shortcuts/pr/pr.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"net/url"
 
+	"github.com/gitlink-org/gitlink-cli/internal/output"
 	"github.com/gitlink-org/gitlink-cli/shortcuts/common"
 )
 
@@ -166,5 +167,54 @@ func Shortcuts() []*common.Shortcut {
 				return ctx.Output(env)
 			},
 		},
+		{
+			Name:        "comment",
+			Description: "Add a comment to a pull request",
+			Flags: []common.Flag{
+				{Name: "id", Short: "i", Usage: "PR number", Required: true},
+				{Name: "body", Short: "b", Usage: "Comment body", Required: true},
+			},
+			Run: func(ctx *common.RuntimeContext) error {
+				if err := ctx.ResolveOwnerRepo(); err != nil {
+					return err
+				}
+				id, _ := ctx.RequireArg("id")
+				body, _ := ctx.RequireArg("body")
+
+				prEnv, err := ctx.CallAPI("GET", fmt.Sprintf("%s/pulls/%s", ctx.RepoPath(), id), nil)
+				if err != nil {
+					return fmt.Errorf("fetch PR: %w", err)
+				}
+				issueID, err := extractIssueID(prEnv)
+				if err != nil {
+					return err
+				}
+
+				payload := map[string]interface{}{
+					"notes": body,
+				}
+				env, err := ctx.CallAPI("POST", fmt.Sprintf("/v1/%s/%s/issues/%d/journals", ctx.Owner, ctx.Repo, issueID), payload)
+				if err != nil {
+					return err
+				}
+				return ctx.Output(env)
+			},
+		},
 	}
 }
+
+func extractIssueID(env *output.Envelope) (int64, error) {
+	data, ok := env.Data.(map[string]interface{})
+	if !ok {
+		return 0, fmt.Errorf("unexpected PR response format")
+	}
+	issue, ok := data["issue"].(map[string]interface{})
+	if !ok {
+		return 0, fmt.Errorf("PR response missing issue field")
+	}
+	idFloat, ok := issue["id"].(float64)
+	if !ok {
+		return 0, fmt.Errorf("PR response missing issue.id field")
+	}
+	return int64(idFloat), nil
+}

shortcuts/pr/pr_test.go

@@ -0,0 +1,143 @@
+package pr
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gitlink-org/gitlink-cli/internal/client"
+	"github.com/gitlink-org/gitlink-cli/shortcuts/common"
+)
+
+func TestPRCommentPostsToCorrectIssueJournal(t *testing.T) {
+	var journalPayload map[string]interface{}
+	var journalPath string
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case r.Method == "GET" && r.URL.Path == "/owner/repo/pulls/13.json":
+			writeJSON(t, w, map[string]interface{}{
+				"issue": map[string]interface{}{
+					"id":      float64(142301),
+					"subject": "test PR",
+				},
+				"pull_request": map[string]interface{}{
+					"id": float64(14791),
+				},
+			})
+		case r.Method == "POST" && r.URL.Path == "/v1/owner/repo/issues/142301/journals.json":
+			journalPath = r.URL.Path
+			journalPayload = decodeJSON(t, r)
+			writeJSON(t, w, map[string]interface{}{
+				"id":      float64(12345),
+				"message": "评论成功",
+			})
+		default:
+			t.Fatalf("unexpected request: %s %s", r.Method, r.URL.Path)
+		}
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "comment", map[string]string{
+		"id":   "13",
+		"body": "LGTM, looks good!",
+	})
+	if err != nil {
+		t.Fatalf("comment shortcut failed: %v", err)
+	}
+
+	if journalPath == "" {
+		t.Fatal("journal endpoint was not called")
+	}
+	assertEqual(t, journalPayload["notes"], "LGTM, looks good!")
+}
+
+func TestPRCommentFailsWhenPRNotFound(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNotFound)
+		writeJSON(t, w, map[string]interface{}{
+			"status": 404,
+			"error":  "Not Found",
+		})
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "comment", map[string]string{
+		"id":   "999",
+		"body": "test",
+	})
+	if err == nil {
+		t.Fatal("expected error for non-existent PR, got nil")
+	}
+}
+
+func TestPRCommentFailsWhenIssueFieldMissing(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		writeJSON(t, w, map[string]interface{}{
+			"pull_request": map[string]interface{}{
+				"id": float64(14791),
+			},
+		})
+	}))
+	defer server.Close()
+
+	err := runPRShortcut(t, server, "comment", map[string]string{
+		"id":   "13",
+		"body": "test",
+	})
+	if err == nil {
+		t.Fatal("expected error when issue field is missing, got nil")
+	}
+}
+
+func runPRShortcut(t *testing.T, server *httptest.Server, name string, args map[string]string) error {
+	t.Helper()
+	shortcut := findPRShortcut(t, name)
+	ctx := &common.RuntimeContext{
+		Client: &client.Client{
+			HTTP:    server.Client(),
+			BaseURL: server.URL,
+		},
+		Owner:  "owner",
+		Repo:   "repo",
+		Format: "json",
+		Args:   args,
+	}
+	return shortcut.Run(ctx)
+}
+
+func findPRShortcut(t *testing.T, name string) *common.Shortcut {
+	t.Helper()
+	for _, shortcut := range Shortcuts() {
+		if shortcut.Name == name {
+			return shortcut
+		}
+	}
+	t.Fatalf("shortcut %q not found", name)
+	return nil
+}
+
+func decodeJSON(t *testing.T, r *http.Request) map[string]interface{} {
+	t.Helper()
+	var payload map[string]interface{}
+	if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
+		t.Fatalf("failed to decode request body: %v", err)
+	}
+	return payload
+}
+
+func writeJSON(t *testing.T, w http.ResponseWriter, payload interface{}) {
+	t.Helper()
+	w.Header().Set("Content-Type", "application/json")
+	if err := json.NewEncoder(w).Encode(payload); err != nil {
+		t.Fatalf("failed to write response: %v", err)
+	}
+}
+
+func assertEqual(t *testing.T, got interface{}, want interface{}) {
+	t.Helper()
+	if fmt.Sprintf("%v", got) != fmt.Sprintf("%v", want) {
+		t.Fatalf("got %v (%T), want %v (%T)", got, got, want, want)
+	}
+}

skills/gitlink-pr/SKILL.md

@@ -26,6 +26,7 @@ metadata:
 | `pr +close` | 关闭 PR | 是 |
 | `pr +files` | 变更文件列表 | 否 |
 | `pr +diff` | 查看提交列表 | 否 |
+| `pr +comment` | 给 PR 添加评论 | 是 |
 
 ## 使用示例
 
@@ -48,6 +49,9 @@ gitlink-cli pr +close --id 3
 
 # 查看变更文件（含 diff 内容）
 gitlink-cli pr +files --id 3
+
+# 给 PR 添加评论
+gitlink-cli pr +comment --id 3 --body "LGTM, ready to merge"
 ```
 
 ## 创建 PR 的完整流程