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SpaceVim Layers: tags

Description

This layer provide tags manager for project. This layer need core layer’s project manager feature.

Features

Install

GNU Global (gtags)

To use gtags, you first have to install GNU Global.

You can install global from the software repository of your OS; however, many OS distributions are out of date, and you will probably be missing support for pygments and exuberant ctags, and thus support for many languages. We recommend installing from source. If not for example to install on Ubuntu:

sudo apt-get install global

Install on OSX using Homebrew

brew install global --with-pygments --with-ctags

Install on *nix from source

To take full advantage of global you should install 2 extra packages in addition to global: pygments and ctags (exuberant). You can do this using your normal OS package manager, e.g., on Ubuntu

sudo apt-get install exuberant-ctags python-pygments

or e.g., Archlinux:

sudo pacman -S ctags python-pygments

Download the latest tar.gz archive, then run these commands:

tar xvf global-6.5.3.tar.gz
cd global-6.5.3
./configure --with-exuberant-ctags=/usr/bin/ctags
make
sudo make install
Configure your environment to use pygments and ctags

To be able to use pygments and ctags, you need to copy the sample gtags.conf either to /etc/gtags.conf or $HOME/.globalrc. For example:

cp gtags.conf ~/.globalrc

Additionally you should define GTAGSLABEL in your shell startup file e.g. with sh/ksh:

echo export GTAGSLABEL=pygments >> .profile

Load tags layer

To use this configuration layer, add it to your ~/.SpaceVim.d/init.vim.

call SpaceVim#layers#load('tags')

Usage

Before using the gtags, remember to create a GTAGS database by the following methods:

cd /path/to/project/root
gtags

If the language is not directly supported by gtags, and you have not set the GTAGSLABEL environment variable, use this command instead:

gtags --gtagslabel=pygments

Language Support

Built-in languages

If you do not have ctags or pygments enabled gtags will only produce tags for the following languages:

Exuberant ctags languages

If you have enabled exuberant ctags and use that as the backend (i.e., GTAGSLABEL=ctags or –gtagslabel=ctags) the following additional languages will have tags created for them:

Universal ctags languages

Instead, If you have installed the newer/beta universal ctags and use that as the backend (i.e., GTAGSLABEL=ctags or –gtagslabel=ctags) the following additional languages will have tags created for them:

Pygments languages (plus symbol and reference tags)

In order to look up symbol references for any language not in the built in parser you must use the pygments backend. When this backend is used global actually uses both ctags and pygments to find the definitions and uses of functions and variables as well as “other symbols”.

If you enabled pygments (the best choice) and use that as the backend (i.e., GTAGSLABEL=pygments or –gtagslabel=pygments) the following additional languages will have tags created for them:

Key bindings

Key Binding Description
SPC m g c create a tag database
SPC m g u manually update tag database
SPC m g f jump to a file in tag database
SPC m g d find definitions
SPC m g r find references

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