Add wiki page revision retrieval

Co-Authored-By: Virgil <virgil@lethean.io>

wiki.go

@@ -3,6 +3,7 @@ package forge
 import (
 	"context"
 	"iter"
+	"strconv"
 
 	"dappco.re/go/core/forge/types"
 )
@@ -58,6 +59,20 @@ func (s *WikiService) GetPage(ctx context.Context, owner, repo, pageName string)
 	return &out, nil
 }
 
+// GetPageRevisions returns the revision history for a wiki page.
+// Page is optional; pass a value greater than zero to request a specific page of results.
+func (s *WikiService) GetPageRevisions(ctx context.Context, owner, repo, pageName string, page int) (*types.WikiCommitList, error) {
+	path := ResolvePath("/api/v1/repos/{owner}/{repo}/wiki/revisions/{pageName}", pathParams("owner", owner, "repo", repo, "pageName", pageName))
+	if page > 0 {
+		path += "?page=" + strconv.Itoa(page)
+	}
+	var out types.WikiCommitList
+	if err := s.client.Get(ctx, path, &out); err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
 // CreatePage creates a new wiki page.
 func (s *WikiService) CreatePage(ctx context.Context, owner, repo string, opts *types.CreateWikiPageOptions) (*types.WikiPage, error) {
 	path := ResolvePath("/api/v1/repos/{owner}/{repo}/wiki/new", pathParams("owner", owner, "repo", repo))

wiki_test.go

@@ -105,6 +105,43 @@ func TestWikiService_GetPage_Good(t *testing.T) {
 	}
 }
 
+func TestWikiService_GetPageRevisions_Good(t *testing.T) {
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodGet {
+			t.Errorf("expected GET, got %s", r.Method)
+		}
+		if r.URL.Path != "/api/v1/repos/core/go-forge/wiki/revisions/Home" {
+			t.Errorf("wrong path: %s", r.URL.Path)
+		}
+		if got := r.URL.Query().Get("page"); got != "2" {
+			t.Errorf("got page=%q, want %q", got, "2")
+		}
+		json.NewEncoder(w).Encode(types.WikiCommitList{
+			Count: 2,
+			WikiCommits: []*types.WikiCommit{
+				{ID: "abc123", Message: "Initial import"},
+				{ID: "def456", Message: "Updated home page"},
+			},
+		})
+	}))
+	defer srv.Close()
+
+	f := NewForge(srv.URL, "tok")
+	revisions, err := f.Wiki.GetPageRevisions(context.Background(), "core", "go-forge", "Home", 2)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if revisions.Count != 2 {
+		t.Fatalf("got count=%d, want 2", revisions.Count)
+	}
+	if len(revisions.WikiCommits) != 2 {
+		t.Fatalf("got %d revisions, want 2", len(revisions.WikiCommits))
+	}
+	if revisions.WikiCommits[0].ID != "abc123" || revisions.WikiCommits[1].Message != "Updated home page" {
+		t.Fatalf("got %#v", revisions.WikiCommits)
+	}
+}
+
 func TestWikiService_CreatePage_Good(t *testing.T) {
 	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if r.Method != http.MethodPost {