The widgets

version: 1
Date:    30 mai 2016
Author:  José Bollo

• The widgets
  • The widgets
    • signature
    • directory where are stored applications
• Organization of directory of applications
  • Identity of installed files
  • labeling the directories of applications
• organization of data

The widgets

The widgets are described by the technical recommendations widgets and widgets-digsig.

signature

The application framework

This is the original part of our work here

directory where are stored applications

Applications can be installed in different places: the system itself, extension device. On a phone application are typically installed on the sd card.

This translates to:

• /usr/applications: system wide applications
• /opt/applications: removable applications

From here those paths are referenced as: “APPDIR”.

Organization of directory of applications

The main path for applications is: APPDIR/PKGID/VER.

Where:

• APPDIR is as defined above
• PKGID is a directory whose name is the package identifier
• VER is the version of the package MAJOR.MINOR

This organization has the advantage to allow several versions to leave together. This is needed for some good reasons (rolling back) and also for less good reasons (user habits).

Identity of installed files

All files are installed as user “userapp” and group “userapp”. All files have rw(x) for user and r-(x) for group and others.

This allows every user to read every file.

labeling the directories of applications

organization of data

The data of a user are in its directory and are labelled using the labels of the application