Zipvfs

Compiling And Using with System.Data.SQLite
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How To Compile And Use ZIPVFS with System.Data.SQLite

1.0 Introduction

This document explains how to compile an extended version of System.Data.SQLite that is able to read and write compressed database files using ZIPVFS.

2.0 Obtaining and Compiling zlib

The complete source code for zlib can be obtained from the official zlib project web site:

http://zlib.net/

In order to compile the zlib LIB for Win32, the following command can be used from a Visual Studio command prompt from within the zlib source code directory:

NMAKE /f win32\Makefile.msc zlib.lib

3.0 Compiling System.Data.SQLite with ZIPVFS support for Win32

This section assumes that the System.Data.SQLite source code is present in a directory named "dotnet" that is a peer of the root ZIPVFS source code directory. This section also assumes that the zlib source code directory is accessible via a junction within the "src" ZIPVFS source code directory, created using commands similar to the following:

CD /D src
MKLINK /J zlib-1.2.11 C:\full\path\to\zlib-1.2.11

To build System.Data.SQLite with ZIPVFS, the following command can be used from a command prompt from within the root ZIPVFS source code directory:

..\dotnet\Externals\Eagle\bin\EagleShell.exe -file src\buildSds.eagle

4.0 Using System.Data.SQLite with ZIPVFS support

Opening a ZIPVFS database with System.Data.SQLite requires using a connection string similar to one of the following:

"Data Source=database.db;VfsName=zlib;ZipVfsVersion=v2;"
"FullUri=file:database.db?vfs=zipvfs&zv=zlib;ZipVfsVersion=v3;"