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don't error out early, if git not exists #392

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don't error out early, if git not exists #392

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27 changes: 23 additions & 4 deletions plug.vim
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Original file line number Diff line number Diff line change
Expand Up @@ -112,14 +112,17 @@ function! plug#begin(...)
return 1
endfunction

function! s:define_commands()
command! -nargs=+ -bar Plug call s:add(<args>)
function! s:git_exists()
if !executable('git')
return s:err('`git` executable not found. vim-plug requires git.')
endif
endfunction

function! s:define_commands()
command! -nargs=+ -bar Plug call s:add(<args>)
command! -nargs=0 -bar -bang PlugClean call s:clean(<bang>0)
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()
Expand Down Expand Up @@ -776,6 +779,10 @@ function! s:names(...)
endfunction

function! s:update_impl(pull, force, args) abort
if !s:git_exists()
return
endif

let args = copy(a:args)
let threads = (len(args) > 0 && args[-1] =~ '^[1-9][0-9]*$') ?
\ remove(args, -1) : get(g:, 'plug_threads', 16)
Expand Down Expand Up @@ -1847,6 +1854,10 @@ function! s:clean(force)
endfunction

function! s:upgrade()
if !s:git_exists()
return
endif

echo 'Downloading the latest version of vim-plug'
redraw
let tmp = tempname()
Expand Down Expand Up @@ -1880,6 +1891,9 @@ function! s:upgrade_specs()
endfunction

function! s:status()
if !s:git_exists()
return
endif
call s:prepare()
call append(0, 'Checking plugins')
call append(1, '')
Expand Down Expand Up @@ -2012,6 +2026,9 @@ function! s:append_ul(lnum, text)
endfunction

function! s:diff()
if !s:git_exists()
return
endif
call s:prepare()
call append(0, ['Collecting changes ...', ''])
let cnts = [0, 0]
Expand Down Expand Up @@ -2071,6 +2088,9 @@ function! s:revert()
endfunction

function! s:snapshot(force, ...) abort
if !s:git_exists()
return
endif
call s:prepare()
setf vim
call append(0, ['" Generated by vim-plug',
Expand Down Expand Up @@ -2117,4 +2137,3 @@ endif

let &cpo = s:cpo_save
unlet s:cpo_save