From 345a8ee0cb56775c57c3b7da99b0726290241e18 Mon Sep 17 00:00:00 2001
From: Gabriel Fontes <eu@misterio.me>
Date: Sat, 19 Mar 2022 10:56:13 -0300
Subject: [PATCH 1/3] Fix sourcehut tag ref resolving

---
 src/libfetchers/github.cc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/libfetchers/github.cc b/src/libfetchers/github.cc
index a1430f087..d52ea649d 100644
--- a/src/libfetchers/github.cc
+++ b/src/libfetchers/github.cc
@@ -390,7 +390,7 @@ struct SourceHutInputScheme : GitArchiveInputScheme
 
             ref_uri = line.substr(ref_index+5, line.length()-1);
         } else
-            ref_uri = fmt("refs/heads/%s", ref);
+            ref_uri = fmt("refs/(heads|tags)/%s", ref);
 
         auto file = store->toRealPath(
             downloadFile(store, fmt("%s/info/refs", base_url), "source", false, headers).storePath);
@@ -399,9 +399,9 @@ struct SourceHutInputScheme : GitArchiveInputScheme
         std::string line;
         std::string id;
         while(getline(is, line)) {
-            auto index = line.find(ref_uri);
-            if (index != std::string::npos) {
-                id = line.substr(0, index-1);
+            std::regex pattern(ref_uri);
+            if (std::regex_search(line, pattern)) {
+                id = line.substr(0, line.find('\t'));
                 break;
             }
         }

From 9720797f695f7646744e9cd020fa79679441814f Mon Sep 17 00:00:00 2001
From: Gabriel Fontes <eu@misterio.me>
Date: Sat, 19 Mar 2022 11:04:04 -0300
Subject: [PATCH 2/3] Don't partial match sourcehut refs

---
 src/libfetchers/github.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libfetchers/github.cc b/src/libfetchers/github.cc
index d52ea649d..58b6e7c04 100644
--- a/src/libfetchers/github.cc
+++ b/src/libfetchers/github.cc
@@ -399,7 +399,9 @@ struct SourceHutInputScheme : GitArchiveInputScheme
         std::string line;
         std::string id;
         while(getline(is, line)) {
-            std::regex pattern(ref_uri);
+            // Append $ to avoid partial name matches
+            std::regex pattern(fmt("%s$", ref_uri));
+
             if (std::regex_search(line, pattern)) {
                 id = line.substr(0, line.find('\t'));
                 break;

From 31544b93ffa985661541309ec2360dfb7b527a80 Mon Sep 17 00:00:00 2001
From: Gabriel Fontes <eu@misterio.me>
Date: Sat, 19 Mar 2022 11:38:45 -0300
Subject: [PATCH 3/3] Fix sourcehut integration test

The new implementation relies on tab separting the hash and ref (this is how sourcehut does it). This fixes the integration test to use a tab instead of a space.
---
 tests/sourcehut-flakes.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/sourcehut-flakes.nix b/tests/sourcehut-flakes.nix
index d1d89d149..6a1930904 100644
--- a/tests/sourcehut-flakes.nix
+++ b/tests/sourcehut-flakes.nix
@@ -59,7 +59,7 @@ let
       echo 'ref: refs/heads/master' > $out/HEAD
 
       mkdir -p $out/info
-      echo '${nixpkgs.rev} refs/heads/master' > $out/info/refs
+      echo -e '${nixpkgs.rev}\trefs/heads/master' > $out/info/refs
     '';
 
 in