Recent goes on across a Restore, and is kept after it

A Restore makes a new session, which never loaded the kept list, and saveRecent gives up until it has: Recent was empty after a Restore and nothing opened afterwards was kept. The new session now takes the old one's list (a boot from a dump reads the kept file).

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

1 files changed, 17 insertions, 0 deletions

diff --git a/src/recent.zig b/src/recent.zig
index 91c0afeb..112cb59f 100644
--- a/src/recent.zig
+++ b/src/recent.zig
@@ -83,6 +83,23 @@ pub const List = struct {
         l.dirty = true;
     }
 
+    /// A copy, for the session a Restore makes: its files closed until it
+    /// opens them again. Out of memory, what was copied so far.
+    pub fn clone(l: *const List, gpa: std.mem.Allocator) List {
+        var copy: List = .{ .dirty = true };
+        for (l.entries.items) |e| {
+            const path = gpa.dupe(u8, e.path) catch break;
+            var kept = e;
+            kept.path = path;
+            kept.open = false;
+            copy.entries.append(gpa, kept) catch {
+                gpa.free(path);
+                break;
+            };
+        }
+        return copy;
+    }
+
     pub fn get(l: *const List, path: []const u8) ?Entry {
         return l.entries.items[l.find(path) orelse return null];
     }