Installation¶
Dependencies¶
Bob is built with Python3 (>=3.5). Some additional Python packages are required. They are installed automatically as dependencies.
Apart from the Python dependencies additional run time dependencies could arise, e.g.:
- GNU
bash
>= 4.x - Microsoft PowerShell
- GNU coreutils (
cp
,ln
,sha1sum
, …) - GNU
tar
hexdump
curl
as the default URL SCM downloader- source code management handlers as used (
curl
,cvs
,git
>= 2.13.0,svn
) - extractors based on the supported extensions (
7z
, GNUtar
,gunzip
,unxz
,unzip
) azure-storage-blob
Python library if theazure
archive backend is used. Either install via pip (python3 -m pip install azure-storage-blob
) or download from GitHub.
The actually needed dependencies depend on the used features and the operating system.
Install¶
There are several options how to install Bob on your system. If in doubt stick
to the standard pip
method.
If you are unfamiliar with the installation of Python packages make sure to read Installing Packages from the Python Packaging User Guide. The instructions below assume that you have installed Python and that it is available on the command line.
Supported Platforms¶
- Linux
- Windows 10
- MSYS2 (Windows 10)
- Other POSIX platforms should work but are not actively tested
See below for platform specific installation notes.
PyPI release versions¶
To get the latest released version just use pip
to download the package and
its depedencies from PyPI:
$ python3 -m pip install BobBuildTool [--user]
Release versions are supposed to be stable and keep backwards compatibility.
Install latest development version¶
If you want to test pre-release versions you can instruct pip
to fetch
and build the package directly from git:
$ python3 -m pip install --user git+https://github.com/BobBuildTool/bob
Note that during development minor breakages can occur.
Hacking on Bob¶
For the basic hacking there is no installation needed. Just clone the repository:
$ git clone https://github.com/BobBuildTool/bob.git
$ cd bob
and add this directory to your $PATH
or set a symlink to bob
from a
directory that is already in $PATH
. You will have to manually install all
required dependencies and the bash completion, though.
Attention
The pip install -e .
resp. python3 setup.py develop
commands do
not work for Bob. The problem is that these installtion variants are only
really working for pure python projects. In contrast to that Bob comes with
manpages and C helper applets that are not built by these commands.
The following additional packages and Python modules that are not part of the standard library and need to be installed:
- PyYAML. Either install via pip (
python3 -m pip install PyYAML
) or the package that comes with your distribution (e.g. python3-yaml on Debian). - schema. Either install via pip (
python3 -m pip install schema
) or the package that comes with your distribution (e.g. python3-schema on Debian). - python-magic. Either install via pip (
python3 -m pip install python-magic
) or the package that comes with your distribution (e.g. python3-magic on Debian). - pyparsing. Either install via pip (
python3 -m pip install pyparsing
) or the package that comes with your distribution (e.g. python3-pyparsing on Debian).
To fully run Bob you need the following tools:
gcc
- python3-sphinx
The compiler is only required on Linux.
Linux/POSIX platform notes¶
Shell completion¶
Bob comes with a bash completion script. If you installed Bob the completion
should already be available (given that $(DESTDIR)/share/bash-completion/completions
exists on your system). Otherwise simply source the script
contrib/bash-completion/bob from your ~/.bashrc file. Optionally you can copy the
script to some global directory that is picked up automatically (e.g. cp
contrib/bash-completion/bob /etc/bash_completion.d/bob
on Debian).
Zsh is able to understand the completion script too. Enable it with the following steps:
zsh$ autoload bashcompinit
zsh$ bashcompinit
zsh$ source contrib/bash-completion/bob
Sandbox capabilities¶
You might have to tweak your kernel settings in order to use the sandbox feature. Bob uses Linux’s user namespaces to run the build in a clean environment. Check if
$ cat /proc/sys/kernel/unprivileged_userns_clone
1
yields “1”. If the file exists and the setting is 0 you will get an “operation not permitted” error when building. Add the line
kernel.unprivileged_userns_clone = 1
to your /etc/sysctl.conf
(or wherever your distro stores that).
Windows platform notes¶
Bob can be used in two flavours on Windows: as native application or in a MSYS2 POSIX environment. Unless your recipes need Unix tools the native installation is recommended.
Native usage¶
Python comes with extensive documentation about how to install it on Windows. Only the full installer has been tested but the other methods should probably work as well.
Make sure to add the Python interpreter to %PATH%
. If your recipes use Bash
you must additionally install MSYS2 and add the path to bash.exe
after
the native Python interpreter. Otherwise the MSYS2 Python interpreter might be
invoked which does not work.
Note
Windows path lengths have historically been limited to 260 characters.
Starting with Windows 10 the administrator can activate the “Enable Win32
long paths” group policy or you may set the
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem@LongPathsEnabled
registry key to 1
. Either option is sufficient to remove the path length
limitation.
MSYS2¶
Follow the standard MSYS2 installation. Then install python3
and
python-pip
and use one of the install methods above.