vimrc/sources_non_forked/vim-go/plugin/go.vim
2017-05-26 11:30:32 +02:00

215 lines
5.8 KiB
VimL

" install necessary Go tools
if exists("g:go_loaded_install")
finish
endif
let g:go_loaded_install = 1
" these packages are used by vim-go and can be automatically installed if
" needed by the user with GoInstallBinaries
let s:packages = [
\ "github.com/nsf/gocode",
\ "github.com/alecthomas/gometalinter",
\ "golang.org/x/tools/cmd/goimports",
\ "golang.org/x/tools/cmd/guru",
\ "golang.org/x/tools/cmd/gorename",
\ "github.com/golang/lint/golint",
\ "github.com/rogpeppe/godef",
\ "github.com/kisielk/errcheck",
\ "github.com/jstemmer/gotags",
\ "github.com/klauspost/asmfmt/cmd/asmfmt",
\ "github.com/fatih/motion",
\ "github.com/fatih/gomodifytags",
\ "github.com/zmb3/gogetdoc",
\ "github.com/josharian/impl",
\ "github.com/dominikh/go-tools/cmd/keyify",
\ ]
" These commands are available on any filetypes
command! GoInstallBinaries call s:GoInstallBinaries(-1)
command! GoUpdateBinaries call s:GoInstallBinaries(1)
command! -nargs=? -complete=dir GoPath call go#path#GoPath(<f-args>)
" GoInstallBinaries downloads and install all necessary binaries stated in the
" packages variable. It uses by default $GOBIN or $GOPATH/bin as the binary
" target install directory. GoInstallBinaries doesn't install binaries if they
" exist, to update current binaries pass 1 to the argument.
function! s:GoInstallBinaries(updateBinaries)
let err = s:CheckBinaries()
if err != 0
return
endif
if go#path#Default() == ""
echohl Error
echomsg "vim.go: $GOPATH is not set and 'go env GOPATH' returns empty"
echohl None
return
endif
let go_bin_path = go#path#BinPath()
" change $GOBIN so go get can automatically install to it
let $GOBIN = go_bin_path
" old_path is used to restore users own path
let old_path = $PATH
" vim's executable path is looking in PATH so add our go_bin path to it
let $PATH = go_bin_path . go#util#PathListSep() . $PATH
" when shellslash is set on MS-* systems, shellescape puts single quotes
" around the output string. cmd on Windows does not handle single quotes
" correctly. Unsetting shellslash forces shellescape to use double quotes
" instead.
let resetshellslash = 0
if has('win32') && &shellslash
let resetshellslash = 1
set noshellslash
endif
let cmd = "go get -v "
if get(g:, "go_get_update", 1) != 0
let cmd .= "-u "
endif
let s:go_version = matchstr(go#util#System("go version"), '\d.\d.\d')
" https://github.com/golang/go/issues/10791
if s:go_version > "1.4.0" && s:go_version < "1.5.0"
let cmd .= "-f "
endif
for pkg in s:packages
let basename = fnamemodify(pkg, ":t")
let binname = "go_" . basename . "_bin"
let bin = basename
if exists("g:{binname}")
let bin = g:{binname}
endif
if !executable(bin) || a:updateBinaries == 1
if a:updateBinaries == 1
echo "vim-go: Updating ". basename .". Reinstalling ". pkg . " to folder " . go_bin_path
else
echo "vim-go: ". basename ." not found. Installing ". pkg . " to folder " . go_bin_path
endif
let out = go#util#System(cmd . shellescape(pkg))
if go#util#ShellError() != 0
echo "Error installing ". pkg . ": " . out
endif
endif
endfor
" restore back!
let $PATH = old_path
if resetshellslash
set shellslash
endif
endfunction
" CheckBinaries checks if the necessary binaries to install the Go tool
" commands are available.
function! s:CheckBinaries()
if !executable('go')
echohl Error | echomsg "vim-go: go executable not found." | echohl None
return -1
endif
if !executable('git')
echohl Error | echomsg "vim-go: git executable not found." | echohl None
return -1
endif
endfunction
" Autocommands
" ============================================================================
"
function! s:echo_go_info()
if !get(g:, "go_echo_go_info", 1)
return
endif
if !exists('v:completed_item') || empty(v:completed_item)
return
endif
let item = v:completed_item
if !has_key(item, "info")
return
endif
if empty(item.info)
return
endif
redraws! | echo "vim-go: " | echohl Function | echon item.info | echohl None
endfunction
function! s:auto_type_info()
" GoInfo automatic update
if get(g:, "go_auto_type_info", 0)
call go#tool#Info(1)
endif
endfunction
function! s:auto_sameids()
" GoSameId automatic update
if get(g:, "go_auto_sameids", 0)
call go#guru#SameIds()
endif
endfunction
function! s:fmt_autosave()
" Go code formatting on save
if get(g:, "go_fmt_autosave", 1)
call go#fmt#Format(-1)
endif
endfunction
function! s:asmfmt_autosave()
" Go asm formatting on save
if get(g:, "go_asmfmt_autosave", 0)
call go#asmfmt#Format()
endif
endfunction
function! s:metalinter_autosave()
" run gometalinter on save
if get(g:, "go_metalinter_autosave", 0)
call go#lint#Gometa(1)
endif
endfunction
function! s:template_autocreate()
" create new template from scratch
if get(g:, "go_template_autocreate", 1)
call go#template#create()
endif
endfunction
augroup vim-go
autocmd!
autocmd CursorHold *.go call s:auto_type_info()
autocmd CursorHold *.go call s:auto_sameids()
" Echo the identifier information when completion is done. Useful to see
" the signature of a function, etc...
if exists('##CompleteDone')
autocmd CompleteDone *.go call s:echo_go_info()
endif
autocmd BufWritePre *.go call s:fmt_autosave()
autocmd BufWritePre *.s call s:asmfmt_autosave()
autocmd BufWritePost *.go call s:metalinter_autosave()
autocmd BufNewFile *.go call s:template_autocreate()
" clear SameIds when the buffer is unloaded so that loading another buffer
" in the same window doesn't highlight the most recently matched
" identifier's positions.
autocmd BufWinEnter *.go call go#guru#ClearSameIds()
augroup END
" vim: sw=2 ts=2 et