A Dump into a DumpDir that is no directory says so; the doc says a missing last directory is made

DumpDir /dev/null said no such directory though it is there, and the doc claimed a missing DumpDir always fails, where its last component is made at the Dump.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 8 insertions, 4 deletions

diff --git a/src/pardes.zig b/src/pardes.zig
index 2bf594c4..f6032ac5 100644
--- a/src/pardes.zig
+++ b/src/pardes.zig
@@ -5425,11 +5425,15 @@ pub const Pardes = struct {
     pub fn dumpFailed(p: *Pardes, path: []const u8, err: anyerror) void {
         var what: [limits.host_path_cap + 8]u8 = undefined;
         const operation = std.fmt.bufPrint(&what, "Dump {s}", .{path}) catch "Dump";
-        // Into a DumpDir that is not there: said so, ENOENT, as a Save is.
+        // Into a DumpDir that is not there: said so, ENOENT, as a Save is;
+        // one that is there but no directory (`/dev/null`) says that.
         const parent = std.fs.path.dirname(path) orelse "/";
-        const no_dir = err == error.FileNotFound or err == error.NotDir or
-            (if (comptime hosted) (if (filesystem.localPath(parent)) |local| !exec.isDirectory(local) else false) else false);
-        if (no_dir) {
+        const kind: ?std.Io.File.Kind = if (comptime hosted) (if (filesystem.localPath(parent)) |local| exec.kindOf(local) else .directory) else .directory;
+        const no_dir = err == error.FileNotFound or err == error.NotDir or kind != .directory;
+        if (kind != null and kind != .directory) {
+            var said: [limits.host_path_cap + 48]u8 = undefined;
+            p.reportFailure(p.active, std.fmt.bufPrint(&said, "{s}: {s} is not a directory", .{ operation, parent }) catch "Dump: not a directory");
+        } else if (no_dir) {
             var said: [limits.host_path_cap + 48]u8 = undefined;
             p.reportFailure(p.active, std.fmt.bufPrint(&said, "{s}: no such directory", .{operation}) catch "Dump: no such directory");
         } else p.reportError(p.active, operation, err);