213 lines
6 KiB
VimL
213 lines
6 KiB
VimL
" 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.
|
|
"
|
|
" Check out the docs for more information at /doc/vim-go.txt
|
|
"
|
|
function! go#import#SwitchImport(enabled, localname, path, bang) abort
|
|
let view = winsaveview()
|
|
let path = substitute(a:path, '^\s*\(.\{-}\)\s*$', '\1', '')
|
|
|
|
" Quotes are not necessary, so remove them if provided.
|
|
if path[0] == '"'
|
|
let path = strpart(path, 1)
|
|
endif
|
|
if path[len(path)-1] == '"'
|
|
let path = strpart(path, 0, len(path) - 1)
|
|
endif
|
|
|
|
" if given a trailing slash, eg. `github.com/user/pkg/`, remove it
|
|
if path[len(path)-1] == '/'
|
|
let path = strpart(path, 0, len(path) - 1)
|
|
endif
|
|
|
|
if path == ''
|
|
call s:Error('Import path not provided')
|
|
return
|
|
endif
|
|
|
|
if a:bang == "!"
|
|
let [l:out, l:err] = go#util#Exec(['go', 'get', '-u', '-v', path])
|
|
if err != 0
|
|
call s:Error("Can't find import: " . path . ":" . out)
|
|
endif
|
|
endif
|
|
let exists = go#tool#Exists(path)
|
|
if exists == -1
|
|
call s:Error("Can't find import: " . path)
|
|
return
|
|
endif
|
|
|
|
" Extract any site prefix (e.g. github.com/).
|
|
" If other imports with the same prefix are grouped separately,
|
|
" we will add this new import with them.
|
|
" Only up to and including the first slash is used.
|
|
let siteprefix = matchstr(path, "^[^/]*/")
|
|
|
|
let qpath = '"' . path . '"'
|
|
if a:localname != ''
|
|
let qlocalpath = a:localname . ' ' . qpath
|
|
else
|
|
let qlocalpath = qpath
|
|
endif
|
|
let indentstr = 0
|
|
let packageline = -1 " Position of package name statement
|
|
let appendline = -1 " Position to introduce new import
|
|
let deleteline = -1 " Position of line with existing import
|
|
let linesdelta = 0 " Lines added/removed
|
|
|
|
" Find proper place to add/remove import.
|
|
let line = 0
|
|
while line <= line('$')
|
|
let linestr = getline(line)
|
|
|
|
if linestr =~# '^package\s'
|
|
let packageline = line
|
|
let appendline = line
|
|
|
|
elseif linestr =~# '^import\s\+('
|
|
let appendstr = qlocalpath
|
|
let indentstr = 1
|
|
let appendline = line
|
|
let firstblank = -1
|
|
let lastprefix = ""
|
|
while line <= line("$")
|
|
let line = line + 1
|
|
let linestr = getline(line)
|
|
let m = matchlist(getline(line), '^\()\|\(\s\+\)\(\S*\s*\)"\(.\+\)"\)')
|
|
if empty(m)
|
|
if siteprefix == "" && a:enabled
|
|
" must be in the first group
|
|
break
|
|
endif
|
|
" record this position, but keep looking
|
|
if firstblank < 0
|
|
let firstblank = line
|
|
endif
|
|
continue
|
|
endif
|
|
if m[1] == ')'
|
|
" if there's no match, add it to the first group
|
|
if appendline < 0 && firstblank >= 0
|
|
let appendline = firstblank
|
|
endif
|
|
break
|
|
endif
|
|
let lastprefix = matchstr(m[4], "^[^/]*/")
|
|
if a:localname != '' && m[3] != ''
|
|
let qlocalpath = printf('%-' . (len(m[3])-1) . 's %s', a:localname, qpath)
|
|
endif
|
|
let appendstr = m[2] . qlocalpath
|
|
let indentstr = 0
|
|
if m[4] == path
|
|
let appendline = -1
|
|
let deleteline = line
|
|
break
|
|
elseif m[4] < path
|
|
" don't set candidate position if we have a site prefix,
|
|
" we've passed a blank line, and this doesn't share the same
|
|
" site prefix.
|
|
if siteprefix == "" || firstblank < 0 || match(m[4], "^" . siteprefix) >= 0
|
|
let appendline = line
|
|
endif
|
|
elseif siteprefix != "" && match(m[4], "^" . siteprefix) >= 0
|
|
" first entry of site group
|
|
let appendline = line - 1
|
|
break
|
|
endif
|
|
endwhile
|
|
break
|
|
|
|
elseif linestr =~# '^import '
|
|
if appendline == packageline
|
|
let appendstr = 'import ' . qlocalpath
|
|
let appendline = line - 1
|
|
endif
|
|
let m = matchlist(linestr, '^import\(\s\+\)\(\S*\s*\)"\(.\+\)"')
|
|
if !empty(m)
|
|
if m[3] == path
|
|
let appendline = -1
|
|
let deleteline = line
|
|
break
|
|
endif
|
|
if m[3] < path
|
|
let appendline = line
|
|
endif
|
|
if a:localname != '' && m[2] != ''
|
|
let qlocalpath = printf("%s %" . len(m[2])-1 . "s", a:localname, qpath)
|
|
endif
|
|
let appendstr = 'import' . m[1] . qlocalpath
|
|
endif
|
|
|
|
elseif linestr =~# '^\(var\|const\|type\|func\)\>'
|
|
break
|
|
|
|
endif
|
|
let line = line + 1
|
|
endwhile
|
|
|
|
" Append or remove the package import, as requested.
|
|
if a:enabled
|
|
if deleteline != -1
|
|
call s:Error(qpath . ' already being imported')
|
|
elseif appendline == -1
|
|
call s:Error('No package line found')
|
|
else
|
|
if appendline == packageline
|
|
call append(appendline + 0, '')
|
|
call append(appendline + 1, 'import (')
|
|
call append(appendline + 2, ')')
|
|
let appendline += 2
|
|
let linesdelta += 3
|
|
let appendstr = qlocalpath
|
|
let indentstr = 1
|
|
endif
|
|
call append(appendline, appendstr)
|
|
execute appendline + 1
|
|
if indentstr
|
|
execute 'normal! >>'
|
|
endif
|
|
let linesdelta += 1
|
|
endif
|
|
else
|
|
if deleteline == -1
|
|
call s:Error(qpath . ' not being imported')
|
|
else
|
|
execute deleteline . 'd'
|
|
let linesdelta -= 1
|
|
|
|
if getline(deleteline-1) =~# '^import\s\+(' && getline(deleteline) =~# '^)'
|
|
" Delete empty import block
|
|
let deleteline -= 1
|
|
execute deleteline . "d"
|
|
execute deleteline . "d"
|
|
let linesdelta -= 2
|
|
endif
|
|
|
|
if getline(deleteline) == '' && getline(deleteline - 1) == ''
|
|
" Delete spacing for removed line too.
|
|
execute deleteline . "d"
|
|
let linesdelta -= 1
|
|
endif
|
|
endif
|
|
endif
|
|
|
|
" Adjust view for any changes.
|
|
let view.lnum += linesdelta
|
|
let view.topline += linesdelta
|
|
if view.topline < 0
|
|
let view.topline = 0
|
|
endif
|
|
|
|
" Put buffer back where it was.
|
|
call winrestview(view)
|
|
|
|
endfunction
|
|
|
|
|
|
function! s:Error(s) abort
|
|
echohl Error | echo a:s | echohl None
|
|
endfunction
|
|
|
|
|
|
" vim: sw=2 ts=2 et
|