Generate bash command line completion function for bzr
This script generates a shell function which can be used by bash to automatically complete the currently typed command when the user presses the completion key (usually tab).
It is intended as a bzr plugin, but can be used to some extend as a standalone python script as well.
You only need to do this if you want to use the script as a bzr plugin. Otherwise simply grab the bashcomp.py and place it wherever you want.
To check out the current code from launchpad, use the following commands:
mkdir -p ~/.bazaar/plugins cd ~/.bazaar/plugins bzr checkout lp:bzr-bash-completion bash_completion
To update such an installation, execute this command:
bzr update ~/.bazaar/plugins/bash_completion
The following command should install the latest release of the plugin on your system:
To use this method, you need to have Easy Install installed and also have write access to the required directories. So maybe you should execute this command as root or through sudo. Or you want to install to a different location.
If you have grabbed a source code tarball, or want to install from a bzr checkout in a different place than your bazaar plugins directory, then you should use the setup.py script shipped with the code:
If you want to install the plugin only for your own user account, you might wish to pass the option --user or --home=$HOME to that command. For further information please read the manuals of distutils as well as setuptools or distribute, whatever is available on your system, or have a look at the command line help:
./setup.py install --help
This is the preferred method of generating the completion function, as it will ensure proper bzr initialization.
eval "`bzr bash-completion`"
Running the above command automatically from your ~/.bashrc file or similar can cause annoying delays in the startup of your shell. To avoid this problem, you can delay the generation of the completion function until you actually need it.
To do so, source the file lazy.sh shipped with this package from your ~/.bashrc file or add it to your ~/.bash_completion if your setup uses such a file. On a system-wide installation, the directory /usr/share/bash-completion/ might contain such bash completion scripts.
If you installed bzr-bash-completion from the repository or a source tarball, you find the lazy.sh script in the root of the source tree. If you installed the plugin using easy_install, you should grab the script manually from the bzr repository, e.g. through the bazaar web interface on launchpad.
Note that the full completion function is generated only once per shell session. If you update your bzr installation or change the set of installed plugins, then you might wish to regenerate the completion function manually as described above in order for completion to take these changes into account.
As an alternative, if bzrlib is available to python scripts, the following invocation should yield the same results without requiring you to add a plugin:
This approach might have some issues, though, and provides less options than the bzr plugin. Therefore if you have the choice, go for the plugin setup.
The plugin (or script) is designed to generate a completion function containing all the required information about the possible completions. This is usually only done once when bash initializes. After that, no more invocations of bzr are required. This makes the function much faster than a possible implementation talking to bzr for each and every completion. On the other hand, this has the effect that updates to bzr or its plugins won’t show up in the completions immediately, but only after the completion function has been regenerated.
As this is built upon a bash completion script originally included in the bzr source tree, and as the bzr sources are covered by the GPL 2, this script here is licensed under these same terms.
If you require a more liberal license, you’ll have to contact all those who contributed code to this plugin, be it for bash or for python.
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
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