Ruby equivalent to `find . -perm -g+rw -ls`

Ruby
1

Hi,

I can’t find a Ruby equivalent to

find . -perm -g+rw -ls

Currently, it looks like I’ll need to combine,

File.stat(file).mode

with something like Hal F.'s sym2oct,

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/96956

hacked into Daniel B.'s file-find gem,

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/248981

and require ‘etc’ to pull out the user and group names instead of uids
and gids?

Is there an alternative to all this yak shaving?

Thanks,

2

On Nov 17, 2008, at 11:21 AM, Bil K. wrote:

with something like Hal F.'s sym2oct,
Is there an alternative to all this yak shaving?
maybe something like this?

rolando:test_perm rolando$ ls -l
total 8
-rw-rw-r-- 1 rolando staff 0 Nov 17 12:12 1
-rw-r–r-- 1 rolando staff 0 Nov 17 12:13 2
-rw-r–r-- 1 rolando staff 77 Nov 17 12:21 perm.rb

rolando:test_perm rolando$ find . -perm -g+rw -ls
1510804 0 -rw-rw-r-- 1 rolando staff 0 Nov 17
12:12 ./1

rolando:test_perm rolando$ ruby perm.rb
[“./1”]
rolando:test_perm rolando$ cat perm.rb

NOTE: 060 == g+rw

p Dir[“./**/*”].select { |f| File.stat(f).mode & 060 == 060 ? true :
nil }

Thanks,

http://twitter.com/bil_kleb

regards,

3

Hi,

Rolando A. [email protected] wrote:

maybe something like this?
[…]
rolando:test_perm rolando$ cat perm.rb

NOTE: 060 == g+rw

This is what I’m reduced to doing now. It just feels wrong
for me to have to resort to octal – it’s not at the
correct abstraction level as evidenced by your comment.

p Dir[“./**/*”].select {
|f| File.stat(f).mode & 060 == 060 ? true : nil }

You don’t need the ‘? true : nil’ part AFAICT – the
first conditional satisfies select.

Regards,

4

On Nov 17, 2008, at 3:31 PM, Bil K. wrote:

You don’t need the ‘? true : nil’ part AFAICT – the
first conditional satisfies select.

that’s correct.

Regards,

http://twitter.com/bil_kleb

regards,

5

Bil K. wrote:

with something like Hal F.'s sym2oct,
Is there an alternative to all this yak shaving?
Not at the moment, but both are excellent ideas. I’ve submitted them
myself at:

http://rubyforge.org/tracker/index.php?func=detail&aid=22854&group_id=735&atid=2912
http://rubyforge.org/tracker/index.php?func=detail&aid=22855&group_id=735&atid=2912

Supporting strings for users and groups is trivial. Supporting symbolic
permissions will be more of a hassle.

Regards,

Dan

6

Hi,

Daniel B. [email protected] wrote:

Bil K. wrote:

[…] Is there an alternative to all this yak shaving?

Not at the moment, but both are excellent ideas.
I’ve submitted them myself at:

[http://rubyforge.org/tracker/?atid=2912&group_id=735]

Excellent; thanks.

Regards,

7

Bil K. wrote:

Excellent; thanks.
I’ve already tested and committed the changes for the :user and :group
changes.
They’ll be part of release 0.2.2. I should have a release out this week.

I’ll save the :perm changes for 0.2.3 after I’ve had the chance to
review some
of the code I’ve seen online.

Regards,

Dan

8

Hi,

On Nov 17, 11:56 am, Bil K. [email protected] wrote:

Excellent; thanks.

file-find 0.2.2 has been released, which now supports names as well as
id’s for the :name and :group options (on Unix, anyway).

Regards,

Dan

9

On Nov 17, 7:21 am, Bil K. [email protected] wrote:

with something like Hal F.'s sym2oct,
Is there an alternative to all this yak shaving?
I just released file-find 0.2.4 which now does all your yak shaving
for you, i.e. it now supports symbolic permissions, too.

Regards,

Dan