)
dir = nil

 dir ||= ENV["TMPDIR"]
 dir ||= ENV["TMP"]
 dir ||= ENV["TEMP"]
 dir ||= "/tmp"

 handle_home_and_temp(dir, *args, &block)

end

private

def self.handle_home_and_temp(dir, *args, &block)
file = File.join(*args)
file = file.gsub(/\/, “/”)
file = file.gsub(//+/, “/”)
file = file.gsub(/^/+/, “”)
file = file.gsub(//+$/, “”)

 dir         = dir.gsub(/\\/, "/")
 dir         = dir.gsub(/\/+/, "/")
 dir         = dir.gsub(/\/+$/, "")
 dir         = File.expand_path(file, dir)

 res         = dir

 if block
   pdir      = Dir.pwd

   Dir.chdir(dir)    # Ruby 1.6 doesn't handle Dir.chdir(&block).
     res     = block.call(res)
   Dir.chdir(pdir)
 end

 res

end
end

p Dir.home
p Dir.home{Dir.pwd}
p Dir.home(“a”, “b”)
p Dir.home(“a”, “b”){Dir.pwd}

p Dir.temp
p Dir.temp{Dir.pwd}
p Dir.temp(“c”, “d”)
p Dir.temp(“c”, “d”){Dir.pwd}

4

pedro mg wrote:

Is there any method to get me the path to the user account running the
script ?

ENV hash has it all…

puts ENV[‘HOME’] if ENV.has_key?(‘HOME’)

5

Thank you, Martin, Erik and Brian.
Very useful information, all 3 of you posted.

best regards,

6

On Thu, Feb 08, 2007 at 07:52:41PM +0900, Erik V. wrote:

These are my personal implementations of Dir.home and Dir.temp.

ruby has the latter included as standard.

require ‘tmpdir’
puts Dir.tmpdir

Here’s the implementation from tmpdir.rb:

Returns the operating system’s temporary file path.

def Dir::tmpdir
tmp = ‘.’
if $SAFE > 0
tmp = @@systmpdir
else
for dir in [ENV[‘TMPDIR’], ENV[‘TMP’], ENV[‘TEMP’],
ENV[‘USERPROFILE’], @@systmpdir, ‘/tmp’]
if dir and File.directory?(dir) and File.writable?(dir)
tmp = dir
break
end
end
end
File.expand_path(tmp)
end