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The GAP 4 package "PackageManager"
==================================
[](https://github.com/gap-packages/PackageManager/actions?query=workflow%3ACI+branch%3Amaster)
[](https://codecov.io/gh/gap-packages/PackageManager)
[](https://mybinder.org/v2/gh/gap-packages/PackageManager/master?filepath=PackageManager-demo.ipynb)
A basic collection of simple functions for installing and removing GAP packages,
with the eventual aim of becoming a full package manager for the GAP system.
Example invocations:
gap> LoadPackage("PackageManager");
gap> InstallPackage("digraphs");
gap> InstallPackage("https://github.com/gap-packages/Semigroups.git");
gap> InstallPackage("https://github.com/gap-packages/design/releases/download/v1.8.2/design-1.8.2.tar.gz");
gap> RemovePackage("semigroups");
By default, verbose information about a command's progress is printed to the
screen. To see less of this information, try using:
gap> SetInfoLevel(InfoPackageManager, 1);
For more information on the features of PackageManager, see the documentation at
https://gap-packages.github.io/PackageManager/doc/chap1.html
or enter GAP and call, for example,
gap> ?InstallPackage
Installing and configuring GAP using PackageManager
---------------------------------------------------
It should be possible to install GAP from source, and install all required
packages, using nothing but GAP and PackageManager. The following instructions
attempt to install GAP in your home directory `~`, with the package manager in a
`~/.gap/pkg` directory. This should work on a Debian/Ubuntu machine, but might
need some alterations on a Mac.
First, make sure you've got the required dependencies for GAP installed on your
computer. On a Debian/Ubuntu machine you can get the required software using:
```bash
sudo apt install autoconf build-essential curl git graphviz libtool libgmp-dev texlive-full
```
On a Mac, you can get the required software by installing Homebrew, and running:
```bash
brew install git autoconf automake curl GMP graphviz libtool
```
Now, to install GAP and PackageManager, open a terminal window and enter the following:
```bash
cd ~
git clone git@github.com:gap-system/gap.git
cd gap
./autogen.sh
./configure
make
cd ~/
mkdir .gap
cd .gap
mkdir pkg
cd pkg
git clone git@github.com:gap-packages/PackageManager.git
cd ~/gap
./gap --bare
```
In the GAP window that opens, enter the following:
```gap
LoadPackage("PackageManager");
InstallRequiredPackages();
quit;
```
Now compile the documentation using:
```bash
make doc
```
You should now be able to load GAP with `./gap` and everything should work
normally. Further required packages can be installed with `InstallPackage` when
you need them.
Citing
------
Please cite this package using the following format:
[YouXX]
M. Young,
PackageManager (GAP package),
Easily download and install GAP packages,
Version X.Y.Z (20XX),
https://github.com/gap-packages/PackageManager.
Acknowledgements
----------------
<table class="none">
<tr>
<td>
<img src="https://opendreamkit.org/public/logos/odk-elected-logo.svg" width="128">
</td>
<td>
PackageManager was partly created with funding from the OpenDreamKit project: https://opendreamkit.org
</td>
</tr>
<tr>
<td>
<img src="http://opendreamkit.org/public/logos/Flag_of_Europe.svg" width="128">
</td>
<td>
This infrastructure is part of a project that has received funding from the
European Union's Horizon 2020 research and innovation programme under grant
agreement No 676541.
</td>
</tr>
</table>
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2026-03-28
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