From d54812ea2bb73fdded1074dc19a11dcf0b4de73f Mon Sep 17 00:00:00 2001
From: Siraaj Khandkar <siraaj@khandkar.net>
Date: Fri, 26 Nov 2021 14:44:57 -0500
Subject: [PATCH] Save last download error as peer comment

---
 info.rkt |  2 +-
 tt.rkt   | 20 ++++++++++++--------
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/info.rkt b/info.rkt
index 80282c2..22c222b 100644
--- a/info.rkt
+++ b/info.rkt
@@ -6,7 +6,7 @@
 (define pkg-desc
   "twtxt client")
 (define version
-  "0.24.0")
+  "0.25.0")
 (define pkg-authors
   '("Siraaj Khandkar <siraaj@khandkar.net>"))
 (define deps
diff --git a/tt.rkt b/tt.rkt
index ec46623..5b10215 100644
--- a/tt.rkt
+++ b/tt.rkt
@@ -591,15 +591,19 @@
     (concurrent-filter-map num-workers
                            (λ (p) (cons p (peer-download timeout p)))
                            peers))
-  (define ok? (match-lambda
-                [(cons _ (cons 'ok _)) #t]
-                [(cons _ (cons 'error _)) #f]))
-  (define (err? r) (not (ok? r)))
-  (define peers-ok (map car (filter ok? results)))
-  (define peers-err (map car (filter err? results)))
+  (define peers-ok
+    (filter-map (match-lambda
+                  [(cons p (cons 'ok _)) p]
+                  [(cons _ (cons 'error e)) #f])
+                results))
+  (define peers-err
+    (filter-map (match-lambda
+                  [(cons _ (cons 'ok _))
+                   #f]
+                  [(cons p (cons 'error e))
+                   (struct-copy Peer p [comment (format "~s" e)])])
+                results))
   (peers->file peers-ok (build-path tt-home-dir "peers-last-downloaded-ok"))
-  ; TODO Append error as a comment: <nick> <uri> # <error>
-  ; TODO Support inline/trailing comments in peer files
   (peers->file peers-err (build-path tt-home-dir "peers-last-downloaded-err")))
 
 (: uniq (∀ (α) (-> (Listof α) (Listof α))))
-- 
2.20.1