fixes macos tmp drive issue by forcing symlink resolution

Author: ityonemo

lib/zig.ex

@@ -738,6 +738,55 @@ defmodule Zig do
         true
     end
   end
+
+  @doc false
+  # Returns the system temporary directory with all symlinks resolved.
+  # On macOS, /tmp and /var are symlinks to /private/tmp and /private/var,
+  # which can cause issues with relative path resolution in Zig's build system.
+  def _tmp_dir do
+    tmp = System.tmp_dir()
+    # Remove trailing slash to normalize the path
+    tmp = String.trim_trailing(tmp, "/")
+    resolve_symlinks(tmp)
+  end
+
+  # Recursively resolve all symlinks in a path by checking each component
+  defp resolve_symlinks(path) do
+    # Split the path into components
+    parts = Path.split(path)
+
+    # Rebuild the path, resolving symlinks at each level
+    {resolved, _} =
+      Enum.reduce(parts, {"", ""}, fn part, {current_path, _} ->
+        next_path =
+          if current_path == "" do
+            part
+          else
+            Path.join(current_path, part)
+          end
+
+        # Check if this component is a symlink
+        case File.read_link(next_path) do
+          {:ok, link_target} ->
+            # If the link target is absolute, use it directly
+            # Otherwise, resolve it relative to the current directory
+            resolved_path =
+              if String.starts_with?(link_target, "/") do
+                link_target
+              else
+                Path.join(Path.dirname(next_path), link_target)
+              end
+
+            {resolved_path, ""}
+
+          {:error, _} ->
+            # Not a symlink, continue with the current path
+            {next_path, ""}
+        end
+      end)
+
+    resolved
+  end
 end
 
 # check that the otp_version is 24 or greater.

lib/zig/builder.ex

@@ -32,7 +32,7 @@ after
   def staging_directory(module) do
     staging_root =
       case System.get_env("ZIGLER_STAGING_ROOT", "") do
-        "" -> System.tmp_dir()
+        "" -> Zig._tmp_dir()
         path -> path
       end
 
@@ -121,7 +121,7 @@ after
       # The staging root should already exist - we only create the module-specific subdirectory
       staging_root =
         case System.get_env("ZIGLER_STAGING_ROOT", "") do
-          "" -> System.tmp_dir()
+          "" -> Zig._tmp_dir()
           path -> path
         end
 

lib/zig/compiler.ex

@@ -218,7 +218,7 @@ defmodule Zig.Compiler do
   ## STEPS
 
   def assembly_dir(env, module) do
-    System.tmp_dir()
+    Zig._tmp_dir()
     |> String.replace("\\", "/")
     |> Path.join(".zigler_compiler/#{env}/#{module}")
   end

lib/zig/sema.ex

@@ -664,7 +664,7 @@ defmodule Zig.Sema do
           16
           |> :crypto.strong_rand_bytes()
           |> Base.encode16(case: :lower)
-          |> then(&Path.join(System.tmp_dir!(), &1))
+          |> then(&Path.join(Zig._tmp_dir(), &1))
 
         File.touch!(tmp_path)
 
@@ -692,7 +692,7 @@ defmodule Zig.Sema do
           16
           |> :crypto.strong_rand_bytes()
           |> Base.encode16(case: :lower)
-          |> then(&Path.join(System.tmp_dir!(), &1))
+          |> then(&Path.join(Zig._tmp_dir(), &1))
 
         case System.cmd("objcopy", ["--dump-section", ".sema=#{tmp_path}", file]) do
           {_, 0} ->

mix.lock

@@ -9,6 +9,7 @@
   "nimble_parsec": {:hex, :nimble_parsec, "1.4.2", "8efba0122db06df95bfaa78f791344a89352ba04baedd3849593bfce4d0dc1c6", [:mix], [], "hexpm", "4b21398942dda052b403bbe1da991ccd03a053668d147d53fb8c4e0efe09c973"},
   "pegasus": {:hex, :pegasus, "0.2.6", "b4af6522326fbb2ffd1bb706e78ec05854fbcb4b03a7fe08f8db2e9de1d0be67", [:mix], [{:nimble_parsec, "~> 1.2", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "0ac159f0ccab7967cf90208327cc8a35788874814c8d78e19d47104d3fc049b9"},
   "protoss": {:hex, :protoss, "1.1.0", "853533313989751c7da5b0e1ce71501a23f3dc41f128709478af40daccc6e959", [:mix], [], "hexpm", "c2f874383dd047fcfdf467b814dd33a208a4d24a467aef90d86185b41a0752ad"},
+  "zexplorer": {:git, "https://github.com/ndrean/zexplorer", "39ccd2087657eb50dffce703007bb6a1a4988dc2", []},
   "zig_doc": {:hex, :zig_doc, "0.5.0", "2bd2e70190b3c2cdbe7f0b0172a3d2d776cf92096b5f51b8f9131d15ccc9eeeb", [:mix], [{:ex_doc, "~> 0.34.2", [hex: :ex_doc, repo: "hexpm", optional: false]}, {:zig_parser, "~> 0.5", [hex: :zig_parser, repo: "hexpm", optional: false]}], "hexpm", "c4769bcc4d7d18cb4bfbff238100e80b9e514021f5dd818645cfe7ff2ea405c0"},
   "zig_get": {:hex, :zig_get, "0.15.2", "a6ccaa894213839ba95615bf9be2b2c9268e37ab9547a2344830202cfd6d7cc0", [:mix], [], "hexpm", "e6b0028f2d5a8da791ff8037deff5b492784017d8d241e598377a24bd765f56f"},
   "zig_parser": {:hex, :zig_parser, "0.6.0", "b1296c64bf5c2592de2eb4bc8bbf79d85b1d6a3ab444c443becd7af579d85681", [:mix], [{:pegasus, "~> 0.2.4", [hex: :pegasus, repo: "hexpm", optional: false]}], "hexpm", "bb7a1523b69f7f8f6b74ba5bf9dabc83f512c0cd67d9eebba1c501a529a2f95e"},