Merge pull request #33 from nyarla/add-lib.os

feat(lib.os): add manupilate library for the runtime os of nvim

Author: nyarla

lua/lib/os.lua

@@ -0,0 +1,24 @@
+local M = {}
+
+---@return string the os name about nvim running on
+function M.detect_os()
+  if vim.fn.filereadable("/etc/NIXOS") == 1 then
+    return "nixos"
+  end
+
+  if vim.fn.executable("sw_vers") == 1 then
+    return "macos"
+  end
+
+  if vim.fn.executable("explorer.exe") == 1 then
+    return "windows"
+  end
+
+  if vim.fn.system("uname -s") == "Linux\n" then
+    return "linux"
+  end
+
+  return "unsupported"
+end
+
+return M

spec/lib/os_spec.lua

@@ -0,0 +1,7 @@
+local lib = require("lib.os")
+
+describe("lib", function()
+  it("os#detect_os", function()
+    assert.are.same(lib.detect_os(), "linux")
+  end)
+end)