How to add new members to an existing ZipArchive?
I just read the file,
create the ZipArchive instance from the file
add the new member
build the archive
and write it back to a file

All the previous members became 0 length
(can be listed but unzip does not create any files)

Am I missing something?

any idea? thanks.

Ant

I was just trying to use it myself, but because I'm in a rush I've resorted to using Ruby.

Anyone have a couple of simple std.zlib samples they would like to post?


"Ant" <duitoolkit@yahoo.ca> wrote in message news:pan.2004.03.16.03.12.06.886848@yahoo.ca...
>
> How to add new members to an existing ZipArchive?
> I just read the file,
> create the ZipArchive instance from the file
> add the new member
> build the archive
> and write it back to a file
>
> All the previous members became 0 length
> (can be listed but unzip does not create any files)
>
> Am I missing something?
>
> any idea? thanks.
>
> Ant
>

Ant wrote:
> How to add new members to an existing ZipArchive?
> I just read the file,
> create the ZipArchive instance from the file
> add the new member
> build the archive
> and write it back to a file
> 
> All the previous members became 0 length
> (can be listed but unzip does not create any files)
> 
> Am I missing something?
> 
> any idea? thanks.
> 
> Ant
> 

I think you can't in that way.

You must create a ZipArchive object with the zip file you want to open...
then can get the ArchiveMember from directory member, defined:
 (ArchiveMember[char[]] directory;)
Create a New ZipArchive object and add this ArchiveMember plus the files you want... then delete de old zip file and rename the new one created

But I think there is something wrong in std.zip module


regards


Julio

Julio Jiménez wrote:
> Ant wrote:
> 

> I think you can't in that way.
> 
> You must create a ZipArchive object with the zip file you want to open...
> then can get the ArchiveMember from directory member, defined:
>  (ArchiveMember[char[]] directory;)
> Create a New ZipArchive object and add this ArchiveMember plus the files you want... then delete de old zip file and rename the new one created
> 
> But I think there is something wrong in std.zip module
> 
> 
> regards
> 
> 
> Julio
> 

Sorry... yes... you can

a little example:
// Program for testing zlib
// Modified to append a file to a existing zipfile...


import std.file;
import std.date;
import std.zip;
import std.zlib;

int main(char[][] args)
{
    byte[] buffer;
    std.zip.ZipArchive zr;
    char[] zipname;
    ubyte[] data;

    testzlib();
    if (args.length > 1)
 zipname = args[1];
    else
 zipname = "test.zip";
    buffer = cast(byte[])std.file.read(zipname);
    zr = new std.zip.ZipArchive(cast(void[])buffer);
    printf("comment = '%.*s'\n", zr.comment);
    //zr.print();

    foreach (ArchiveMember de; zr.directory)
    {

      printf("date = '%.*s'\n", std.date.toString(std.date.toDtime(de.time)));
      //data = zr.expand(de);

    }

    printf("**Success**\n");

    ArchiveMember am = new ArchiveMember();
    am.compressionMethod = 8;
    am.name = "foo2.bar"; // name for your new archive to append
    am.time = toDosFileTime(getUTCtime());
    //am.extra = cast(ubyte[])"ExTrA";
    am.expandedData = cast(ubyte[])"We all live in a yellow submarine, a yellow submarine";
    am.expandedSize = am.expandedData.length;
    zr.addMember(am);
    void[] data2 = zr.build(); // build  new zip file
    std.file.write(zipname, cast(byte[])data2); // overwrite the old file with new data

    return 0;
}

void arrayPrint(ubyte[] array)
{
    //printf("array %p,%d\n", (void*)array, array.length);
    for (int i = 0; i < array.length; i++)
    {
 printf("%02x ", array[i]);
 if (((i + 1) & 15) == 0)
     printf("\n");
    }
    printf("\n\n");
}

void testzlib()
{
    ubyte[] src = cast(ubyte[])
"the quick brown fox jumps over the lazy dog\r
the quick brown fox jumps over the lazy dog\r
";
    ubyte[] dst;

    arrayPrint(src);
    dst = cast(ubyte[])std.zlib.compress(cast(void[])src);
    arrayPrint(dst);
    src = cast(ubyte[])std.zlib.uncompress(cast(void[])dst);
    arrayPrint(src);
}


but it create a corrupted zip file.... try to test it, its a begining... :-) i only had 5 minutes to test...

later


Julio

On Tue, 16 Mar 2004 11:52:30 +0100, Julio Jiménez wrote:

> Julio Jiménez wrote:
>> Ant wrote:
>> 
> 
>> I think you can't in that way.
>> 
>> You must create a ZipArchive object with the zip file you want to open...
>> then can get the ArchiveMember from directory member, defined:
>>  (ArchiveMember[char[]] directory;)
>> Create a New ZipArchive object and add this ArchiveMember plus the files
>> you want... then delete de old zip file and rename the new one created
>> 
>> But I think there is something wrong in std.zip module

I think you're right.

Anyone has experience witht the zip module?

Ant