From b077f0d1170ea5eb76161f1da405a20c9ab556a5 Mon Sep 17 00:00:00 2001
From: Steven Allen <steven@stebalien.com>
Date: Sat, 7 Mar 2026 16:21:29 -0800
Subject: [PATCH] fetchtorrent: test single-file torrents

---
 .editorconfig                                  |  2 +-
 .gitattributes                                 |  3 +++
 .../fetchtorrent/test-single-file.torrent      |  1 +
 pkgs/build-support/fetchtorrent/tests.nix      | 18 +++++++++++++++++-
 4 files changed, 22 insertions(+), 2 deletions(-)
 create mode 100644 pkgs/build-support/fetchtorrent/test-single-file.torrent

diff --git a/.editorconfig b/.editorconfig
index 3a2159d33734..873d7efb1372 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -79,7 +79,7 @@ indent_size = unset
 trim_trailing_whitespace = true
 
 # binaries
-[*.nib]
+[*.{nib,torrent}]
 end_of_line = unset
 insert_final_newline = unset
 trim_trailing_whitespace = unset
diff --git a/.gitattributes b/.gitattributes
index d67974e66b69..2c113f5fd5dc 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -62,3 +62,6 @@ ci/OWNERS linguist-language=CODEOWNERS
 # patching CRLF line endings from an upstream source package.
 *.diff !text !eol
 *.patch !text !eol
+
+# Torrent files are binary files and should not be re-encoded.
+*.torrent !text !eol
diff --git a/pkgs/build-support/fetchtorrent/test-single-file.torrent b/pkgs/build-support/fetchtorrent/test-single-file.torrent
new file mode 100644
index 000000000000..0d8ecae342d7
--- /dev/null
+++ b/pkgs/build-support/fetchtorrent/test-single-file.torrent
@@ -0,0 +1 @@
+d10:created by13:mktorrent 1.113:creation datei1772926249e4:infod6:lengthi1097e4:name7:COPYING12:piece lengthi262144e6:pieces20:€åÏÊ\c™èçæÉ\Q3Ní-e8:url-list96:https://raw.githubusercontent.com/NixOS/nixpkgs/3d82431ec4b51262989559b821b83abe4a9f6dbd/COPYINGe
\ No newline at end of file
diff --git a/pkgs/build-support/fetchtorrent/tests.nix b/pkgs/build-support/fetchtorrent/tests.nix
index c4f61aa30ad9..ef14999254ff 100644
--- a/pkgs/build-support/fetchtorrent/tests.nix
+++ b/pkgs/build-support/fetchtorrent/tests.nix
@@ -75,7 +75,7 @@ let
     );
 in
 # Seems almost but not quite worth using lib.mapCartesianProduct...
-builtins.mapAttrs (n: v: testers.invalidateFetcherByDrvHash fetchtorrentWithHash v) {
+(builtins.mapAttrs (n: v: testers.invalidateFetcherByDrvHash fetchtorrentWithHash v) {
   http-link = {
     inherit (http) url;
     inherit (flattened) postFetch;
@@ -140,4 +140,20 @@ builtins.mapAttrs (n: v: testers.invalidateFetcherByDrvHash fetchtorrentWithHash
   #  flatten = false;
   #  inherit (unflattened) postFetch;
   #};
+})
+// {
+  # Make sure we can download and "flatten" single-file torrents.
+  # We only test with transmission because we use a web-seed and rqbit
+  # doesn't support web-seeds.
+  single-file = fetchtorrent {
+    hash = "sha256-u5c/ZN5V79Jg1aN6spbui4OdhExsXjofk1JpvUdW7Ro=";
+    backend = "transmission";
+    flatten = true;
+    url = "${./test-single-file.torrent}";
+    meta = {
+      hydraPlatforms = [ ];
+      license = lib.licenses.mit;
+      description = "The license file for the Nixpkgs repository as of 7 March 2026";
+    };
+  };
 }