The aim of local_vimrc
is to apply settings on files from a same project.
A project is defined by a root directory: everything under the root directory belongs to the project. No need to register every single file in the project, they all belong.
This plugin presents a solution to Yakov Lerner's question on Vim ML.
It searches for _vimrc_local.vim
files in the parents directories and
sources the one found.
Is it possible, after sourcing ~/.exrc, to traverse from
$HOME
down to cwd, and source.exrc
from every directory if present ? (And if cwd is not under$HOME,
just source~/.exrc)
. What do I put into .vimrc to do this ?Example: current dir is
~/a/b/c
. Files are sourced in this order: ~/.exrc, then ~/a/.exrc,~/a/b/.exrc
,~/a/b/c/.exrc
. No messages if some of.exrc
does not exist.
The latest version of this script requires vim 7.0 and lh-vim-lib v3.2.4+. UT v0.1.0 will be required to execute the unit tests.
The easiest way to install this plugin is with vim-addon-manager, or other plugin managers based on vim-pi, that support vim-addon-files -- as this script specifies its dependencies in vim-addon-file format.
ActivateAddons local_vimrc
With Vundle
Plugin 'LucHermitte/lh-vim-lib'
Plugin 'LucHermitte/local_vimrc'
Or, with a NeoBundle version that doesn't support vim-pi yet:
set rtp+=~/.vim/bundle/NeoBundle.vim/
call neobundle#begin(expand('~/.vim/bundle'))
NeoBundleFetch 'Shougo/NeoBundle.vim'
" Line required to force the right plugin name -> lh-vim-lib, and not trunk
NeoBundle 'LucHermitte/lh-vim-lib', {'name': 'lh-vim-lib'}
" Note: I haven't found the syntax to merge the two NeoBundle lines into one...
NeoBundle 'LucHermitte/local_vimrc', {'depends': 'lh-vim-lib'}
call neobundle#end()
NeoBundleCheck
Drop a _vimrc_local.vim
file into any project root directory, and write it
exactly as you would have written a ftplugin.
In other words. The project file is expected to be loaded (/sourced) every time you enter a buffer that corresponds to a file under the project root directory.
As a consequence, you may want to prevent multiple executions of parts the
sourced file: almost everything shall remain identical and shall not need to
be reset.
However some plugins, like
alternate (a.vim), rely
on global variables to tune their behaviour. The settings (global variables)
related to those plugins will require you to update their value every time --
if you expect to have settings that differ from a project to the other. In
order to support such project-aware setting, local_vimrc
lets you in charge
of handling anti-reinclusion guards in project configuration files.
For your project settings prefer buffer-local mappings (:h :map-<buffer>
),
abbreviations(:h :abbreviate-<buffer>
), commands (:h :command-buffer
),
menus (see my fork of buffer-menu), settings (:h :setlocal
), and variables
(:h local-variable
).
N.B.: if you are a plugin writer that want to support configuration variables
that'll dynamically adapt to the current project settings, have a look at my
lh#option#get()
and
lh#dev#option#get()
functions.
The behaviour of this plugin can be tuned with the following options:
-
g:local_vimrc
variable specifies the filenames and filepaths to be searched. The default is"_vimrc_local.vim"
. It can contain a list (:h List
) of pathnames, or a simple string. -
g:local_vimrc_options
dictionary will hold four lists (whitelist
,blacklist
,asklist
, andsandboxlist
) that define how security issues are handled. See Security concerns.
Sometimes we want to set variables (like a project source directory, or
specific template files that override the default project file headers) before
other plugins are triggered.
The typical use case will be from the shell:
# There is a _vimrc_local.vim file in /path/to/myproject/
cd /path/to/myproject/submodule42
gvim foobar.h
In order to use myproject
settings (naming styles, header guards naming
policy, ...), the vimrc_local
file needs to be sourced before any
template-file is expanded.
This plugin provides the :SourceLocalVimrc
command for this purpose. It's up
to the Template Expander Plugin to exploit this feature -- as this moment, only my
fork of mu-template does.
When saved, if the vimrc_local
script has a s:k_version
variable, it will be
incremented automatically. This variable is meant to avoid multiple inclusions
of the script for a given buffer. New vimrc_local
scripts created with the
help of the templates provided with my
mu-template fork are making
use of this variable.
Thanks to the option g:local_vimrc_options
, it's possible to tune which
_vimrc_local
files are sourced, and how.
The four lists g:local_vimrc_options.whitelist
,
g:local_vimrc_options.blacklist
, g:local_vimrc_options.asklist
, and
g:local_vimrc_options.sandboxlist
, will hold lists of pathname patterns.
Depending on the kind of the pattern that is the best match for the current
_vimrc_local
file, the file will be either:
- sourced, if it belongs to the whitelist,
- ignored, if it belongs to the blacklist,
- sourced, if it belongs to the asklist and if the end user says "Yes please, source this file!",
- sourced in the sandbox (
:h sandbox
) if it belongs to the sandboxlist. - or sourced if it belongs to no list (and if it's a local file, and not a file accessed through scp://, http://, ...).
- Any
_vimrc_local
file in$HOME/.vim/
will be sourced. - However, files in
$HOME/.vim/
subdirectories will be ignored. This way, the end-user may specify options he use when editing vim files. See the file I use for instance. _vimrc_local
files under$HOME
are sourced only if the end-user interactively says "yes"._vimrc_local
files under$HOME/..
are ignored.
In order to blindly accept _vimrc_local
files from projects your are working
on, you'll have to add this kind lines into your .vimrc
, after this
plugin has been loaded:
" Sourcing the plugin
ActivateAddons local_vimrc
...
" Let's assume you put all projects you are working on in your
" corporation under $HOME/dev/my_corporation/
call lh#path#munge(g:local_vimrc_options.whitelist, $HOME.'/dev/my_corporation')
" But projects from 3rd parties/projects downloaded from the internet go
" into $HOME/dev/3rdparties/
call lh#path#munge(g:local_vimrc_options.blacklist, $HOME.'/dev/3rdparties')
If you want to override default settings, change them in your .vimrc
after this plugin has been loaded. e.g.:
ActivateAddons local_vimrc
...
" Remove $HOME from the asklist,
call filter(g:local_vimrc_options, 'v:val != $HOME')
" Add it in the sandbox list instead
call lh#path#munge(g:local_vimrc_options.sandboxlist, $HOME)
" Clean the whitelist
let g:local_vimrc_options.whitelist = []
To be fair, there exist alternatives.
Modelines are particularly limited:
- We can't set variables (that tunes other (ft)plugins, like "should the braces of the for-snippet be on a newline ?"),
- nor call function from them (I don't limit myself to coding standards, I also set the makefile to use depending on the current directory)
- Modelines aren't DRY. With modelines, a setting needs to be repeated in every file, if there are too many things to set or tunings to change, it will quickly become difficult to maintain, moreover, it will require the use of a template-expander plugin (which you should consider if you have several vimmers in your project).
- Not every one uses Vim to develop. I don't want to be bothered by other people editor settings, why should I parasite theirs with modelines ?
Vim natively supports .exrc
files (:h .exrc
, § d-) when 'exrc'
is on. This solution is very similar to local_vimrc
. However .exrc
files are executed (sourced in Vim jargon) only on buffers (corresponding to files) which are in the exact same directory. Files in subdirectories won't trigger the execution of the project .exrc
file.
It's possible to add autocommands in our .vimrc
. Autocommands that will detect files under a certain directory to trigger commands (:set xxxxx
, :let b:style='alman'
, :source path/to/project_config.vim
, ...).
If the autocommand executes simple commands (instead of sourcing a file), the solution won't scale when new commands will need to be added.
Autocommands won't scale either as a project location may vary :
- On several machines a project may not be stored in the same path ;
- When branches are stored in different paths, the
.vimrc
may need to be tuned for each branch ; - When several people are using Vim, it's easier to ask them to install a same plugin instead of asking them to maintain and adapt their respective
.vimrc
There exist a quite old (which does NOT mean bad) plugin dedicated to the management of project configuration. I've never used it, I won't be able to tell you why local_vimrc
solution is better or not.
There exist many plugins with the same name or even with similar purpose. Just to name a few, there is for instance:
-
Project oriented plugins:
- Aric Blumer's good old project.vim plugin #69 which addresses other project concerns.
- Tim Pope's Projectionist #4989,
-
local-vimrc plugins:
- Marc Weber's vim-addon-local-vimrc
- Markus "embear" Braun's local_vimrc #441,
- thinca's localrc.vim #3393,
- Tye Zdrojewski's Directory specific settings #1860,
- Document how
local_vimrc
can be used with BuildToolsWrapper to support CMake based projects. - Document how to mix definitions that need to be sourced only once, and
local_vimrc
- doc&test: Support the definition of the project configuration in files put a separate directory (in order to help versioning them).
- doc: Support List of possible names for
vimrc_local
scripts - Support checksum for project configuration from external sources
- v2.2.3 Merge pull requests:
- Incorrect addon-info extension (txt -> json)
- Fix :SourceLocalVimrc path - v2.2.2 Directory lists were incorrectly sorted (bis) + shellslash isssue
- v2.2.1 Directory lists were incorrectly sorted
- v2.2.0 Plugins functions moved to autoload.
Verbose mode is activated by callinglh#local_vimrc#verbose(1)
- v2.1.1 Bug fix in support of regex in white/black/... lists.
- v2.1.0 Whitelist, blacklist & co
Requires lh-vim-lib 3.2.4 - v2.0.1 Updated to match changes in lh-vim-lib 3.2.2.
- v2.0 Code refactored.
-> Search function deported to lh-vim-lib
-> dependencies to vim7 and to lh-vim-lib introduced
Support for directory of local_vimrc_files added. - v1.12 Previous versions of the plugin were hosted on my google-code / lh-misc repository.
- v1.11 Less errors are printed when the file loaded contains errors.
- v1.10
s:k_version
invimrc_local
files is automatically incremented on saving. - v1.9 New command
:SourceLocalVimrc
in order to explicitly load the local-vimrc file before creating new files from a template (We can't just rely onBufNewFile
as there is no guarantyvimrc_local
'sBufNewFile
will be called before the one from the Template Expander Plugin => it's up to the TEP to call the function). - v1.8 No more infinite recursion on file in non existent paths. + patch from cristiklein to support paths with spaces
- v1.7 Don't search a local vimrc with remote paths (ftp://, http, ... )
- v1.6 Sometimes root path is Z:\, which is quite odd
- v1.5 The auto-command is moved to the au-group
LocalVimrc
- v1.4 Stop the recursion when we get to
//
or\\
(UNC paths) - v1.3 More comments.
Trace of the directories searched when'verbose' >= 2
- v1.2 Stops at
$HOME
or at root (/
) - v1.1 Uses
_vimrc_local.vim
- v1.0 Initial solution