# GenomeTools
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The GenomeTools genome analysis system is a free collection of bioinformatics
tools (in the realm of genome informatics) combined into a single binary named
`gt`. It is based on a C library named `libgenometools` which contains a wide
variety of classes for efficient and convenient implementation of sequence and
annotation processing software.

![Overview](https://raw.github.com/genometools/genometools/master/www/github/assets/overview.png)

If you are interested in gene prediction, have a look at
[GenomeThreader](http://genomethreader.org).

### [Platforms](#platforms)

GenomeTools has been designed to run on every POSIX compliant UNIX system, for
example, Linux, macOS, and OpenBSD.

### [Building and Installation](#build-install)

#### Debian-based operating systems

Debian and Ubuntu users can install the most recent
stable version simply using apt, e.g.
```bash
apt-get install genometools
```
(as root) to install the `gt` executable. To install the library and development headers, use
```bash
apt-get install libgenometools0 libgenometools0-dev
```
instead. This is not required to just use the tools.

#### macOS (via Homebrew)

If [Homebrew](https://brew.sh) is installed, GenomeTools can be installed on
supported macOS versions using `brew`:
```bash
brew install genometools
```

#### Building from source

To use GenomeTools on systems that do not have native packages, or to modify
GenomeTools at build time, you need to build from source.
[Source tarballs](https://github.com/genometools/genometools/releases) are
available from GitHub. For instructions on how to build the source by yourself,
have a look at the
[INSTALL](https://github.com/genometools/genometools/blob/master/INSTALL) file.
In most cases (e.g. on a 64-bit Linux system) something like
```bash
make -j4
```
should suffice. On 32-bit systems, add the `32bit=yes` option. Add `cairo=no` if
you do not have the Cairo libraries and their development headers installed.
This will, however, remove *AnnotationSketch* support from the resulting binary.
When your binary has been built, use the `install` target and `prefix` option to
install the compiled binary on your system. Make sure you repeat all the options
from the original `make` run. So
```bash
make -j4 install prefix=~/gt
```
would install the software in the `gt` subdirectory in the current user's home
directory. If no `prefix` option is given, the software will be installed
system-wide (requires root access).

### [Contributing](#contributing)

GenomeTools uses a
[collective code construction contract](http://genometools.org/contract.html)
for contributions (and the [process](http://genometools.org/contribute.html)
explains how to submit a patch). Basically, just fork this repository on GitHub,
start hacking on your own feature branch and submit a pull request when you are
ready. Our recommended coding style is explained in the
[developer's guide](http://genometools.org/documents/devguide.pdf) (among other
technical guidelines).

To report a bug, ask a question, or suggest new features, use the
[GenomeTools issue tracker](https://github.com/genometools/genometools/issues).
