87 lines
2.3 KiB
Lua
87 lines
2.3 KiB
Lua
--[[
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Copyright 2023 Oscar Wallberg
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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]]
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M = {}
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M.os_name = vim.loop.os_uname().sysname
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function M.has_value(tab, val)
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for _, value in ipairs(tab) do if value == val then return true end end
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return false
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end
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---@param cmd table: Array of executable + args
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function M.exec(cmd)
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local out = vim.fn.system(cmd)
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local rc = vim.v.shell_error
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return { out = out, rc = rc }
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end
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function M.get_color(group, attr)
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return vim.fn.synIDattr(vim.fn.synIDtrans(vim.fn.hlID(group)), attr)
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end
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function M.get_hl(name)
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local ok, hl = pcall(vim.api.nvim_get_hl_by_name, name, true)
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if not ok then return end
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for _, key in pairs({ 'foreground', 'background', 'special' }) do
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if hl[key] then hl[key] = string.format('#%06x', hl[key]) end
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end
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return hl
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end
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--- Check that an executable is available
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--- @param exe string: Array to look for
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--- @return boolean
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function M.is_available(exe)
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return vim.fn.executable(exe) == 1
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end
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--- Check that at least one executable is available
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--- @param exes table: Array of exes
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--- @return boolean
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function M.any_available(exes)
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for _, e in ipairs(exes) do
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if M.is_available(e) then
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return true
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end
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end
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return false
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end
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--- Asserts that an executable is available
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--- Raises error if missing.
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--- @param exe string: Array to look for
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function M.assert_available(exe)
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if not M.is_available(exe) then
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error("Missing executable '" .. exe .. "'.")
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end
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end
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--- Asserts that at least one executable is available
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--- Raises error if missing.
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--- @param exes table: Array of exes
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function M.assert_any_available(exes)
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if not M.any_available(exes) then
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error('At least one of the following is required:\n' .. table.concat(exes, ', '))
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end
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end
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return M
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