etlegacy/Update-Installer
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Small cross-platform software update installer
72 commits 6 branches 11 tags 5.3 MiB
C++ 76.3%
Ruby 13%
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Robert Knight 85c4c58dc9 Add a basic GTK update installation dialog and a stub function in UpdateInstaller to restart the main app after the update is complete. 
* Add optional GTK mode to the updater build.  This pulls in a large number of extra dependencies,
   but dependencies which should be fairly ubiquitous on Linux systems.  If these dependencies prove
   to be a problem we could look at providing an alternative, more basic UI and loading the appropriate
   UI dynamically.
 * Implement update progress dialog for GTK.  The dialog needs visual polish but is functional.
2011-08-23 12:29:47 +01:00
external Use zlib from external/zlib to build the minizip library on Win32 2011-08-22 16:37:53 +01:00
src Add a basic GTK update installation dialog and a stub function in UpdateInstaller to restart the main app after the update is complete. 2011-08-23 12:29:47 +01:00
CMakeLists.txt Use zlib from external/zlib to build the minizip library on Win32 2011-08-22 16:37:53 +01:00
README Improve the description of the tool in the README file 2011-08-21 22:27:10 +01:00
TODO Update the TODO file after Mac testing and make a note that elevation on Mac only works when running the app directly on the Mac (as opposed to over an SSH session). 2011-08-22 14:55:31 +01:00

README 

This tool is a component of an auto-update system.  It is responsible for performing
the installation of an update after the necessary files have been downloaded
to a temporary directory.

This tool is responsible for:

 * Reading an XML file specifying the contents of an update.
 
 * Extracting and installing updated files from one or more compressed packages.
   
 * Removing any files which are no longer needed in the new version of the application.

 * Requesting elevated priviledges if required to install the update.

 * Displaying a simple updater UI and re-launching the main application
   once the update is installed.

The tool consists of a single small binary which only has a small number of external 
dependencies that need to be present on the target system.

The external dependencies of the updater binary are:

 * The C++ runtime library (Linux, Mac),
 * pthreads (Linux, Mac),
 * zlib (Linux, Mac)
 * native UI library (Win32 API on Windows, Cocoa on Mac).

To perform an update, the application (or another separate tool) needs to download
the updater binary, an XML file describing the update and one or more zip packages
containing the files for the update to a temporary directory.  It then needs
to invoke the updater, specifying the installation directory, temporary package
directory and path to the update script file.  The updater then installs the
update and restarts the application when done.