Asp Forum - Need to create zip files

DaZoner

2/4/2005 7:29:00 PM

I'm wanting a programmatic way to create zip files (which I'd like to use in
conjunction with Rake to build my releases on Windows). Is rubyzip the way
to do this or am I missing something about Zlib? If its rubyzip does anyone
have a reference to some docs or examples?

10 Answers

Nathaniel Talbott

2/4/2005 11:33:00 PM

On Feb 4, 2005, at 14:50, DaZoner wrote:

> I'm wanting a programmatic way to create zip files (which I'd like to
> use in
> conjunction with Rake to build my releases on Windows). Is rubyzip the
> way
> to do this or am I missing something about Zlib? If its rubyzip does
> anyone
> have a reference to some docs or examples?

Actually, you'll need both rubyzip and zlib, since zlib does the
compression/decomcompression, and rubyzip handles the zip file system.
However, as long as you have zlib installed (including the ruby
extension for it) you won't have to use it directly - rubyzip just uses
it for the heavy lifting.

You can find rubyzip documentation at
http://rubyzip.sourceforg....

HTH,

Nathaniel
Terralien, Inc.

<:((><

DaZoner

2/7/2005 6:58:00 PM

RubyZip's docs do not have a "hey! this is how you use this to make a zip"
explanation and the methods aren't really documented - just source code is
shown. Anyone have examples or other docs?

"Nathaniel Talbott" <nathaniel@talbott.ws> wrote in message
news:2bc84bc15f263d2ef6a8aa41948db4c7@talbott.ws...
> On Feb 4, 2005, at 14:50, DaZoner wrote:
>
>> I'm wanting a programmatic way to create zip files (which I'd like to use
>> in
>> conjunction with Rake to build my releases on Windows). Is rubyzip the
>> way
>> to do this or am I missing something about Zlib? If its rubyzip does
>> anyone
>> have a reference to some docs or examples?
>
> Actually, you'll need both rubyzip and zlib, since zlib does the
> compression/decomcompression, and rubyzip handles the zip file system.
> However, as long as you have zlib installed (including the ruby extension
> for it) you won't have to use it directly - rubyzip just uses it for the
> heavy lifting.
>
> You can find rubyzip documentation at http://rubyzip.sourceforg....
>
> HTH,
>
>
> Nathaniel
> Terralien, Inc.
>
> <:((><
>
>
>

walter

2/7/2005 7:45:00 PM

>
> RubyZip's docs do not have a "hey! this is how you use this to make a zip"
> explanation and the methods aren't really documented - just source code is
> shown. Anyone have examples or other docs?
>

The following creates a zip dynamically, but you could traverse the file
system and do the same thing if you need.

hth,

Walt

require 'zip'

Zip::ZipOutputStream.open("c:/zip_test.zip") do |zos|
zos.put_next_entry("dir_1")
zos.puts "Hello " * 1000

zos.put_next_entry("dir_2")
zos.puts "Hello again"

zos.put_next_entry("dir_1/sub_dir_1")
zos.puts "boo!"*10
end

Zip::ZipInputStream.open("c:/zip_test.zip") do |zis|
while e = zis.get_next_entry
puts "*******************************************************"
puts "#{e.name}, orig = #{e.size}, compressed = #{e.compressed_size}"
puts zis.read
end
end

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Assaph Mehr

2/7/2005 11:50:00 PM

DaZoner wrote:
> RubyZip's docs do not have a "hey! this is how you use this to make a
zip"
> explanation and the methods aren't really documented - just source
code is
> shown. Anyone have examples or other docs?

Do you mind if you generate a .tar.gz instead of .zip? Both can be
opened in windows by winzip. I really like minitar
(http://raa.ruby-lang.org/projec...), and zipping a bunch of
files can be as easy as:

files = Dir['*.htm']

tar = File.open 'guides.tar', 'wb'
Minitar.pack files, tar

# zip into .tar.gz:
tgz = Zlib::GzipWriter.open('guides.tar.gz')
tgz.write File.open('guides.tar', 'rb').read
tgz.close

Just note that the files are always opened in binary mode.

HTH,
Assaph

Nathaniel Talbott

2/8/2005 1:01:00 AM

On Feb 7, 2005, at 14:20, DaZoner wrote:

> RubyZip's docs do not have a "hey! this is how you use this to make a
> zip"
> explanation and the methods aren't really documented - just source
> code is
> shown. Anyone have examples or other docs?

Sorry, I should have mentioned that there are samples (and tests) in
the rubyzip archive. You should download it and have a look.

HTH,

Nathaniel
Terralien, Inc.

<:((><

thomas

2/17/2005 8:53:00 AM

"DaZoner" <bugmenot@world.com> wrote in message news:<cu8dmv$8u$1@news.doit.wisc.edu>...
> RubyZip's docs do not have a "hey! this is how you use this to make a zip"
> explanation and the methods aren't really documented - just source code is
> shown. Anyone have examples or other docs?

You are right the documentation really needs improvement. I'll see if
I can crank out something useful.

Cheers,

Thomas

James Britt

2/17/2005 1:26:00 PM

Thomas Sondergaard wrote:
> "DaZoner" <bugmenot@world.com> wrote in message news:<cu8dmv$8u$1@news.doit.wisc.edu>...
>
>>RubyZip's docs do not have a "hey! this is how you use this to make a zip"
>>explanation and the methods aren't really documented - just source code is
>>shown. Anyone have examples or other docs?

ooo4r.rubyforge.org creates OOo docs, which are zip files.

(I haven't looked at the code in a while, but I recall having issues
with corrupt headers when generating the zip files)

James

Stephan Kämper

2/17/2005 6:22:00 PM

James Britt wrote:
> Thomas Sondergaard wrote:
>
>> "DaZoner" <bugmenot@world.com> wrote in message
>> news:<cu8dmv$8u$1@news.doit.wisc.edu>...
>>
>>> RubyZip's docs do not have a "hey! this is how you use this to make a
>>> zip" explanation and the methods aren't really documented - just
>>> source code is shown. Anyone have examples or other docs?
>
>

file_name: The (base) name of a to-be-zipped file
FILES_DIR: The directory where the file lives
PACKED_DIR: The directory where the zip file is created

Zip::ZipFile.open( "#{ PACKED_DIR }/#{ file_name }.zip",
Zip::ZipFile::CREATE ) { | zip |
zip.add( "#{ file_name }.rb" ,
"#{ FILES_DIR }#{ file_name }.rb" )
}

Beware of the line breaks.

HTH

Happy rubying

Stephan

thomas

2/18/2005 9:11:00 AM

James Britt <jamesUNDERBARb@neurogami.com> wrote in message
> ooo4r.rubyforge.org creates OOo docs, which are zip files.
>
> (I haven't looked at the code in a while, but I recall having issues
> with corrupt headers when generating the zip files)
>
> James

I think I fixed the issue(s) with header corruption.

To the original poster: I have been busy last night writing rdoc
comments in rubyzip - check it out at http://rubyzip.sourc....

Thomas

ruby talk

2/18/2005 2:59:00 PM

On Fri, 18 Feb 2005 18:14:47 +0900, Thomas Sondergaard
<thomas@sondergaard.cc> wrote:
> James Britt <jamesUNDERBARb@neurogami.com> wrote in message
> > ooo4r.rubyforge.org creates OOo docs, which are zip files.
> >
> > (I haven't looked at the code in a while, but I recall having issues
> > with corrupt headers when generating the zip files)
> >
> > James
>
> I think I fixed the issue(s) with header corruption.

Oh, super cool. Must go see ...

James

comp.lang.ruby

Need to create zip files

DaZoner

Nathaniel Talbott

DaZoner

walter

Assaph Mehr

Nathaniel Talbott

thomas

James Britt

Stephan Kämper

thomas

ruby talk

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