How do I read/write an ini file in ruby. I have an ini file that I need to
- read
- change an entry
- write out to a different location
How would I do that in ruby? The documentation on this is bleak.
views:
1338answers:
5
+1
A:
file = File.new("your.ini", "r")
while (line = file.gets)
puts "#{line}" #additionally make changes
end
file.close
dirkgently
2009-03-03 19:06:46
Can't make changes on a file that's opened with "r" - should be "r+"
Sarah Mei
2009-03-03 20:34:00
That's why I am outputting to console -- I don't like reading and writing the same file in one go (and some exercise for the OP) :)
dirkgently
2009-03-03 20:36:35
very simple I'm looking for a more abstract way addressing the keys and values not only line by line. something like x=INIfile.new('iniin.ini');x['section','key']='newvalue';x.write("newinifile.txtx")something like this seems more straightforward since I know that i'm working with an in file.
Andrew Redd
2009-03-05 05:08:19
This doesn't answer the question at all. File != 'an ini file'.
Vertis
2010-05-14 05:53:23
A:
If I understand correctly,
outFile = File.new('out.ini', 'w')
File.open('in.ini', 'r') do |inFile|
inFile.each_line do |line|
# foo is the entry you want to change, baz is its new value.
outFile.puts(line.sub(/foo=(.*)/, 'foo=baz'))
end
end
outFile.close
Note that when you use File.open with a block, the file will automatically be closed when the block terminates.
Yaser Sulaiman
2009-03-03 20:06:34
+1
A:
I recently used ruby-inifile. Maybe it's overkill compared to the simple snippets here...
method
2009-03-04 03:25:45
it's not overkill if it's the simplest way. I tend to think that a gem designed to handle this specifically would be better. Don't suppose you could post an example?
Andrew Redd
2009-03-05 17:47:40
Sure, like this, using Linux .desktop files : http://pastie.org/410612I don't know if it's a gem though.
method
2009-03-08 01:45:49