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|
if polyglot#init#is_disabled(expand('<sfile>:p'), 'zig', 'autoload/zig/fmt.vim')
finish
endif
" Adapted from fatih/vim-go: autoload/go/fmt.vim
"
" Copyright 2011 The Go Authors. All rights reserved.
" Use of this source code is governed by a BSD-style
" license that can be found in the LICENSE file.
"
function! zig#fmt#Format() abort
if zig#config#FmtExperimental()
" Using winsaveview to save/restore cursor state has the problem of
" closing folds on save:
" https://github.com/fatih/vim-go/issues/502
" One fix is to use mkview instead. Unfortunately, this sometimes causes
" other bad side effects:
" https://github.com/fatih/vim-go/issues/728
" and still closes all folds if foldlevel>0:
" https://github.com/fatih/vim-go/issues/732
let l:curw = {}
try
mkview!
catch
let l:curw = winsaveview()
endtry
" save our undo file to be restored after we are done. This is needed to
" prevent an additional undo jump due to BufWritePre auto command and also
" restore 'redo' history because it's getting being destroyed every
" BufWritePre
let tmpundofile = tempname()
exe 'wundo! ' . tmpundofile
else
" Save cursor position and many other things.
let l:curw = winsaveview()
endif
" Save cursor position and many other things.
let l:curw = winsaveview()
let bin_name = zig#config#FmtCommand()
" Get current position in file
let current_col = col('.')
let orig_line_count = line('$')
" Save current buffer first, else fmt will run on the original file and we
" will lose our changes.
silent! execute 'write' expand('%')
let [l:out, l:err] = zig#fmt#run(bin_name, expand('%'))
if l:err == 0
call zig#fmt#update_file(expand('%'))
elseif !zig#config#FmtFailSilently()
let errors = s:parse_errors(expand('%'), out)
call s:show_errors(errors)
endif
let diff_offset = line('$') - orig_line_count
if zig#config#FmtExperimental()
" restore our undo history
silent! exe 'rundo ' . tmpundofile
call delete(tmpundofile)
" Restore our cursor/windows positions, folds, etc.
if empty(l:curw)
silent! loadview
else
call winrestview(l:curw)
endif
else
" Restore our cursor/windows positions.
call winrestview(l:curw)
endif
" be smart and jump to the line the new statement was added/removed
call cursor(line('.') + diff_offset, current_col)
" Syntax highlighting breaks less often.
syntax sync fromstart
endfunction
" update_file updates the target file with the given formatted source
function! zig#fmt#update_file(target)
" remove undo point caused via BufWritePre
try | silent undojoin | catch | endtry
" reload buffer to reflect latest changes
silent edit!
let l:listtype = zig#list#Type("ZigFmt")
" the title information was introduced with 7.4-2200
" https://github.com/vim/vim/commit/d823fa910cca43fec3c31c030ee908a14c272640
if has('patch-7.4.2200')
" clean up previous list
if l:listtype == "quickfix"
let l:list_title = getqflist({'title': 1})
else
let l:list_title = getloclist(0, {'title': 1})
endif
else
" can't check the title, so assume that the list was for go fmt.
let l:list_title = {'title': 'Format'}
endif
if has_key(l:list_title, "title") && l:list_title['title'] == "Format"
call zig#list#Clean(l:listtype)
endif
endfunction
" run runs the gofmt/goimport command for the given source file and returns
" the output of the executed command. Target is the real file to be formatted.
function! zig#fmt#run(bin_name, target)
let l:cmd = []
call extend(cmd, a:bin_name)
call extend(cmd, [a:target])
return zig#util#Exec(l:cmd)
endfunction
" parse_errors parses the given errors and returns a list of parsed errors
function! s:parse_errors(filename, content) abort
let splitted = split(a:content, '\n')
" list of errors to be put into location list
let errors = []
for line in splitted
let tokens = matchlist(line, '^\(.\{-}\):\(\d\+\):\(\d\+\)\s*\(.*\)')
if !empty(tokens)
call add(errors,{
\"filename": a:filename,
\"lnum": tokens[2],
\"col": tokens[3],
\"text": tokens[4],
\ })
endif
endfor
return errors
endfunction
" show_errors opens a location list and shows the given errors. If the given
" errors is empty, it closes the the location list
function! s:show_errors(errors) abort
let l:listtype = zig#list#Type("ZigFmt")
if !empty(a:errors)
call zig#list#Populate(l:listtype, a:errors, 'Format')
echohl Error | echomsg "zig fmt returned error" | echohl None
endif
" this closes the window if there are no errors or it opens
" it if there is any
call zig#list#Window(l:listtype, len(a:errors))
endfunction
function! zig#fmt#ToggleFmtAutoSave() abort
if zig#config#FmtAutosave()
call zig#config#SetFmtAutosave(0)
call zig#util#EchoProgress("auto fmt disabled")
return
end
call zig#config#SetFmtAutosave(1)
call zig#util#EchoProgress("auto fmt enabled")
endfunction
" vim: sw=2 ts=2 et
|
