Eliminate MM_SERVER_PATH (#24968)

server/Makefile

@@ -45,9 +45,6 @@ ifeq ($(BUILD_NUMBER),)
 	BUILD_NUMBER := dev
 endif
 
-# Ensure developer invocation and tests are anchored.
-MM_SERVER_PATH ?= $(ROOT)
-
 # Go test sum configuration
 GOTESTSUM_FORMAT ?= testname
 GOTESTSUM_JUNITFILE ?= report.xml
@@ -425,7 +422,6 @@ else
 	@echo Running only TE tests
 endif
 
-test-server-race: export MM_SERVER_PATH := $(MM_SERVER_PATH)
 test-server-race: export GOTESTSUM_FORMAT := $(GOTESTSUM_FORMAT)
 test-server-race: export GOTESTSUM_JUNITFILE := $(GOTESTSUM_JUNITFILE)
 test-server-race: export GOTESTSUM_JSONFILE := $(GOTESTSUM_JSONFILE)
@@ -444,7 +440,6 @@ ifneq ($(IS_CI),true)
   endif
 endif
 
-test-server: export MM_SERVER_PATH := $(MM_SERVER_PATH)
 test-server: export GOTESTSUM_FORMAT := $(GOTESTSUM_FORMAT)
 test-server: export GOTESTSUM_JUNITFILE := $(GOTESTSUM_JUNITFILE)
 test-server: export GOTESTSUM_JSONFILE := $(GOTESTSUM_JSONFILE)
@@ -459,7 +454,6 @@ ifneq ($(IS_CI),true)
   endif
 endif
 
-test-server-ee: export MM_SERVER_PATH := $(MM_SERVER_PATH)
 test-server-ee: export GOTESTSUM_FORMAT := $(GOTESTSUM_FORMAT)
 test-server-ee: export GOTESTSUM_JUNITFILE := $(GOTESTSUM_JUNITFILE)
 test-server-ee: export GOTESTSUM_JSONFILE := $(GOTESTSUM_JSONFILE)
@@ -467,7 +461,6 @@ test-server-ee: check-prereqs-enterprise start-docker gotestsum ## Runs EE tests
 	@echo Running only EE tests
 	$(GOBIN)/gotestsum --packages="$(EE_PACKAGES)" -- $(GOFLAGS) -timeout=20m
 
-test-server-quick: export MM_SERVER_PATH := $(MM_SERVER_PATH)
 test-server-quick: export GOTESTSUM_FORMAT := $(GOTESTSUM_FORMAT)
 test-server-quick: export GOTESTSUM_JUNITFILE := $(GOTESTSUM_JUNITFILE)
 test-server-quick: export GOTESTSUM_JSONFILE := $(GOTESTSUM_JSONFILE)
@@ -516,7 +509,6 @@ inject-test-data: # add test data to the local instance.
 	@echo Login with a regular account username=user-1 password=SampleUs@r-1
 	@echo ========================================================================
 
-test-mmctl-unit: export MM_SERVER_PATH := $(MM_SERVER_PATH)
 test-mmctl-unit: export GOTESTSUM_FORMAT := $(GOTESTSUM_FORMAT)
 test-mmctl-unit: export GOTESTSUM_JUNITFILE := $(GOTESTSUM_JUNITFILE)
 test-mmctl-unit: export GOTESTSUM_JSONFILE := $(GOTESTSUM_JSONFILE)
@@ -524,7 +516,6 @@ test-mmctl-unit: gotestsum
 	@echo Running mmctl unit tests
 	$(GOBIN)/gotestsum --packages="$(MMCTL_PACKAGES)" -- -tags 'unit $(MMCTL_BUILD_TAGS)' $(MMCTL_TESTFLAGS)
 
-test-mmctl-e2e: export MM_SERVER_PATH := $(MM_SERVER_PATH)
 test-mmctl-e2e: export GOTESTSUM_FORMAT := $(GOTESTSUM_FORMAT)
 test-mmctl-e2e: export GOTESTSUM_JUNITFILE := $(GOTESTSUM_JUNITFILE)
 test-mmctl-e2e: export GOTESTSUM_JSONFILE := $(GOTESTSUM_JSONFILE)
@@ -532,7 +523,6 @@ test-mmctl-e2e: gotestsum start-docker
 	@echo Running mmctl e2e tests
 	$(GOBIN)/gotestsum --packages="$(MMCTL_PACKAGES)" -- -tags 'e2e $(MMCTL_BUILD_TAGS)' $(MMCTL_TESTFLAGS)
 
-test-mmctl: export MM_SERVER_PATH := $(MM_SERVER_PATH)
 test-mmctl: export GOTESTSUM_FORMAT := $(GOTESTSUM_FORMAT)
 test-mmctl: export GOTESTSUM_JUNITFILE := $(GOTESTSUM_JUNITFILE)
 test-mmctl: export GOTESTSUM_JSONFILE := $(GOTESTSUM_JSONFILE)
@@ -540,7 +530,6 @@ test-mmctl: gotestsum start-docker
 	@echo Running all mmctl tests
 	$(GOBIN)/gotestsum --packages="$(MMCTL_PACKAGES)" -- -tags 'unit e2e $(MMCTL_BUILD_TAGS)' $(MMCTL_TESTFLAGS)
 
-test-mmctl-coverage: export MM_SERVER_PATH := $(MM_SERVER_PATH)
 test-mmctl-coverage: export GOTESTSUM_FORMAT := $(GOTESTSUM_FORMAT)
 test-mmctl-coverage: export GOTESTSUM_JUNITFILE := $(GOTESTSUM_JUNITFILE)
 test-mmctl-coverage: export GOTESTSUM_JSONFILE := $(GOTESTSUM_JSONFILE)

server/channels/api4/plugin_test.go

@@ -27,6 +27,7 @@ import (
 	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/mattermost/mattermost/server/public/plugin"
 	"github.com/mattermost/mattermost/server/public/plugin/utils"
+	"github.com/mattermost/mattermost/server/v8/channels/app/plugin_api_tests"
 	"github.com/mattermost/mattermost/server/v8/channels/testlib"
 	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 )
@@ -1990,9 +1991,7 @@ func TestPluginWebSocketSession(t *testing.T) {
 	pluginID := "com.mattermost.websocket_session_test"
 
 	// Compile plugin
-	testFolder, found := fileutils.FindDir("channels/app/plugin_api_tests")
+	fullPath := path.Join(plugin_api_tests.GetPackagePath(), "manual.test_websocket_session", "main.go")
-	require.True(t, found, "Cannot find tests folder")
-	fullPath := path.Join(testFolder, "manual.test_websocket_session", "main.go")
 	pluginCode, err := os.ReadFile(fullPath)
 	require.NoError(t, err)
 	require.NotEmpty(t, pluginCode)

server/channels/app/plugin_api_test.go

@@ -32,8 +32,9 @@ import (
 	"github.com/mattermost/mattermost/server/public/plugin/utils"
 	"github.com/mattermost/mattermost/server/public/shared/i18n"
 	"github.com/mattermost/mattermost/server/public/shared/request"
-	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
+	"github.com/mattermost/mattermost/server/v8/channels/app/plugin_api_tests"
 	"github.com/mattermost/mattermost/server/v8/einterfaces/mocks"
+	"github.com/mattermost/mattermost/server/v8/tests"
 )
 
 func getDefaultPluginSettingsSchema() string {
@@ -802,9 +803,7 @@ func TestPluginAPILoadPluginConfiguration(t *testing.T) {
 		cfg.PluginSettings.Plugins["testloadpluginconfig"] = pluginJson
 	})
 
-	testFolder, found := fileutils.FindDir("channels/app/plugin_api_tests")
+	fullPath := path.Join(plugin_api_tests.GetPackagePath(), "manual.test_load_configuration_plugin", "main.go")
-	require.True(t, found, "Cannot find tests folder")
-	fullPath := path.Join(testFolder, "manual.test_load_configuration_plugin", "main.go")
 
 	err = pluginAPIHookTest(t, th, fullPath, "testloadpluginconfig", `{"id": "testloadpluginconfig", "server": {"executable": "backend.exe"}, "settings_schema": {
 		"settings": [
@@ -837,9 +836,7 @@ func TestPluginAPILoadPluginConfigurationDefaults(t *testing.T) {
 		cfg.PluginSettings.Plugins["testloadpluginconfig"] = pluginJson
 	})
 
-	testFolder, found := fileutils.FindDir("channels/app/plugin_api_tests")
+	fullPath := path.Join(plugin_api_tests.GetPackagePath(), "manual.test_load_configuration_defaults_plugin", "main.go")
-	require.True(t, found, "Cannot find tests folder")
-	fullPath := path.Join(testFolder, "manual.test_load_configuration_defaults_plugin", "main.go")
 
 	err = pluginAPIHookTest(t, th, fullPath, "testloadpluginconfig", `{
 		"settings": [
@@ -927,8 +924,7 @@ func TestPluginAPIInstallPlugin(t *testing.T) {
 	defer th.TearDown()
 	api := th.SetupPluginAPI()
 
-	path, _ := fileutils.FindDir("tests")
+	tarData, err := os.ReadFile(filepath.Join(tests.GetPackagePath(), "testplugin.tar.gz"))
-	tarData, err := os.ReadFile(filepath.Join(path, "testplugin.tar.gz"))
 	require.NoError(t, err)
 
 	_, appErr := api.InstallPlugin(bytes.NewReader(tarData), true)
@@ -1004,8 +1000,7 @@ func TestInstallPlugin(t *testing.T) {
 	defer th.TearDown()
 
 	// start an http server to serve plugin's tarball to the test.
-	path, _ := fileutils.FindDir("tests")
+	ts := httptest.NewServer(http.FileServer(http.Dir(tests.GetPackagePath())))
-	ts := httptest.NewServer(http.FileServer(http.Dir(path)))
 	defer ts.Close()
 
 	th.App.UpdateConfig(func(cfg *model.Config) {
@@ -1203,8 +1198,7 @@ func pluginAPIHookTest(t *testing.T, th *TestHelper, fileName string, id string,
 
 func TestBasicAPIPlugins(t *testing.T) {
 	defaultSchema := getDefaultPluginSettingsSchema()
-	testFolder, found := fileutils.FindDir("channels/app/plugin_api_tests")
+	testFolder := plugin_api_tests.GetPackagePath()
-	require.True(t, found, "Cannot read find app folder")
 	dirs, err := os.ReadDir(testFolder)
 	require.NoError(t, err, "Cannot read test folder %v", testFolder)
 	for _, dir := range dirs {
@@ -1789,9 +1783,7 @@ func TestPluginHTTPConnHijack(t *testing.T) {
 	th := Setup(t)
 	defer th.TearDown()
 
-	testFolder, found := fileutils.FindDir("channels/app/plugin_api_tests")
+	fullPath := path.Join(plugin_api_tests.GetPackagePath(), "manual.test_http_hijack_plugin", "main.go")
-	require.True(t, found, "Cannot find tests folder")
-	fullPath := path.Join(testFolder, "manual.test_http_hijack_plugin", "main.go")
 
 	pluginCode, err := os.ReadFile(fullPath)
 	require.NoError(t, err)
@@ -1824,9 +1816,7 @@ func TestPluginHTTPUpgradeWebSocket(t *testing.T) {
 	th := Setup(t)
 	defer th.TearDown()
 
-	testFolder, found := fileutils.FindDir("channels/app/plugin_api_tests")
+	fullPath := path.Join(plugin_api_tests.GetPackagePath(), "manual.test_http_upgrade_websocket_plugin", "main.go")
-	require.True(t, found, "Cannot find tests folder")
-	fullPath := path.Join(testFolder, "manual.test_http_upgrade_websocket_plugin", "main.go")
 
 	pluginCode, err := os.ReadFile(fullPath)
 	require.NoError(t, err)
@@ -2373,9 +2363,7 @@ func TestPluginServeMetrics(t *testing.T) {
 		cfg.MetricsSettings.ListenAddress = prevAddress
 	})
 
-	testFolder, found := fileutils.FindDir("channels/app/plugin_api_tests")
+	fullPath := path.Join(plugin_api_tests.GetPackagePath(), "manual.test_serve_metrics_plugin", "main.go")
-	require.True(t, found, "Cannot find tests folder")
-	fullPath := path.Join(testFolder, "manual.test_serve_metrics_plugin", "main.go")
 
 	pluginCode, err := os.ReadFile(fullPath)
 	require.NoError(t, err)

server/channels/app/plugin_api_tests/path.go

@@ -0,0 +1,18 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package plugin_api_tests
+
+import (
+	"path/filepath"
+	"runtime"
+)
+
+// GetPackagePath returns the filepath to this package for use in tests that need to read data here.
+func GetPackagePath() string {
+	// Find the path to this file
+	_, filename, _, _ := runtime.Caller(0)
+
+	// Return the containing directory
+	return filepath.Dir(filename)
+}

server/channels/app/server.go

@@ -322,7 +322,7 @@ func NewServer(options ...Option) (*Server, error) {
 
 	templatesDir, ok := templates.GetTemplateDirectory()
 	if !ok {
-		return nil, errors.New("Failed find server templates in \"templates\" directory or MM_SERVER_PATH")
+		return nil, errors.New("Failed find server templates in \"templates\" directory")
 	}
 	htmlTemplateWatcher, errorsChan, err2 := templates.NewWithWatcher(templatesDir)
 	if err2 != nil {

server/channels/testlib/helper.go

@@ -19,6 +19,7 @@ import (
 	"github.com/mattermost/mattermost/server/v8/channels/store/searchlayer"
 	"github.com/mattermost/mattermost/server/v8/channels/store/sqlstore"
 	"github.com/mattermost/mattermost/server/v8/channels/store/storetest"
+	"github.com/mattermost/mattermost/server/v8/channels/testlib/testdata"
 	"github.com/mattermost/mattermost/server/v8/channels/utils"
 	"github.com/mattermost/mattermost/server/v8/platform/services/searchengine"
 )
@@ -195,25 +196,15 @@ func (h *MainHelper) PreloadMigrations() {
 	var buf []byte
 	var err error
 
-	basePath := os.Getenv("MM_SERVER_PATH")
-	if basePath == "" {
-		_, errFile := os.Stat("mattermost-server/server")
-		if os.IsNotExist(errFile) {
-			basePath = "mattermost/server"
-		} else {
-			basePath = "mattermost-server/server"
-		}
-	}
-	relPath := "channels/testlib/testdata"
 	switch *h.Settings.DriverName {
 	case model.DatabaseDriverPostgres:
-		finalPath := filepath.Join(basePath, relPath, "postgres_migration_warmup.sql")
+		finalPath := filepath.Join(testdata.GetPackagePath(), "postgres_migration_warmup.sql")
 		buf, err = os.ReadFile(finalPath)
 		if err != nil {
 			panic(fmt.Errorf("cannot read file: %v", err))
 		}
 	case model.DatabaseDriverMysql:
-		finalPath := filepath.Join(basePath, relPath, "mysql_migration_warmup.sql")
+		finalPath := filepath.Join(testdata.GetPackagePath(), "mysql_migration_warmup.sql")
 		buf, err = os.ReadFile(finalPath)
 		if err != nil {
 			panic(fmt.Errorf("cannot read file: %v", err))

server/channels/testlib/resources.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/mattermost/mattermost/server/public/utils"
+	"github.com/mattermost/mattermost/server/v8/channels/testlib/testdata"
 	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
 	"github.com/mattermost/mattermost/server/v8/platform/shared/filestore"
 )
@@ -38,7 +39,11 @@ type testResourceDetails struct {
 }
 
 func findFile(path string) string {
-	return fileutils.FindPath(path, fileutils.CommonBaseSearchPaths(), func(fileInfo os.FileInfo) bool {
+	// Use the testdata path to search from the root of the monorepo.
+	searchPaths := fileutils.CommonBaseSearchPaths()
+	searchPaths = append(searchPaths, filepath.Join(testdata.GetPackagePath(), "../../../"))
+
+	return fileutils.FindPath(path, searchPaths, func(fileInfo os.FileInfo) bool {
 		return !fileInfo.IsDir()
 	})
 }
@@ -53,7 +58,11 @@ func findDir(dir string) (string, bool) {
 		return path.Dir(srcPath), true
 	}
 
-	found := fileutils.FindPath(dir, fileutils.CommonBaseSearchPaths(), func(fileInfo os.FileInfo) bool {
+	// Use the testdata path to search from the root of the monorepo.
+	searchPaths := fileutils.CommonBaseSearchPaths()
+	searchPaths = append(searchPaths, filepath.Join(testdata.GetPackagePath(), "../../../"))
+
+	found := fileutils.FindPath(dir, searchPaths, func(fileInfo os.FileInfo) bool {
 		return fileInfo.IsDir()
 	})
 	if found == "" {

server/channels/testlib/testdata/path.go

@@ -0,0 +1,18 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package testdata
+
+import (
+	"path/filepath"
+	"runtime"
+)
+
+// GetPackagePath returns the filepath to this package for in tests that need to read data here.
+func GetPackagePath() string {
+	// Find the path to this file
+	_, filename, _, _ := runtime.Caller(0)
+
+	// Return the containing directory
+	return filepath.Dir(filename)
+}

server/channels/utils/fileutils/fileutils.go

@@ -17,11 +17,6 @@ func CommonBaseSearchPaths() []string {
 		"../../../..",
 	}
 
-	// this enables the server to be used in tests from a different repository
-	if mmPath := os.Getenv("MM_SERVER_PATH"); mmPath != "" {
-		paths = append(paths, mmPath)
-	}
-
 	return paths
 }
 

server/channels/utils/i18n.go

@@ -5,8 +5,6 @@ package utils
 
 import (
 	"fmt"
-	"os"
-	"path/filepath"
 
 	"github.com/mattermost/mattermost/server/public/shared/i18n"
 	"github.com/mattermost/mattermost/server/v8/channels/utils/fileutils"
@@ -16,9 +14,6 @@ import (
 // loaded already and assigns english while loading server config.
 func TranslationsPreInit() error {
 	translationsDir := "i18n"
-	if mattermostPath := os.Getenv("MM_SERVER_PATH"); mattermostPath != "" {
-		translationsDir = filepath.Join(mattermostPath, "i18n")
-	}
 
 	i18nDirectory, found := fileutils.FindDirRelBinary(translationsDir)
 	if !found {

server/cmd/mmctl/commands/export_e2e_test.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/mattermost/mattermost/server/v8/cmd/mmctl/client"
 	"github.com/mattermost/mattermost/server/v8/cmd/mmctl/printer"
+	"github.com/mattermost/mattermost/server/v8/tests"
 
 	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/mattermost/mattermost/server/public/utils"
@@ -19,9 +20,8 @@ import (
 
 func (s *MmctlE2ETestSuite) TestExportListCmdF() {
 	s.SetupTestHelper()
-	serverPath := os.Getenv("MM_SERVER_PATH")
 	importName := "import_test.zip"
-	importFilePath := filepath.Join(serverPath, "tests", importName)
+	importFilePath := filepath.Join(tests.GetPackagePath(), importName)
 	exportPath, err := filepath.Abs(filepath.Join(*s.th.App.Config().FileSettings.Directory,
 		*s.th.App.Config().ExportSettings.Directory))
 	s.Require().Nil(err)
@@ -72,9 +72,8 @@ func (s *MmctlE2ETestSuite) TestExportListCmdF() {
 
 func (s *MmctlE2ETestSuite) TestExportDeleteCmdF() {
 	s.SetupTestHelper()
-	serverPath := os.Getenv("MM_SERVER_PATH")
 	importName := "import_test.zip"
-	importFilePath := filepath.Join(serverPath, "tests", importName)
+	importFilePath := filepath.Join(tests.GetPackagePath(), importName)
 	exportPath, err := filepath.Abs(filepath.Join(*s.th.App.Config().FileSettings.Directory,
 		*s.th.App.Config().ExportSettings.Directory))
 	s.Require().Nil(err)
@@ -179,9 +178,8 @@ func (s *MmctlE2ETestSuite) TestExportCreateCmdF() {
 
 func (s *MmctlE2ETestSuite) TestExportDownloadCmdF() {
 	s.SetupTestHelper()
-	serverPath := os.Getenv("MM_SERVER_PATH")
 	importName := "import_test.zip"
-	importFilePath := filepath.Join(serverPath, "tests", importName)
+	importFilePath := filepath.Join(tests.GetPackagePath(), importName)
 	exportPath, err := filepath.Abs(filepath.Join(*s.th.App.Config().FileSettings.Directory,
 		*s.th.App.Config().ExportSettings.Directory))
 	s.Require().Nil(err)

server/cmd/mmctl/commands/extract_e2e_test.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/mattermost/mattermost/server/v8/cmd/mmctl/client"
 	"github.com/mattermost/mattermost/server/v8/cmd/mmctl/printer"
+	"github.com/mattermost/mattermost/server/v8/tests"
 
 	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/spf13/cobra"
@@ -18,9 +19,8 @@ import (
 
 func (s *MmctlE2ETestSuite) TestExtractRunCmdF() {
 	s.SetupTestHelper().InitBasic()
-	serverPath := os.Getenv("MM_SERVER_PATH")
 	docName := "sample-doc.pdf"
-	docFilePath := filepath.Join(serverPath, "tests", docName)
+	docFilePath := filepath.Join(tests.GetPackagePath(), docName)
 
 	s.Run("no permissions", func() {
 		printer.Clean()

server/cmd/mmctl/commands/import_e2e_test.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/mattermost/mattermost/server/v8/cmd/mmctl/client"
 	"github.com/mattermost/mattermost/server/v8/cmd/mmctl/printer"
+	"github.com/mattermost/mattermost/server/v8/tests"
 
 	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/spf13/cobra"
@@ -18,9 +19,8 @@ import (
 
 func (s *MmctlE2ETestSuite) TestImportUploadCmdF() {
 	s.SetupTestHelper().InitBasic()
-	serverPath := os.Getenv("MM_SERVER_PATH")
 	importName := "import_test.zip"
-	importFilePath := filepath.Join(serverPath, "tests", importName)
+	importFilePath := filepath.Join(tests.GetPackagePath(), importName)
 	info, err := os.Stat(importFilePath)
 	s.Require().NoError(err)
 
@@ -91,9 +91,8 @@ func (s *MmctlE2ETestSuite) TestImportUploadCmdF() {
 
 func (s *MmctlE2ETestSuite) TestImportProcessCmdF() {
 	s.SetupTestHelper().InitBasic()
-	serverPath := os.Getenv("MM_SERVER_PATH")
 	importName := "import_test.zip"
-	importFilePath := filepath.Join(serverPath, "tests", importName)
+	importFilePath := filepath.Join(tests.GetPackagePath(), "import_test.zip")
 
 	s.Run("no permissions", func() {
 		printer.Clean()
@@ -131,9 +130,8 @@ func (s *MmctlE2ETestSuite) TestImportProcessCmdF() {
 
 func (s *MmctlE2ETestSuite) TestImportListAvailableCmdF() {
 	s.SetupTestHelper().InitBasic()
-	serverPath := os.Getenv("MM_SERVER_PATH")
 	importName := "import_test.zip"
-	importFilePath := filepath.Join(serverPath, "tests", importName)
+	importFilePath := filepath.Join(tests.GetPackagePath(), importName)
 
 	s.Run("no permissions", func() {
 		printer.Clean()
@@ -372,9 +370,8 @@ func (s *MmctlE2ETestSuite) TestImportJobListCmdF() {
 func (s *MmctlE2ETestSuite) TestImportValidateCmdF() {
 	s.SetupTestHelper().InitBasic()
 
-	serverPath := os.Getenv("MM_SERVER_PATH")
 	importName := "import_test.zip"
-	importFilePath := filepath.Join(serverPath, "tests", importName)
+	importFilePath := filepath.Join(tests.GetPackagePath(), importName)
 
 	s.RunForSystemAdminAndLocal("defaults", func(c client.Client) {
 		printer.Clean()

server/cmd/mmctl/commands/plugin_e2e_test.go

@@ -5,7 +5,6 @@ package commands
 
 import (
 	"fmt"
-	"os"
 
 	"github.com/hashicorp/go-multierror"
 	"github.com/mattermost/mattermost/server/public/model"
@@ -17,12 +16,13 @@ import (
 
 	"github.com/mattermost/mattermost/server/v8/cmd/mmctl/client"
 	"github.com/mattermost/mattermost/server/v8/cmd/mmctl/printer"
+	"github.com/mattermost/mattermost/server/v8/tests"
 )
 
 func (s *MmctlE2ETestSuite) TestPluginAddCmd() {
 	s.SetupTestHelper().InitBasic()
 
-	pluginPath := filepath.Join(os.Getenv("MM_SERVER_PATH"), "tests", "testplugin.tar.gz")
+	pluginPath := filepath.Join(tests.GetPackagePath(), "testplugin.tar.gz")
 
 	s.RunForSystemAdminAndLocal("add an already installed plugin without force", func(c client.Client) {
 		printer.Clean()

server/platform/shared/templates/templates.go

@@ -7,7 +7,6 @@ import (
 	"bytes"
 	"html/template"
 	"io"
-	"os"
 	"path/filepath"
 	"sync"
 
@@ -33,12 +32,7 @@ type Data struct {
 }
 
 func GetTemplateDirectory() (string, bool) {
-	templatesDir := "templates"
+	return fileutils.FindDir("templates")
-	if mattermostPath := os.Getenv("MM_SERVER_PATH"); mattermostPath != "" {
-		templatesDir = filepath.Join(mattermostPath, templatesDir)
-	}
-
-	return fileutils.FindDir(templatesDir)
 }
 
 // NewFromTemplates creates a new templates container using a

server/public/utils/fileutils.go

@@ -17,11 +17,6 @@ func CommonBaseSearchPaths() []string {
 		"../../../..",
 	}
 
-	// this enables the server to be used in tests from a different repository
-	if mmPath := os.Getenv("MM_SERVER_PATH"); mmPath != "" {
-		paths = append(paths, mmPath)
-	}
-
 	return paths
 }
 

server/tests/path.go

@@ -0,0 +1,18 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package tests
+
+import (
+	"path/filepath"
+	"runtime"
+)
+
+// GetPackagePath returns the filepath to this package for use in tests that need to read data here.
+func GetPackagePath() string {
+	// Find the path to this file
+	_, filename, _, _ := runtime.Caller(0)
+
+	// Return the containing directory
+	return filepath.Dir(filename)
+}