59 lines
1.2 KiB
Lua
59 lines
1.2 KiB
Lua
local fn = vim.fn
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local M = {}
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function M.executable(name)
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if fn.executable(name) > 0 then
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return true
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end
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return false
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end
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--- check whether a feature exists in Nvim
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--- @feat: string
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--- the feature name, like `nvim-0.7` or `unix`.
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--- return: bool
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M.has = function(feat)
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if fn.has(feat) == 1 then
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return true
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end
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return false
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end
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--- Create a dir if it does not exist
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function M.may_create_dir(dir)
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local res = fn.isdirectory(dir)
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if res == 0 then
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fn.mkdir(dir, "p")
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end
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end
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--- Generate random integers in the range [Low, High], inclusive,
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--- adapted from https://stackoverflow.com/a/12739441/6064933
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--- @low: the lower value for this range
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--- @high: the upper value for this range
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function M.rand_int(low, high)
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-- Use lua to generate random int, see also: https://stackoverflow.com/a/20157671/6064933
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math.randomseed(os.time())
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return math.random(low, high)
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end
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--- Select a random element from a sequence/list.
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--- @seq: the sequence to choose an element
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function M.rand_element(seq)
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local idx = M.rand_int(1, #seq)
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return seq[idx]
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end
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function M.add_pack(name)
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local status, error = pcall(vim.cmd, "packadd " .. name)
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return status
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end
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return M
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