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CheckHealth: choose correct path for the latest version (#5446)

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If multiple versions of a package are installed, the provider health check could
choose a wrong path:

  /usr/local/lib/python3.5/site-packages/neovim-0.1.10-py3.5.egg-info/PKG-INFO
  /usr/local/lib/python3.5/site-packages/neovim-0.1.9-py3.5.egg-info/PKG-INFO

Prior to this change :CheckHealth could falsely show 0.1.9 as the installed
version, since glob() doesn't enforce any predictable order.

Now we sort all potential paths numerically in descending order and just look at
the first path instead.
This commit is contained in:
Marco Hinz 2016-10-08 16:34:54 +02:00 committed by Justin M. Keyes
parent 91d13bd861
commit 31f6334aa8
1 changed files with 15 additions and 3 deletions
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18
runtime/autoload/health/provider.vim
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@ -104,15 +104,27 @@ function! s:version_info(python) abort
return [python_version, 'unable to find neovim executable', pypi_version, 'unable to get neovim executable']
endif
" Assuming that multiple versions of a package are installed, sort them
" numerically in descending order.
function! s:compare(metapath1, metapath2)
let a = matchstr(fnamemodify(a:metapath1, ':p:h:t'), '[0-9.]\+')
let b = matchstr(fnamemodify(a:metapath2, ':p:h:t'), '[0-9.]\+')
return a == b ? 0 : a > b ? 1 : -1
endfunction
let nvim_version = 'unable to find neovim version'
let base = fnamemodify(nvim_path, ':h')
for meta in glob(base.'-*/METADATA', 1, 1) + glob(base.'-*/PKG-INFO', 1, 1)
for meta_line in readfile(meta)
let metas = glob(base.'-*/METADATA', 1, 1) + glob(base.'-*/PKG-INFO', 1, 1)
let metas = sort(metas, 's:compare')
if !empty(metas)
for meta_line in readfile(metas[0])
if meta_line =~# '^Version:'
let nvim_version = matchstr(meta_line, '^Version: \zs\S\+')
break
endif
endfor
endfor
endif
let version_status = 'unknown'
if !s:is_bad_response(nvim_version) && !s:is_bad_response(pypi_version)