From 1a7fc53c98f06f79955d217f91c8a5553e5a27b3 Mon Sep 17 00:00:00 2001
From: Ethan Koenig <etk39@cornell.edu>
Date: Fri, 6 Jan 2017 02:05:09 -0500
Subject: [PATCH] API endpoint for stargazers (#597)

---
 models/star.go              | 12 ++++++------
 routers/api/v1/api.go       |  1 +
 routers/api/v1/repo/star.go | 25 +++++++++++++++++++++++++
 3 files changed, 32 insertions(+), 6 deletions(-)
 create mode 100644 routers/api/v1/repo/star.go

diff --git a/models/star.go b/models/star.go
index e2feb2c4b6..923bab57b5 100644
--- a/models/star.go
+++ b/models/star.go
@@ -63,12 +63,12 @@ func IsStaring(userID, repoID int64) bool {
 // GetStargazers returns the users that starred the repo.
 func (repo *Repository) GetStargazers(page int) ([]*User, error) {
 	users := make([]*User, 0, ItemsPerPage)
-	err := x.
-		Limit(ItemsPerPage, (page-1)*ItemsPerPage).
-		Where("star.repo_id = ?", repo.ID).
-		Join("LEFT", "star", "`user`.id = star.uid").
-		Find(&users)
-	return users, err
+	sess := x.Where("star.repo_id = ?", repo.ID).
+		Join("LEFT", "star", "`user`.id = star.uid")
+	if page > 0 {
+		sess = sess.Limit(ItemsPerPage, (page-1)*ItemsPerPage)
+	}
+	return users, sess.Find(&users)
 }
 
 // GetStarredRepos returns the repos the user starred.
diff --git a/routers/api/v1/api.go b/routers/api/v1/api.go
index c35f9afa6f..cc773150e6 100644
--- a/routers/api/v1/api.go
+++ b/routers/api/v1/api.go
@@ -326,6 +326,7 @@ func RegisterRoutes(m *macaron.Macaron) {
 						Patch(reqRepoWriter(), bind(api.EditMilestoneOption{}), repo.EditMilestone).
 						Delete(reqRepoWriter(), repo.DeleteMilestone)
 				})
+				m.Get("/stargazers", repo.ListStargazers)
 				m.Group("/subscription", func() {
 					m.Get("", user.IsWatching)
 					m.Put("", user.Watch)
diff --git a/routers/api/v1/repo/star.go b/routers/api/v1/repo/star.go
new file mode 100644
index 0000000000..20e7e4e508
--- /dev/null
+++ b/routers/api/v1/repo/star.go
@@ -0,0 +1,25 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package repo
+
+import (
+	api "code.gitea.io/sdk/gitea"
+
+	"code.gitea.io/gitea/modules/context"
+)
+
+// ListStargazers list a repository's stargazers
+func ListStargazers(ctx *context.APIContext) {
+	stargazers, err := ctx.Repo.Repository.GetStargazers(-1)
+	if err != nil {
+		ctx.Error(500, "GetStargazers", err)
+		return
+	}
+	users := make([]*api.User, len(stargazers))
+	for i, stargazer := range stargazers {
+		users[i] = stargazer.APIFormat()
+	}
+	ctx.JSON(200, users)
+}