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local fn = vim.fn
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
--- @feat: string
--- the feature name, like `nvim-0.7` or `unix`.
--- return: bool
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
function M.get_nvim_version()
local actual_ver = vim.version()
local nvim_ver_str = string.format("%d.%d.%d", actual_ver.major, actual_ver.minor, actual_ver.patch)
return nvim_ver_str
end
--- Generate random integers in the range [Low, High], inclusive,
--- adapted from https://stackoverflow.com/a/12739441/6064933
--- @low: the lower value for this range
--- @high: the upper value for this range
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.
--- @seq: the sequence to choose an element
function M.rand_element(seq)
local idx = M.rand_int(1, #seq)
return seq[idx]
end
function M.add_pack(name)
local status, error = pcall(vim.cmd, "packadd " .. name)
return status
end
return M
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