| Bram Moolenaar | 60cce2f | 2015-10-13 23:21:27 +0200 | [diff] [blame] | 1 | " Vim filetype plugin file |
| 2 | " Language: Bazel (http://bazel.io) |
| 3 | " Maintainer: David Barnett (https://github.com/google/vim-ft-bzl) |
| 4 | " Last Change: 2015 Aug 11 |
| 5 | |
| 6 | "" |
| 7 | " @section Introduction, intro |
| 8 | " Core settings for the bzl filetype, used for BUILD and *.bzl files for the |
| 9 | " Bazel build system (http://bazel.io/). |
| 10 | |
| 11 | if exists('b:did_ftplugin') |
| 12 | finish |
| 13 | endif |
| 14 | |
| 15 | |
| 16 | " Vim 7.4.051 has opinionated settings in ftplugin/python.vim that try to force |
| 17 | " PEP8 conventions on every python file, but these conflict with Google's |
| 18 | " indentation guidelines. As a workaround, we explicitly source the system |
| 19 | " ftplugin, but save indentation settings beforehand and restore them after. |
| 20 | let s:save_expandtab = &l:expandtab |
| 21 | let s:save_shiftwidth = &l:shiftwidth |
| 22 | let s:save_softtabstop = &l:softtabstop |
| 23 | let s:save_tabstop = &l:tabstop |
| 24 | |
| 25 | " NOTE: Vim versions before 7.3.511 had a ftplugin/python.vim that was broken |
| 26 | " for compatible mode. |
| 27 | let s:save_cpo = &cpo |
| 28 | set cpo&vim |
| 29 | |
| 30 | " Load base python ftplugin (also defines b:did_ftplugin). |
| 31 | source $VIMRUNTIME/ftplugin/python.vim |
| 32 | |
| 33 | " NOTE: Vim versions before 7.4.104 and later set this in ftplugin/python.vim. |
| 34 | setlocal comments=b:#,fb:- |
| 35 | |
| 36 | " Restore pre-existing indentation settings. |
| 37 | let &l:expandtab = s:save_expandtab |
| 38 | let &l:shiftwidth = s:save_shiftwidth |
| 39 | let &l:softtabstop = s:save_softtabstop |
| 40 | let &l:tabstop = s:save_tabstop |
| 41 | |
| 42 | setlocal formatoptions-=t |
| 43 | |
| 44 | " Make gf work with imports in BUILD files. |
| 45 | setlocal includeexpr=substitute(v:fname,'//','','') |
| 46 | |
| 47 | " Enable syntax-based folding, if specified. |
| 48 | if get(g:, 'ft_bzl_fold', 0) |
| 49 | setlocal foldmethod=syntax |
| 50 | setlocal foldtext=BzlFoldText() |
| 51 | endif |
| 52 | |
| 53 | if exists('*BzlFoldText') |
| 54 | finish |
| 55 | endif |
| 56 | |
| 57 | function BzlFoldText() abort |
| 58 | let l:start_num = nextnonblank(v:foldstart) |
| 59 | let l:end_num = prevnonblank(v:foldend) |
| 60 | |
| 61 | if l:end_num <= l:start_num + 1 |
| 62 | " If the fold is empty, don't print anything for the contents. |
| 63 | let l:content = '' |
| 64 | else |
| 65 | " Otherwise look for something matching the content regex. |
| 66 | " And if nothing matches, print an ellipsis. |
| 67 | let l:content = '...' |
| 68 | for l:line in getline(l:start_num + 1, l:end_num - 1) |
| 69 | let l:content_match = matchstr(l:line, '\m\C^\s*name = \zs.*\ze,$') |
| 70 | if !empty(l:content_match) |
| 71 | let l:content = l:content_match |
| 72 | break |
| 73 | endif |
| 74 | endfor |
| 75 | endif |
| 76 | |
| 77 | " Enclose content with start and end |
| 78 | let l:start_text = getline(l:start_num) |
| 79 | let l:end_text = substitute(getline(l:end_num), '^\s*', '', '') |
| 80 | let l:text = l:start_text . ' ' . l:content . ' ' . l:end_text |
| 81 | |
| 82 | " Compute the available width for the displayed text. |
| 83 | let l:width = winwidth(0) - &foldcolumn - (&number ? &numberwidth : 0) |
| 84 | let l:lines_folded = ' ' . string(1 + v:foldend - v:foldstart) . ' lines' |
| 85 | |
| 86 | " Expand tabs, truncate, pad, and concatenate |
| 87 | let l:text = substitute(l:text, '\t', repeat(' ', &tabstop), 'g') |
| 88 | let l:text = strpart(l:text, 0, l:width - len(l:lines_folded)) |
| 89 | let l:padding = repeat(' ', l:width - len(l:lines_folded) - len(l:text)) |
| 90 | return l:text . l:padding . l:lines_folded |
| 91 | endfunction |
| 92 | |
| 93 | let &cpo = s:save_cpo |
| 94 | unlet s:save_cpo |