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README.md

Subsurface Build Status

This is the README file for Subsurface 4.8.4

Please check the ReleaseNotes.txt for details about new features and changes since Subsurface 4.8.3 (and earlier versions).

Subsurface can be found at http://subsurface-divelog.org

Our user forum is at http://subsurface-divelog.org/user-forum/

Report bugs and issues at https://github.com/Subsurface-divelog/subsurface/issues

License: GPLv2

We frequently make new test versions of Subsurface available at http://subsurface-divelog.org/downloads/test/ and you always can get the latest builds (with some caveats about installability) at https://github.com/Subsurface-divelog/subsurface/releases/tag/continuous

These tend to contain the latest bug fixes and features, but also occasionally the latest bugs and issues. Please understand when using them that these are primarily intended for testing.

You can get the sources to the latest development version from the git repository:

git clone https://github.com/Subsurface-divelog/subsurface.git

You can also fork the repository and browse the sources at the same site, simply using https://github.com/Subsurface-divelog/subsurface

If you want the latest release (instead of the bleeding edge development version) you can either get this via git or the release tar ball. After cloning run the following command:

git checkout v4.8.4  (or whatever the last release is)

or download a tarball from http://subsurface-divelog.org/downloads/Subsurface-4.8.4.tgz

Detailed build instructions can be found in the INSTALL file.

System Requirements

On desktop, the integrated Googlemaps feature of Subsurface requires a GPU driver that has support for at least OpenGL 2.1. If your driver does not support that, you may have to run Subsurface in software renderer mode.

Subsurface will automatically attempt to detect this scenario, but in case in doesn't you may have to enable the software renderer manually with the following:

  1. Learn how to set persistent environment variables on your OS
  2. Set the environment variable 'QT_QUICK_BACKEND' with the value of 'software'

Basic Usage

Install and start from the desktop, or you can run it locally from the build directory:

On Linux:

$ ./subsurface

On Mac:

$ open Subsurface.app

Native builds on Windows are not really supported (the official Windows installers are both cross-built on Linux).

You can give a data file as command line argument, or (once you have set this up in the Preferences) Subsurface picks a default file for you when started from the desktop or without an argument.

If you have a dive computer supported by libdivecomputer, you can just select "Import from Divecomputer" from the "Import" menu, select which dive computer you have (and where it is connected if you need to), and hit "OK".

The latest list of supported dive computers can be found in the file SupportedDivecomputers.txt.

Much more detailed end user instructions can be found from inside Subsurface by selecting Help (typically F1). When building from source this is also available as Documentation/user-manual.html. The documentation for the latest release is also available on-line http://subsurface-divelog.org/documentation/

Contributing

There is a mailing list for developers: subsurface@subsurface-divelog.org Go to http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface to subscribe.

If you want to contribute code, please open a pull request with signed-off commits at https://github.com/Subsurface-divelog/subsurface/pulls (alternatively, you can also send your patches as emails to the developer mailing list).

Either way, if you don't sign off your patches, we will not accept them. This means adding a line that says "Signed-off-by: Name " at the end of each commit, indicating that you wrote the code and have the right to pass it on as an open source patch.

See: http://developercertificate.org/

Also, please write good git commit messages. A good commit message looks like this:

Header line: explain the commit in one line (use the imperative)

Body of commit message is a few lines of text, explaining things
in more detail, possibly giving some background about the issue
being fixed, etc etc.

The body of the commit message can be several paragraphs, and
please do proper word-wrap and keep columns shorter than about
74 characters or so. That way "git log" will show things
nicely even when it's indented.

Make sure you explain your solution and why you're doing what you're
doing, as opposed to describing what you're doing. Reviewers and your
future self can read the patch, but might not understand why a
particular solution was implemented.

Reported-by: whoever-reported-it
Signed-off-by: Your Name <you@example.com>

where that header line really should be meaningful, and really should be just one line. That header line is what is shown by tools like gitk and shortlog, and should summarize the change in one readable line of text, independently of the longer explanation. Please use verbs in the imperative in the commit message, as in "Fix bug that...", "Add file/feature ...", or "Make Subsurface..."

A bit of Subsurface history

In fall of 2011, when a forced lull in kernel development gave him an opportunity to start on a new endeavor, Linus Torvalds decided to tackle his frustration with the lack of decent divelog software on Linux.

Subsurface is the result of the work of him and a team of developers since then. It now supports Linux, Windows and MacOS and allows data import from a large number of dive computers and several existing divelog programs. It provides advanced visualization of the key information provided by a modern dive computer and allows the user to track a wide variety of data about their diving.

In fall of 2012 Dirk Hohndel took over as maintainer of Subsurface.

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