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init.lua
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init.lua
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local _ = require "mason-core.functional"
local settings = require "mason.settings"
local process = require "mason-core.process"
local path = require "mason-core.path"
local platform = require "mason-core.platform"
local Optional = require "mason-core.optional"
local installer = require "mason-core.installer"
local Result = require "mason-core.result"
local spawn = require "mason-core.spawn"
local VENV_DIR = "venv"
local M = {}
local create_bin_path = _.compose(path.concat, function(executable)
return _.append(executable, { VENV_DIR, platform.is_win and "Scripts" or "bin" })
end, _.if_else(_.always(platform.is.win), _.format "%s.exe", _.identity))
---@param packages string[]
local function with_receipt(packages)
return function()
local ctx = installer.context()
ctx.receipt:with_primary_source(ctx.receipt.pip3(packages[1]))
for i = 2, #packages do
ctx.receipt:with_secondary_source(ctx.receipt.pip3(packages[i]))
end
end
end
---@async
---@param packages { [number]: string, bin: string[] | nil }: The pip packages to install. The first item in this list will be the recipient of the requested version, if set.
function M.packages(packages)
return function()
return M.install(packages).with_receipt()
end
end
---@async
---@param packages { [number]: string, bin: string[] | nil }: The pip packages to install. The first item in this list will be the recipient of the requested version, if set.
function M.install(packages)
local ctx = installer.context()
local pkgs = _.list_copy(packages)
ctx.requested_version:if_present(function(version)
pkgs[1] = ("%s==%s"):format(pkgs[1], version)
end)
local executables = platform.is_win and _.list_not_nil(vim.g.python3_host_prog, "python", "python3")
or _.list_not_nil(vim.g.python3_host_prog, "python3", "python")
-- pip3 will hardcode the full path to venv executables, so we need to promote cwd to make sure pip uses the final destination path.
ctx:promote_cwd()
-- Find first executable that manages to create venv
local executable = _.find_first(function(executable)
return pcall(ctx.spawn[executable], { "-m", "venv", VENV_DIR })
end, executables)
Optional.of_nilable(executable)
:if_present(function()
ctx.spawn.python {
"-m",
"pip",
"--disable-pip-version-check",
"install",
"-U",
settings.current.pip.install_args,
pkgs,
with_paths = { M.venv_path(ctx.cwd:get()) },
}
end)
:or_else_throw "Unable to create python3 venv environment."
if packages.bin then
_.each(function(bin)
ctx:link_bin(bin, create_bin_path(bin))
end, packages.bin)
end
return {
with_receipt = with_receipt(packages),
}
end
---@param pkg string
---@return string
function M.normalize_package(pkg)
-- https://stackoverflow.com/a/60307740
local s = pkg:gsub("%[.*%]", "")
return s
end
---@async
---@param receipt InstallReceipt
---@param install_dir string
function M.check_outdated_primary_package(receipt, install_dir)
if receipt.primary_source.type ~= "pip3" then
return Result.failure "Receipt does not have a primary source of type pip3"
end
local normalized_package = M.normalize_package(receipt.primary_source.package)
return spawn
.python({
"-m",
"pip",
"list",
"--outdated",
"--format=json",
cwd = install_dir,
with_paths = { M.venv_path(install_dir) },
})
:map_catching(function(result)
---@alias PipOutdatedPackage {name: string, version: string, latest_version: string}
---@type PipOutdatedPackage[]
local packages = vim.json.decode(result.stdout)
local outdated_primary_package = _.find_first(function(outdated_package)
return outdated_package.name == normalized_package
and outdated_package.version ~= outdated_package.latest_version
end, packages)
return Optional.of_nilable(outdated_primary_package)
:map(function(pkg)
return {
name = normalized_package,
current_version = assert(pkg.version),
latest_version = assert(pkg.latest_version),
}
end)
:or_else_throw "Primary package is not outdated."
end)
end
---@async
---@param receipt InstallReceipt
---@param install_dir string
function M.get_installed_primary_package_version(receipt, install_dir)
if receipt.primary_source.type ~= "pip3" then
return Result.failure "Receipt does not have a primary source of type pip3"
end
return spawn
.python({
"-m",
"pip",
"list",
"--format=json",
cwd = install_dir,
with_paths = { M.venv_path(install_dir) },
})
:map_catching(function(result)
local pip_packages = vim.json.decode(result.stdout)
local normalized_pip_package = M.normalize_package(receipt.primary_source.package)
local pip_package = _.find_first(function(pkg)
return pkg.name == normalized_pip_package
end, pip_packages)
return Optional.of_nilable(pip_package)
:map(function(pkg)
return pkg.version
end)
:or_else_throw "Unable to find pip package."
end)
end
---@param install_dir string
function M.env(install_dir)
return {
PATH = process.extend_path { M.venv_path(install_dir) },
}
end
---@param install_dir string
function M.venv_path(install_dir)
return path.concat { install_dir, VENV_DIR, platform.is_win and "Scripts" or "bin" }
end
return M