新增：readme获取接口

routers/hat/hat.go

@@ -70,6 +70,9 @@ func Routers() *web.Route {
 							Delete(repo.DeleteWiki)
 					})
 				})
+				m.Group("/readme", func() {
+					m.Get("", repo.GetReadmeContents)
+				})
 				m.Get("/commits_slice", repo.GetAllCommitsSliceByTime)
 			}, repoAssignment())
 		})

routers/hat/repo/file.go

@@ -0,0 +1,57 @@
+package repo
+
+import (
+	"net/http"
+	"strings"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	unit_model "code.gitea.io/gitea/models/unit"
+
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/git"
+	api "code.gitea.io/gitea/modules/structs"
+	files_service "code.gitea.io/gitea/services/repository/files"
+)
+
+func GetReadmeContents(ctx *context.APIContext) {
+	if !canReadFiles(ctx.Repo) {
+		ctx.Error(http.StatusInternalServerError, "canReadFiles", repo_model.ErrUserDoesNotHaveAccessToRepo{
+			UserID:   ctx.ContextUser.ID,
+			RepoName: ctx.Repo.Repository.LowerName,
+		})
+		return
+	}
+
+	treePath := ctx.Params("*")
+	ref := ctx.Params(":ref")
+	readmePath := "README.md"
+	filesListInterface, err := files_service.GetContentsOrList(ctx, ctx.Repo.Repository, treePath, ref)
+	if err != nil {
+		ctx.Error(http.StatusInternalServerError, "GetContentsOrList", err)
+		return
+	}
+	filesList, ok := filesListInterface.([]*api.ContentsResponse)
+	if ok {
+		for _, file := range filesList {
+			if strings.ToLower(file.Name) == "readme.md" {
+				readmePath = file.Name
+				break
+			}
+		}
+	}
+	newTreePath := treePath + "/" + readmePath
+	if fileList, err := files_service.GetContentsOrList(ctx, ctx.Repo.Repository, newTreePath, ref); err != nil {
+		if git.IsErrNotExist(err) {
+			ctx.NotFound("GetContentsOrList", err)
+			return
+		}
+		ctx.Error(http.StatusInternalServerError, "GetContentsOrList", err)
+
+	} else {
+		ctx.JSON(http.StatusOK, fileList)
+	}
+}
+
+func canReadFiles(r *context.Repository) bool {
+	return r.Permission.CanRead(unit_model.UnitCode.Type)
+}