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local path = require "nvim-lsp-installer.path"
local Data = require "nvim-lsp-installer.data"
local installers = require "nvim-lsp-installer.installers"
local std = require "nvim-lsp-installer.installers.std"
local platform = require "nvim-lsp-installer.platform"
local process = require "nvim-lsp-installer.process"
local settings = require "nvim-lsp-installer.settings"
local context = require "nvim-lsp-installer.installers.context"
local log = require "nvim-lsp-installer.log"
local M = {}
local REL_INSTALL_DIR = "venv"
---@param python_executable string
---@param packages string[]
local function create_installer(python_executable, packages)
return installers.pipe {
std.ensure_executables {
{
python_executable,
("%s was not found in path. Refer to https://www.python.org/downloads/."):format(python_executable),
},
},
---@type ServerInstallerFunction
function(_, callback, ctx)
local pkgs = Data.list_copy(packages or {})
local c = process.chain {
cwd = ctx.install_dir,
stdio_sink = ctx.stdio_sink,
env = process.graft_env(M.env(ctx.install_dir)),
}
c.run(python_executable, { "-m", "venv", REL_INSTALL_DIR })
if ctx.requested_server_version then
-- The "head" package is the recipient for the requested version. It's.. by design... don't ask.
pkgs[1] = ("%s==%s"):format(pkgs[1], ctx.requested_server_version)
end
local install_command = { "-m", "pip", "install", "-U" }
vim.list_extend(install_command, settings.current.pip.install_args)
c.run("python", vim.list_extend(install_command, pkgs))
c.spawn(callback)
end,
}
end
---@param packages string[] @The pip packages to install. The first item in this list will be the recipient of the server version, should the user request a specific one.
function M.packages(packages)
local py3 = create_installer("python3", packages)
local py = create_installer("python", packages)
-- see https://github.com/williamboman/nvim-lsp-installer/issues/128
local installer_variants = platform.is_win and { py, py3 } or { py3, py }
local py3_host_prog = vim.g.python3_host_prog
if py3_host_prog then
log.fmt_trace("Found python3_host_prog (%s)", py3_host_prog)
table.insert(installer_variants, 1, create_installer(py3_host_prog, packages))
end
return installers.pipe {
context.promote_install_dir(),
installers.first_successful(installer_variants),
}
end
---@param root_dir string @The directory to resolve the executable from.
function M.env(root_dir)
return {
PATH = process.extend_path {
path.concat { root_dir, REL_INSTALL_DIR, platform.is_win and "Scripts" or "bin" },
},
}
end
return M
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