277 lines
8.5 KiB
VimL
277 lines
8.5 KiB
VimL
" Copyright (C) 2012 Hong Xu
|
|
|
|
" This file is part of vim-live-preview.
|
|
|
|
" vim-live-preview is free software: you can redistribute it and/or modify it
|
|
" under the terms of the GNU General Public License as published by the Free
|
|
" Software Foundation, either version 3 of the License, or (at your option)
|
|
" any later version.
|
|
|
|
" vim-live-preview is distributed in the hope that it will be useful, but
|
|
" WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
" or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
" more details.
|
|
|
|
" You should have received a copy of the GNU General Public License along with
|
|
" vim-live-preview. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
if v:version < 700
|
|
finish
|
|
endif
|
|
|
|
" Check whether this script is already loaded
|
|
if exists("g:loaded_vim_live_preview")
|
|
finish
|
|
endif
|
|
let g:loaded_vim_live_preview = 1
|
|
|
|
" Check mkdir feature
|
|
if (!exists("*mkdir"))
|
|
echohl ErrorMsg
|
|
echo 'vim-llp: mkdir required'
|
|
echohl None
|
|
finish
|
|
endif
|
|
|
|
" Setup python
|
|
if (has('python3'))
|
|
let s:py_exe = 'python3'
|
|
elseif (has('python'))
|
|
let s:py_exe = 'python'
|
|
else
|
|
echohl ErrorMsg
|
|
echo 'vim-llp: python required'
|
|
echohl None
|
|
finish
|
|
endif
|
|
|
|
let s:saved_cpo = &cpo
|
|
set cpo&vim
|
|
|
|
let s:previewer = ''
|
|
|
|
" Run a shell command in background
|
|
function! s:RunInBackground(cmd)
|
|
|
|
execute s:py_exe "<< EEOOFF"
|
|
|
|
try:
|
|
subprocess.Popen(
|
|
vim.eval('a:cmd'),
|
|
shell = True,
|
|
universal_newlines = True,
|
|
stdout=open(os.devnull, 'w'), stderr=subprocess.STDOUT)
|
|
|
|
except:
|
|
pass
|
|
EEOOFF
|
|
endfunction
|
|
|
|
function! s:Compile()
|
|
|
|
if !exists('b:livepreview_buf_data') ||
|
|
\ has_key(b:livepreview_buf_data, 'preview_running') == 0
|
|
return
|
|
endif
|
|
|
|
" Change directory to handle properly sourced files with \input and bib
|
|
" TODO: get rid of lcd
|
|
execute 'lcd ' . b:livepreview_buf_data['root_dir']
|
|
|
|
" Write the current buffer in a temporary file
|
|
silent exec 'write! ' . b:livepreview_buf_data['tmp_src_file']
|
|
|
|
call s:RunInBackground(b:livepreview_buf_data['run_cmd'])
|
|
|
|
lcd -
|
|
endfunction
|
|
|
|
function! s:StartPreview(...)
|
|
let b:livepreview_buf_data = {}
|
|
|
|
let b:livepreview_buf_data['py_exe'] = s:py_exe
|
|
|
|
" Create a temp directory for current buffer
|
|
execute s:py_exe "<< EEOOFF"
|
|
vim.command("let b:livepreview_buf_data['tmp_dir'] = '" +
|
|
tempfile.mkdtemp(prefix="vim-latex-live-preview-") + "'")
|
|
EEOOFF
|
|
|
|
let b:livepreview_buf_data['tmp_src_file'] =
|
|
\ b:livepreview_buf_data['tmp_dir'] .
|
|
\ expand('%:p:r')
|
|
|
|
" Guess the root file which will be compiled, using first the argument
|
|
" passed, then the first line declaration of the source file and
|
|
" eventually fallback to the current file.
|
|
" TODO: emulate -parse-first-line properly
|
|
let l:root_line = substitute(getline(1),
|
|
\ '\v^\s*\%\s*!tex\s*root\s*\=\s*(.*)\s*$',
|
|
\ '\1', '')
|
|
if (a:0 > 0)
|
|
let l:root_file = fnamemodify(a:1, ':p')
|
|
elseif (l:root_line != getline(1) && strlen(l:root_line) > 0) " TODO: existence of `% !TEX` declaration condition must be cleaned...
|
|
let l:root_file = fnamemodify(l:root_line, ':p')
|
|
else
|
|
let l:root_file = b:livepreview_buf_data['tmp_src_file']
|
|
endif
|
|
|
|
" Hack for complex project trees: recreate the tree in tmp_dir
|
|
" Build tree for tmp_src_file (copy of the current buffer)
|
|
let l:tmp_src_dir = fnamemodify(b:livepreview_buf_data['tmp_src_file'], ':p:h')
|
|
if (!isdirectory(l:tmp_src_dir))
|
|
silent call mkdir(l:tmp_src_dir, 'p')
|
|
endif
|
|
" Build tree for root_file (main tex file, which might be tmp_src_file,
|
|
" ie. the current file)
|
|
if (l:root_file == b:livepreview_buf_data['tmp_src_file']) " if root file is the current file
|
|
let l:tmp_root_dir = l:tmp_src_dir
|
|
else
|
|
let l:tmp_root_dir = b:livepreview_buf_data['tmp_dir'] . fnamemodify(l:root_file, ':p:h')
|
|
if (!isdirectory(l:tmp_root_dir))
|
|
silent call mkdir(l:tmp_root_dir, 'p')
|
|
endif
|
|
endif
|
|
|
|
" Escape pathnames
|
|
let l:root_file = fnameescape(l:root_file)
|
|
let l:tmp_root_dir = fnameescape(l:tmp_root_dir)
|
|
let b:livepreview_buf_data['tmp_dir'] = fnameescape(b:livepreview_buf_data['tmp_dir'])
|
|
let b:livepreview_buf_data['tmp_src_file'] = fnameescape(b:livepreview_buf_data['tmp_src_file'])
|
|
|
|
" Change directory to handle properly sourced files with \input and bib
|
|
" TODO: get rid of lcd
|
|
if (l:root_file == b:livepreview_buf_data['tmp_src_file']) " if root file is the current file
|
|
let b:livepreview_buf_data['root_dir'] = fnameescape(expand('%:p:h'))
|
|
else
|
|
let b:livepreview_buf_data['root_dir'] = fnamemodify(l:root_file, ':p:h')
|
|
endif
|
|
execute 'lcd ' . b:livepreview_buf_data['root_dir']
|
|
|
|
" Write the current buffer in a temporary file
|
|
silent exec 'write! ' . b:livepreview_buf_data['tmp_src_file']
|
|
|
|
let l:tmp_out_file = l:tmp_root_dir . '/' .
|
|
\ fnamemodify(l:root_file, ':t:r') . '.pdf'
|
|
|
|
let b:livepreview_buf_data['run_cmd'] =
|
|
\ 'env ' .
|
|
\ 'TEXMFOUTPUT=' . l:tmp_root_dir . ' ' .
|
|
\ 'TEXINPUTS=' . l:tmp_root_dir
|
|
\ . ':' . b:livepreview_buf_data['root_dir']
|
|
\ . ': ' .
|
|
\ s:engine . ' ' .
|
|
\ '-shell-escape ' .
|
|
\ '-interaction=nonstopmode ' .
|
|
\ '-output-directory=' . l:tmp_root_dir . ' ' .
|
|
\ l:root_file
|
|
" lcd can be avoided thanks to root_dir in TEXINPUTS
|
|
|
|
silent call system(b:livepreview_buf_data['run_cmd'])
|
|
if v:shell_error != 0
|
|
echo 'Failed to compile'
|
|
lcd -
|
|
return
|
|
endif
|
|
|
|
" Enable compilation of bibliography:
|
|
let l:bib_files = split(glob(b:livepreview_buf_data['root_dir'] . '/**/*.bib')) " TODO: fails if unused bibfiles
|
|
if len(l:bib_files) > 0
|
|
for bib_file in l:bib_files
|
|
let bib_fn = fnamemodify(bib_file, ':t')
|
|
call writefile(readfile(bib_file),
|
|
\ l:tmp_root_dir . '/' . bib_fn) " TODO: may fail if same bibfile names in different dirs
|
|
endfor
|
|
|
|
" Update compile command with bibliography
|
|
let b:livepreview_buf_data['run_cmd'] =
|
|
\ 'env ' .
|
|
\ 'TEXMFOUTPUT=' . l:tmp_root_dir . ' ' .
|
|
\ 'TEXINPUTS=' . l:tmp_root_dir
|
|
\ . ':' . b:livepreview_buf_data['root_dir']
|
|
\ . ': ' .
|
|
\ 'bibtex ' . l:tmp_root_dir . '/*.aux' .
|
|
\ ' && ' .
|
|
\ b:livepreview_buf_data['run_cmd']
|
|
|
|
silent call system(b:livepreview_buf_data['run_cmd'])
|
|
endif
|
|
if v:shell_error != 0
|
|
echo 'Failed to compile bibliography'
|
|
lcd -
|
|
return
|
|
endif
|
|
|
|
call s:RunInBackground(s:previewer . ' ' . l:tmp_out_file)
|
|
|
|
lcd -
|
|
|
|
let b:livepreview_buf_data['preview_running'] = 1
|
|
endfunction
|
|
|
|
" Initialization code
|
|
function! s:Initialize()
|
|
let l:ret = 0
|
|
execute s:py_exe "<< EEOOFF"
|
|
try:
|
|
import vim
|
|
import tempfile
|
|
import subprocess
|
|
import os
|
|
except:
|
|
vim.command('let l:ret = 1')
|
|
EEOOFF
|
|
|
|
if l:ret != 0
|
|
return 'Python initialization failed.'
|
|
endif
|
|
|
|
" Get the tex engine
|
|
if exists('g:livepreview_engine')
|
|
let s:engine = g:livepreview_engine
|
|
else
|
|
for possible_engine in ['pdflatex', 'xelatex']
|
|
if executable(possible_engine)
|
|
let s:engine = possible_engine
|
|
break
|
|
endif
|
|
endfor
|
|
endif
|
|
|
|
" Get the previewer
|
|
if exists('g:livepreview_previewer')
|
|
let s:previewer = g:livepreview_previewer
|
|
else
|
|
for possible_previewer in ['evince', 'okular']
|
|
if executable(possible_previewer)
|
|
let s:previewer = possible_previewer
|
|
break
|
|
endif
|
|
endfor
|
|
endif
|
|
|
|
return 0
|
|
endfunction
|
|
|
|
|
|
let s:init_msg = s:Initialize()
|
|
|
|
if type(s:init_msg) == type('')
|
|
echohl ErrorMsg
|
|
echo 'vim-live-preview: ' . s:init_msg
|
|
echohl None
|
|
endif
|
|
|
|
unlet! s:init_msg
|
|
|
|
command! -nargs=* LLPStartPreview call s:StartPreview(<f-args>)
|
|
|
|
autocmd CursorHold,CursorHoldI,BufWritePost * call s:Compile()
|
|
|
|
let &cpo = s:saved_cpo
|
|
unlet! s:saved_cpo
|
|
|
|
" vim703: cc=80
|
|
" vim:fdm=marker et ts=4 tw=78 sw=4
|