neovim/runtime/autoload/health/provider.vim

748 lines
26 KiB
VimL

let s:shell_error = 0
function! s:is_bad_response(s) abort
return a:s =~? '\v(^unable)|(^error)|(^outdated)'
endfunction
function! s:trim(s) abort
return substitute(a:s, '^\_s*\|\_s*$', '', 'g')
endfunction
" Convert '\' to '/'. Collapse '//' and '/./'.
function! s:normalize_path(s) abort
return substitute(substitute(a:s, '\', '/', 'g'), '/\./\|/\+', '/', 'g')
endfunction
" Returns TRUE if `cmd` exits with success, else FALSE.
function! s:cmd_ok(cmd) abort
call system(a:cmd)
return v:shell_error == 0
endfunction
" Simple version comparison.
function! s:version_cmp(a, b) abort
let a = split(a:a, '\.', 0)
let b = split(a:b, '\.', 0)
for i in range(len(a))
if str2nr(a[i]) > str2nr(b[i])
return 1
elseif str2nr(a[i]) < str2nr(b[i])
return -1
endif
endfor
return 0
endfunction
" Handler for s:system() function.
function! s:system_handler(jobid, data, event) dict abort
if a:event ==# 'stderr'
if self.add_stderr_to_output
let self.output .= join(a:data, '')
else
let self.stderr .= join(a:data, '')
endif
elseif a:event ==# 'stdout'
let self.output .= join(a:data, '')
elseif a:event ==# 'exit'
let s:shell_error = a:data
endif
endfunction
" Attempts to construct a shell command from an args list.
" Only for display, to help users debug a failed command.
function! s:shellify(cmd) abort
if type(a:cmd) != type([])
return a:cmd
endif
return join(map(copy(a:cmd),
\'v:val =~# ''\m[^\-.a-zA-Z_/]'' ? shellescape(v:val) : v:val'), ' ')
endfunction
" Run a system command and timeout after 30 seconds.
function! s:system(cmd, ...) abort
let stdin = a:0 ? a:1 : ''
let ignore_error = a:0 > 2 ? a:3 : 0
let opts = {
\ 'add_stderr_to_output': a:0 > 1 ? a:2 : 0,
\ 'output': '',
\ 'stderr': '',
\ 'on_stdout': function('s:system_handler'),
\ 'on_stderr': function('s:system_handler'),
\ 'on_exit': function('s:system_handler'),
\ }
let jobid = jobstart(a:cmd, opts)
if jobid < 1
call health#report_error(printf('Command error (job=%d): `%s` (in %s)',
\ jobid, s:shellify(a:cmd), string(getcwd())))
let s:shell_error = 1
return opts.output
endif
if !empty(stdin)
call jobsend(jobid, stdin)
endif
let res = jobwait([jobid], 30000)
if res[0] == -1
call health#report_error(printf('Command timed out: %s', s:shellify(a:cmd)))
call jobstop(jobid)
elseif s:shell_error != 0 && !ignore_error
let emsg = printf("Command error (job=%d, exit code %d): `%s` (in %s)",
\ jobid, s:shell_error, s:shellify(a:cmd), string(getcwd()))
if !empty(opts.output)
let emsg .= "\noutput: " . opts.output
end
if !empty(opts.stderr)
let emsg .= "\nstderr: " . opts.stderr
end
call health#report_error(emsg)
endif
return opts.output
endfunction
function! s:systemlist(cmd, ...) abort
let stdout = split(s:system(a:cmd, a:0 ? a:1 : ''), "\n")
if a:0 > 1 && !empty(a:2)
return filter(stdout, '!empty(v:val)')
endif
return stdout
endfunction
" Fetch the contents of a URL.
function! s:download(url) abort
let has_curl = executable('curl')
if has_curl && system(['curl', '-V']) =~# 'Protocols:.*https'
let rv = s:system(['curl', '-sL', a:url], '', 1, 1)
return s:shell_error ? 'curl error with '.a:url.': '.s:shell_error : rv
elseif executable('python')
let script = "
\try:\n
\ from urllib.request import urlopen\n
\except ImportError:\n
\ from urllib2 import urlopen\n
\\n
\response = urlopen('".a:url."')\n
\print(response.read().decode('utf8'))\n
\"
let rv = s:system(['python', '-c', script])
return empty(rv) && s:shell_error
\ ? 'python urllib.request error: '.s:shell_error
\ : rv
endif
return 'missing `curl` '
\ .(has_curl ? '(with HTTPS support) ' : '')
\ .'and `python`, cannot make web request'
endfunction
" Check for clipboard tools.
function! s:check_clipboard() abort
call health#report_start('Clipboard (optional)')
if !empty($TMUX) && executable('tmux') && executable('pbpaste') && !s:cmd_ok('pbpaste')
let tmux_version = matchstr(system('tmux -V'), '\d\+\.\d\+')
call health#report_error('pbcopy does not work with tmux version: '.tmux_version,
\ ['Install tmux 2.6+. https://superuser.com/q/231130',
\ 'or use tmux with reattach-to-user-namespace. https://superuser.com/a/413233'])
endif
let clipboard_tool = provider#clipboard#Executable()
if exists('g:clipboard') && empty(clipboard_tool)
call health#report_error(
\ provider#clipboard#Error(),
\ ["Use the example in :help g:clipboard as a template, or don't set g:clipboard at all."])
elseif empty(clipboard_tool)
call health#report_warn(
\ 'No clipboard tool found. Clipboard registers (`"+` and `"*`) will not work.',
\ [':help clipboard'])
else
call health#report_ok('Clipboard tool found: '. clipboard_tool)
endif
endfunction
" Get the latest Nvim Python client (pynvim) version from PyPI.
function! s:latest_pypi_version() abort
let pypi_version = 'unable to get pypi response'
let pypi_response = s:download('https://pypi.python.org/pypi/pynvim/json')
if !empty(pypi_response)
try
let pypi_data = json_decode(pypi_response)
catch /E474/
return 'error: '.pypi_response
endtry
let pypi_version = get(get(pypi_data, 'info', {}), 'version', 'unable to parse')
endif
return pypi_version
endfunction
" Get version information using the specified interpreter. The interpreter is
" used directly in case breaking changes were introduced since the last time
" Nvim's Python client was updated.
"
" Returns: [
" {python executable version},
" {current nvim version},
" {current pypi nvim status},
" {installed version status}
" ]
function! s:version_info(python) abort
let pypi_version = s:latest_pypi_version()
let python_version = s:trim(s:system([
\ a:python,
\ '-c',
\ 'import sys; print(".".join(str(x) for x in sys.version_info[:3]))',
\ ]))
if empty(python_version)
let python_version = 'unable to parse '.a:python.' response'
endif
let nvim_path = s:trim(s:system([
\ a:python, '-c',
\ 'import sys; ' .
\ 'sys.path = list(filter(lambda x: x != "", sys.path)); ' .
\ 'import neovim; print(neovim.__file__)']))
if s:shell_error || empty(nvim_path)
return [python_version, 'unable to load neovim Python module', pypi_version,
\ nvim_path]
endif
" Assuming that multiple versions of a package are installed, sort them
" numerically in descending order.
function! s:compare(metapath1, metapath2) abort
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
" Try to get neovim.VERSION (added in 0.1.11dev).
let nvim_version = s:system([a:python, '-c',
\ 'from neovim import VERSION as v; '.
\ 'print("{}.{}.{}{}".format(v.major, v.minor, v.patch, v.prerelease))'],
\ '', 1, 1)
if empty(nvim_version)
let nvim_version = 'unable to find pynvim module version'
let base = fnamemodify(nvim_path, ':h')
let metas = glob(base.'-*/METADATA', 1, 1)
\ + glob(base.'-*/PKG-INFO', 1, 1)
\ + glob(base.'.egg-info/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
endif
endif
let nvim_path_base = fnamemodify(nvim_path, ':~:h')
let version_status = 'unknown; '.nvim_path_base
if !s:is_bad_response(nvim_version) && !s:is_bad_response(pypi_version)
if s:version_cmp(nvim_version, pypi_version) == -1
let version_status = 'outdated; from '.nvim_path_base
else
let version_status = 'up to date'
endif
endif
return [python_version, nvim_version, pypi_version, version_status]
endfunction
" Check the Python interpreter's usability.
function! s:check_bin(bin) abort
if !filereadable(a:bin) && (!has('win32') || !filereadable(a:bin.'.exe'))
call health#report_error(printf('"%s" was not found.', a:bin))
return 0
elseif executable(a:bin) != 1
call health#report_error(printf('"%s" is not executable.', a:bin))
return 0
endif
return 1
endfunction
" Check "loaded" var for given a:provider.
" Returns 1 if the caller should return (skip checks).
function! s:disabled_via_loaded_var(provider) abort
let loaded_var = 'g:loaded_'.a:provider.'_provider'
if exists(loaded_var) && !exists('*provider#'.a:provider.'#Call')
let v = eval(loaded_var)
if 0 is v
call health#report_info('Disabled ('.loaded_var.'='.v.').')
return 1
else
call health#report_info('Disabled ('.loaded_var.'='.v.'). This might be due to some previous error.')
endif
endif
return 0
endfunction
function! s:check_python(version) abort
call health#report_start('Python ' . a:version . ' provider (optional)')
let pyname = 'python'.(a:version == 2 ? '' : '3')
let python_exe = ''
let venv = exists('$VIRTUAL_ENV') ? resolve($VIRTUAL_ENV) : ''
let host_prog_var = pyname.'_host_prog'
let python_multiple = []
if s:disabled_via_loaded_var(pyname)
return
endif
let [pyenv, pyenv_root] = s:check_for_pyenv()
if exists('g:'.host_prog_var)
call health#report_info(printf('Using: g:%s = "%s"', host_prog_var, get(g:, host_prog_var)))
endif
let [pyname, pythonx_errors] = provider#pythonx#Detect(a:version)
if empty(pyname)
call health#report_warn('No Python executable found that can `import neovim`. '
\ . 'Using the first available executable for diagnostics.')
elseif exists('g:'.host_prog_var)
let python_exe = pyname
endif
" No Python executable could `import neovim`, or host_prog_var was used.
if !empty(pythonx_errors)
call health#report_error('Python provider error:', pythonx_errors)
elseif !empty(pyname) && empty(python_exe)
if !exists('g:'.host_prog_var)
call health#report_info(printf('`g:%s` is not set. Searching for '
\ . '%s in the environment.', host_prog_var, pyname))
endif
if !empty(pyenv)
let python_exe = s:trim(s:system([pyenv, 'which', pyname], '', 1))
if empty(python_exe)
call health#report_warn(printf('pyenv could not find %s.', pyname))
endif
endif
if empty(python_exe)
let python_exe = exepath(pyname)
if exists('$PATH')
for path in split($PATH, has('win32') ? ';' : ':')
let path_bin = s:normalize_path(path.'/'.pyname)
if path_bin != s:normalize_path(python_exe)
\ && index(python_multiple, path_bin) == -1
\ && executable(path_bin)
call add(python_multiple, path_bin)
endif
endfor
if len(python_multiple)
" This is worth noting since the user may install something
" that changes $PATH, like homebrew.
call health#report_info(printf('Multiple %s executables found. '
\ . 'Set `g:%s` to avoid surprises.', pyname, host_prog_var))
endif
if python_exe =~# '\<shims\>'
call health#report_warn(printf('`%s` appears to be a pyenv shim.', python_exe), [
\ '`pyenv` is not in $PATH, your pyenv installation is broken. '
\ .'Set `g:'.host_prog_var.'` to avoid surprises.',
\ ])
endif
endif
endif
endif
if !empty(python_exe) && !exists('g:'.host_prog_var)
if empty(venv) && !empty(pyenv)
\ && !empty(pyenv_root) && resolve(python_exe) !~# '^'.pyenv_root.'/'
call health#report_warn('pyenv is not set up optimally.', [
\ printf('Create a virtualenv specifically '
\ . 'for Nvim using pyenv, and set `g:%s`. This will avoid '
\ . 'the need to install the pynvim module in each '
\ . 'version/virtualenv.', host_prog_var)
\ ])
elseif !empty(venv)
if !empty(pyenv_root)
let venv_root = pyenv_root
else
let venv_root = fnamemodify(venv, ':h')
endif
if resolve(python_exe) !~# '^'.venv_root.'/'
call health#report_warn('Your virtualenv is not set up optimally.', [
\ printf('Create a virtualenv specifically '
\ . 'for Nvim and use `g:%s`. This will avoid '
\ . 'the need to install the pynvim module in each '
\ . 'virtualenv.', host_prog_var)
\ ])
endif
endif
endif
if empty(python_exe) && !empty(pyname)
" An error message should have already printed.
call health#report_error(printf('`%s` was not found.', pyname))
elseif !empty(python_exe) && !s:check_bin(python_exe)
let python_exe = ''
endif
" Diagnostic output
call health#report_info('Executable: ' . (empty(python_exe) ? 'Not found' : python_exe))
if len(python_multiple)
for path_bin in python_multiple
call health#report_info('Other python executable: ' . path_bin)
endfor
endif
let pip = 'pip' . (a:version == 2 ? '' : '3')
if empty(python_exe)
" No Python executable can import 'neovim'. Check if any Python executable
" can import 'pynvim'. If so, that Python failed to import 'neovim' as
" well, which is most probably due to a failed pip upgrade:
" https://github.com/neovim/neovim/wiki/Following-HEAD#20181118
let [pynvim_exe, errors] = provider#pythonx#DetectByModule('pynvim', a:version)
if !empty(pynvim_exe)
call health#report_error(
\ 'Detected pip upgrade failure: Python executable can import "pynvim" but '
\ . 'not "neovim": '. pynvim_exe,
\ "Use that Python version to reinstall \"pynvim\" and optionally \"neovim\".\n"
\ . pip ." uninstall pynvim neovim\n"
\ . pip ." install pynvim\n"
\ . pip ." install neovim # only if needed by third-party software")
endif
else
let [pyversion, current, latest, status] = s:version_info(python_exe)
if a:version != str2nr(pyversion)
call health#report_warn('Unexpected Python version.' .
\ ' This could lead to confusing error messages.')
endif
if a:version == 3 && str2float(pyversion) < 3.3
call health#report_warn('Python 3.3+ is recommended.')
endif
call health#report_info('Python version: ' . pyversion)
if s:is_bad_response(status)
call health#report_info(printf('pynvim version: %s (%s)', current, status))
else
call health#report_info(printf('pynvim version: %s', current))
endif
if s:is_bad_response(current)
call health#report_error(
\ "pynvim is not installed.\nError: ".current,
\ ['Run in shell: '. pip .' install pynvim'])
endif
if s:is_bad_response(latest)
call health#report_warn('Could not contact PyPI to get latest version.')
call health#report_error('HTTP request failed: '.latest)
elseif s:is_bad_response(status)
call health#report_warn(printf('Latest pynvim is NOT installed: %s', latest))
elseif !s:is_bad_response(current)
call health#report_ok(printf('Latest pynvim is installed.'))
endif
endif
endfunction
" Check if pyenv is available and a valid pyenv root can be found, then return
" their respective paths. If either of those is invalid, return two empty
" strings, effectivly ignoring pyenv.
function! s:check_for_pyenv() abort
let pyenv_path = resolve(exepath('pyenv'))
if empty(pyenv_path)
return ['', '']
endif
call health#report_info('pyenv: Path: '. pyenv_path)
let pyenv_root = exists('$PYENV_ROOT') ? resolve($PYENV_ROOT) : ''
if empty(pyenv_root)
let pyenv_root = s:trim(s:system([pyenv_path, 'root']))
call health#report_info('pyenv: $PYENV_ROOT is not set. Infer from `pyenv root`.')
endif
if !isdirectory(pyenv_root)
call health#report_warn(
\ printf('pyenv: Root does not exist: %s. '
\ . 'Ignoring pyenv for all following checks.', pyenv_root))
return ['', '']
endif
call health#report_info('pyenv: Root: '.pyenv_root)
return [pyenv_path, pyenv_root]
endfunction
" Resolves Python executable path by invoking and checking `sys.executable`.
function! s:python_exepath(invocation) abort
return s:normalize_path(system(a:invocation
\ . ' -c "import sys; sys.stdout.write(sys.executable)"'))
endfunction
" Checks that $VIRTUAL_ENV Python executables are found at front of $PATH in
" Nvim and subshells.
function! s:check_virtualenv() abort
call health#report_start('Python virtualenv')
if !exists('$VIRTUAL_ENV')
call health#report_ok('no $VIRTUAL_ENV')
return
endif
let errors = []
" Keep hints as dict keys in order to discard duplicates.
let hints = {}
" The virtualenv should contain some Python executables, and those
" executables should be first both on Nvim's $PATH and the $PATH of
" subshells launched from Nvim.
let bin_dir = has('win32') ? '/Scripts' : '/bin'
let venv_bins = glob($VIRTUAL_ENV . bin_dir . '/python*', v:true, v:true)
" XXX: Remove irrelevant executables found in bin/.
let venv_bins = filter(venv_bins, 'v:val !~# "python-config"')
if len(venv_bins)
for venv_bin in venv_bins
let venv_bin = s:normalize_path(venv_bin)
let py_bin_basename = fnamemodify(venv_bin, ':t')
let nvim_py_bin = s:python_exepath(exepath(py_bin_basename))
let subshell_py_bin = s:python_exepath(py_bin_basename)
if venv_bin !=# nvim_py_bin
call add(errors, '$PATH yields this '.py_bin_basename.' executable: '.nvim_py_bin)
let hint = '$PATH ambiguities arise if the virtualenv is not '
\.'properly activated prior to launching Nvim. Close Nvim, activate the virtualenv, '
\.'check that invoking Python from the command line launches the correct one, '
\.'then relaunch Nvim.'
let hints[hint] = v:true
endif
if venv_bin !=# subshell_py_bin
call add(errors, '$PATH in subshells yields this '
\.py_bin_basename . ' executable: '.subshell_py_bin)
let hint = '$PATH ambiguities in subshells typically are '
\.'caused by your shell config overriding the $PATH previously set by the '
\.'virtualenv. Either prevent them from doing so, or use this workaround: '
\.'https://vi.stackexchange.com/a/7654'
let hints[hint] = v:true
endif
endfor
else
call add(errors, 'no Python executables found in the virtualenv '.bin_dir.' directory.')
endif
if len(errors)
let msg = '$VIRTUAL_ENV is set to: '.$VIRTUAL_ENV
if len(venv_bins)
let msg .= "\nAnd its ".bin_dir.' directory contains: '
\.join(map(venv_bins, "fnamemodify(v:val, ':t')"), ', ')
endif
let conj = "\nBut "
for error in errors
let msg .= conj.error
let conj = "\nAnd "
endfor
let msg .= "\nSo invoking Python may lead to unexpected results."
call health#report_warn(msg, keys(hints))
else
call health#report_ok('$VIRTUAL_ENV provides :python, :python3, et al.')
endif
endfunction
function! s:check_ruby() abort
call health#report_start('Ruby provider (optional)')
if s:disabled_via_loaded_var('ruby')
return
endif
if !executable('ruby') || !executable('gem')
call health#report_warn(
\ '`ruby` and `gem` must be in $PATH.',
\ ['Install Ruby and verify that `ruby` and `gem` commands work.'])
return
endif
call health#report_info('Ruby: '. s:system('ruby -v'))
let host = provider#ruby#Detect()
if empty(host)
call health#report_warn('`neovim-ruby-host` not found.',
\ ['Run `gem install neovim` to ensure the neovim RubyGem is installed.',
\ 'Run `gem environment` to ensure the gem bin directory is in $PATH.',
\ 'If you are using rvm/rbenv/chruby, try "rehashing".',
\ 'See :help g:ruby_host_prog for non-standard gem installations.'])
return
endif
call health#report_info('Host: '. host)
let latest_gem_cmd = has('win32') ? 'cmd /c gem list -ra ^^neovim$' : 'gem list -ra ^neovim$'
let latest_gem = s:system(split(latest_gem_cmd))
if s:shell_error || empty(latest_gem)
call health#report_error('Failed to run: '. latest_gem_cmd,
\ ["Make sure you're connected to the internet.",
\ 'Are you behind a firewall or proxy?'])
return
endif
let latest_gem = get(split(latest_gem, 'neovim (\|, \|)$' ), 1, 'not found')
let current_gem_cmd = host .' --version'
let current_gem = s:system(current_gem_cmd)
if s:shell_error
call health#report_error('Failed to run: '. current_gem_cmd,
\ ['Report this issue with the output of: ', current_gem_cmd])
return
endif
if s:version_cmp(current_gem, latest_gem) == -1
call health#report_warn(
\ printf('Gem "neovim" is out-of-date. Installed: %s, latest: %s',
\ current_gem, latest_gem),
\ ['Run in shell: gem update neovim'])
else
call health#report_ok('Latest "neovim" gem is installed: '. current_gem)
endif
endfunction
function! s:check_node() abort
call health#report_start('Node.js provider (optional)')
if s:disabled_via_loaded_var('node')
return
endif
if !executable('node') || (!executable('npm') && !executable('yarn'))
call health#report_warn(
\ '`node` and `npm` (or `yarn`) must be in $PATH.',
\ ['Install Node.js and verify that `node` and `npm` (or `yarn`) commands work.'])
return
endif
let node_v = get(split(s:system('node -v'), "\n"), 0, '')
call health#report_info('Node.js: '. node_v)
if s:shell_error || s:version_cmp(node_v[1:], '6.0.0') < 0
call health#report_warn('Nvim node.js host does not support '.node_v)
" Skip further checks, they are nonsense if nodejs is too old.
return
endif
if !provider#node#can_inspect()
call health#report_warn('node.js on this system does not support --inspect-brk so $NVIM_NODE_HOST_DEBUG is ignored.')
endif
let host = provider#node#Detect()
if empty(host)
call health#report_warn('Missing "neovim" npm (or yarn) package.',
\ ['Run in shell: npm install -g neovim',
\ 'Run in shell (if you use yarn): yarn global add neovim'])
return
endif
call health#report_info('Nvim node.js host: '. host)
let manager = executable('npm') ? 'npm' : 'yarn'
let latest_npm_cmd = has('win32') ?
\ 'cmd /c '. manager .' info neovim --json' :
\ manager .' info neovim --json'
let latest_npm = s:system(split(latest_npm_cmd))
if s:shell_error || empty(latest_npm)
call health#report_error('Failed to run: '. latest_npm_cmd,
\ ["Make sure you're connected to the internet.",
\ 'Are you behind a firewall or proxy?'])
return
endif
try
let pkg_data = json_decode(latest_npm)
catch /E474/
return 'error: '.latest_npm
endtry
let latest_npm = get(get(pkg_data, 'dist-tags', {}), 'latest', 'unable to parse')
let current_npm_cmd = ['node', host, '--version']
let current_npm = s:system(current_npm_cmd)
if s:shell_error
call health#report_error('Failed to run: '. string(current_npm_cmd),
\ ['Report this issue with the output of: ', string(current_npm_cmd)])
return
endif
if s:version_cmp(current_npm, latest_npm) == -1
call health#report_warn(
\ printf('Package "neovim" is out-of-date. Installed: %s, latest: %s',
\ current_npm, latest_npm),
\ ['Run in shell: npm install -g neovim',
\ 'Run in shell (if you use yarn): yarn global add neovim'])
else
call health#report_ok('Latest "neovim" npm/yarn package is installed: '. current_npm)
endif
endfunction
function! s:check_perl() abort
call health#report_start('Perl provider (optional)')
if s:disabled_via_loaded_var('perl')
return
endif
if !executable('perl') || !executable('cpanm')
call health#report_warn(
\ '`perl` and `cpanm` must be in $PATH.',
\ ['Install Perl and cpanminus and verify that `perl` and `cpanm` commands work.'])
return
endif
let perl_v = get(split(s:system(['perl', '-W', '-e', 'print $^V']), "\n"), 0, '')
call health#report_info('Perl: '. perl_v)
if s:shell_error
call health#report_warn('Nvim perl host does not support '.perl_v)
" Skip further checks, they are nonsense if perl is too old.
return
endif
let host = provider#perl#Detect()
if empty(host)
call health#report_warn('Missing "Neovim::Ext" cpan module.',
\ ['Run in shell: cpanm Neovim::Ext'])
return
endif
call health#report_info('Nvim perl host: '. host)
let latest_cpan_cmd = 'cpanm --info -q Neovim::Ext'
let latest_cpan = s:system(latest_cpan_cmd)
if s:shell_error || empty(latest_cpan) || latest_cpan[0] ==# '!'
call health#report_error('Failed to run: '. latest_cpan_cmd,
\ ["Make sure you're connected to the internet.",
\ 'Are you behind a firewall or proxy?'])
return
endif
let latest_cpan = matchstr(latest_cpan, '\(\.\?\d\)\+')
let current_cpan_cmd = [host, '-W', '-MNeovim::Ext', '-e', 'print $Neovim::Ext::VERSION']
let current_cpan = s:system(current_cpan_cmd)
if s:shell_error
call health#report_error('Failed to run: '. string(current_cpan_cmd),
\ ['Report this issue with the output of: ', string(current_cpan_cmd)])
return
endif
if s:version_cmp(current_cpan, latest_cpan) == -1
call health#report_warn(
\ printf('Module "Neovim::Ext" is out-of-date. Installed: %s, latest: %s',
\ current_cpan, latest_cpan),
\ ['Run in shell: cpanm Neovim::Ext'])
else
call health#report_ok('Latest "Neovim::Ext" cpan module is installed: '. current_cpan)
endif
endfunction
function! health#provider#check() abort
call s:check_clipboard()
call s:check_python(2)
call s:check_python(3)
call s:check_virtualenv()
call s:check_ruby()
call s:check_node()
call s:check_perl()
endfunction