1 files changed, 56 insertions, 0 deletions
diff --git a/http_handle_repo_contrib_one.go b/http_handle_repo_contrib_one.go
new file mode 100644
index 0000000..a09b6e8
--- /dev/null
+++ b/http_handle_repo_contrib_one.go
@@ -0,0 +1,56 @@
+package main
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/go-git/go-git/v5"
+)
+
+func handle_repo_contrib_one(w http.ResponseWriter, r *http.Request, params map[string]any) {
+	mr_id_string := params["mr_id"].(string)
+	mr_id, err := strconv.ParseInt(mr_id_string, 10, strconv.IntSize)
+	if err != nil {
+		http.Error(w, "Merge request ID not an integer: "+err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	var title, status, source_ref, destination_branch string
+	err = database.QueryRow(r.Context(), "SELECT title, status, source_ref, destination_branch FROM merge_requests WHERE id = $1", mr_id).Scan(&title, &status, &source_ref, &destination_branch)
+	if err != nil {
+		http.Error(w, "Error querying merge request: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+	params["mr_title"], params["mr_status"], params["mr_source_ref"], params["mr_destination_branch"] = title, status, source_ref, destination_branch
+
+	repo := params["repo"].(*git.Repository)
+
+	source_ref_hash, err := get_ref_hash_from_type_and_name(repo, "branch", source_ref)
+	if err != nil {
+		http.Error(w, "Error getting source ref hash: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+	source_commit, err := repo.CommitObject(source_ref_hash)
+	if err != nil {
+		http.Error(w, "Error getting source commit: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+	params["source_commit"] = source_commit
+
+	destination_branch_hash, err := get_ref_hash_from_type_and_name(repo, "branch", destination_branch)
+	if err != nil {
+		http.Error(w, "Error getting destination branch hash: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+	destination_commit, err := repo.CommitObject(destination_branch_hash)
+	if err != nil {
+		http.Error(w, "Error getting destination commit: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+	params["source_commit"] = source_commit
+
+	patch, err := destination_commit.Patch(source_commit)
+	params["file_patches"] = make_usable_file_patches(patch)
+
+	render_template(w, "repo_contrib_one", params)
+}