Allow adding new files to an empty repo (#24164)

![image](https://user-images.githubusercontent.com/2114189/232561612-2bfcfd0a-fc04-47ba-965f-5d0bcea46c54.png)

3 files changed, 112 insertions, 18 deletions

diff --git a/tests/integration/empty_repo_test.go b/tests/integration/empty_repo_test.go
index 1a83de1292..80697c7329 100644
--- a/tests/integration/empty_repo_test.go
+++ b/tests/integration/empty_repo_test.go
@@ -4,12 +4,19 @@
 package integration
 
 import (
+	"bytes"
+	"io"
+	"mime/multipart"
 	"net/http"
 	"testing"
 
+	"code.gitea.io/gitea/models/db"
 	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unittest"
 	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
 	"code.gitea.io/gitea/tests"
 
 	"github.com/stretchr/testify/assert"
@@ -17,7 +24,7 @@ import (
 
 func TestEmptyRepo(t *testing.T) {
 	defer tests.PrepareTestEnv(t)()
-	subpaths := []string{
+	subPaths := []string{
 		"commits/master",
 		"raw/foo",
 		"commit/1ae57b34ccf7e18373",
@@ -26,8 +33,75 @@ func TestEmptyRepo(t *testing.T) {
 	emptyRepo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 5})
 	assert.True(t, emptyRepo.IsEmpty)
 	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: emptyRepo.OwnerID})
-	for _, subpath := range subpaths {
-		req := NewRequestf(t, "GET", "/%s/%s/%s", owner.Name, emptyRepo.Name, subpath)
+	for _, subPath := range subPaths {
+		req := NewRequestf(t, "GET", "/%s/%s/%s", owner.Name, emptyRepo.Name, subPath)
 		MakeRequest(t, req, http.StatusNotFound)
 	}
 }
+
+func TestEmptyRepoAddFile(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+
+	err := user_model.UpdateUserCols(db.DefaultContext, &user_model.User{ID: 30, ProhibitLogin: false}, "prohibit_login")
+	assert.NoError(t, err)
+
+	session := loginUser(t, "user30")
+	req := NewRequest(t, "GET", "/user30/empty/_new/"+setting.Repository.DefaultBranch)
+	resp := session.MakeRequest(t, req, http.StatusOK)
+	doc := NewHTMLParser(t, resp.Body).Find(`input[name="commit_choice"]`)
+	assert.Equal(t, "", doc.AttrOr("checked", "_no_"))
+	req = NewRequestWithValues(t, "POST", "/user30/empty/_new/"+setting.Repository.DefaultBranch, map[string]string{
+		"_csrf":         GetCSRF(t, session, "/user/settings"),
+		"commit_choice": "direct",
+		"tree_path":     "test-file.md",
+		"content":       "newly-added-test-file",
+	})
+
+	resp = session.MakeRequest(t, req, http.StatusSeeOther)
+	redirect := test.RedirectURL(resp)
+	assert.Equal(t, "/user30/empty/src/branch/"+setting.Repository.DefaultBranch+"/test-file.md", redirect)
+
+	req = NewRequest(t, "GET", redirect)
+	resp = session.MakeRequest(t, req, http.StatusOK)
+	assert.Contains(t, resp.Body.String(), "newly-added-test-file")
+}
+
+func TestEmptyRepoUploadFile(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+
+	err := user_model.UpdateUserCols(db.DefaultContext, &user_model.User{ID: 30, ProhibitLogin: false}, "prohibit_login")
+	assert.NoError(t, err)
+
+	session := loginUser(t, "user30")
+	req := NewRequest(t, "GET", "/user30/empty/_new/"+setting.Repository.DefaultBranch)
+	resp := session.MakeRequest(t, req, http.StatusOK)
+	doc := NewHTMLParser(t, resp.Body).Find(`input[name="commit_choice"]`)
+	assert.Equal(t, "", doc.AttrOr("checked", "_no_"))
+
+	body := &bytes.Buffer{}
+	mpForm := multipart.NewWriter(body)
+	_ = mpForm.WriteField("_csrf", GetCSRF(t, session, "/user/settings"))
+	file, _ := mpForm.CreateFormFile("file", "uploaded-file.txt")
+	_, _ = io.Copy(file, bytes.NewBufferString("newly-uploaded-test-file"))
+	_ = mpForm.Close()
+
+	req = NewRequestWithBody(t, "POST", "/user30/empty/upload-file", body)
+	req.Header.Add("Content-Type", mpForm.FormDataContentType())
+	resp = session.MakeRequest(t, req, http.StatusOK)
+	respMap := map[string]string{}
+	assert.NoError(t, json.Unmarshal(resp.Body.Bytes(), &respMap))
+
+	req = NewRequestWithValues(t, "POST", "/user30/empty/_upload/"+setting.Repository.DefaultBranch, map[string]string{
+		"_csrf":         GetCSRF(t, session, "/user/settings"),
+		"commit_choice": "direct",
+		"files":         respMap["uuid"],
+		"tree_path":     "",
+	})
+	resp = session.MakeRequest(t, req, http.StatusSeeOther)
+	redirect := test.RedirectURL(resp)
+	assert.Equal(t, "/user30/empty/src/branch/"+setting.Repository.DefaultBranch+"/", redirect)
+
+	req = NewRequest(t, "GET", redirect)
+	resp = session.MakeRequest(t, req, http.StatusOK)
+	assert.Contains(t, resp.Body.String(), "uploaded-file.txt")
+}
diff --git a/tests/integration/integration_test.go b/tests/integration/integration_test.go
index 965bae576c..33a815b154 100644
--- a/tests/integration/integration_test.go
+++ b/tests/integration/integration_test.go
@@ -124,6 +124,9 @@ func TestMain(m *testing.M) {
 		fmt.Printf("Error initializing test database: %v\n", err)
 		os.Exit(1)
 	}
+
+	// FIXME: the console logger is deleted by mistake, so if there is any `log.Fatal`, developers won't see any error message.
+	// Instead, "No tests were found",  last nonsense log is "According to the configuration, subsequent logs will not be printed to the console"
 	exitCode := m.Run()
 
 	tests.WriterCloser.Reset()
@@ -366,10 +369,12 @@ const NoExpectedStatus = -1
 func MakeRequest(t testing.TB, req *http.Request, expectedStatus int) *httptest.ResponseRecorder {
 	t.Helper()
 	recorder := httptest.NewRecorder()
+	if req.RemoteAddr == "" {
+		req.RemoteAddr = "test-mock:12345"
+	}
 	c.ServeHTTP(recorder, req)
 	if expectedStatus != NoExpectedStatus {
-		if !assert.EqualValues(t, expectedStatus, recorder.Code,
-			"Request: %s %s", req.Method, req.URL.String()) {
+		if !assert.EqualValues(t, expectedStatus, recorder.Code, "Request: %s %s", req.Method, req.URL.String()) {
 			logUnexpectedResponse(t, recorder)
 		}
 	}
@@ -410,8 +415,10 @@ func logUnexpectedResponse(t testing.TB, recorder *httptest.ResponseRecorder) {
 		return
 	} else if len(respBytes) < 500 {
 		// if body is short, just log the whole thing
-		t.Log("Response:", string(respBytes))
+		t.Log("Response: ", string(respBytes))
 		return
+	} else {
+		t.Log("Response length: ", len(respBytes))
 	}
 
 	// log the "flash" error message, if one exists
diff --git a/tests/test_utils.go b/tests/test_utils.go
index 102dd3d298..b3c98427c3 100644
--- a/tests/test_utils.go
+++ b/tests/test_utils.go
@@ -10,7 +10,6 @@ import (
 	"os"
 	"path"
 	"path/filepath"
-	"runtime"
 	"testing"
 
 	"code.gitea.io/gitea/models/db"
@@ -30,29 +29,44 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func exitf(format string, args ...interface{}) {
+	fmt.Printf(format+"\n", args...)
+	os.Exit(1)
+}
+
 func InitTest(requireGitea bool) {
 	giteaRoot := base.SetupGiteaRoot()
 	if giteaRoot == "" {
-		fmt.Println("Environment variable $GITEA_ROOT not set")
-		os.Exit(1)
+		exitf("Environment variable $GITEA_ROOT not set")
 	}
+	setting.AppWorkPath = giteaRoot
 	if requireGitea {
 		giteaBinary := "gitea"
-		if runtime.GOOS == "windows" {
+		if setting.IsWindows {
 			giteaBinary += ".exe"
 		}
 		setting.AppPath = path.Join(giteaRoot, giteaBinary)
 		if _, err := os.Stat(setting.AppPath); err != nil {
-			fmt.Printf("Could not find gitea binary at %s\n", setting.AppPath)
-			os.Exit(1)
+			exitf("Could not find gitea binary at %s", setting.AppPath)
 		}
 	}
 
 	giteaConf := os.Getenv("GITEA_CONF")
 	if giteaConf == "" {
-		fmt.Println("Environment variable $GITEA_CONF not set")
-		os.Exit(1)
-	} else if !path.IsAbs(giteaConf) {
+		// By default, use sqlite.ini for testing, then IDE like GoLand can start the test process with debugger.
+		// It's easier for developers to debug bugs step by step with a debugger.
+		// Notice: when doing "ssh push", Gitea executes sub processes, debugger won't work for the sub processes.
+		giteaConf = "tests/sqlite.ini"
+		_ = os.Setenv("GITEA_CONF", giteaConf)
+		fmt.Printf("Environment variable $GITEA_CONF not set, use default: %s\n", giteaConf)
+		if !setting.EnableSQLite3 {
+			exitf(`Need to enable SQLite3 for sqlite.ini testing, please set: -tags "sqlite,sqlite_unlock_notify"`)
+		}
+	}
+
+	setting.IsInTesting = true
+
+	if !path.IsAbs(giteaConf) {
 		setting.CustomConf = path.Join(giteaRoot, giteaConf)
 	} else {
 		setting.CustomConf = giteaConf
@@ -69,8 +83,7 @@ func InitTest(requireGitea bool) {
 
 	setting.LoadDBSetting()
 	if err := storage.Init(); err != nil {
-		fmt.Printf("Init storage failed: %v", err)
-		os.Exit(1)
+		exitf("Init storage failed: %v", err)
 	}
 
 	switch {
@@ -221,7 +234,7 @@ func PrepareTestEnv(t testing.TB, skip ...int) func() {
 	return deferFn
 }
 
-// resetFixtures flushes queues, reloads fixtures and resets test repositories within a single test.
+// ResetFixtures flushes queues, reloads fixtures and resets test repositories within a single test.
 // Most tests should call defer tests.PrepareTestEnv(t)() (or have onGiteaRun do that for them) but sometimes
 // within a single test this is required
 func ResetFixtures(t *testing.T) {