mirror of
https://github.com/jdhao/nvim-config.git
synced 2025-06-08 14:14:33 +02:00
83 lines
2.0 KiB
Lua
83 lines
2.0 KiB
Lua
local fn = vim.fn
|
|
local version = vim.version
|
|
|
|
local M = {}
|
|
|
|
function M.executable(name)
|
|
if fn.executable(name) > 0 then
|
|
return true
|
|
end
|
|
|
|
return false
|
|
end
|
|
|
|
--- check whether a feature exists in Nvim
|
|
--- @param feat string the feature name, like `nvim-0.7` or `unix`.
|
|
--- @return boolean
|
|
M.has = function(feat)
|
|
if fn.has(feat) == 1 then
|
|
return true
|
|
end
|
|
|
|
return false
|
|
end
|
|
|
|
--- Create a dir if it does not exist
|
|
function M.may_create_dir(dir)
|
|
local res = fn.isdirectory(dir)
|
|
|
|
if res == 0 then
|
|
fn.mkdir(dir, "p")
|
|
end
|
|
end
|
|
|
|
--- Generate random integers in the range [Low, High], inclusive,
|
|
--- adapted from https://stackoverflow.com/a/12739441/6064933
|
|
--- @param low integer the lower value for this range
|
|
--- @param high integer the upper value for this range
|
|
--- @return integer
|
|
function M.rand_int(low, high)
|
|
-- Use lua to generate random int, see also: https://stackoverflow.com/a/20157671/6064933
|
|
math.randomseed(os.time())
|
|
|
|
return math.random(low, high)
|
|
end
|
|
|
|
--- Select a random element from a sequence/list.
|
|
--- @param seq any[] the sequence to choose an element
|
|
function M.rand_element(seq)
|
|
local idx = M.rand_int(1, #seq)
|
|
|
|
return seq[idx]
|
|
end
|
|
|
|
--- check if the current nvim version is compatible with the allowed version
|
|
--- @param expected_version string
|
|
--- @return boolean
|
|
function M.is_compatible_version(expected_version)
|
|
-- check if we have the latest stable version of nvim
|
|
local expect_ver = version.parse(expected_version)
|
|
local actual_ver = vim.version()
|
|
|
|
if expect_ver == nil then
|
|
local msg = string.format("Unsupported version string: %s", expected_version)
|
|
vim.api.nvim_err_writeln(msg)
|
|
return false
|
|
end
|
|
|
|
local result = version.cmp(expect_ver, actual_ver)
|
|
if result ~= 0 then
|
|
local _ver = string.format("%s.%s.%s", actual_ver.major, actual_ver.minor, actual_ver.patch)
|
|
local msg = string.format(
|
|
"Expect nvim version %s, but your current nvim version is %s. Use at your own risk!",
|
|
expected_version,
|
|
_ver
|
|
)
|
|
vim.api.nvim_err_writeln(msg)
|
|
end
|
|
|
|
return true
|
|
end
|
|
|
|
return M
|