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vim  .vimrc

~/.vimrc vim 乱码问题 set fileencodings=utf-8,gbk,ucs-bom,cp936 set encoding=utf-8


" 打开语法高亮
syntax on

set smarttab " 按tab时,用tabstop个空格代替
set tabstop=4 " tab = 4 空格
set expandtab " 使用空格代替tab

set hlsearch " 搜索时高亮
"set ignorecase " 搜索时忽略大小写
set smartcase " 如果搜索含大写字母,则自动变为大小写敏感

set scrolloff=10 " 光标上下有多少行保留

set mouse=a " 可以使用鼠标
set number " 有行数提示
set cursorline " 光标所在行提示

" 光标形态变化;insert时为一根竖线
let &t_SI = "\<Esc>]50;CursorShape=1\x7"
let &t_SR = "\<Esc>]50;CursorShape=2\x7"
let &t_EI = "\<Esc>]50;CursorShape=0\x7"

" vim-plug
call plug#begin('~/.vim/plugged') " 用begin和end包裹

" On-demand loading
Plug 'preservim/nerdtree'

call plug#end()


~/.vim/autoload/plug.vim

" vim-plug: Vim plugin manager
" ============================
"
" Download plug.vim and put it in ~/.vim/autoload
"
" curl -fLo ~/.vim/autoload/plug.vim --create-dirs \
" https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
"
" Edit your .vimrc
"
" call plug#begin('~/.vim/plugged')
"
" " Make sure you use single quotes
"
" " Shorthand notation; fetches https://github.com/junegunn/vim-easy-align
" Plug 'junegunn/vim-easy-align'
"
" " Any valid git URL is allowed
" Plug 'https://github.com/junegunn/vim-github-dashboard.git'
"
" " Multiple Plug commands can be written in a single line using | separators
" Plug 'SirVer/ultisnips' | Plug 'honza/vim-snippets'
"
" " On-demand loading
" Plug 'scrooloose/nerdtree', { 'on': 'NERDTreeToggle' }
" Plug 'tpope/vim-fireplace', { 'for': 'clojure' }
"
" " Using a non-default branch
" Plug 'rdnetto/YCM-Generator', { 'branch': 'stable' }
"
" " Using a tagged release; wildcard allowed (requires git 1.9.2 or above)
" Plug 'fatih/vim-go', { 'tag': '*' }
"
" " Plugin options
" Plug 'nsf/gocode', { 'tag': 'v.20150303', 'rtp': 'vim' }
"
" " Plugin outside ~/.vim/plugged with post-update hook
" Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
"
" " Unmanaged plugin (manually installed and updated)
" Plug '~/my-prototype-plugin'
"
" " Initialize plugin system
" call plug#end()
"
" Then reload .vimrc and :PlugInstall to install plugins.
"
" Plug options:
"
"| Option | Description |
"| ----------------------- | ------------------------------------------------ |
"| `branch`/`tag`/`commit` | Branch/tag/commit of the repository to use |
"| `rtp` | Subdirectory that contains Vim plugin |
"| `dir` | Custom directory for the plugin |
"| `as` | Use different name for the plugin |
"| `do` | Post-update hook (string or funcref) |
"| `on` | On-demand loading: Commands or `<Plug>`-mappings |
"| `for` | On-demand loading: File types |
"| `frozen` | Do not update unless explicitly specified |
"
" More information: https://github.com/junegunn/vim-plug
"
"
" Copyright (c) 2017 Junegunn Choi
"
" MIT License
"
" Permission is hereby granted, free of charge, to any person obtaining
" a copy of this software and associated documentation files (the
" "Software"), to deal in the Software without restriction, including
" without limitation the rights to use, copy, modify, merge, publish,
" distribute, sublicense, and/or sell copies of the Software, and to
" permit persons to whom the Software is furnished to do so, subject to
" the following conditions:
"
" The above copyright notice and this permission notice shall be
" included in all copies or substantial portions of the Software.
"
" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
" NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
" LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
" OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
" WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

if exists('g:loaded_plug')
finish
endif
let g:loaded_plug = 1

let s:cpo_save = &cpo
set cpo&vim

let s:plug_src = 'https://github.com/junegunn/vim-plug.git'
let s:plug_tab = get(s:, 'plug_tab', -1)
let s:plug_buf = get(s:, 'plug_buf', -1)
let s:mac_gui = has('gui_macvim') && has('gui_running')
let s:is_win = has('win32')
let s:nvim = has('nvim-0.2') || (has('nvim') && exists('*jobwait') && !s:is_win)
let s:vim8 = has('patch-8.0.0039') && exists('*job_start')
if s:is_win && &shellslash
set noshellslash
let s:me = resolve(expand('<sfile>:p'))
set shellslash
else
let s:me = resolve(expand('<sfile>:p'))
endif
let s:base_spec = { 'branch': '', 'frozen': 0 }
let s:TYPE = {
\ 'string': type(''),
\ 'list': type([]),
\ 'dict': type({}),
\ 'funcref': type(function('call'))
\ }
let s:loaded = get(s:, 'loaded', {})
let s:triggers = get(s:, 'triggers', {})

function! s:isabsolute(dir) abort
return a:dir =~# '^/' || (has('win32') && a:dir =~? '^\%(\\\|[A-Z]:\)')
endfunction

function! s:git_dir(dir) abort
let gitdir = s:trim(a:dir) . '/.git'
if isdirectory(gitdir)
return gitdir
endif
if !filereadable(gitdir)
return ''
endif
let gitdir = matchstr(get(readfile(gitdir), 0, ''), '^gitdir: \zs.*')
if len(gitdir) && !s:isabsolute(gitdir)
let gitdir = a:dir . '/' . gitdir
endif
return isdirectory(gitdir) ? gitdir : ''
endfunction

function! s:git_origin_url(dir) abort
let gitdir = s:git_dir(a:dir)
let config = gitdir . '/config'
if empty(gitdir) || !filereadable(config)
return ''
endif
return matchstr(join(readfile(config)), '\[remote "origin"\].\{-}url\s*=\s*\zs\S*\ze')
endfunction

function! s:git_revision(dir) abort
let gitdir = s:git_dir(a:dir)
let head = gitdir . '/HEAD'
if empty(gitdir) || !filereadable(head)
return ''
endif

let line = get(readfile(head), 0, '')
let ref = matchstr(line, '^ref: \zs.*')
if empty(ref)
return line
endif

if filereadable(gitdir . '/' . ref)
return get(readfile(gitdir . '/' . ref), 0, '')
endif

if filereadable(gitdir . '/packed-refs')
for line in readfile(gitdir . '/packed-refs')
if line =~# ' ' . ref
return matchstr(line, '^[0-9a-f]*')
endif
endfor
endif

return ''
endfunction

function! s:git_local_branch(dir) abort
let gitdir = s:git_dir(a:dir)
let head = gitdir . '/HEAD'
if empty(gitdir) || !filereadable(head)
return ''
endif
let branch = matchstr(get(readfile(head), 0, ''), '^ref: refs/heads/\zs.*')
return len(branch) ? branch : 'HEAD'
endfunction

function! s:git_origin_branch(spec)
if len(a:spec.branch)
return a:spec.branch
endif

" The file may not be present if this is a local repository
let gitdir = s:git_dir(a:spec.dir)
let origin_head = gitdir.'/refs/remotes/origin/HEAD'
if len(gitdir) && filereadable(origin_head)
return matchstr(get(readfile(origin_head), 0, ''),
\ '^ref: refs/remotes/origin/\zs.*')
endif

" The command may not return the name of a branch in detached HEAD state
let result = s:lines(s:system('git symbolic-ref --short HEAD', a:spec.dir))
return v:shell_error ? '' : result[-1]
endfunction

if s:is_win
function! s:plug_call(fn, ...)
let shellslash = &shellslash
try
set noshellslash
return call(a:fn, a:000)
finally
let &shellslash = shellslash
endtry
endfunction
else
function! s:plug_call(fn, ...)
return call(a:fn, a:000)
endfunction
endif

function! s:plug_getcwd()
return s:plug_call('getcwd')
endfunction

function! s:plug_fnamemodify(fname, mods)
return s:plug_call('fnamemodify', a:fname, a:mods)
endfunction

function! s:plug_expand(fmt)
return s:plug_call('expand', a:fmt, 1)
endfunction

function! s:plug_tempname()
return s:plug_call('tempname')
endfunction

function! plug#begin(...)
if a:0 > 0
let s:plug_home_org = a:1
let home = s:path(s:plug_fnamemodify(s:plug_expand(a:1), ':p'))
elseif exists('g:plug_home')
let home = s:path(g:plug_home)
elseif !empty(&rtp)
let home = s:path(split(&rtp, ',')[0]) . '/plugged'
else
return s:err('Unable to determine plug home. Try calling plug#begin() with a path argument.')
endif
if s:plug_fnamemodify(home, ':t') ==# 'plugin' && s:plug_fnamemodify(home, ':h') ==# s:first_rtp
return s:err('Invalid plug home. '.home.' is a standard Vim runtime path and is not allowed.')
endif

let g:plug_home = home
let g:plugs = {}
let g:plugs_order = []
let s:triggers = {}

call s:define_commands()
return 1
endfunction

function! s:define_commands()
command! -nargs=+ -bar Plug call plug#(<args>)
if !executable('git')
return s:err('`git` executable not found. Most commands will not be available. To suppress this message, prepend `silent!` to `call plug#begin(...)`.')
endif
if has('win32')
\ && &shellslash
\ && (&shell =~# 'cmd\(\.exe\)\?$' || &shell =~# 'powershell\(\.exe\)\?$')
return s:err('vim-plug does not support shell, ' . &shell . ', when shellslash is set.')
endif
if !has('nvim')
\ && (has('win32') || has('win32unix'))
\ && !has('multi_byte')
return s:err('Vim needs +multi_byte feature on Windows to run shell commands. Enable +iconv for best results.')
endif
command! -nargs=* -bar -bang -complete=customlist,s:names PlugInstall call s:install(<bang>0, [<f-args>])
command! -nargs=* -bar -bang -complete=customlist,s:names PlugUpdate call s:update(<bang>0, [<f-args>])
command! -nargs=0 -bar -bang PlugClean call s:clean(<bang>0)
command! -nargs=0 -bar PlugUpgrade if s:upgrade() | execute 'source' s:esc(s:me) | endif
command! -nargs=0 -bar PlugStatus call s:status()
command! -nargs=0 -bar PlugDiff call s:diff()
command! -nargs=? -bar -bang -complete=file PlugSnapshot call s:snapshot(<bang>0, <f-args>)
endfunction

function! s:to_a(v)
return type(a:v) == s:TYPE.list ? a:v : [a:v]
endfunction

function! s:to_s(v)
return type(a:v) == s:TYPE.string ? a:v : join(a:v, "\n") . "\n"
endfunction

function! s:glob(from, pattern)
return s:lines(globpath(a:from, a:pattern))
endfunction

function! s:source(from, ...)
let found = 0
for pattern in a:000
for vim in s:glob(a:from, pattern)
execute 'source' s:esc(vim)
let found = 1
endfor
endfor
return found
endfunction

function! s:assoc(dict, key, val)
let a:dict[a:key] = add(get(a:dict, a:key, []), a:val)
endfunction

function! s:ask(message, ...)
call inputsave()
echohl WarningMsg
let answer = input(a:message.(a:0 ? ' (y/N/a) ' : ' (y/N) '))
echohl None
call inputrestore()
echo "\r"
return (a:0 && answer =~? '^a') ? 2 : (answer =~? '^y') ? 1 : 0
endfunction

function! s:ask_no_interrupt(...)
try
return call('s:ask', a:000)
catch
return 0
endtry
endfunction

function! s:lazy(plug, opt)
return has_key(a:plug, a:opt) &&
\ (empty(s:to_a(a:plug[a:opt])) ||
\ !isdirectory(a:plug.dir) ||
\ len(s:glob(s:rtp(a:plug), 'plugin')) ||
\ len(s:glob(s:rtp(a:plug), 'after/plugin')))
endfunction

function! plug#end()
if !exists('g:plugs')
return s:err('plug#end() called without calling plug#begin() first')
endif

if exists('#PlugLOD')
augroup PlugLOD
autocmd!
augroup END
augroup! PlugLOD
endif
let lod = { 'ft': {}, 'map': {}, 'cmd': {} }

if exists('g:did_load_filetypes')
filetype off
endif
for name in g:plugs_order
if !has_key(g:plugs, name)
continue
endif
let plug = g:plugs[name]
if get(s:loaded, name, 0) || !s:lazy(plug, 'on') && !s:lazy(plug, 'for')
let s:loaded[name] = 1
continue
endif

if has_key(plug, 'on')
let s:triggers[name] = { 'map': [], 'cmd': [] }
for cmd in s:to_a(plug.on)
if cmd =~? '^<Plug>.\+'
if empty(mapcheck(cmd)) && empty(mapcheck(cmd, 'i'))
call s:assoc(lod.map, cmd, name)
endif
call add(s:triggers[name].map, cmd)
elseif cmd =~# '^[A-Z]'
let cmd = substitute(cmd, '!*$', '', '')
if exists(':'.cmd) != 2
call s:assoc(lod.cmd, cmd, name)
endif
call add(s:triggers[name].cmd, cmd)
else
call s:err('Invalid `on` option: '.cmd.
\ '. Should start with an uppercase letter or `<Plug>`.')
endif
endfor
endif

if has_key(plug, 'for')
let types = s:to_a(plug.for)
if !empty(types)
augroup filetypedetect
call s:source(s:rtp(plug), 'ftdetect/**/*.vim', 'after/ftdetect/**/*.vim')
augroup END
endif
for type in types
call s:assoc(lod.ft, type, name)
endfor
endif
endfor

for [cmd, names] in items(lod.cmd)
execute printf(
\ 'command! -nargs=* -range -bang -complete=file %s call s:lod_cmd(%s, "<bang>", <line1>, <line2>, <q-args>, %s)',
\ cmd, string(cmd), string(names))
endfor

for [map, names] in items(lod.map)
for [mode, map_prefix, key_prefix] in
\ [['i', '<C-O>', ''], ['n', '', ''], ['v', '', 'gv'], ['o', '', '']]
execute printf(
\ '%snoremap <silent> %s %s:<C-U>call <SID>lod_map(%s, %s, %s, "%s")<CR>',
\ mode, map, map_prefix, string(map), string(names), mode != 'i', key_prefix)
endfor
endfor

for [ft, names] in items(lod.ft)
augroup PlugLOD
execute printf('autocmd FileType %s call <SID>lod_ft(%s, %s)',
\ ft, string(ft), string(names))
augroup END
endfor

call s:reorg_rtp()
filetype plugin indent on
if has('vim_starting')
if has('syntax') && !exists('g:syntax_on')
syntax enable
end
else
call s:reload_plugins()
endif
endfunction

function! s:loaded_names()
return filter(copy(g:plugs_order), 'get(s:loaded, v:val, 0)')
endfunction

function! s:load_plugin(spec)
call s:source(s:rtp(a:spec), 'plugin/**/*.vim', 'after/plugin/**/*.vim')
endfunction

function! s:reload_plugins()
for name in s:loaded_names()
call s:load_plugin(g:plugs[name])
endfor
endfunction

function! s:trim(str)
return substitute(a:str, '[\/]\+$', '', '')
endfunction

function! s:version_requirement(val, min)
for idx in range(0, len(a:min) - 1)
let v = get(a:val, idx, 0)
if v < a:min[idx] | return 0
elseif v > a:min[idx] | return 1
endif
endfor
return 1
endfunction

function! s:git_version_requirement(...)
if !exists('s:git_version')
let s:git_version = map(split(split(s:system(['git', '--version']))[2], '\.'), 'str2nr(v:val)')
endif
return s:version_requirement(s:git_version, a:000)
endfunction

function! s:progress_opt(base)
return a:base && !s:is_win &&
\ s:git_version_requirement(1, 7, 1) ? '--progress' : ''
endfunction

function! s:rtp(spec)
return s:path(a:spec.dir . get(a:spec, 'rtp', ''))
endfunction

if s:is_win
function! s:path(path)
return s:trim(substitute(a:path, '/', '\', 'g'))
endfunction

function! s:dirpath(path)
return s:path(a:path) . '\'
endfunction

function! s:is_local_plug(repo)
return a:repo =~? '^[a-z]:\|^[%~]'
endfunction

" Copied from fzf
function! s:wrap_cmds(cmds)
let cmds = [
\ '@echo off',
\ 'setlocal enabledelayedexpansion']
\ + (type(a:cmds) == type([]) ? a:cmds : [a:cmds])
\ + ['endlocal']
if has('iconv')
if !exists('s:codepage')
let s:codepage = libcallnr('kernel32.dll', 'GetACP', 0)
endif
return map(cmds, printf('iconv(v:val."\r", "%s", "cp%d")', &encoding, s:codepage))
endif
return map(cmds, 'v:val."\r"')
endfunction

function! s:batchfile(cmd)
let batchfile = s:plug_tempname().'.bat'
call writefile(s:wrap_cmds(a:cmd), batchfile)
let cmd = plug#shellescape(batchfile, {'shell': &shell, 'script': 0})
if &shell =~# 'powershell\(\.exe\)\?$'
let cmd = '& ' . cmd
endif
return [batchfile, cmd]
endfunction
else
function! s:path(path)
return s:trim(a:path)
endfunction

function! s:dirpath(path)
return substitute(a:path, '[/\\]*$', '/', '')
endfunction

function! s:is_local_plug(repo)
return a:repo[0] =~ '[/$~]'
endfunction
endif

function! s:err(msg)
echohl ErrorMsg
echom '[vim-plug] '.a:msg
echohl None
endfunction

function! s:warn(cmd, msg)
echohl WarningMsg
execute a:cmd 'a:msg'
echohl None
endfunction

function! s:esc(path)
return escape(a:path, ' ')
endfunction

function! s:escrtp(path)
return escape(a:path, ' ,')
endfunction

function! s:remove_rtp()
for name in s:loaded_names()
let rtp = s:rtp(g:plugs[name])
execute 'set rtp-='.s:escrtp(rtp)
let after = globpath(rtp, 'after')
if isdirectory(after)
execute 'set rtp-='.s:escrtp(after)
endif
endfor
endfunction

function! s:reorg_rtp()
if !empty(s:first_rtp)
execute 'set rtp-='.s:first_rtp
execute 'set rtp-='.s:last_rtp
endif

" &rtp is modified from outside
if exists('s:prtp') && s:prtp !=# &rtp
call s:remove_rtp()
unlet! s:middle
endif

let s:middle = get(s:, 'middle', &rtp)
let rtps = map(s:loaded_names(), 's:rtp(g:plugs[v:val])')
let afters = filter(map(copy(rtps), 'globpath(v:val, "after")'), '!empty(v:val)')
let rtp = join(map(rtps, 'escape(v:val, ",")'), ',')
\ . ','.s:middle.','
\ . join(map(afters, 'escape(v:val, ",")'), ',')
let &rtp = substitute(substitute(rtp, ',,*', ',', 'g'), '^,\|,$', '', 'g')
let s:prtp = &rtp

if !empty(s:first_rtp)
execute 'set rtp^='.s:first_rtp
execute 'set rtp+='.s:last_rtp
endif
endfunction

function! s:doautocmd(...)
if exists('#'.join(a:000, '#'))
execute 'doautocmd' ((v:version > 703 || has('patch442')) ? '<nomodeline>' : '') join(a:000)
endif
endfunction

function! s:dobufread(names)
for name in a:names
let path = s:rtp(g:plugs[name])
for dir in ['ftdetect', 'ftplugin', 'after/ftdetect', 'after/ftplugin']
if len(finddir(dir, path))
if exists('#BufRead')
doautocmd BufRead
endif
return
endif
endfor
endfor
endfunction

function! plug#load(...)
if a:0 == 0
return s:err('Argument missing: plugin name(s) required')
endif
if !exists('g:plugs')
return s:err('plug#begin was not called')
endif
let names = a:0 == 1 && type(a:1) == s:TYPE.list ? a:1 : a:000
let unknowns = filter(copy(names), '!has_key(g:plugs, v:val)')
if !empty(unknowns)
let s = len(unknowns) > 1 ? 's' : ''
return s:err(printf('Unknown plugin%s: %s', s, join(unknowns, ', ')))
end
let unloaded = filter(copy(names), '!get(s:loaded, v:val, 0)')
if !empty(unloaded)
for name in unloaded
call s:lod([name], ['ftdetect', 'after/ftdetect', 'plugin', 'after/plugin'])
endfor
call s:dobufread(unloaded)
return 1
end
return 0
endfunction

function! s:remove_triggers(name)
if !has_key(s:triggers, a:name)
return
endif
for cmd in s:triggers[a:name].cmd
execute 'silent! delc' cmd
endfor
for map in s:triggers[a:name].map
execute 'silent! unmap' map
execute 'silent! iunmap' map
endfor
call remove(s:triggers, a:name)
endfunction

function! s:lod(names, types, ...)
for name in a:names
call s:remove_triggers(name)
let s:loaded[name] = 1
endfor
call s:reorg_rtp()

for name in a:names
let rtp = s:rtp(g:plugs[name])
for dir in a:types
call s:source(rtp, dir.'/**/*.vim')
endfor
if a:0
if !s:source(rtp, a:1) && !empty(s:glob(rtp, a:2))
execute 'runtime' a:1
endif
call s:source(rtp, a:2)
endif
call s:doautocmd('User', name)
endfor
endfunction

function! s:lod_ft(pat, names)
let syn = 'syntax/'.a:pat.'.vim'
call s:lod(a:names, ['plugin', 'after/plugin'], syn, 'after/'.syn)
execute 'autocmd! PlugLOD FileType' a:pat
call s:doautocmd('filetypeplugin', 'FileType')
call s:doautocmd('filetypeindent', 'FileType')
endfunction

function! s:lod_cmd(cmd, bang, l1, l2, args, names)
call s:lod(a:names, ['ftdetect', 'after/ftdetect', 'plugin', 'after/plugin'])
call s:dobufread(a:names)
execute printf('%s%s%s %s', (a:l1 == a:l2 ? '' : (a:l1.','.a:l2)), a:cmd, a:bang, a:args)
endfunction

function! s:lod_map(map, names, with_prefix, prefix)
call s:lod(a:names, ['ftdetect', 'after/ftdetect', 'plugin', 'after/plugin'])
call s:dobufread(a:names)
let extra = ''
while 1
let c = getchar(0)
if c == 0
break
endif
let extra .= nr2char(c)
endwhile

if a:with_prefix
let prefix = v:count ? v:count : ''
let prefix .= '"'.v:register.a:prefix
if mode(1) == 'no'
if v:operator == 'c'
let prefix = "\<esc>" . prefix
endif
let prefix .= v:operator
endif
call feedkeys(prefix, 'n')
endif
call feedkeys(substitute(a:map, '^<Plug>', "\<Plug>", '') . extra)
endfunction

function! plug#(repo, ...)
if a:0 > 1
return s:err('Invalid number of arguments (1..2)')
endif

try
let repo = s:trim(a:repo)
let opts = a:0 == 1 ? s:parse_options(a:1) : s:base_spec
let name = get(opts, 'as', s:plug_fnamemodify(repo, ':t:s?\.git$??'))
let spec = extend(s:infer_properties(name, repo), opts)
if !has_key(g:plugs, name)
call add(g:plugs_order, name)
endif
let g:plugs[name] = spec
let s:loaded[name] = get(s:loaded, name, 0)
catch
return s:err(repo . ' ' . v:exception)
endtry
endfunction

function! s:parse_options(arg)
let opts = copy(s:base_spec)
let type = type(a:arg)
let opt_errfmt = 'Invalid argument for "%s" option of :Plug (expected: %s)'
if type == s:TYPE.string
if empty(a:arg)
throw printf(opt_errfmt, 'tag', 'string')
endif
let opts.tag = a:arg
elseif type == s:TYPE.dict
for opt in ['branch', 'tag', 'commit', 'rtp', 'dir', 'as']
if has_key(a:arg, opt)
\ && (type(a:arg[opt]) != s:TYPE.string || empty(a:arg[opt]))
throw printf(opt_errfmt, opt, 'string')
endif
endfor
for opt in ['on', 'for']
if has_key(a:arg, opt)
\ && type(a:arg[opt]) != s:TYPE.list
\ && (type(a:arg[opt]) != s:TYPE.string || empty(a:arg[opt]))
throw printf(opt_errfmt, opt, 'string or list')
endif
endfor
if has_key(a:arg, 'do')
\ && type(a:arg.do) != s:TYPE.funcref
\ && (type(a:arg.do) != s:TYPE.string || empty(a:arg.do))
throw printf(opt_errfmt, 'do', 'string or funcref')
endif
call extend(opts, a:arg)
if has_key(opts, 'dir')
let opts.dir = s:dirpath(s:plug_expand(opts.dir))
endif
else
throw 'Invalid argument type (expected: string or dictionary)'
endif
return opts
endfunction

function! s:infer_properties(name, repo)
let repo = a:repo
if s:is_local_plug(repo)
return { 'dir': s:dirpath(s:plug_expand(repo)) }
else
if repo =~ ':'
let uri = repo
else
if repo !~ '/'
throw printf('Invalid argument: %s (implicit `vim-scripts'' expansion is deprecated)', repo)
endif
let fmt = get(g:, 'plug_url_format', 'https://git::@github.com/%s.git')
let uri = printf(fmt, repo)
endif
return { 'dir': s:dirpath(g:plug_home.'/'.a:name), 'uri': uri }
endif
endfunction

function! s:install(force, names)
call s:update_impl(0, a:force, a:names)
endfunction

function! s:update(force, names)
call s:update_impl(1, a:force, a:names)
endfunction

function! plug#helptags()
if !exists('g:plugs')
return s:err('plug#begin was not called')
endif
for spec in values(g:plugs)
let docd = join([s:rtp(spec), 'doc'], '/')
if isdirectory(docd)
silent! execute 'helptags' s:esc(docd)
endif
endfor
return 1
endfunction

function! s:syntax()
syntax clear
syntax region plug1 start=/\%1l/ end=/\%2l/ contains=plugNumber
syntax region plug2 start=/\%2l/ end=/\%3l/ contains=plugBracket,plugX
syn match plugNumber /[0-9]\+[0-9.]*/ contained
syn match plugBracket /[[\]]/ contained
syn match plugX /x/ contained
syn match plugDash /^-\{1}\ /
syn match plugPlus /^+/
syn match plugStar /^*/
syn match plugMessage /\(^- \)\@<=.*/
syn match plugName /\(^- \)\@<=[^ ]*:/
syn match plugSha /\%(: \)\@<=[0-9a-f]\{4,}$/
syn match plugTag /(tag: [^)]\+)/
syn match plugInstall /\(^+ \)\@<=[^:]*/
syn match plugUpdate /\(^* \)\@<=[^:]*/
syn match plugCommit /^ \X*[0-9a-f]\{7,9} .*/ contains=plugRelDate,plugEdge,plugTag
syn match plugEdge /^ \X\+$/
syn match plugEdge /^ \X*/ contained nextgroup=plugSha
syn match plugSha /[0-9a-f]\{7,9}/ contained
syn match plugRelDate /([^)]*)$/ contained
syn match plugNotLoaded /(not loaded)$/
syn match plugError /^x.*/
syn region plugDeleted start=/^\~ .*/ end=/^\ze\S/
syn match plugH2 /^.*:\n-\+$/
syn match plugH2 /^-\{2,}/
syn keyword Function PlugInstall PlugStatus PlugUpdate PlugClean
hi def link plug1 Title
hi def link plug2 Repeat
hi def link plugH2 Type
hi def link plugX Exception
hi def link plugBracket Structure
hi def link plugNumber Number

hi def link plugDash Special
hi def link plugPlus Constant
hi def link plugStar Boolean

hi def link plugMessage Function
hi def link plugName Label
hi def link plugInstall Function
hi def link plugUpdate Type

hi def link plugError Error
hi def link plugDeleted Ignore
hi def link plugRelDate Comment
hi def link plugEdge PreProc
hi def link plugSha Identifier
hi def link plugTag Constant

hi def link plugNotLoaded Comment
endfunction

function! s:lpad(str, len)
return a:str . repeat(' ', a:len - len(a:str))
endfunction

function! s:lines(msg)
return split(a:msg, "[\r\n]")
endfunction

function! s:lastline(msg)
return get(s:lines(a:msg), -1, '')
endfunction

function! s:new_window()
execute get(g:, 'plug_window', 'vertical topleft new')
endfunction

function! s:plug_window_exists()
let buflist = tabpagebuflist(s:plug_tab)
return !empty(buflist) && index(buflist, s:plug_buf) >= 0
endfunction

function! s:switch_in()
if !s:plug_window_exists()
return 0
endif

if winbufnr(0) != s:plug_buf
let s:pos = [tabpagenr(), winnr(), winsaveview()]
execute 'normal!' s:plug_tab.'gt'
let winnr = bufwinnr(s:plug_buf)
execute winnr.'wincmd w'
call add(s:pos, winsaveview())
else
let s:pos = [winsaveview()]
endif

setlocal modifiable
return 1
endfunction

function! s:switch_out(...)
call winrestview(s:pos[-1])
setlocal nomodifiable
if a:0 > 0
execute a:1
endif

if len(s:pos) > 1
execute 'normal!' s:pos[0].'gt'
execute s:pos[1] 'wincmd w'
call winrestview(s:pos[2])
endif
endfunction

function! s:finish_bindings()
nnoremap <silent> <buffer> R :call <SID>retry()<cr>
nnoremap <silent> <buffer> D :PlugDiff<cr>
nnoremap <silent> <buffer> S :PlugStatus<cr>
nnoremap <silent> <buffer> U :call <SID>status_update()<cr>
xnoremap <silent> <buffer> U :call <SID>status_update()<cr>
nnoremap <silent> <buffer> ]] :silent! call <SID>section('')<cr>
nnoremap <silent> <buffer> [[ :silent! call <SID>section('b')<cr>
endfunction

function! s:prepare(...)
if empty(s:plug_getcwd())
throw 'Invalid current working directory. Cannot proceed.'
endif

for evar in ['$GIT_DIR', '$GIT_WORK_TREE']
if exists(evar)
throw evar.' detected. Cannot proceed.'
endif
endfor

call s:job_abort()
if s:switch_in()
if b:plug_preview == 1
pc
endif
enew
else
call s:new_window()
endif

nnoremap <silent> <buffer> q :if b:plug_preview==1<bar>pc<bar>endif<bar>bd<cr>
if a:0 == 0
call s:finish_bindings()
endif
let b:plug_preview = -1
let s:plug_tab = tabpagenr()
let s:plug_buf = winbufnr(0)
call s:assign_name()

for k in ['<cr>', 'L', 'o', 'X', 'd', 'dd']
execute 'silent! unmap <buffer>' k
endfor
setlocal buftype=nofile bufhidden=wipe nobuflisted nolist noswapfile nowrap cursorline modifiable nospell
if exists('+colorcolumn')
setlocal colorcolumn=
endif
setf vim-plug
if exists('g:syntax_on')
call s:syntax()
endif
endfunction

function! s:assign_name()
" Assign buffer name
let prefix = '[Plugins]'
let name = prefix
let idx = 2
while bufexists(name)
let name = printf('%s (%s)', prefix, idx)
let idx = idx + 1
endwhile
silent! execute 'f' fnameescape(name)
endfunction

function! s:chsh(swap)
let prev = [&shell, &shellcmdflag, &shellredir]
if !s:is_win
set shell=sh
endif
if a:swap
if &shell =~# 'powershell\(\.exe\)\?$' || &shell =~# 'pwsh$'
let &shellredir = '2>&1 | Out-File -Encoding UTF8 %s'
elseif &shell =~# 'sh' || &shell =~# 'cmd\(\.exe\)\?$'
set shellredir=>%s\ 2>&1
endif
endif
return prev
endfunction

function! s:bang(cmd, ...)
let batchfile = ''
try
let [sh, shellcmdflag, shrd] = s:chsh(a:0)
" FIXME: Escaping is incomplete. We could use shellescape with eval,
" but it won't work on Windows.
let cmd = a:0 ? s:with_cd(a:cmd, a:1) : a:cmd
if s:is_win
let [batchfile, cmd] = s:batchfile(cmd)
endif
let g:_plug_bang = (s:is_win && has('gui_running') ? 'silent ' : '').'!'.escape(cmd, '#!%')
execute "normal! :execute g:_plug_bang\<cr>\<cr>"
finally
unlet g:_plug_bang
let [&shell, &shellcmdflag, &shellredir] = [sh, shellcmdflag, shrd]
if s:is_win && filereadable(batchfile)
call delete(batchfile)
endif
endtry
return v:shell_error ? 'Exit status: ' . v:shell_error : ''
endfunction

function! s:regress_bar()
let bar = substitute(getline(2)[1:-2], '.*\zs=', 'x', '')
call s:progress_bar(2, bar, len(bar))
endfunction

function! s:is_updated(dir)
return !empty(s:system_chomp(['git', 'log', '--pretty=format:%h', 'HEAD...HEAD@{1}'], a:dir))
endfunction

function! s:do(pull, force, todo)
for [name, spec] in items(a:todo)
if !isdirectory(spec.dir)
continue
endif
let installed = has_key(s:update.new, name)
let updated = installed ? 0 :
\ (a:pull && index(s:update.errors, name) < 0 && s:is_updated(spec.dir))
if a:force || installed || updated
execute 'cd' s:esc(spec.dir)
call append(3, '- Post-update hook for '. name .' ... ')
let error = ''
let type = type(spec.do)
if type == s:TYPE.string
if spec.do[0] == ':'
if !get(s:loaded, name, 0)
let s:loaded[name] = 1
call s:reorg_rtp()
endif
call s:load_plugin(spec)
try
execute spec.do[1:]
catch
let error = v:exception
endtry
if !s:plug_window_exists()
cd -
throw 'Warning: vim-plug was terminated by the post-update hook of '.name
endif
else
let error = s:bang(spec.do)
endif
elseif type == s:TYPE.funcref
try
call s:load_plugin(spec)
let status = installed ? 'installed' : (updated ? 'updated' : 'unchanged')
call spec.do({ 'name': name, 'status': status, 'force': a:force })
catch
let error = v:exception
endtry
else
let error = 'Invalid hook type'
endif
call s:switch_in()
call setline(4, empty(error) ? (getline(4) . 'OK')
\ : ('x' . getline(4)[1:] . error))
if !empty(error)
call add(s:update.errors, name)
call s:regress_bar()
endif
cd -
endif
endfor
endfunction

function! s:hash_match(a, b)
return stridx(a:a, a:b) == 0 || stridx(a:b, a:a) == 0
endfunction

function! s:checkout(spec)
let sha = a:spec.commit
let output = s:git_revision(a:spec.dir)
if !empty(output) && !s:hash_match(sha, s:lines(output)[0])
let credential_helper = s:git_version_requirement(2) ? '-c credential.helper= ' : ''
let output = s:system(
\ 'git '.credential_helper.'fetch --depth 999999 && git checkout '.plug#shellescape(sha).' --', a:spec.dir)
endif
return output
endfunction

function! s:finish(pull)
let new_frozen = len(filter(keys(s:update.new), 'g:plugs[v:val].frozen'))
if new_frozen
let s = new_frozen > 1 ? 's' : ''
call append(3, printf('- Installed %d frozen plugin%s', new_frozen, s))
endif
call append(3, '- Finishing ... ') | 4
redraw
call plug#helptags()
call plug#end()
call setline(4, getline(4) . 'Done!')
redraw
let msgs = []
if !empty(s:update.errors)
call add(msgs, "Press 'R' to retry.")
endif
if a:pull && len(s:update.new) < len(filter(getline(5, '$'),
\ "v:val =~ '^- ' && v:val !~# 'Already up.to.date'"))
call add(msgs, "Press 'D' to see the updated changes.")
endif
echo join(msgs, ' ')
call s:finish_bindings()
endfunction

function! s:retry()
if empty(s:update.errors)
return
endif
echo
call s:update_impl(s:update.pull, s:update.force,
\ extend(copy(s:update.errors), [s:update.threads]))
endfunction

function! s:is_managed(name)
return has_key(g:plugs[a:name], 'uri')
endfunction

function! s:names(...)
return sort(filter(keys(g:plugs), 'stridx(v:val, a:1) == 0 && s:is_managed(v:val)'))
endfunction

function! s:check_ruby()
silent! ruby require 'thread'; VIM::command("let g:plug_ruby = '#{RUBY_VERSION}'")
if !exists('g:plug_ruby')
redraw!
return s:warn('echom', 'Warning: Ruby interface is broken')
endif
let ruby_version = split(g:plug_ruby, '\.')
unlet g:plug_ruby
return s:version_requirement(ruby_version, [1, 8, 7])
endfunction

function! s:update_impl(pull, force, args) abort
let sync = index(a:args, '--sync') >= 0 || has('vim_starting')
let args = filter(copy(a:args), 'v:val != "--sync"')
let threads = (len(args) > 0 && args[-1] =~ '^[1-9][0-9]*$') ?
\ remove(args, -1) : get(g:, 'plug_threads', 16)

let managed = filter(copy(g:plugs), 's:is_managed(v:key)')
let todo = empty(args) ? filter(managed, '!v:val.frozen || !isdirectory(v:val.dir)') :
\ filter(managed, 'index(args, v:key) >= 0')

if empty(todo)
return s:warn('echo', 'No plugin to '. (a:pull ? 'update' : 'install'))
endif

if !s:is_win && s:git_version_requirement(2, 3)
let s:git_terminal_prompt = exists('$GIT_TERMINAL_PROMPT') ? $GIT_TERMINAL_PROMPT : ''
let $GIT_TERMINAL_PROMPT = 0
for plug in values(todo)
let plug.uri = substitute(plug.uri,
\ '^https://git::@github\.com', 'https://github.com', '')
endfor
endif

if !isdirectory(g:plug_home)
try
call mkdir(g:plug_home, 'p')
catch
return s:err(printf('Invalid plug directory: %s. '.
\ 'Try to call plug#begin with a valid directory', g:plug_home))
endtry
endif

if has('nvim') && !exists('*jobwait') && threads > 1
call s:warn('echom', '[vim-plug] Update Neovim for parallel installer')
endif

let use_job = s:nvim || s:vim8
let python = (has('python') || has('python3')) && !use_job
let ruby = has('ruby') && !use_job && (v:version >= 703 || v:version == 702 && has('patch374')) && !(s:is_win && has('gui_running')) && threads > 1 && s:check_ruby()

let s:update = {
\ 'start': reltime(),
\ 'all': todo,
\ 'todo': copy(todo),
\ 'errors': [],
\ 'pull': a:pull,
\ 'force': a:force,
\ 'new': {},
\ 'threads': (python || ruby || use_job) ? min([len(todo), threads]) : 1,
\ 'bar': '',
\ 'fin': 0
\ }

call s:prepare(1)
call append(0, ['', ''])
normal! 2G
silent! redraw

let s:clone_opt = []
if get(g:, 'plug_shallow', 1)
call extend(s:clone_opt, ['--depth', '1'])
if s:git_version_requirement(1, 7, 10)
call add(s:clone_opt, '--no-single-branch')
endif
endif

if has('win32unix') || has('wsl')
call extend(s:clone_opt, ['-c', 'core.eol=lf', '-c', 'core.autocrlf=input'])
endif

let s:submodule_opt = s:git_version_requirement(2, 8) ? ' --jobs='.threads : ''

" Python version requirement (>= 2.7)
if python && !has('python3') && !ruby && !use_job && s:update.threads > 1
redir => pyv
silent python import platform; print platform.python_version()
redir END
let python = s:version_requirement(
\ map(split(split(pyv)[0], '\.'), 'str2nr(v:val)'), [2, 6])
endif

if (python || ruby) && s:update.threads > 1
try
let imd = &imd
if s:mac_gui
set noimd
endif
if ruby
call s:update_ruby()
else
call s:update_python()
endif
catch
let lines = getline(4, '$')
let printed = {}
silent! 4,$d _
for line in lines
let name = s:extract_name(line, '.', '')
if empty(name) || !has_key(printed, name)
call append('$', line)
if !empty(name)
let printed[name] = 1
if line[0] == 'x' && index(s:update.errors, name) < 0
call add(s:update.errors, name)
end
endif
endif
endfor
finally
let &imd = imd
call s:update_finish()
endtry
else
call s:update_vim()
while use_job && sync
sleep 100m
if s:update.fin
break
endif
endwhile
endif
endfunction

function! s:log4(name, msg)
call setline(4, printf('- %s (%s)', a:msg, a:name))
redraw
endfunction

function! s:update_finish()
if exists('s:git_terminal_prompt')
let $GIT_TERMINAL_PROMPT = s:git_terminal_prompt
endif
if s:switch_in()
call append(3, '- Updating ...') | 4
for [name, spec] in items(filter(copy(s:update.all), 'index(s:update.errors, v:key) < 0 && (s:update.force || s:update.pull || has_key(s:update.new, v:key))'))
let [pos, _] = s:logpos(name)
if !pos
continue
endif
if has_key(spec, 'commit')
call s:log4(name, 'Checking out '.spec.commit)
let out = s:checkout(spec)
elseif has_key(spec, 'tag')
let tag = spec.tag
if tag =~ '\*'
let tags = s:lines(s:system('git tag --list '.plug#shellescape(tag).' --sort -version:refname 2>&1', spec.dir))
if !v:shell_error && !empty(tags)
let tag = tags[0]
call s:log4(name, printf('Latest tag for %s -> %s', spec.tag, tag))
call append(3, '')
endif
endif
call s:log4(name, 'Checking out '.tag)
let out = s:system('git checkout -q '.plug#shellescape(tag).' -- 2>&1', spec.dir)
else
let branch = s:git_origin_branch(spec)
call s:log4(name, 'Merging origin/'.s:esc(branch))
let out = s:system('git checkout -q '.plug#shellescape(branch).' -- 2>&1'
\. (has_key(s:update.new, name) ? '' : ('&& git merge --ff-only '.plug#shellescape('origin/'.branch).' 2>&1')), spec.dir)
endif
if !v:shell_error && filereadable(spec.dir.'/.gitmodules') &&
\ (s:update.force || has_key(s:update.new, name) || s:is_updated(spec.dir))
call s:log4(name, 'Updating submodules. This may take a while.')
let out .= s:bang('git submodule update --init --recursive'.s:submodule_opt.' 2>&1', spec.dir)
endif
let msg = s:format_message(v:shell_error ? 'x': '-', name, out)
if v:shell_error
call add(s:update.errors, name)
call s:regress_bar()
silent execute pos 'd _'
call append(4, msg) | 4
elseif !empty(out)
call setline(pos, msg[0])
endif
redraw
endfor
silent 4 d _
try
call s:do(s:update.pull, s:update.force, filter(copy(s:update.all), 'index(s:update.errors, v:key) < 0 && has_key(v:val, "do")'))
catch
call s:warn('echom', v:exception)
call s:warn('echo', '')
return
endtry
call s:finish(s:update.pull)
call setline(1, 'Updated. Elapsed time: ' . split(reltimestr(reltime(s:update.start)))[0] . ' sec.')
call s:switch_out('normal! gg')
endif
endfunction

function! s:job_abort()
if (!s:nvim && !s:vim8) || !exists('s:jobs')
return
endif

for [name, j] in items(s:jobs)
if s:nvim
silent! call jobstop(j.jobid)
elseif s:vim8
silent! call job_stop(j.jobid)
endif
if j.new
call s:rm_rf(g:plugs[name].dir)
endif
endfor
let s:jobs = {}
endfunction

function! s:last_non_empty_line(lines)
let len = len(a:lines)
for idx in range(len)
let line = a:lines[len-idx-1]
if !empty(line)
return line
endif
endfor
return ''
endfunction

function! s:job_out_cb(self, data) abort
let self = a:self
let data = remove(self.lines, -1) . a:data
let lines = map(split(data, "\n", 1), 'split(v:val, "\r", 1)[-1]')
call extend(self.lines, lines)
" To reduce the number of buffer updates
let self.tick = get(self, 'tick', -1) + 1
if !self.running || self.tick % len(s:jobs) == 0
let bullet = self.running ? (self.new ? '+' : '*') : (self.error ? 'x' : '-')
let result = self.error ? join(self.lines, "\n") : s:last_non_empty_line(self.lines)
call s:log(bullet, self.name, result)
endif
endfunction

function! s:job_exit_cb(self, data) abort
let a:self.running = 0
let a:self.error = a:data != 0
call s:reap(a:self.name)
call s:tick()
endfunction

function! s:job_cb(fn, job, ch, data)
if !s:plug_window_exists() " plug window closed
return s:job_abort()
endif
call call(a:fn, [a:job, a:data])
endfunction

function! s:nvim_cb(job_id, data, event) dict abort
return (a:event == 'stdout' || a:event == 'stderr') ?
\ s:job_cb('s:job_out_cb', self, 0, join(a:data, "\n")) :
\ s:job_cb('s:job_exit_cb', self, 0, a:data)
endfunction

function! s:spawn(name, cmd, opts)
let job = { 'name': a:name, 'running': 1, 'error': 0, 'lines': [''],
\ 'new': get(a:opts, 'new', 0) }
let s:jobs[a:name] = job

if s:nvim
if has_key(a:opts, 'dir')
let job.cwd = a:opts.dir
endif
let argv = a:cmd
call extend(job, {
\ 'on_stdout': function('s:nvim_cb'),
\ 'on_stderr': function('s:nvim_cb'),
\ 'on_exit': function('s:nvim_cb'),
\ })
let jid = s:plug_call('jobstart', argv, job)
if jid > 0
let job.jobid = jid
else
let job.running = 0
let job.error = 1
let job.lines = [jid < 0 ? argv[0].' is not executable' :
\ 'Invalid arguments (or job table is full)']
endif
elseif s:vim8
let cmd = join(map(copy(a:cmd), 'plug#shellescape(v:val, {"script": 0})'))
if has_key(a:opts, 'dir')
let cmd = s:with_cd(cmd, a:opts.dir, 0)
endif
let argv = s:is_win ? ['cmd', '/s', '/c', '"'.cmd.'"'] : ['sh', '-c', cmd]
let jid = job_start(s:is_win ? join(argv, ' ') : argv, {
\ 'out_cb': function('s:job_cb', ['s:job_out_cb', job]),
\ 'err_cb': function('s:job_cb', ['s:job_out_cb', job]),
\ 'exit_cb': function('s:job_cb', ['s:job_exit_cb', job]),
\ 'err_mode': 'raw',
\ 'out_mode': 'raw'
\})
if job_status(jid) == 'run'
let job.jobid = jid
else
let job.running = 0
let job.error = 1
let job.lines = ['Failed to start job']
endif
else
let job.lines = s:lines(call('s:system', has_key(a:opts, 'dir') ? [a:cmd, a:opts.dir] : [a:cmd]))
let job.error = v:shell_error != 0
let job.running = 0
endif
endfunction

function! s:reap(name)
let job = s:jobs[a:name]
if job.error
call add(s:update.errors, a:name)
elseif get(job, 'new', 0)
let s:update.new[a:name] = 1
endif
let s:update.bar .= job.error ? 'x' : '='

let bullet = job.error ? 'x' : '-'
let result = job.error ? join(job.lines, "\n") : s:last_non_empty_line(job.lines)
call s:log(bullet, a:name, empty(result) ? 'OK' : result)
call s:bar()

call remove(s:jobs, a:name)
endfunction

function! s:bar()
if s:switch_in()
let total = len(s:update.all)
call setline(1, (s:update.pull ? 'Updating' : 'Installing').
\ ' plugins ('.len(s:update.bar).'/'.total.')')
call s:progress_bar(2, s:update.bar, total)
call s:switch_out()
endif
endfunction

function! s:logpos(name)
let max = line('$')
for i in range(4, max > 4 ? max : 4)
if getline(i) =~# '^[-+x*] '.a:name.':'
for j in range(i + 1, max > 5 ? max : 5)
if getline(j) !~ '^ '
return [i, j - 1]
endif
endfor
return [i, i]
endif
endfor
return [0, 0]
endfunction

function! s:log(bullet, name, lines)
if s:switch_in()
let [b, e] = s:logpos(a:name)
if b > 0
silent execute printf('%d,%d d _', b, e)
if b > winheight('.')
let b = 4
endif
else
let b = 4
endif
" FIXME For some reason, nomodifiable is set after :d in vim8
setlocal modifiable
call append(b - 1, s:format_message(a:bullet, a:name, a:lines))
call s:switch_out()
endif
endfunction

function! s:update_vim()
let s:jobs = {}

call s:bar()
call s:tick()
endfunction

function! s:tick()
let pull = s:update.pull
let prog = s:progress_opt(s:nvim || s:vim8)
while 1 " Without TCO, Vim stack is bound to explode
if empty(s:update.todo)
if empty(s:jobs) && !s:update.fin
call s:update_finish()
let s:update.fin = 1
endif
return
endif

let name = keys(s:update.todo)[0]
let spec = remove(s:update.todo, name)
let new = empty(globpath(spec.dir, '.git', 1))

call s:log(new ? '+' : '*', name, pull ? 'Updating ...' : 'Installing ...')
redraw

let has_tag = has_key(spec, 'tag')
if !new
let [error, _] = s:git_validate(spec, 0)
if empty(error)
if pull
let cmd = ['git', 'fetch']
if has_tag && !empty(globpath(spec.dir, '.git/shallow'))
call extend(cmd, ['--depth', '99999999'])
endif
if !empty(prog)
call add(cmd, prog)
endif
call s:spawn(name, cmd, { 'dir': spec.dir })
else
let s:jobs[name] = { 'running': 0, 'lines': ['Already installed'], 'error': 0 }
endif
else
let s:jobs[name] = { 'running': 0, 'lines': s:lines(error), 'error': 1 }
endif
else
let cmd = ['git', 'clone']
if !has_tag
call extend(cmd, s:clone_opt)
endif
if !empty(prog)
call add(cmd, prog)
endif
call s:spawn(name, extend(cmd, [spec.uri, s:trim(spec.dir)]), { 'new': 1 })
endif

if !s:jobs[name].running
call s:reap(name)
endif
if len(s:jobs) >= s:update.threads
break
endif
endwhile
endfunction

function! s:update_python()
let py_exe = has('python') ? 'python' : 'python3'
execute py_exe "<< EOF"
import datetime
import functools
import os
try:
import queue
except ImportError:
import Queue as queue
import random
import re
import shutil
import signal
import subprocess
import tempfile
import threading as thr
import time
import traceback
import vim

G_NVIM = vim.eval("has('nvim')") == '1'
G_PULL = vim.eval('s:update.pull') == '1'
G_RETRIES = int(vim.eval('get(g:, "plug_retries", 2)')) + 1
G_TIMEOUT = int(vim.eval('get(g:, "plug_timeout", 60)'))
G_CLONE_OPT = ' '.join(vim.eval('s:clone_opt'))
G_PROGRESS = vim.eval('s:progress_opt(1)')
G_LOG_PROB = 1.0 / int(vim.eval('s:update.threads'))
G_STOP = thr.Event()
G_IS_WIN = vim.eval('s:is_win') == '1'

class PlugError(Exception):
def __init__(self, msg):
self.msg = msg
class CmdTimedOut(PlugError):
pass
class CmdFailed(PlugError):
pass
class InvalidURI(PlugError):
pass
class Action(object):
INSTALL, UPDATE, ERROR, DONE = ['+', '*', 'x', '-']

class Buffer(object):
def __init__(self, lock, num_plugs, is_pull):
self.bar = ''
self.event = 'Updating' if is_pull else 'Installing'
self.lock = lock
self.maxy = int(vim.eval('winheight(".")'))
self.num_plugs = num_plugs

def __where(self, name):
""" Find first line with name in current buffer. Return line num. """
found, lnum = False, 0
matcher = re.compile('^[-+x*] {0}:'.format(name))
for line in vim.current.buffer:
if matcher.search(line) is not None:
found = True
break
lnum += 1

if not found:
lnum = -1
return lnum

def header(self):
curbuf = vim.current.buffer
curbuf[0] = self.event + ' plugins ({0}/{1})'.format(len(self.bar), self.num_plugs)

num_spaces = self.num_plugs - len(self.bar)
curbuf[1] = '[{0}{1}]'.format(self.bar, num_spaces * ' ')

with self.lock:
vim.command('normal! 2G')
vim.command('redraw')

def write(self, action, name, lines):
first, rest = lines[0], lines[1:]
msg = ['{0} {1}{2}{3}'.format(action, name, ': ' if first else '', first)]
msg.extend([' ' + line for line in rest])

try:
if action == Action.ERROR:
self.bar += 'x'
vim.command("call add(s:update.errors, '{0}')".format(name))
elif action == Action.DONE:
self.bar += '='

curbuf = vim.current.buffer
lnum = self.__where(name)
if lnum != -1: # Found matching line num
del curbuf[lnum]
if lnum > self.maxy and action in set([Action.INSTALL, Action.UPDATE]):
lnum = 3
else:
lnum = 3
curbuf.append(msg, lnum)

self.header()
except vim.error:
pass

class Command(object):
CD = 'cd /d' if G_IS_WIN else 'cd'

def __init__(self, cmd, cmd_dir=None, timeout=60, cb=None, clean=None):
self.cmd = cmd
if cmd_dir:
self.cmd = '{0} {1} && {2}'.format(Command.CD, cmd_dir, self.cmd)
self.timeout = timeout
self.callback = cb if cb else (lambda msg: None)
self.clean = clean if clean else (lambda: None)
self.proc = None

@property
def alive(self):
""" Returns true only if command still running. """
return self.proc and self.proc.poll() is None

def execute(self, ntries=3):
""" Execute the command with ntries if CmdTimedOut.
Returns the output of the command if no Exception.
"""
attempt, finished, limit = 0, False, self.timeout

while not finished:
try:
attempt += 1
result = self.try_command()
finished = True
return result
except CmdTimedOut:
if attempt != ntries:
self.notify_retry()
self.timeout += limit
else:
raise

def notify_retry(self):
""" Retry required for command, notify user. """
for count in range(3, 0, -1):
if G_STOP.is_set():
raise KeyboardInterrupt
msg = 'Timeout. Will retry in {0} second{1} ...'.format(
count, 's' if count != 1 else '')
self.callback([msg])
time.sleep(1)
self.callback(['Retrying ...'])

def try_command(self):
""" Execute a cmd & poll for callback. Returns list of output.
Raises CmdFailed -> return code for Popen isn't 0
Raises CmdTimedOut -> command exceeded timeout without new output
"""
first_line = True

try:
tfile = tempfile.NamedTemporaryFile(mode='w+b')
preexec_fn = not G_IS_WIN and os.setsid or None
self.proc = subprocess.Popen(self.cmd, stdout=tfile,
stderr=subprocess.STDOUT,
stdin=subprocess.PIPE, shell=True,
preexec_fn=preexec_fn)
thrd = thr.Thread(target=(lambda proc: proc.wait()), args=(self.proc,))
thrd.start()

thread_not_started = True
while thread_not_started:
try:
thrd.join(0.1)
thread_not_started = False
except RuntimeError:
pass

while self.alive:
if G_STOP.is_set():
raise KeyboardInterrupt

if first_line or random.random() < G_LOG_PROB:
first_line = False
line = '' if G_IS_WIN else nonblock_read(tfile.name)
if line:
self.callback([line])

time_diff = time.time() - os.path.getmtime(tfile.name)
if time_diff > self.timeout:
raise CmdTimedOut(['Timeout!'])

thrd.join(0.5)

tfile.seek(0)
result = [line.decode('utf-8', 'replace').rstrip() for line in tfile]

if self.proc.returncode != 0:
raise CmdFailed([''] + result)

return result
except:
self.terminate()
raise

def terminate(self):
""" Terminate process and cleanup. """
if self.alive:
if G_IS_WIN:
os.kill(self.proc.pid, signal.SIGINT)
else:
os.killpg(self.proc.pid, signal.SIGTERM)
self.clean()

class Plugin(object):
def __init__(self, name, args, buf_q, lock):
self.name = name
self.args = args
self.buf_q = buf_q
self.lock = lock
self.tag = args.get('tag', 0)

def manage(self):
try:
if os.path.exists(self.args['dir']):
self.update()
else:
self.install()
with self.lock:
thread_vim_command("let s:update.new['{0}'] = 1".format(self.name))
except PlugError as exc:
self.write(Action.ERROR, self.name, exc.msg)
except KeyboardInterrupt:
G_STOP.set()
self.write(Action.ERROR, self.name, ['Interrupted!'])
except:
# Any exception except those above print stack trace
msg = 'Trace:\n{0}'.format(traceback.format_exc().rstrip())
self.write(Action.ERROR, self.name, msg.split('\n'))
raise

def install(self):
target = self.args['dir']
if target[-1] == '\\':
target = target[0:-1]

def clean(target):
def _clean():
try:
shutil.rmtree(target)
except OSError:
pass
return _clean

self.write(Action.INSTALL, self.name, ['Installing ...'])
callback = functools.partial(self.write, Action.INSTALL, self.name)
cmd = 'git clone {0} {1} {2} {3} 2>&1'.format(
'' if self.tag else G_CLONE_OPT, G_PROGRESS, self.args['uri'],
esc(target))
com = Command(cmd, None, G_TIMEOUT, callback, clean(target))
result = com.execute(G_RETRIES)
self.write(Action.DONE, self.name, result[-1:])

def repo_uri(self):
cmd = 'git rev-parse --abbrev-ref HEAD 2>&1 && git config -f .git/config remote.origin.url'
command = Command(cmd, self.args['dir'], G_TIMEOUT,)
result = command.execute(G_RETRIES)
return result[-1]

def update(self):
actual_uri = self.repo_uri()
expect_uri = self.args['uri']
regex = re.compile(r'^(?:\w+://)?(?:[^@/]*@)?([^:/]*(?::[0-9]*)?)[:/](.*?)(?:\.git)?/?$')
ma = regex.match(actual_uri)
mb = regex.match(expect_uri)
if ma is None or mb is None or ma.groups() != mb.groups():
msg = ['',
'Invalid URI: {0}'.format(actual_uri),
'Expected {0}'.format(expect_uri),
'PlugClean required.']
raise InvalidURI(msg)

if G_PULL:
self.write(Action.UPDATE, self.name, ['Updating ...'])
callback = functools.partial(self.write, Action.UPDATE, self.name)
fetch_opt = '--depth 99999999' if self.tag and os.path.isfile(os.path.join(self.args['dir'], '.git/shallow')) else ''
cmd = 'git fetch {0} {1} 2>&1'.format(fetch_opt, G_PROGRESS)
com = Command(cmd, self.args['dir'], G_TIMEOUT, callback)
result = com.execute(G_RETRIES)
self.write(Action.DONE, self.name, result[-1:])
else:
self.write(Action.DONE, self.name, ['Already installed'])

def write(self, action, name, msg):
self.buf_q.put((action, name, msg))

class PlugThread(thr.Thread):
def __init__(self, tname, args):
super(PlugThread, self).__init__()
self.tname = tname
self.args = args

def run(self):
thr.current_thread().name = self.tname
buf_q, work_q, lock = self.args

try:
while not G_STOP.is_set():
name, args = work_q.get_nowait()
plug = Plugin(name, args, buf_q, lock)
plug.manage()
work_q.task_done()
except queue.Empty:
pass

class RefreshThread(thr.Thread):
def __init__(self, lock):
super(RefreshThread, self).__init__()
self.lock = lock
self.running = True

def run(self):
while self.running:
with self.lock:
thread_vim_command('noautocmd normal! a')
time.sleep(0.33)

def stop(self):
self.running = False

if G_NVIM:
def thread_vim_command(cmd):
vim.session.threadsafe_call(lambda: vim.command(cmd))
else:
def thread_vim_command(cmd):
vim.command(cmd)

def esc(name):
return '"' + name.replace('"', '\"') + '"'

def nonblock_read(fname):
""" Read a file with nonblock flag. Return the last line. """
fread = os.open(fname, os.O_RDONLY | os.O_NONBLOCK)
buf = os.read(fread, 100000).decode('utf-8', 'replace')
os.close(fread)

line = buf.rstrip('\r\n')
left = max(line.rfind('\r'), line.rfind('\n'))
if left != -1:
left += 1
line = line[left:]

return line

def main():
thr.current_thread().name = 'main'
nthreads = int(vim.eval('s:update.threads'))
plugs = vim.eval('s:update.todo')
mac_gui = vim.eval('s:mac_gui') == '1'

lock = thr.Lock()
buf = Buffer(lock, len(plugs), G_PULL)
buf_q, work_q = queue.Queue(), queue.Queue()
for work in plugs.items():
work_q.put(work)

start_cnt = thr.active_count()
for num in range(nthreads):
tname = 'PlugT-{0:02}'.format(num)
thread = PlugThread(tname, (buf_q, work_q, lock))
thread.start()
if mac_gui:
rthread = RefreshThread(lock)
rthread.start()

while not buf_q.empty() or thr.active_count() != start_cnt:
try:
action, name, msg = buf_q.get(True, 0.25)
buf.write(action, name, ['OK'] if not msg else msg)
buf_q.task_done()
except queue.Empty:
pass
except KeyboardInterrupt:
G_STOP.set()

if mac_gui:
rthread.stop()
rthread.join()

main()
EOF
endfunction

function! s:update_ruby()
ruby << EOF
module PlugStream
SEP = ["\r", "\n", nil]
def get_line
buffer = ''
loop do
char = readchar rescue return
if SEP.include? char.chr
buffer << $/
break
else
buffer << char
end
end
buffer
end
end unless defined?(PlugStream)

def esc arg
%["#{arg.gsub('"', '\"')}"]
end

def killall pid
pids = [pid]
if /mswin|mingw|bccwin/ =~ RUBY_PLATFORM
pids.each { |pid| Process.kill 'INT', pid.to_i rescue nil }
else
unless `which pgrep 2> /dev/null`.empty?
children = pids
until children.empty?
children = children.map { |pid|
`pgrep -P #{pid}`.lines.map { |l| l.chomp }
}.flatten
pids += children
end
end
pids.each { |pid| Process.kill 'TERM', pid.to_i rescue nil }
end
end

def compare_git_uri a, b
regex = %r{^(?:\w+://)?(?:[^@/]*@)?([^:/]*(?::[0-9]*)?)[:/](.*?)(?:\.git)?/?$}
regex.match(a).to_a.drop(1) == regex.match(b).to_a.drop(1)
end

require 'thread'
require 'fileutils'
require 'timeout'
running = true
iswin = VIM::evaluate('s:is_win').to_i == 1
pull = VIM::evaluate('s:update.pull').to_i == 1
base = VIM::evaluate('g:plug_home')
all = VIM::evaluate('s:update.todo')
limit = VIM::evaluate('get(g:, "plug_timeout", 60)')
tries = VIM::evaluate('get(g:, "plug_retries", 2)') + 1
nthr = VIM::evaluate('s:update.threads').to_i
maxy = VIM::evaluate('winheight(".")').to_i
vim7 = VIM::evaluate('v:version').to_i <= 703 && RUBY_PLATFORM =~ /darwin/
cd = iswin ? 'cd /d' : 'cd'
tot = VIM::evaluate('len(s:update.todo)') || 0
bar = ''
skip = 'Already installed'
mtx = Mutex.new
take1 = proc { mtx.synchronize { running && all.shift } }
logh = proc {
cnt = bar.length
$curbuf[1] = "#{pull ? 'Updating' : 'Installing'} plugins (#{cnt}/#{tot})"
$curbuf[2] = '[' + bar.ljust(tot) + ']'
VIM::command('normal! 2G')
VIM::command('redraw')
}
where = proc { |name| (1..($curbuf.length)).find { |l| $curbuf[l] =~ /^[-+x*] #{name}:/ } }
log = proc { |name, result, type|
mtx.synchronize do
ing = ![true, false].include?(type)
bar += type ? '=' : 'x' unless ing
b = case type
when :install then '+' when :update then '*'
when true, nil then '-' else
VIM::command("call add(s:update.errors, '#{name}')")
'x'
end
result =
if type || type.nil?
["#{b} #{name}: #{result.lines.to_a.last || 'OK'}"]
elsif result =~ /^Interrupted|^Timeout/
["#{b} #{name}: #{result}"]
else
["#{b} #{name}"] + result.lines.map { |l| " " << l }
end
if lnum = where.call(name)
$curbuf.delete lnum
lnum = 4 if ing && lnum > maxy
end
result.each_with_index do |line, offset|
$curbuf.append((lnum || 4) - 1 + offset, line.gsub(/\e\[./, '').chomp)
end
logh.call
end
}
bt = proc { |cmd, name, type, cleanup|
tried = timeout = 0
begin
tried += 1
timeout += limit
fd = nil
data = ''
if iswin
Timeout::timeout(timeout) do
tmp = VIM::evaluate('tempname()')
system("(#{cmd}) > #{tmp}")
data = File.read(tmp).chomp
File.unlink tmp rescue nil
end
else
fd = IO.popen(cmd).extend(PlugStream)
first_line = true
log_prob = 1.0 / nthr
while line = Timeout::timeout(timeout) { fd.get_line }
data << line
log.call name, line.chomp, type if name && (first_line || rand < log_prob)
first_line = false
end
fd.close
end
[$? == 0, data.chomp]
rescue Timeout::Error, Interrupt => e
if fd && !fd.closed?
killall fd.pid
fd.close
end
cleanup.call if cleanup
if e.is_a?(Timeout::Error) && tried < tries
3.downto(1) do |countdown|
s = countdown > 1 ? 's' : ''
log.call name, "Timeout. Will retry in #{countdown} second#{s} ...", type
sleep 1
end
log.call name, 'Retrying ...', type
retry
end
[false, e.is_a?(Interrupt) ? "Interrupted!" : "Timeout!"]
end
}
main = Thread.current
threads = []
watcher = Thread.new {
if vim7
while VIM::evaluate('getchar(1)')
sleep 0.1
end
else
require 'io/console' # >= Ruby 1.9
nil until IO.console.getch == 3.chr
end
mtx.synchronize do
running = false
threads.each { |t| t.raise Interrupt } unless vim7
end
threads.each { |t| t.join rescue nil }
main.kill
}
refresh = Thread.new {
while true
mtx.synchronize do
break unless running
VIM::command('noautocmd normal! a')
end
sleep 0.2
end
} if VIM::evaluate('s:mac_gui') == 1

clone_opt = VIM::evaluate('s:clone_opt').join(' ')
progress = VIM::evaluate('s:progress_opt(1)')
nthr.times do
mtx.synchronize do
threads << Thread.new {
while pair = take1.call
name = pair.first
dir, uri, tag = pair.last.values_at *%w[dir uri tag]
exists = File.directory? dir
ok, result =
if exists
chdir = "#{cd} #{iswin ? dir : esc(dir)}"
ret, data = bt.call "#{chdir} && git rev-parse --abbrev-ref HEAD 2>&1 && git config -f .git/config remote.origin.url", nil, nil, nil
current_uri = data.lines.to_a.last
if !ret
if data =~ /^Interrupted|^Timeout/
[false, data]
else
[false, [data.chomp, "PlugClean required."].join($/)]
end
elsif !compare_git_uri(current_uri, uri)
[false, ["Invalid URI: #{current_uri}",
"Expected: #{uri}",
"PlugClean required."].join($/)]
else
if pull
log.call name, 'Updating ...', :update
fetch_opt = (tag && File.exist?(File.join(dir, '.git/shallow'))) ? '--depth 99999999' : ''
bt.call "#{chdir} && git fetch #{fetch_opt} #{progress} 2>&1", name, :update, nil
else
[true, skip]
end
end
else
d = esc dir.sub(%r{[\\/]+$}, '')
log.call name, 'Installing ...', :install
bt.call "git clone #{clone_opt unless tag} #{progress} #{uri} #{d} 2>&1", name, :install, proc {
FileUtils.rm_rf dir
}
end
mtx.synchronize { VIM::command("let s:update.new['#{name}'] = 1") } if !exists && ok
log.call name, result, ok
end
} if running
end
end
threads.each { |t| t.join rescue nil }
logh.call
refresh.kill if refresh
watcher.kill
EOF
endfunction

function! s:shellesc_cmd(arg, script)
let escaped = substitute('"'.a:arg.'"', '[&|<>()@^!"]', '^&', 'g')
return substitute(escaped, '%', (a:script ? '%' : '^') . '&', 'g')
endfunction

function! s:shellesc_ps1(arg)
return "'".substitute(escape(a:arg, '\"'), "'", "''", 'g')."'"
endfunction

function! s:shellesc_sh(arg)
return "'".substitute(a:arg, "'", "'\\\\''", 'g')."'"
endfunction

" Escape the shell argument based on the shell.
" Vim and Neovim's shellescape() are insufficient.
" 1. shellslash determines whether to use single/double quotes.
" Double-quote escaping is fragile for cmd.exe.
" 2. It does not work for powershell.
" 3. It does not work for *sh shells if the command is executed
" via cmd.exe (ie. cmd.exe /c sh -c command command_args)
" 4. It does not support batchfile syntax.
"
" Accepts an optional dictionary with the following keys:
" - shell: same as Vim/Neovim 'shell' option.
" If unset, fallback to 'cmd.exe' on Windows or 'sh'.
" - script: If truthy and shell is cmd.exe, escape for batchfile syntax.
function! plug#shellescape(arg, ...)
if a:arg =~# '^[A-Za-z0-9_/:.-]\+$'
return a:arg
endif
let opts = a:0 > 0 && type(a:1) == s:TYPE.dict ? a:1 : {}
let shell = get(opts, 'shell', s:is_win ? 'cmd.exe' : 'sh')
let script = get(opts, 'script', 1)
if shell =~# 'cmd\(\.exe\)\?$'
return s:shellesc_cmd(a:arg, script)
elseif shell =~# 'powershell\(\.exe\)\?$' || shell =~# 'pwsh$'
return s:shellesc_ps1(a:arg)
endif
return s:shellesc_sh(a:arg)
endfunction

function! s:glob_dir(path)
return map(filter(s:glob(a:path, '**'), 'isdirectory(v:val)'), 's:dirpath(v:val)')
endfunction

function! s:progress_bar(line, bar, total)
call setline(a:line, '[' . s:lpad(a:bar, a:total) . ']')
endfunction

function! s:compare_git_uri(a, b)
" See `git help clone'
" https:// [user@] github.com[:port] / junegunn/vim-plug [.git]
" [git@] github.com[:port] : junegunn/vim-plug [.git]
" file:// / junegunn/vim-plug [/]
" / junegunn/vim-plug [/]
let pat = '^\%(\w\+://\)\='.'\%([^@/]*@\)\='.'\([^:/]*\%(:[0-9]*\)\=\)'.'[:/]'.'\(.\{-}\)'.'\%(\.git\)\=/\?$'
let ma = matchlist(a:a, pat)
let mb = matchlist(a:b, pat)
return ma[1:2] ==# mb[1:2]
endfunction

function! s:format_message(bullet, name, message)
if a:bullet != 'x'
return [printf('%s %s: %s', a:bullet, a:name, s:lastline(a:message))]
else
let lines = map(s:lines(a:message), '" ".v:val')
return extend([printf('x %s:', a:name)], lines)
endif
endfunction

function! s:with_cd(cmd, dir, ...)
let script = a:0 > 0 ? a:1 : 1
return printf('cd%s %s && %s', s:is_win ? ' /d' : '', plug#shellescape(a:dir, {'script': script}), a:cmd)
endfunction

function! s:system(cmd, ...)
let batchfile = ''
try
let [sh, shellcmdflag, shrd] = s:chsh(1)
if type(a:cmd) == s:TYPE.list
" Neovim's system() supports list argument to bypass the shell
" but it cannot set the working directory for the command.
" Assume that the command does not rely on the shell.
if has('nvim') && a:0 == 0
return system(a:cmd)
endif
let cmd = join(map(copy(a:cmd), 'plug#shellescape(v:val, {"shell": &shell, "script": 0})'))
if &shell =~# 'powershell\(\.exe\)\?$'
let cmd = '& ' . cmd
endif
else
let cmd = a:cmd
endif
if a:0 > 0
let cmd = s:with_cd(cmd, a:1, type(a:cmd) != s:TYPE.list)
endif
if s:is_win && type(a:cmd) != s:TYPE.list
let [batchfile, cmd] = s:batchfile(cmd)
endif
return system(cmd)
finally
let [&shell, &shellcmdflag, &shellredir] = [sh, shellcmdflag, shrd]
if s:is_win && filereadable(batchfile)
call delete(batchfile)
endif
endtry
endfunction

function! s:system_chomp(...)
let ret = call('s:system', a:000)
return v:shell_error ? '' : substitute(ret, '\n$', '', '')
endfunction

function! s:git_validate(spec, check_branch)
let err = ''
if isdirectory(a:spec.dir)
let result = [s:git_local_branch(a:spec.dir), s:git_origin_url(a:spec.dir)]
let remote = result[-1]
if empty(remote)
let err = join([remote, 'PlugClean required.'], "\n")
elseif !s:compare_git_uri(remote, a:spec.uri)
let err = join(['Invalid URI: '.remote,
\ 'Expected: '.a:spec.uri,
\ 'PlugClean required.'], "\n")
elseif a:check_branch && has_key(a:spec, 'commit')
let sha = s:git_revision(a:spec.dir)
if empty(sha)
let err = join(add(result, 'PlugClean required.'), "\n")
elseif !s:hash_match(sha, a:spec.commit)
let err = join([printf('Invalid HEAD (expected: %s, actual: %s)',
\ a:spec.commit[:6], sha[:6]),
\ 'PlugUpdate required.'], "\n")
endif
elseif a:check_branch
let current_branch = result[0]
" Check tag
let origin_branch = s:git_origin_branch(a:spec)
if has_key(a:spec, 'tag')
let tag = s:system_chomp('git describe --exact-match --tags HEAD 2>&1', a:spec.dir)
if a:spec.tag !=# tag && a:spec.tag !~ '\*'
let err = printf('Invalid tag: %s (expected: %s). Try PlugUpdate.',
\ (empty(tag) ? 'N/A' : tag), a:spec.tag)
endif
" Check branch
elseif origin_branch !=# current_branch
let err = printf('Invalid branch: %s (expected: %s). Try PlugUpdate.',
\ current_branch, origin_branch)
endif
if empty(err)
let [ahead, behind] = split(s:lastline(s:system([
\ 'git', 'rev-list', '--count', '--left-right',
\ printf('HEAD...origin/%s', origin_branch)
\ ], a:spec.dir)), '\t')
if !v:shell_error && ahead
if behind
" Only mention PlugClean if diverged, otherwise it's likely to be
" pushable (and probably not that messed up).
let err = printf(
\ "Diverged from origin/%s (%d commit(s) ahead and %d commit(s) behind!\n"
\ .'Backup local changes and run PlugClean and PlugUpdate to reinstall it.', origin_branch, ahead, behind)
else
let err = printf("Ahead of origin/%s by %d commit(s).\n"
\ .'Cannot update until local changes are pushed.',
\ origin_branch, ahead)
endif
endif
endif
endif
else
let err = 'Not found'
endif
return [err, err =~# 'PlugClean']
endfunction

function! s:rm_rf(dir)
if isdirectory(a:dir)
return s:system(s:is_win
\ ? 'rmdir /S /Q '.plug#shellescape(a:dir)
\ : ['rm', '-rf', a:dir])
endif
endfunction

function! s:clean(force)
call s:prepare()
call append(0, 'Searching for invalid plugins in '.g:plug_home)
call append(1, '')

" List of valid directories
let dirs = []
let errs = {}
let [cnt, total] = [0, len(g:plugs)]
for [name, spec] in items(g:plugs)
if !s:is_managed(name)
call add(dirs, spec.dir)
else
let [err, clean] = s:git_validate(spec, 1)
if clean
let errs[spec.dir] = s:lines(err)[0]
else
call add(dirs, spec.dir)
endif
endif
let cnt += 1
call s:progress_bar(2, repeat('=', cnt), total)
normal! 2G
redraw
endfor

let allowed = {}
for dir in dirs
let allowed[s:dirpath(s:plug_fnamemodify(dir, ':h:h'))] = 1
let allowed[dir] = 1
for child in s:glob_dir(dir)
let allowed[child] = 1
endfor
endfor

let todo = []
let found = sort(s:glob_dir(g:plug_home))
while !empty(found)
let f = remove(found, 0)
if !has_key(allowed, f) && isdirectory(f)
call add(todo, f)
call append(line('$'), '- ' . f)
if has_key(errs, f)
call append(line('$'), ' ' . errs[f])
endif
let found = filter(found, 'stridx(v:val, f) != 0')
end
endwhile

4
redraw
if empty(todo)
call append(line('$'), 'Already clean.')
else
let s:clean_count = 0
call append(3, ['Directories to delete:', ''])
redraw!
if a:force || s:ask_no_interrupt('Delete all directories?')
call s:delete([6, line('$')], 1)
else
call setline(4, 'Cancelled.')
nnoremap <silent> <buffer> d :set opfunc=<sid>delete_op<cr>g@
nmap <silent> <buffer> dd d_
xnoremap <silent> <buffer> d :<c-u>call <sid>delete_op(visualmode(), 1)<cr>
echo 'Delete the lines (d{motion}) to delete the corresponding directories'
endif
endif
4
setlocal nomodifiable
endfunction

function! s:delete_op(type, ...)
call s:delete(a:0 ? [line("'<"), line("'>")] : [line("'["), line("']")], 0)
endfunction

function! s:delete(range, force)
let [l1, l2] = a:range
let force = a:force
let err_count = 0
while l1 <= l2
let line = getline(l1)
if line =~ '^- ' && isdirectory(line[2:])
execute l1
redraw!
let answer = force ? 1 : s:ask('Delete '.line[2:].'?', 1)
let force = force || answer > 1
if answer
let err = s:rm_rf(line[2:])
setlocal modifiable
if empty(err)
call setline(l1, '~'.line[1:])
let s:clean_count += 1
else
delete _
call append(l1 - 1, s:format_message('x', line[1:], err))
let l2 += len(s:lines(err))
let err_count += 1
endif
let msg = printf('Removed %d directories.', s:clean_count)
if err_count > 0
let msg .= printf(' Failed to remove %d directories.', err_count)
endif
call setline(4, msg)
setlocal nomodifiable
endif
endif
let l1 += 1
endwhile
endfunction

function! s:upgrade()
echo 'Downloading the latest version of vim-plug'
redraw
let tmp = s:plug_tempname()
let new = tmp . '/plug.vim'

try
let out = s:system(['git', 'clone', '--depth', '1', s:plug_src, tmp])
if v:shell_error
return s:err('Error upgrading vim-plug: '. out)
endif

if readfile(s:me) ==# readfile(new)
echo 'vim-plug is already up-to-date'
return 0
else
call rename(s:me, s:me . '.old')
call rename(new, s:me)
unlet g:loaded_plug
echo 'vim-plug has been upgraded'
return 1
endif
finally
silent! call s:rm_rf(tmp)
endtry
endfunction

function! s:upgrade_specs()
for spec in values(g:plugs)
let spec.frozen = get(spec, 'frozen', 0)
endfor
endfunction

function! s:status()
call s:prepare()
call append(0, 'Checking plugins')
call append(1, '')

let ecnt = 0
let unloaded = 0
let [cnt, total] = [0, len(g:plugs)]
for [name, spec] in items(g:plugs)
let is_dir = isdirectory(spec.dir)
if has_key(spec, 'uri')
if is_dir
let [err, _] = s:git_validate(spec, 1)
let [valid, msg] = [empty(err), empty(err) ? 'OK' : err]
else
let [valid, msg] = [0, 'Not found. Try PlugInstall.']
endif
else
if is_dir
let [valid, msg] = [1, 'OK']
else
let [valid, msg] = [0, 'Not found.']
endif
endif
let cnt += 1
let ecnt += !valid
" `s:loaded` entry can be missing if PlugUpgraded
if is_dir && get(s:loaded, name, -1) == 0
let unloaded = 1
let msg .= ' (not loaded)'
endif
call s:progress_bar(2, repeat('=', cnt), total)
call append(3, s:format_message(valid ? '-' : 'x', name, msg))
normal! 2G
redraw
endfor
call setline(1, 'Finished. '.ecnt.' error(s).')
normal! gg
setlocal nomodifiable
if unloaded
echo "Press 'L' on each line to load plugin, or 'U' to update"
nnoremap <silent> <buffer> L :call <SID>status_load(line('.'))<cr>
xnoremap <silent> <buffer> L :call <SID>status_load(line('.'))<cr>
end
endfunction

function! s:extract_name(str, prefix, suffix)
return matchstr(a:str, '^'.a:prefix.' \zs[^:]\+\ze:.*'.a:suffix.'$')
endfunction

function! s:status_load(lnum)
let line = getline(a:lnum)
let name = s:extract_name(line, '-', '(not loaded)')
if !empty(name)
call plug#load(name)
setlocal modifiable
call setline(a:lnum, substitute(line, ' (not loaded)$', '', ''))
setlocal nomodifiable
endif
endfunction

function! s:status_update() range
let lines = getline(a:firstline, a:lastline)
let names = filter(map(lines, 's:extract_name(v:val, "[x-]", "")'), '!empty(v:val)')
if !empty(names)
echo
execute 'PlugUpdate' join(names)
endif
endfunction

function! s:is_preview_window_open()
silent! wincmd P
if &previewwindow
wincmd p
return 1
endif
endfunction

function! s:find_name(lnum)
for lnum in reverse(range(1, a:lnum))
let line = getline(lnum)
if empty(line)
return ''
endif
let name = s:extract_name(line, '-', '')
if !empty(name)
return name
endif
endfor
return ''
endfunction

function! s:preview_commit()
if b:plug_preview < 0
let b:plug_preview = !s:is_preview_window_open()
endif

let sha = matchstr(getline('.'), '^ \X*\zs[0-9a-f]\{7,9}')
if empty(sha)
return
endif

let name = s:find_name(line('.'))
if empty(name) || !has_key(g:plugs, name) || !isdirectory(g:plugs[name].dir)
return
endif

if exists('g:plug_pwindow') && !s:is_preview_window_open()
execute g:plug_pwindow
execute 'e' sha
else
execute 'pedit' sha
wincmd P
endif
setlocal previewwindow filetype=git buftype=nofile nobuflisted modifiable
let batchfile = ''
try
let [sh, shellcmdflag, shrd] = s:chsh(1)
let cmd = 'cd '.plug#shellescape(g:plugs[name].dir).' && git show --no-color --pretty=medium '.sha
if s:is_win
let [batchfile, cmd] = s:batchfile(cmd)
endif
execute 'silent %!' cmd
finally
let [&shell, &shellcmdflag, &shellredir] = [sh, shellcmdflag, shrd]
if s:is_win && filereadable(batchfile)
call delete(batchfile)
endif
endtry
setlocal nomodifiable
nnoremap <silent> <buffer> q :q<cr>
wincmd p
endfunction

function! s:section(flags)
call search('\(^[x-] \)\@<=[^:]\+:', a:flags)
endfunction

function! s:format_git_log(line)
let indent = ' '
let tokens = split(a:line, nr2char(1))
if len(tokens) != 5
return indent.substitute(a:line, '\s*$', '', '')
endif
let [graph, sha, refs, subject, date] = tokens
let tag = matchstr(refs, 'tag: [^,)]\+')
let tag = empty(tag) ? ' ' : ' ('.tag.') '
return printf('%s%s%s%s%s (%s)', indent, graph, sha, tag, subject, date)
endfunction

function! s:append_ul(lnum, text)
call append(a:lnum, ['', a:text, repeat('-', len(a:text))])
endfunction

function! s:diff()
call s:prepare()
call append(0, ['Collecting changes ...', ''])
let cnts = [0, 0]
let bar = ''
let total = filter(copy(g:plugs), 's:is_managed(v:key) && isdirectory(v:val.dir)')
call s:progress_bar(2, bar, len(total))
for origin in [1, 0]
let plugs = reverse(sort(items(filter(copy(total), (origin ? '' : '!').'(has_key(v:val, "commit") || has_key(v:val, "tag"))'))))
if empty(plugs)
continue
endif
call s:append_ul(2, origin ? 'Pending updates:' : 'Last update:')
for [k, v] in plugs
let branch = s:git_origin_branch(v)
if len(branch)
let range = origin ? '..origin/'.branch : 'HEAD@{1}..'
let cmd = ['git', 'log', '--graph', '--color=never']
if s:git_version_requirement(2, 10, 0)
call add(cmd, '--no-show-signature')
endif
call extend(cmd, ['--pretty=format:%x01%h%x01%d%x01%s%x01%cr', range])
if has_key(v, 'rtp')
call extend(cmd, ['--', v.rtp])
endif
let diff = s:system_chomp(cmd, v.dir)
if !empty(diff)
let ref = has_key(v, 'tag') ? (' (tag: '.v.tag.')') : has_key(v, 'commit') ? (' '.v.commit) : ''
call append(5, extend(['', '- '.k.':'.ref], map(s:lines(diff), 's:format_git_log(v:val)')))
let cnts[origin] += 1
endif
endif
let bar .= '='
call s:progress_bar(2, bar, len(total))
normal! 2G
redraw
endfor
if !cnts[origin]
call append(5, ['', 'N/A'])
endif
endfor
call setline(1, printf('%d plugin(s) updated.', cnts[0])
\ . (cnts[1] ? printf(' %d plugin(s) have pending updates.', cnts[1]) : ''))

if cnts[0] || cnts[1]
nnoremap <silent> <buffer> <plug>(plug-preview) :silent! call <SID>preview_commit()<cr>
if empty(maparg("\<cr>", 'n'))
nmap <buffer> <cr> <plug>(plug-preview)
endif
if empty(maparg('o', 'n'))
nmap <buffer> o <plug>(plug-preview)
endif
endif
if cnts[0]
nnoremap <silent> <buffer> X :call <SID>revert()<cr>
echo "Press 'X' on each block to revert the update"
endif
normal! gg
setlocal nomodifiable
endfunction

function! s:revert()
if search('^Pending updates', 'bnW')
return
endif

let name = s:find_name(line('.'))
if empty(name) || !has_key(g:plugs, name) ||
\ input(printf('Revert the update of %s? (y/N) ', name)) !~? '^y'
return
endif

call s:system('git reset --hard HEAD@{1} && git checkout '.plug#shellescape(g:plugs[name].branch).' --', g:plugs[name].dir)
setlocal modifiable
normal! "_dap
setlocal nomodifiable
echo 'Reverted'
endfunction

function! s:snapshot(force, ...) abort
call s:prepare()
setf vim
call append(0, ['" Generated by vim-plug',
\ '" '.strftime("%c"),
\ '" :source this file in vim to restore the snapshot',
\ '" or execute: vim -S snapshot.vim',
\ '', '', 'PlugUpdate!'])
1
let anchor = line('$') - 3
let names = sort(keys(filter(copy(g:plugs),
\'has_key(v:val, "uri") && !has_key(v:val, "commit") && isdirectory(v:val.dir)')))
for name in reverse(names)
let sha = s:git_revision(g:plugs[name].dir)
if !empty(sha)
call append(anchor, printf("silent! let g:plugs['%s'].commit = '%s'", name, sha))
redraw
endif
endfor

if a:0 > 0
let fn = s:plug_expand(a:1)
if filereadable(fn) && !(a:force || s:ask(a:1.' already exists. Overwrite?'))
return
endif
call writefile(getline(1, '$'), fn)
echo 'Saved as '.a:1
silent execute 'e' s:esc(fn)
setf vim
endif
endfunction

function! s:split_rtp()
return split(&rtp, '\\\@<!,')
endfunction

let s:first_rtp = s:escrtp(get(s:split_rtp(), 0, ''))
let s:last_rtp = s:escrtp(get(s:split_rtp(), -1, ''))

if exists('g:plugs')
let g:plugs_order = get(g:, 'plugs_order', keys(g:plugs))
call s:upgrade_specs()
call s:define_commands()
endif

let &cpo = s:cpo_save
unlet s:cpo_save