neovim/runtime/lua/vim/provider/health.lua

895 lines
28 KiB
Lua

local health = vim.health
local iswin = vim.uv.os_uname().sysname == 'Windows_NT'
local M = {}
local function cmd_ok(cmd)
local out = vim.fn.system(cmd)
return vim.v.shell_error == 0, out
end
-- Attempts to construct a shell command from an args list.
-- Only for display, to help users debug a failed command.
local function shellify(cmd)
if type(cmd) ~= 'table' then
return cmd
end
local escaped = {}
for i, v in ipairs(cmd) do
if v:match('[^A-Za-z_/.-]') then
escaped[i] = vim.fn.shellescape(v)
else
escaped[i] = v
end
end
return table.concat(escaped, ' ')
end
-- Handler for s:system() function.
local function system_handler(self, _, data, event)
if event == 'stderr' then
if self.add_stderr_to_output then
self.output = self.output .. table.concat(data, '')
else
self.stderr = self.stderr .. table.concat(data, '')
end
elseif event == 'stdout' then
self.output = self.output .. table.concat(data, '')
end
end
--- @param cmd table List of command arguments to execute
--- @param args? table Optional arguments:
--- - stdin (string): Data to write to the job's stdin
--- - stderr (boolean): Append stderr to stdout
--- - ignore_error (boolean): If true, ignore error output
--- - timeout (number): Number of seconds to wait before timing out (default 30)
local function system(cmd, args)
args = args or {}
local stdin = args.stdin or ''
local stderr = vim.F.if_nil(args.stderr, false)
local ignore_error = vim.F.if_nil(args.ignore_error, false)
local shell_error_code = 0
local opts = {
add_stderr_to_output = stderr,
output = '',
stderr = '',
on_stdout = system_handler,
on_stderr = system_handler,
on_exit = function(_, data)
shell_error_code = data
end,
}
local jobid = vim.fn.jobstart(cmd, opts)
if jobid < 1 then
local message =
string.format('Command error (job=%d): %s (in %s)', jobid, shellify(cmd), vim.uv.cwd())
error(message)
return opts.output, 1
end
if stdin:find('^%s$') then
vim.fn.chansend(jobid, stdin)
end
local res = vim.fn.jobwait({ jobid }, vim.F.if_nil(args.timeout, 30) * 1000)
if res[1] == -1 then
error('Command timed out: ' .. shellify(cmd))
vim.fn.jobstop(jobid)
elseif shell_error_code ~= 0 and not ignore_error then
local emsg = string.format(
'Command error (job=%d, exit code %d): %s (in %s)',
jobid,
shell_error_code,
shellify(cmd),
vim.uv.cwd()
)
if opts.output:find('%S') then
emsg = string.format('%s\noutput: %s', emsg, opts.output)
end
if opts.stderr:find('%S') then
emsg = string.format('%s\nstderr: %s', emsg, opts.stderr)
end
error(emsg)
end
return vim.trim(vim.fn.system(cmd)), shell_error_code
end
---@param provider string
local function provider_disabled(provider)
local loaded_var = 'loaded_' .. provider .. '_provider'
local v = vim.g[loaded_var]
if v == 0 then
health.info('Disabled (' .. loaded_var .. '=' .. v .. ').')
return true
end
return false
end
local function clipboard()
health.start('Clipboard (optional)')
if
os.getenv('TMUX')
and vim.fn.executable('tmux') == 1
and vim.fn.executable('pbpaste') == 1
and not cmd_ok('pbpaste')
then
local tmux_version = string.match(vim.fn.system('tmux -V'), '%d+%.%d+')
local advice = {
'Install tmux 2.6+. https://superuser.com/q/231130',
'or use tmux with reattach-to-user-namespace. https://superuser.com/a/413233',
}
health.error('pbcopy does not work with tmux version: ' .. tmux_version, advice)
end
local clipboard_tool = vim.fn['provider#clipboard#Executable']() ---@type string
if vim.g.clipboard ~= nil and clipboard_tool == '' then
local error_message = vim.fn['provider#clipboard#Error']() ---@type string
health.error(
error_message,
"Use the example in :help g:clipboard as a template, or don't set g:clipboard at all."
)
elseif clipboard_tool:find('^%s*$') then
health.warn(
'No clipboard tool found. Clipboard registers (`"+` and `"*`) will not work.',
':help clipboard'
)
else
health.ok('Clipboard tool found: ' .. clipboard_tool)
end
end
local function node()
health.start('Node.js provider (optional)')
if provider_disabled('node') then
return
end
if
vim.fn.executable('node') == 0
or (
vim.fn.executable('npm') == 0
and vim.fn.executable('yarn') == 0
and vim.fn.executable('pnpm') == 0
)
then
health.warn(
'`node` and `npm` (or `yarn`, `pnpm`) must be in $PATH.',
'Install Node.js and verify that `node` and `npm` (or `yarn`, `pnpm`) commands work.'
)
return
end
-- local node_v = vim.fn.split(system({'node', '-v'}), "\n")[1] or ''
local ok, node_v = cmd_ok({ 'node', '-v' })
health.info('Node.js: ' .. node_v)
if not ok or vim.version.lt(node_v, '6.0.0') then
health.warn('Nvim node.js host does not support Node ' .. node_v)
-- Skip further checks, they are nonsense if nodejs is too old.
return
end
if vim.fn['provider#node#can_inspect']() == 0 then
health.warn(
'node.js on this system does not support --inspect-brk so $NVIM_NODE_HOST_DEBUG is ignored.'
)
end
local node_detect_table = vim.fn['provider#node#Detect']() ---@type string[]
local host = node_detect_table[1]
if host:find('^%s*$') then
health.warn('Missing "neovim" npm (or yarn, pnpm) package.', {
'Run in shell: npm install -g neovim',
'Run in shell (if you use yarn): yarn global add neovim',
'Run in shell (if you use pnpm): pnpm install -g neovim',
'You may disable this provider (and warning) by adding `let g:loaded_node_provider = 0` to your init.vim',
})
return
end
health.info('Nvim node.js host: ' .. host)
local manager = 'npm'
if vim.fn.executable('yarn') == 1 then
manager = 'yarn'
elseif vim.fn.executable('pnpm') == 1 then
manager = 'pnpm'
end
local latest_npm_cmd = (
iswin and 'cmd /c ' .. manager .. ' info neovim --json' or manager .. ' info neovim --json'
)
local latest_npm
ok, latest_npm = cmd_ok(vim.split(latest_npm_cmd, ' '))
if not ok or latest_npm:find('^%s$') then
health.error(
'Failed to run: ' .. latest_npm_cmd,
{ "Make sure you're connected to the internet.", 'Are you behind a firewall or proxy?' }
)
return
end
local pcall_ok, pkg_data = pcall(vim.json.decode, latest_npm)
if not pcall_ok then
return 'error: ' .. latest_npm
end
local latest_npm_subtable = pkg_data['dist-tags'] or {}
latest_npm = latest_npm_subtable['latest'] or 'unable to parse'
local current_npm_cmd = { 'node', host, '--version' }
local current_npm
ok, current_npm = cmd_ok(current_npm_cmd)
if not ok then
health.error(
'Failed to run: ' .. table.concat(current_npm_cmd, ' '),
{ 'Report this issue with the output of: ', table.concat(current_npm_cmd, ' ') }
)
return
end
if latest_npm ~= 'unable to parse' and vim.version.lt(current_npm, latest_npm) then
local message = 'Package "neovim" is out-of-date. Installed: '
.. current_npm:gsub('%\n$', '')
.. ', latest: '
.. latest_npm:gsub('%\n$', '')
health.warn(message, {
'Run in shell: npm install -g neovim',
'Run in shell (if you use yarn): yarn global add neovim',
'Run in shell (if you use pnpm): pnpm install -g neovim',
})
else
health.ok('Latest "neovim" npm/yarn/pnpm package is installed: ' .. current_npm)
end
end
local function perl()
health.start('Perl provider (optional)')
if provider_disabled('perl') then
return
end
local perl_exec, perl_warnings = vim.provider.perl.detect()
if not perl_exec then
health.warn(assert(perl_warnings), {
'See :help provider-perl for more information.',
'You may disable this provider (and warning) by adding `let g:loaded_perl_provider = 0` to your init.vim',
})
health.warn('No usable perl executable found')
return
end
health.info('perl executable: ' .. perl_exec)
-- we cannot use cpanm that is on the path, as it may not be for the perl
-- set with g:perl_host_prog
local ok = cmd_ok({ perl_exec, '-W', '-MApp::cpanminus', '-e', '' })
if not ok then
return { perl_exec, '"App::cpanminus" module is not installed' }
end
local latest_cpan_cmd = {
perl_exec,
'-MApp::cpanminus::fatscript',
'-e',
'my $app = App::cpanminus::script->new; $app->parse_options ("--info", "-q", "Neovim::Ext"); exit $app->doit',
}
local latest_cpan
ok, latest_cpan = cmd_ok(latest_cpan_cmd)
if not ok or latest_cpan:find('^%s*$') then
health.error(
'Failed to run: ' .. table.concat(latest_cpan_cmd, ' '),
{ "Make sure you're connected to the internet.", 'Are you behind a firewall or proxy?' }
)
return
elseif latest_cpan[1] == '!' then
local cpanm_errs = vim.split(latest_cpan, '!')
if cpanm_errs[1]:find("Can't write to ") then
local advice = {} ---@type string[]
for i = 2, #cpanm_errs do
advice[#advice + 1] = cpanm_errs[i]
end
health.warn(cpanm_errs[1], advice)
-- Last line is the package info
latest_cpan = cpanm_errs[#cpanm_errs]
else
health.error('Unknown warning from command: ' .. latest_cpan_cmd, cpanm_errs)
return
end
end
latest_cpan = tostring(vim.fn.matchstr(latest_cpan, [[\(\.\?\d\)\+]]))
if latest_cpan:find('^%s*$') then
health.error('Cannot parse version number from cpanm output: ' .. latest_cpan)
return
end
local current_cpan_cmd = { perl_exec, '-W', '-MNeovim::Ext', '-e', 'print $Neovim::Ext::VERSION' }
local current_cpan
ok, current_cpan = cmd_ok(current_cpan_cmd)
if not ok then
health.error(
'Failed to run: ' .. table.concat(current_cpan_cmd, ' '),
{ 'Report this issue with the output of: ', table.concat(current_cpan_cmd, ' ') }
)
return
end
if vim.version.lt(current_cpan, latest_cpan) then
local message = 'Module "Neovim::Ext" is out-of-date. Installed: '
.. current_cpan
.. ', latest: '
.. latest_cpan
health.warn(message, 'Run in shell: cpanm -n Neovim::Ext')
else
health.ok('Latest "Neovim::Ext" cpan module is installed: ' .. current_cpan)
end
end
local function is(path, ty)
if not path then
return false
end
local stat = vim.uv.fs_stat(path)
if not stat then
return false
end
return stat.type == ty
end
-- Resolves Python executable path by invoking and checking `sys.executable`.
local function python_exepath(invocation)
local p = vim.system({ invocation, '-c', 'import sys; sys.stdout.write(sys.executable)' }):wait()
assert(p.code == 0, p.stderr)
return vim.fs.normalize(vim.trim(p.stdout))
end
--- 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, effectively ignoring pyenv.
---
--- @return [string, string]
local function check_for_pyenv()
local pyenv_path = vim.fn.resolve(vim.fn.exepath('pyenv'))
if pyenv_path == '' then
return { '', '' }
end
health.info('pyenv: Path: ' .. pyenv_path)
local pyenv_root = vim.fn.resolve(os.getenv('PYENV_ROOT') or '')
if pyenv_root == '' then
pyenv_root = vim.fn.system({ pyenv_path, 'root' })
health.info('pyenv: $PYENV_ROOT is not set. Infer from `pyenv root`.')
end
if not is(pyenv_root, 'directory') then
local message = string.format(
'pyenv: Root does not exist: %s. Ignoring pyenv for all following checks.',
pyenv_root
)
health.warn(message)
return { '', '' }
end
health.info('pyenv: Root: ' .. pyenv_root)
return { pyenv_path, pyenv_root }
end
-- Check the Python interpreter's usability.
local function check_bin(bin)
if not is(bin, 'file') and (not iswin or not is(bin .. '.exe', 'file')) then
health.error('"' .. bin .. '" was not found.')
return false
elseif vim.fn.executable(bin) == 0 then
health.error('"' .. bin .. '" is not executable.')
return false
end
return true
end
--- Fetch the contents of a URL.
---
--- @param url string
local function download(url)
local has_curl = vim.fn.executable('curl') == 1
if has_curl and vim.fn.system({ 'curl', '-V' }):find('Protocols:.*https') then
local out, rc = system({ 'curl', '-sL', url }, { stderr = true, ignore_error = true })
if rc ~= 0 then
return 'curl error with ' .. url .. ': ' .. rc
else
return out
end
elseif vim.fn.executable('python') == 1 then
local script = "try:\n\
from urllib.request import urlopen\n\
except ImportError:\n\
from urllib2 import urlopen\n\
response = urlopen('" .. url .. "')\n\
print(response.read().decode('utf8'))\n"
local out, rc = system({ 'python', '-c', script })
if out == '' and rc ~= 0 then
return 'python urllib.request error: ' .. rc
else
return out
end
end
local message = 'missing `curl` '
if has_curl then
message = message .. '(with HTTPS support) '
end
message = message .. 'and `python`, cannot make web request'
return message
end
--- Get the latest Nvim Python client (pynvim) version from PyPI.
local function latest_pypi_version()
local pypi_version = 'unable to get pypi response'
local pypi_response = download('https://pypi.python.org/pypi/pynvim/json')
if pypi_response ~= '' then
local pcall_ok, output = pcall(vim.fn.json_decode, pypi_response)
if not pcall_ok then
return 'error: ' .. pypi_response
end
local pypi_data = output
local pypi_element = pypi_data['info'] or {}
pypi_version = pypi_element['version'] or 'unable to parse'
end
return pypi_version
end
--- @param s string
local function is_bad_response(s)
local lower = s:lower()
return vim.startswith(lower, 'unable')
or vim.startswith(lower, 'error')
or vim.startswith(lower, 'outdated')
end
--- 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.
---
--- @param python string
---
--- Returns: {
--- {python executable version},
--- {current nvim version},
--- {current pypi nvim status},
--- {installed version status}
--- }
local function version_info(python)
local pypi_version = latest_pypi_version()
local python_version, rc = system({
python,
'-c',
'import sys; print(".".join(str(x) for x in sys.version_info[:3]))',
})
if rc ~= 0 or python_version == '' then
python_version = 'unable to parse ' .. python .. ' response'
end
local nvim_path
nvim_path, rc = system({
python,
'-c',
'import sys; sys.path = [p for p in sys.path if p != ""]; import neovim; print(neovim.__file__)',
})
if rc ~= 0 or nvim_path == '' then
return { python_version, 'unable to load neovim Python module', pypi_version, nvim_path }
end
-- Assuming that multiple versions of a package are installed, sort them
-- numerically in descending order.
local function compare(metapath1, metapath2)
local a = vim.fn.matchstr(vim.fn.fnamemodify(metapath1, ':p:h:t'), [[[0-9.]\+]])
local b = vim.fn.matchstr(vim.fn.fnamemodify(metapath2, ':p:h:t'), [[[0-9.]\+]])
if a == b then
return 0
elseif a > b then
return 1
else
return -1
end
end
-- Try to get neovim.VERSION (added in 0.1.11dev).
local nvim_version
nvim_version, rc = system({
python,
'-c',
'from neovim import VERSION as v; print("{}.{}.{}{}".format(v.major, v.minor, v.patch, v.prerelease))',
}, { stderr = true, ignore_error = true })
if rc ~= 0 or nvim_version == '' then
nvim_version = 'unable to find pynvim module version'
local base = vim.fs.basename(nvim_path)
local metas = vim.fn.glob(base .. '-*/METADATA', true, 1)
vim.list_extend(metas, vim.fn.glob(base .. '-*/PKG-INFO', true, 1))
vim.list_extend(metas, vim.fn.glob(base .. '.egg-info/PKG-INFO', true, 1))
metas = table.sort(metas, compare)
if metas and next(metas) ~= nil then
for line in io.lines(metas[1]) do
local version = line:match('^Version: (%S+)')
if version then
nvim_version = version
break
end
end
end
end
local nvim_path_base = vim.fn.fnamemodify(nvim_path, [[:~:h]])
local version_status = 'unknown; ' .. nvim_path_base
if is_bad_response(nvim_version) and is_bad_response(pypi_version) then
if vim.version.lt(nvim_version, pypi_version) then
version_status = 'outdated; from ' .. nvim_path_base
else
version_status = 'up to date'
end
end
return { python_version, nvim_version, pypi_version, version_status }
end
local function python()
health.start('Python 3 provider (optional)')
local python_exe = ''
local virtual_env = os.getenv('VIRTUAL_ENV')
local venv = virtual_env and vim.fn.resolve(virtual_env) or ''
local host_prog_var = 'python3_host_prog'
local python_multiple = {} ---@type string[]
if provider_disabled('python3') then
return
end
local pyenv_table = check_for_pyenv()
local pyenv = pyenv_table[1]
local pyenv_root = pyenv_table[2]
if vim.g[host_prog_var] then
local message = string.format('Using: g:%s = "%s"', host_prog_var, vim.g[host_prog_var])
health.info(message)
end
local pyname, pythonx_warnings = vim.provider.python.detect_by_module('neovim')
if not pyname then
health.warn(
'No Python executable found that can `import neovim`. '
.. 'Using the first available executable for diagnostics.'
)
elseif vim.g[host_prog_var] then
python_exe = pyname
end
-- No Python executable could `import neovim`, or host_prog_var was used.
if pythonx_warnings then
health.warn(pythonx_warnings, {
'See :help provider-python for more information.',
'You may disable this provider (and warning) by adding `let g:loaded_python3_provider = 0` to your init.vim',
})
elseif pyname and pyname ~= '' and python_exe == '' then
if not vim.g[host_prog_var] then
local message = string.format(
'`g:%s` is not set. Searching for %s in the environment.',
host_prog_var,
pyname
)
health.info(message)
end
if pyenv ~= '' then
python_exe = system({ pyenv, 'which', pyname }, { stderr = true })
if python_exe == '' then
health.warn('pyenv could not find ' .. pyname .. '.')
end
end
if python_exe == '' then
python_exe = vim.fn.exepath(pyname)
if os.getenv('PATH') then
local path_sep = iswin and ';' or ':'
local paths = vim.split(os.getenv('PATH') or '', path_sep)
for _, path in ipairs(paths) do
local path_bin = vim.fs.normalize(path .. '/' .. pyname)
if
path_bin ~= vim.fs.normalize(python_exe)
and vim.tbl_contains(python_multiple, path_bin)
and vim.fn.executable(path_bin) == 1
then
python_multiple[#python_multiple + 1] = path_bin
end
end
if vim.tbl_count(python_multiple) > 0 then
-- This is worth noting since the user may install something
-- that changes $PATH, like homebrew.
local message = string.format(
'Multiple %s executables found. Set `g:%s` to avoid surprises.',
pyname,
host_prog_var
)
health.info(message)
end
if python_exe:find('shims') then
local message = string.format('`%s` appears to be a pyenv shim.', python_exe)
local advice = string.format(
'`pyenv` is not in $PATH, your pyenv installation is broken. Set `g:%s` to avoid surprises.',
host_prog_var
)
health.warn(message, advice)
end
end
end
end
if python_exe ~= '' and not vim.g[host_prog_var] then
if
venv == ''
and pyenv ~= ''
and pyenv_root ~= ''
and vim.startswith(vim.fn.resolve(python_exe), pyenv_root .. '/')
then
local advice = string.format(
'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
)
health.warn('pyenv is not set up optimally.', advice)
elseif venv ~= '' then
local venv_root = pyenv_root ~= '' and pyenv_root or vim.fs.dirname(venv)
if vim.startswith(vim.fn.resolve(python_exe), venv_root .. '/') then
local advice = string.format(
'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
)
health.warn('Your virtualenv is not set up optimally.', advice)
end
end
end
if pyname and python_exe == '' and pyname ~= '' then
-- An error message should have already printed.
health.error('`' .. pyname .. '` was not found.')
elseif python_exe ~= '' and not check_bin(python_exe) then
python_exe = ''
end
-- Diagnostic output
health.info('Executable: ' .. (python_exe == '' and 'Not found' or python_exe))
if vim.tbl_count(python_multiple) > 0 then
for _, path_bin in ipairs(python_multiple) do
health.info('Other python executable: ' .. path_bin)
end
end
if python_exe == '' then
-- 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
local pynvim_exe = vim.provider.python.detect_by_module('pynvim')
if pynvim_exe then
local message = 'Detected pip upgrade failure: Python executable can import "pynvim" but not "neovim": '
.. pynvim_exe
local advice = {
'Use that Python version to reinstall "pynvim" and optionally "neovim".',
pynvim_exe .. ' -m pip uninstall pynvim neovim',
pynvim_exe .. ' -m pip install pynvim',
pynvim_exe .. ' -m pip install neovim # only if needed by third-party software',
}
health.error(message, advice)
end
else
local version_info_table = version_info(python_exe)
local pyversion = version_info_table[1]
local current = version_info_table[2]
local latest = version_info_table[3]
local status = version_info_table[4]
if not vim.version.range('~3'):has(pyversion) then
health.warn('Unexpected Python version. This could lead to confusing error messages.')
end
health.info('Python version: ' .. pyversion)
if is_bad_response(status) then
health.info('pynvim version: ' .. current .. ' (' .. status .. ')')
else
health.info('pynvim version: ' .. current)
end
if is_bad_response(current) then
health.error(
'pynvim is not installed.\nError: ' .. current,
'Run in shell: ' .. python_exe .. ' -m pip install pynvim'
)
end
if is_bad_response(latest) then
health.warn('Could not contact PyPI to get latest version.')
health.error('HTTP request failed: ' .. latest)
elseif is_bad_response(status) then
health.warn('Latest pynvim is NOT installed: ' .. latest)
elseif not is_bad_response(current) then
health.ok('Latest pynvim is installed.')
end
end
health.start('Python virtualenv')
if not virtual_env then
health.ok('no $VIRTUAL_ENV')
return
end
local errors = {} ---@type string[]
-- Keep hints as dict keys in order to discard duplicates.
local hints = {} ---@type table<string, boolean>
-- The virtualenv should contain some Python executables, and those
-- executables should be first both on Nvim's $PATH and the $PATH of
-- subshells launched from Nvim.
local bin_dir = iswin and 'Scripts' or 'bin'
local venv_bins = vim.fn.glob(string.format('%s/%s/python*', virtual_env, bin_dir), true, true)
venv_bins = vim.tbl_filter(function(v)
-- XXX: Remove irrelevant executables found in bin/.
return not v:match('python%-config')
end, venv_bins)
if vim.tbl_count(venv_bins) > 0 then
for _, venv_bin in pairs(venv_bins) do
venv_bin = vim.fs.normalize(venv_bin)
local py_bin_basename = vim.fs.basename(venv_bin)
local nvim_py_bin = python_exepath(vim.fn.exepath(py_bin_basename))
local subshell_py_bin = python_exepath(py_bin_basename)
if venv_bin ~= nvim_py_bin then
errors[#errors + 1] = '$PATH yields this '
.. py_bin_basename
.. ' executable: '
.. nvim_py_bin
local hint = '$PATH ambiguities arise if the virtualenv is not '
.. 'properly activated prior to launching Nvim. Close Nvim, activate the virtualenv, '
.. 'check that invoking Python from the command line launches the correct one, '
.. 'then relaunch Nvim.'
hints[hint] = true
end
if venv_bin ~= subshell_py_bin then
errors[#errors + 1] = '$PATH in subshells yields this '
.. py_bin_basename
.. ' executable: '
.. subshell_py_bin
local hint = '$PATH ambiguities in subshells typically are '
.. 'caused by your shell config overriding the $PATH previously set by the '
.. 'virtualenv. Either prevent them from doing so, or use this workaround: '
.. 'https://vi.stackexchange.com/a/34996'
hints[hint] = true
end
end
else
errors[#errors + 1] = 'no Python executables found in the virtualenv '
.. bin_dir
.. ' directory.'
end
local msg = '$VIRTUAL_ENV is set to: ' .. virtual_env
if vim.tbl_count(errors) > 0 then
if vim.tbl_count(venv_bins) > 0 then
msg = string.format(
'%s\nAnd its %s directory contains: %s',
msg,
bin_dir,
table.concat(
vim.tbl_map(function(v)
return vim.fs.basename(v)
end, venv_bins),
', '
)
)
end
local conj = '\nBut '
for _, err in ipairs(errors) do
msg = msg .. conj .. err
conj = '\nAnd '
end
msg = msg .. '\nSo invoking Python may lead to unexpected results.'
health.warn(msg, vim.tbl_keys(hints))
else
health.info(msg)
health.info(
'Python version: '
.. system('python -c "import platform, sys; sys.stdout.write(platform.python_version())"')
)
health.ok('$VIRTUAL_ENV provides :!python.')
end
end
local function ruby()
health.start('Ruby provider (optional)')
if provider_disabled('ruby') then
return
end
if vim.fn.executable('ruby') == 0 or vim.fn.executable('gem') == 0 then
health.warn(
'`ruby` and `gem` must be in $PATH.',
'Install Ruby and verify that `ruby` and `gem` commands work.'
)
return
end
health.info('Ruby: ' .. system({ 'ruby', '-v' }))
local host, _ = vim.provider.ruby.detect()
if (not host) or host:find('^%s*$') then
health.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 $PATH.',
'If you are using rvm/rbenv/chruby, try "rehashing".',
'See :help g:ruby_host_prog for non-standard gem installations.',
'You may disable this provider (and warning) by adding `let g:loaded_ruby_provider = 0` to your init.vim',
})
return
end
health.info('Host: ' .. host)
local latest_gem_cmd = (iswin and 'cmd /c gem list -ra "^^neovim$"' or 'gem list -ra ^neovim$')
local ok, latest_gem = cmd_ok(vim.split(latest_gem_cmd, ' '))
if not ok or latest_gem:find('^%s*$') then
health.error(
'Failed to run: ' .. latest_gem_cmd,
{ "Make sure you're connected to the internet.", 'Are you behind a firewall or proxy?' }
)
return
end
local gem_split = vim.split(latest_gem, [[neovim (\|, \|)$]])
latest_gem = gem_split[1] or 'not found'
local current_gem_cmd = { host, '--version' }
local current_gem
ok, current_gem = cmd_ok(current_gem_cmd)
if not ok then
health.error(
'Failed to run: ' .. table.concat(current_gem_cmd, ' '),
{ 'Report this issue with the output of: ', table.concat(current_gem_cmd, ' ') }
)
return
end
if vim.version.lt(current_gem, latest_gem) then
local message = 'Gem "neovim" is out-of-date. Installed: '
.. current_gem
.. ', latest: '
.. latest_gem
health.warn(message, 'Run in shell: gem update neovim')
else
health.ok('Latest "neovim" gem is installed: ' .. current_gem)
end
end
function M.check()
clipboard()
node()
perl()
python()
ruby()
end
return M