Expose public/ API as submodule (#23345)

* model -> public/model

* plugin -> public/plugin

* public/model/utils -> public/utils

* platform/shared/mlog -> public/shared/mlog

* platform/shared/i18n -> public/shared/i18n

* platform/shared/markdown -> public/shared/markdown

* platform/services/timezones -> public/shared/timezones

* channels/einterfaces -> einterfaces

* expose public/ submodule

* go mod tidy

* .github: cache-dependency-path, setup-go-work

* modules-tidy for public/ too

* remove old gomodtidy

server/public/plugin/utils/test_files_compiler.go

@@ -0,0 +1,73 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package utils
+
+import (
+	"bytes"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func CompileGo(t *testing.T, sourceCode, outputPath string) {
+	dir, err := os.MkdirTemp(".", "")
+	require.NoError(t, err)
+	defer os.RemoveAll(dir)
+
+	dir, err = filepath.Abs(dir)
+	require.NoError(t, err)
+
+	// Write out main.go given the source code.
+	main := filepath.Join(dir, "main.go")
+	err = os.WriteFile(main, []byte(sourceCode), 0600)
+	require.NoError(t, err)
+
+	_, sourceFile, _, ok := runtime.Caller(0)
+	require.True(t, ok)
+	serverPath := filepath.Dir(filepath.Dir(sourceFile))
+
+	out := &bytes.Buffer{}
+	cmd := exec.Command("go", "build", "-o", outputPath, main)
+	cmd.Dir = serverPath
+	cmd.Stdout = out
+	cmd.Stderr = out
+	err = cmd.Run()
+	if err != nil {
+		t.Log("Go compile errors:\n", out.String())
+	}
+	require.NoError(t, err, "failed to compile go")
+}
+
+func CompileGoTest(t *testing.T, sourceCode, outputPath string) {
+	dir, err := os.MkdirTemp(".", "")
+	require.NoError(t, err)
+	defer os.RemoveAll(dir)
+
+	dir, err = filepath.Abs(dir)
+	require.NoError(t, err)
+
+	// Write out main.go given the source code.
+	main := filepath.Join(dir, "main_test.go")
+	err = os.WriteFile(main, []byte(sourceCode), 0600)
+	require.NoError(t, err)
+
+	_, sourceFile, _, ok := runtime.Caller(0)
+	require.True(t, ok)
+	serverPath := filepath.Dir(filepath.Dir(sourceFile))
+
+	out := &bytes.Buffer{}
+	cmd := exec.Command("go", "test", "-c", "-o", outputPath, main)
+	cmd.Dir = serverPath
+	cmd.Stdout = out
+	cmd.Stderr = out
+	err = cmd.Run()
+	if err != nil {
+		t.Log("Go compile errors:\n", out.String())
+	}
+	require.NoError(t, err, "failed to compile go")
+}