A refusal's +Unsaved goes in the session's directory when the active pane's directory is not there

Exit or Restore refused over a pane named into a directory that does
not exist made +Unsaved in that missing directory, where its rows
could not be looked at and a Save of it could only fail. The list now
goes in the session's directory when the asking pane's is not on disk.

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

2 files changed, 20 insertions, 1 deletions

diff --git a/src/Output.zig b/src/Output.zig
index 4aa0c021..1160c455 100644
--- a/src/Output.zig
+++ b/src/Output.zig
@@ -656,7 +656,10 @@ pub fn openUnsaved(p: *Pardes, id: usize, content: []u8) void {
         return;
     }
     const pane = p.panes[id] orelse return p.gpa.free(content);
-    const dir = if (pane.file) |f| (std.fs.path.dirname(f.path) orelse "/") else pane.cwdSlice();
+    const own = if (pane.file) |f| (std.fs.path.dirname(f.path) orelse "/") else pane.cwdSlice();
+    // Its directory gone (or never there, a name not yet saved): the list
+    // goes in the session's, where a look from it can still resolve.
+    const dir = if (comptime pardes.hosted) (if (pardes.filesystem.localPath(own)) |local| (if (exec.isDirectory(local)) own else p.sessionDir()) else own) else own;
     const free = p.freeSlot() orelse return p.gpa.free(content);
     _ = open(p, free, dir, .unsaved, "", content) catch return;
     exec.placeNew(p, id, id, free, .doc);
diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index f8391672..e0c4b21b 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -1777,6 +1777,22 @@ test "exec Save writes the named file through the host" {
     try testing.expectEqualStrings(pane.file.?.content, p.fallback.get("/tmp/renamed.txt").?);
 }
 
+test "a refusal's +Unsaved goes in the session's directory when the active pane's directory is not there" {
+    if (comptime !pardes.hosted) return;
+    const p = try withFile(testing.allocator, "x\n");
+    defer p.deinit();
+    const serial = serialOf(p);
+    try testing.expectEqual(Status.ok, wr(p, Node.of(serial, .name), "/tmp/pardes-no-such-dir-zz/x.txt\n").reply.status);
+    try testing.expectEqual(Status.ok, wr(p, Node.of(serial, .body), "edited\n").reply.status);
+    try testing.expectEqual(Status.err, wr(p, @intFromEnum(tree.TopFile.ctl), "Exit\n").reply.status);
+    const unsaved = for (p.panes) |slot| {
+        const pane = slot orelse continue;
+        const f = pane.file orelse continue;
+        if (f.output) |o| if (o.from == .unsaved) break f.path;
+    } else return error.NoUnsavedPane;
+    try testing.expectEqualStrings(p.sessionDir(), std.fs.path.dirname(unsaved).?);
+}
+
 test "a look at a file it may not read fails the write naming the file" {
     if (comptime !pardes.hosted) return;
     const p = try withFile(testing.allocator, "x\n");