140 lines
3.9 KiB
VimL
140 lines
3.9 KiB
VimL
let s:go_major_version = ""
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function! go#mod#Format() abort
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" go mod only exists in `v1.11`
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if empty(s:go_major_version)
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let tokens = matchlist(go#util#System("go version"), '\d\+.\(\d\+\) ')
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let s:go_major_version = str2nr(tokens[1])
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endif
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if s:go_major_version < "11"
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call go#util#EchoError("Go v1.11 is required to format go.mod file")
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return
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endif
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let fname = fnamemodify(expand("%"), ':p:gs?\\?/?')
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" Save cursor position and many other things.
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let l:curw = winsaveview()
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" Write current unsaved buffer to a temp file
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let l:tmpname = tempname() . '.mod'
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call writefile(go#util#GetLines(), l:tmpname)
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if go#util#IsWin()
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let l:tmpname = tr(l:tmpname, '\', '/')
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endif
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let current_col = col('.')
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let l:args = ['go', 'mod', 'edit', '--fmt', l:tmpname]
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let [l:out, l:err] = go#util#Exec(l:args)
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let diff_offset = len(readfile(l:tmpname)) - line('$')
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if l:err == 0
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call go#mod#update_file(l:tmpname, fname)
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else
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let errors = s:parse_errors(fname, l:out)
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call s:show_errors(errors)
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endif
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" We didn't use the temp file, so clean up
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call delete(l:tmpname)
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" Restore our cursor/windows positions.
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call winrestview(l:curw)
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" be smart and jump to the line the new statement was added/removed
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call cursor(line('.') + diff_offset, current_col)
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" Syntax highlighting breaks less often.
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syntax sync fromstart
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endfunction
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" update_file updates the target file with the given formatted source
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function! go#mod#update_file(source, target)
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" remove undo point caused via BufWritePre
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try | silent undojoin | catch | endtry
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let old_fileformat = &fileformat
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if exists("*getfperm")
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" save file permissions
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let original_fperm = getfperm(a:target)
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endif
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call rename(a:source, a:target)
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" restore file permissions
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if exists("*setfperm") && original_fperm != ''
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call setfperm(a:target , original_fperm)
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endif
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" reload buffer to reflect latest changes
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silent edit!
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let &fileformat = old_fileformat
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let &syntax = &syntax
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let l:listtype = go#list#Type("GoModFmt")
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" the title information was introduced with 7.4-2200
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" https://github.com/vim/vim/commit/d823fa910cca43fec3c31c030ee908a14c272640
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if has('patch-7.4.2200')
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" clean up previous list
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if l:listtype == "quickfix"
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let l:list_title = getqflist({'title': 1})
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else
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let l:list_title = getloclist(0, {'title': 1})
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endif
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else
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" can't check the title, so assume that the list was for go fmt.
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let l:list_title = {'title': 'Format'}
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endif
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if has_key(l:list_title, "title") && l:list_title['title'] == "Format"
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call go#list#Clean(l:listtype)
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endif
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endfunction
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" parse_errors parses the given errors and returns a list of parsed errors
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function! s:parse_errors(filename, content) abort
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let splitted = split(a:content, '\n')
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" list of errors to be put into location list
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let errors = []
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for line in splitted
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let tokens = matchlist(line, '^\(.\{-}\):\(\d\+\):\s*\(.*\)')
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if !empty(tokens)
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call add(errors,{
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\"filename": a:filename,
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\"lnum": tokens[2],
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\"text": tokens[3],
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\ })
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endif
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endfor
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return errors
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endfunction
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" show_errors opens a location list and shows the given errors. If the given
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" errors is empty, it closes the the location list
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function! s:show_errors(errors) abort
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let l:listtype = go#list#Type("GoModFmt")
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if !empty(a:errors)
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call go#list#Populate(l:listtype, a:errors, 'Format')
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call go#util#EchoError("GoModFmt returned error")
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endif
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" this closes the window if there are no errors or it opens
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" it if there is any
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call go#list#Window(l:listtype, len(a:errors))
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endfunction
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function! go#mod#ToggleModFmtAutoSave() abort
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if go#config#ModFmtAutosave()
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call go#config#SetModFmtAutosave(0)
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call go#util#EchoProgress("auto mod fmt disabled")
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return
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end
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call go#config#SetModFmtAutosave(1)
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call go#util#EchoProgress("auto mod fmt enabled")
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endfunction
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