zip

How to use System.IO.Compression to read/write ZIP files?

I know there are libraries out there for working with ZIP files. And, you can alternatively use the functionality built into Windows for working ZIP files. But, I'm wondering if anyone has worked out how to use the tools built into the System.IO.Compression namespace within .NET for reading/writing ZIP files? Or, is it not possible usin...

What is the buffer size to create a .zip archive using Java?

Hello, I use this code to create a .zip with a list of files: ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zipFile)); for (int i=0;i<srcFiles.length;i++){ String fileName=srcFiles[i].getName(); ZipEntry zipEntry = new ZipEntry(fileName); zos.putNextEntry(zipEntry); InputStream fis = new FileInputStream...

.NET - Stream DataSet (of XML data) to ZIP file?

I have a DataSet consisting of XML data, I can easily output this to a file: DataSet ds = new DataSet(); DataTable dt = new DataTable(); ds.Tables.Add(dt); ds.Load(reader, LoadOption.PreserveChanges, ds.Tables[0]); ds.WriteXml("C:\\test.xml"); However what I want to do is compress the XML into a ZIP or other type of compressed file an...

How to split a huge zip file into multiple volumes?

When I create a zip Archive via java.util.zip.*, is there a way to split the resulting archive in multiple volumes? Let's say my overall archive has a filesize of 24 MB and I want to split it into 3 files on a limit of 10 MB per file. Is there a zip API which has this feature? Or any other nice ways to achieve this? Thanks Thollsten ...

portable zip library for C/C++ (not an application)

I want to be able to zip files from my non-gui C/C++ application, on several versions of Windows, Linux/Unix, and MacOS. The user will compile and run using this app using Eclipse + makefile or VisualStudio. I don't want the user to have to install something separately, or have my makefile install executables. Prefer open-source. I'm a...

how to read files from uncompressed zip in c#?

Hi, I´m creating a PDA app and I need to upload/download a lot of small files and my idea is to gather them in an uncompressed zip file. The question is: It´s a good idea to read those files from the zip without separating them? How can I do so? Or is it better to unzip them? Since the files are not compressed my simple mind points that...

How do I create a ZIP file of my Cruise Control builds?

I use CruiseControl.NET to automatically build my .NET 3.5 web applications, which works a treat. However, is there any way to automatically create a ZIP file of these builds, and put the ZIP's into a separate directory? I have seen this is possible using NAnt but cannot find an example of how to get this working. Can anyone offer hel...

GZipStream And DeflateStream will not decompress all bytes

I was in need of a way to compress images in .net so i looked into using the .net GZipStream class (or DeflateStream). However i found that decompression was not always successful, sometimes the images would decompress fine and other times i would get a GDI+ error that something is corrupted. After investigating the issue i found that t...

Create Zip archive from multiple in memory files in C#

Is there a way to create a Zip archive that contains multiple files, when the files are currently in memory? The files I want to save are really just text only and are stored in a string class in my application. But I would like to save multiple files in a single self-contained archive. They can all be in the root of the archive. It ...

Best process for auto-zipping of multiple MP3s

I've got a project which requires a fairly complicated process and I want to make sure I know the best way to do this. I'm using ASP.net C# with Adobe Flex 3. The app server is Mosso (cloud server) and the file storage server is Amazon S3. The existing site can be viewed at NoiseTrade.com I need to do this: Allow users to upload MP3 f...

Set permissions on a compressed file in python

I have a file test.txt that is inside a zip archive test.zip. The permissions on test.txt are out of my control when it's compressed, but now I want them to be group-writeable. I am extracting the file with Python, and don't want to escape out to the shell. EDIT: Here's what I've got so far: import zipfile z = zipfile.ZipFile('test....

Extract files from ZIP file with VBScript

When extracting files from a ZIP file I was using the following. Sub Unzip(strFile) ' This routine unzips a file. NOTE: The files are extracted to a folder ' ' in the same location using the name of the file minus the extension. ' ' EX. C:\Test.zip will be extracted to C:\Test ' 'strFile (String) = Full path and filename of the file to...

How do I zip the contents of a folder using python (version 2.5)?

Once I have all the files I require in a particular folder, I would like my python script to zip the folder contents. Is this possible? And how could I go about doing it? A point in the right direction (i.e. a link with an example) or an example that I can see would be extremely helpful. Thanks in advance. ...

Create a zip file from a generator in Python?

I've got a large amount of data (a couple gigs) I need to write to a zip file in Python. I can't load it all into memory at once to pass to the .writestr method of ZipFile, and I really don't want to feed it all out to disk using temporary files and then read it back. Is there a way to feed a generator or a file-like object to the ZipF...

With Python, how can I ensure that compression of a folder takes place within a particular folder?

I have been able to zip the contents of my folder. But I would like the zipped file to remain in the folder that was just compressed. For example, I've zipped a folder called test in my C: drive. But I would like my "test.zip" file to be contained in C:\test. How can I do this? Thanks in advance. clarification of question with code exam...

How to list the contents of a .zip folder in c#?

How to list the contents of a zipped folder in C#? For example how to know how many items are contained within a zipped folder, and what is their name? ...

Where can I find an example unzipper using zlib?

I'm looking for a bare bones simple example C app for unpacking a zip file using zlib. It must support fairly new version of .zip and must have source right down to the zlib calls. ...

How do you unzip very large files in python?

Using python 2.4 and the built-in ZipFile library, I cannot read very large zip files (greater than 1 or 2 GB) because it wants to store the entire contents of the uncompressed file in memory. Is there another way to do this (either with a third-party library or some other hack), or must I "shell out" and unzip it that way (which isn't ...

Suggestions for a cheap/free .NET library for doing Zip with AES encryption?

I'm trying to find an zip compression and encryption component with encryption suitable for use by the US Federal Government, so I can't use Zip 2.0 encryption, it has to be AES or the like. I've already found SharpZipLib (can't do AES encyrption), and Chilkat (can do AES encryption, but costs money). Am I missing any other options? ...

In Java: How to zip file from byte[] array?

My application is receiving email through SMTP server. There are one or more attachments in the email and email attachment return as byte[] (using sun javamail api). I am trying to zip the attachment files on the fly without writing them to disk first. What is/are possible way to achieve this outcome? ...