add support for zx install scripts (#13)

1 files changed, 38 insertions, 0 deletions

diff --git a/lua/nvim-lsp-installer/path.lua b/lua/nvim-lsp-installer/path.lua
new file mode 100644
index 00000000..294d45e5
--- /dev/null
+++ b/lua/nvim-lsp-installer/path.lua
@@ -0,0 +1,38 @@
+local uv = vim.loop
+
+local sep = (function()
+---@diagnostic disable-next-line: undefined-global
+  if jit then
+---@diagnostic disable-next-line: undefined-global
+    local os = string.lower(jit.os)
+    if os == "linux" or os == "osx" or os == "bsd" then
+      return "/"
+    else
+      return "\\"
+    end
+  else
+    return package.config:sub(1, 1)
+  end
+end)()
+
+local M = {}
+
+function M.cwd()
+    return uv.fs_realpath(".")
+end
+
+function M.concat(path_components)
+    return table.concat(path_components, sep)
+end
+
+-- @param relpath string The relative path to get the realpath(1) to.
+-- @param depth number The depth in the call stack to introspect. This effectively controls which stack frame should be used when producing the realpath.
+--                     The file of the elected stack frame will be used as the "starting point" for the provided relpath.
+--
+-- @return The realpath (absolute path). Note that this will currently produce results such as /Users/zuck/./script.js which may not be compatible with some tools.
+function M.realpath(relpath, depth)
+    local callsite_abs_path = debug.getinfo(depth or 2, "S").source:sub(2)
+    return M.concat { vim.fn.fnamemodify(callsite_abs_path, ":h"), relpath }
+end
+
+return M