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/Makefile

@@ -102,11 +102,11 @@ GOFLAGS ?= $(GOFLAGS:)
 export GOBIN ?= $(PWD)/bin
 GO=go
 DELVE=dlv
-LDFLAGS += -X "github.com/mattermost/mattermost-server/server/v8/model.BuildNumber=$(BUILD_NUMBER)"
-LDFLAGS += -X "github.com/mattermost/mattermost-server/server/v8/model.BuildDate=$(BUILD_DATE)"
-LDFLAGS += -X "github.com/mattermost/mattermost-server/server/v8/model.BuildHash=$(BUILD_HASH)"
-LDFLAGS += -X "github.com/mattermost/mattermost-server/server/v8/model.BuildHashEnterprise=$(BUILD_HASH_ENTERPRISE)"
-LDFLAGS += -X "github.com/mattermost/mattermost-server/server/v8/model.BuildEnterpriseReady=$(BUILD_ENTERPRISE_READY)"
+LDFLAGS += -X "github.com/mattermost/mattermost-server/server/public/model.BuildNumber=$(BUILD_NUMBER)"
+LDFLAGS += -X "github.com/mattermost/mattermost-server/server/public/model.BuildDate=$(BUILD_DATE)"
+LDFLAGS += -X "github.com/mattermost/mattermost-server/server/public/model.BuildHash=$(BUILD_HASH)"
+LDFLAGS += -X "github.com/mattermost/mattermost-server/server/public/model.BuildHashEnterprise=$(BUILD_HASH_ENTERPRISE)"
+LDFLAGS += -X "github.com/mattermost/mattermost-server/server/public/model.BuildEnterpriseReady=$(BUILD_ENTERPRISE_READY)"
 
 GO_MAJOR_VERSION = $(shell $(GO) version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f1)
 GO_MINOR_VERSION = $(shell $(GO) version | cut -c 14- | cut -d' ' -f1 | cut -d'.' -f2)
@@ -190,7 +190,7 @@ endif
 include config.mk
 include build/*.mk
 
-LDFLAGS += -X "github.com/mattermost/mattermost-server/server/v8/model.MockCWS=$(MM_ENABLE_CWS_MOCK)"
+LDFLAGS += -X "github.com/mattermost/mattermost-server/server/public/model.MockCWS=$(MM_ENABLE_CWS_MOCK)"
 
 RUN_IN_BACKGROUND ?=
 ifeq ($(RUN_SERVER_IN_BACKGROUND),true)
@@ -276,7 +276,7 @@ else
 endif
 
 plugin-checker:
-	$(GO) run $(GOFLAGS) ./plugin/checker
+	$(GO) run $(GOFLAGS) ./public/plugin/checker
 
 prepackaged-plugins: ## Populate the prepackaged-plugins directory
 	@echo Downloading prepackaged plugins
@@ -355,9 +355,9 @@ ldap-mocks: ## Creates mock files for ldap.
 
 plugin-mocks: ## Creates mock files for plugins.
 	$(GO) install github.com/vektra/mockery/v2/...@v2.23.2
-	$(GOBIN)/mockery --dir ./plugin --name API --output ./plugin/plugintest --outpkg plugintest --case underscore --note 'Regenerate this file using `make plugin-mocks`.'
-	$(GOBIN)/mockery --dir ./plugin --name Hooks --output ./plugin/plugintest --outpkg plugintest --case underscore --note 'Regenerate this file using `make plugin-mocks`.'
-	$(GOBIN)/mockery --dir ./plugin --name Driver --output ./plugin/plugintest --outpkg plugintest --case underscore --note 'Regenerate this file using `make plugin-mocks`.'
+	$(GOBIN)/mockery --dir ./public/plugin --name API --output ./public/plugin/plugintest --outpkg plugintest --case underscore --note 'Regenerate this file using `make plugin-mocks`.'
+	$(GOBIN)/mockery --dir ./public/plugin --name Hooks --output ./public/plugin/plugintest --outpkg plugintest --case underscore --note 'Regenerate this file using `make plugin-mocks`.'
+	$(GOBIN)/mockery --dir ./public/plugin --name Driver --output ./public/plugin/plugintest --outpkg plugintest --case underscore --note 'Regenerate this file using `make plugin-mocks`.'
 
 einterfaces-mocks: ## Creates mock files for einterfaces.
 	$(GO) install github.com/vektra/mockery/v2/...@v2.23.2
@@ -386,7 +386,7 @@ platform-mocks: ## Creates mocks for platform interfaces.
 	$(GOBIN)/mockery --dir channels/app/platform --name SuiteIFace --output channels/app/platform/mocks --note 'Regenerate this file using `make platform-mocks`.'
 
 pluginapi: ## Generates api and hooks glue code for plugins
-	$(GO) generate $(GOFLAGS) ./plugin
+	$(GO) generate $(GOFLAGS) ./public/plugin
 
 mocks: store-mocks telemetry-mocks filestore-mocks ldap-mocks plugin-mocks einterfaces-mocks searchengine-mocks sharedchannel-mocks misc-mocks email-mocks platform-mocks
 
@@ -404,7 +404,16 @@ endif
 
 setup-go-work: export BUILD_ENTERPRISE_READY := $(BUILD_ENTERPRISE_READY)
 setup-go-work: ## Sets up your go.work file
-	./scripts/setup_go_work.sh $(IGNORE_GO_WORK_IF_EXISTS)
+ifneq ($(IGNORE_GO_WORK_IF_EXISTS),true)
+	@echo "Creating a go.work file"
+	rm -f go.work
+	go work init
+	go work use .
+	go work use ./public
+ifeq ($(BUILD_ENTERPRISE_READY),true)
+	go work use ../../enterprise
+endif
+endif
 
 check-style: golangci-lint plugin-checker vet ## Runs style/lint checks
 
@@ -422,28 +431,12 @@ test-compile: ## Compile tests.
 		$(GO) test $(GOFLAGS) -c $$package; \
 	done
 
-gomodtidy:
-	@cp go.mod go.mod.orig
-	@cp go.sum go.sum.orig
-	@if [ -f "channels/imports/imports.go" ]; then \
-		mv channels/imports/imports.go channels/imports/imports.go.orig; \
-	fi;
-	$(GO) mod tidy
-	@if [ "$$(diff go.mod go.mod.orig)" != "" -o "$$(diff go.sum go.sum.orig)" != "" ]; then \
-		echo "go.mod/go.sum was modified. \ndiff- $$(diff go.mod go.mod.orig) \n$$(diff go.sum go.sum.orig) \nRun \"go mod tidy\"."; \
-		rm go.*.orig; \
-		exit 1; \
-	fi;
-	@if [ -f "channels/imports/imports.go.orig" ]; then \
-		mv channels/imports/imports.go.orig channels/imports/imports.go; \
-	fi;
-	@rm go.*.orig;
-
 modules-tidy:
 	@if [ -f "channels/imports/imports.go" ]; then \
 		mv channels/imports/imports.go channels/imports/imports.go.orig; \
 	fi;
 	-$(GO) mod tidy
+	-cd public && $(GO) mod tidy
 	@if [ -f "channels/imports/imports.go.orig" ]; then \
 		mv channels/imports/imports.go.orig channels/imports/imports.go; \
 	fi;
@@ -552,20 +545,20 @@ run-server: setup-go-work prepackaged-binaries validate-go-version start-docker
 debug-server: start-docker ## Compile and start server using delve.
 	mkdir -p $(BUILD_WEBAPP_DIR)/channels/dist/files
 	$(DELVE) debug $(PLATFORM_FILES) --build-flags="-ldflags '\
-		-X github.com/mattermost/mattermost-server/server/v8/model.BuildNumber=$(BUILD_NUMBER)\
-		-X \"github.com/mattermost/mattermost-server/server/v8/model.BuildDate=$(BUILD_DATE)\"\
-		-X github.com/mattermost/mattermost-server/server/v8/model.BuildHash=$(BUILD_HASH)\
-		-X github.com/mattermost/mattermost-server/server/v8/model.BuildHashEnterprise=$(BUILD_HASH_ENTERPRISE)\
-		-X github.com/mattermost/mattermost-server/server/v8/model.BuildEnterpriseReady=$(BUILD_ENTERPRISE_READY)'"
+		-X github.com/mattermost/mattermost-server/server/public/model.BuildNumber=$(BUILD_NUMBER)\
+		-X \"github.com/mattermost/mattermost-server/server/public/model.BuildDate=$(BUILD_DATE)\"\
+		-X github.com/mattermost/mattermost-server/server/public/model.BuildHash=$(BUILD_HASH)\
+		-X github.com/mattermost/mattermost-server/server/public/model.BuildHashEnterprise=$(BUILD_HASH_ENTERPRISE)\
+		-X github.com/mattermost/mattermost-server/server/public/model.BuildEnterpriseReady=$(BUILD_ENTERPRISE_READY)'"
 
 debug-server-headless: start-docker ## Debug server from within an IDE like VSCode or IntelliJ.
 	mkdir -p $(BUILD_WEBAPP_DIR)/channels/dist/files
 	$(DELVE) debug --headless --listen=:2345 --api-version=2 --accept-multiclient $(PLATFORM_FILES) --build-flags="-ldflags '\
-		-X github.com/mattermost/mattermost-server/server/v8/model.BuildNumber=$(BUILD_NUMBER)\
-		-X \"github.com/mattermost/mattermost-server/server/v8/model.BuildDate=$(BUILD_DATE)\"\
-		-X github.com/mattermost/mattermost-server/server/v8/model.BuildHash=$(BUILD_HASH)\
-		-X github.com/mattermost/mattermost-server/server/v8/model.BuildHashEnterprise=$(BUILD_HASH_ENTERPRISE)\
-		-X github.com/mattermost/mattermost-server/server/v8/model.BuildEnterpriseReady=$(BUILD_ENTERPRISE_READY)'"
+		-X github.com/mattermost/mattermost-server/server/public/model.BuildNumber=$(BUILD_NUMBER)\
+		-X \"github.com/mattermost/mattermost-server/server/public/model.BuildDate=$(BUILD_DATE)\"\
+		-X github.com/mattermost/mattermost-server/server/public/model.BuildHash=$(BUILD_HASH)\
+		-X github.com/mattermost/mattermost-server/server/public/model.BuildHashEnterprise=$(BUILD_HASH_ENTERPRISE)\
+		-X github.com/mattermost/mattermost-server/server/public/model.BuildEnterpriseReady=$(BUILD_ENTERPRISE_READY)'"
 
 run-cli: start-docker ## Runs CLI.
 	@echo Running mattermost for development
@@ -733,18 +726,18 @@ gen-serialized: ## Generates serialization methods for hot structs
 	# would be to temporarily move all the structs to the same file,
 	# but that involves a lot of manual work.
 	$(GO) install github.com/tinylib/msgp@v1.1.6
-	$(GOBIN)/msgp -file=./model/session.go -tests=false -o=./model/session_serial_gen.go
+	$(GOBIN)/msgp -file=./public/model/session.go -tests=false -o=./public/model/session_serial_gen.go
 	@echo "$$LICENSE_HEADER" > tmp.go
-	@cat ./model/session_serial_gen.go >> tmp.go
-	@mv tmp.go ./model/session_serial_gen.go
-	$(GOBIN)/msgp -file=./model/user.go -tests=false -o=./model/user_serial_gen.go
+	@cat ./public/model/session_serial_gen.go >> tmp.go
+	@mv tmp.go ./public/model/session_serial_gen.go
+	$(GOBIN)/msgp -file=./public/model/user.go -tests=false -o=./public/model/user_serial_gen.go
 	@echo "$$LICENSE_HEADER" > tmp.go
-	@cat ./model/user_serial_gen.go >> tmp.go
-	@mv tmp.go ./model/user_serial_gen.go
-	$(GOBIN)/msgp -file=./model/team_member.go -tests=false -o=./model/team_member_serial_gen.go
+	@cat ./public/model/user_serial_gen.go >> tmp.go
+	@mv tmp.go ./public/model/user_serial_gen.go
+	$(GOBIN)/msgp -file=./public/model/team_member.go -tests=false -o=./public/model/team_member_serial_gen.go
 	@echo "$$LICENSE_HEADER" > tmp.go
-	@cat ./model/team_member_serial_gen.go >> tmp.go
-	@mv tmp.go ./model/team_member_serial_gen.go
+	@cat ./public/model/team_member_serial_gen.go >> tmp.go
+	@mv tmp.go ./public/model/team_member_serial_gen.go
 
 todo: ## Display TODO and FIXME items in the source code.
 	@! ag --ignore Makefile --ignore-dir runtime '(TODO|XXX|FIXME|"FIX ME")[: ]+'