[MM-232] Update plugin with respect to phase 1 upgrades

.gitattributes

@@ -0,0 +1 @@
+server/manifest.go linguist-generated=true

.gitignore

@@ -1 +1,2 @@
 dist
+server/manifest.go

.nvmrc

@@ -1 +1 @@
-14.21.1
+16.13.1

Makefile

@@ -1,17 +1,28 @@
 GO ?= $(shell command -v go 2> /dev/null)
 NPM ?= $(shell command -v npm 2> /dev/null)
 CURL ?= $(shell command -v curl 2> /dev/null)
-MANIFEST_FILE ?= plugin.json
+MM_DEBUG ?=
 GOPATH ?= $(shell go env GOPATH)
 GO_TEST_FLAGS ?= -race
 GO_BUILD_FLAGS ?=
 MM_UTILITIES_DIR ?= ../mattermost-utilities
+DLV_DEBUG_PORT := 2346
+DEFAULT_GOOS := $(shell go env GOOS)
+DEFAULT_GOARCH := $(shell go env GOARCH)
 
 export GO111MODULE=on
 
+# We need to export GOBIN to allow it to be set
+# for processes spawned from the Makefile
+export GOBIN ?= $(PWD)/bin
+
 # You can include assets this directory into the bundle. This can be e.g. used to include profile pictures.
 ASSETS_DIR ?= assets
 
+## Define the default target (make all)
+.PHONY: default
+default: all
+
 # Verify environment, and define PLUGIN_ID, PLUGIN_VERSION, HAS_SERVER and HAS_WEBAPP as needed.
 include build/setup.mk
 
@@ -22,120 +33,195 @@ ifneq ($(wildcard build/custom.mk),)
 	include build/custom.mk
 endif
 
+ifneq ($(MM_DEBUG),)
+	GO_BUILD_GCFLAGS = -gcflags "all=-N -l"
+else
+	GO_BUILD_GCFLAGS =
+endif
+
 ## Checks the code style, tests, builds and bundles the plugin.
+.PHONY: all
 all: check-style test dist
 
-## Propagates plugin manifest information into the server/ and webapp/ folders as required.
+## Propagates plugin manifest information into the server/ and webapp/ folders.
 .PHONY: apply
 apply:
 	./build/bin/manifest apply
 
-## Runs golangci-lint and eslint.
+## Install go tools
+install-go-tools:
+	@echo Installing go tools
+	$(GO) install github.com/golangci/golangci-lint/cmd/[email protected]
+	$(GO) install gotest.tools/[email protected]
+
+## Runs eslint and golangci-lint
 .PHONY: check-style
-check-style: webapp/.npminstall golangci-lint
+check-style: apply webapp/node_modules install-go-tools
 	@echo Checking for style guide compliance
 
 ifneq ($(HAS_WEBAPP),)
 	cd webapp && npm run lint
+	cd webapp && npm run check-types
 endif
 
-## Run golangci-lint on codebase.
-.PHONY: golangci-lint
-golangci-lint:
-	@if ! [ -x "$$(command -v golangci-lint)" ]; then \
-		echo "golangci-lint is not installed. Please see https://github.com/golangci/golangci-lint#install for installation instructions."; \
-		exit 1; \
-	fi; \
-
+# It's highly recommended to run go-vet first
+# to find potential compile errors that could introduce
+# weird reports at golangci-lint step
+ifneq ($(HAS_SERVER),)
 	@echo Running golangci-lint
-	golangci-lint run ./...
+	$(GO) vet ./...
+	$(GOBIN)/golangci-lint run ./...
+endif
 
-## Builds the server, if it exists, including support for multiple architectures.
+## Builds the server, if it exists, for all supported architectures, unless MM_SERVICESETTINGS_ENABLEDEVELOPER is set.
 .PHONY: server
 server:
 ifneq ($(HAS_SERVER),)
+ifneq ($(MM_DEBUG),)
+	$(info DEBUG mode is on; to disable, unset MM_DEBUG)
+endif
 	mkdir -p server/dist;
-	cd server && env GOOS=linux GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) -o dist/plugin-linux-amd64;
-	cd server && env GOOS=darwin GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) -o dist/plugin-darwin-amd64;
-	cd server && env GOOS=windows GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) -o dist/plugin-windows-amd64.exe;
+ifneq ($(MM_SERVICESETTINGS_ENABLEDEVELOPER),)
+	@echo Building plugin only for $(DEFAULT_GOOS)-$(DEFAULT_GOARCH) because MM_SERVICESETTINGS_ENABLEDEVELOPER is enabled
+	cd server && env CGO_ENABLED=0 $(GO) build $(GO_BUILD_FLAGS) $(GO_BUILD_GCFLAGS) -trimpath -o dist/plugin-$(DEFAULT_GOOS)-$(DEFAULT_GOARCH);
+else
+	cd server && env CGO_ENABLED=0 GOOS=linux GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) $(GO_BUILD_GCFLAGS) -trimpath -o dist/plugin-linux-amd64;
+	cd server && env CGO_ENABLED=0 GOOS=linux GOARCH=arm64 $(GO) build $(GO_BUILD_FLAGS) $(GO_BUILD_GCFLAGS) -trimpath -o dist/plugin-linux-arm64;
+	cd server && env CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) $(GO_BUILD_GCFLAGS) -trimpath -o dist/plugin-darwin-amd64;
+	cd server && env CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 $(GO) build $(GO_BUILD_FLAGS) $(GO_BUILD_GCFLAGS) -trimpath -o dist/plugin-darwin-arm64;
+	cd server && env CGO_ENABLED=0 GOOS=windows GOARCH=amd64 $(GO) build $(GO_BUILD_FLAGS) $(GO_BUILD_GCFLAGS) -trimpath -o dist/plugin-windows-amd64.exe;
+endif
 endif
 
 ## Ensures NPM dependencies are installed without having to run this all the time.
-webapp/.npminstall:
+webapp/node_modules: $(wildcard webapp/package.json)
 ifneq ($(HAS_WEBAPP),)
 	cd webapp && $(NPM) install
 	touch $@
 endif
 
 ## Builds the webapp, if it exists.
 .PHONY: webapp
-webapp: webapp/.npminstall
+webapp: webapp/node_modules
 ifneq ($(HAS_WEBAPP),)
+ifeq ($(MM_DEBUG),)
 	cd webapp && $(NPM) run build;
+else
+	cd webapp && $(NPM) run debug;
 endif
-
-## Builds the webapp in debug mode, if it exists.
-.PHONY: webapp-debug
-webapp-debug: webapp/.npminstall
-ifneq ($(HAS_WEBAPP),)
-	cd webapp && \
-	$(NPM) run debug;
 endif
 
 ## Generates a tar bundle of the plugin for install.
 .PHONY: bundle
 bundle:
 	rm -rf dist/
 	mkdir -p dist/$(PLUGIN_ID)
-	cp $(MANIFEST_FILE) dist/$(PLUGIN_ID)/
+	./build/bin/manifest dist
 ifneq ($(wildcard $(ASSETS_DIR)/.),)
 	cp -r $(ASSETS_DIR) dist/$(PLUGIN_ID)/
 endif
 ifneq ($(HAS_PUBLIC),)
-	cp -r public/ dist/$(PLUGIN_ID)/
+	cp -r public dist/$(PLUGIN_ID)/
 endif
 ifneq ($(HAS_SERVER),)
-	mkdir -p dist/$(PLUGIN_ID)/server/dist;
-	cp -r server/dist/* dist/$(PLUGIN_ID)/server/dist/;
+	mkdir -p dist/$(PLUGIN_ID)/server
+	cp -r server/dist dist/$(PLUGIN_ID)/server/
 endif
 ifneq ($(HAS_WEBAPP),)
-	mkdir -p dist/$(PLUGIN_ID)/webapp/dist;
-	cp -r webapp/dist/* dist/$(PLUGIN_ID)/webapp/dist/;
+	mkdir -p dist/$(PLUGIN_ID)/webapp
+	cp -r webapp/dist dist/$(PLUGIN_ID)/webapp/
 endif
 	cd dist && tar -cvzf $(BUNDLE_NAME) $(PLUGIN_ID)
 
 	@echo plugin built at: dist/$(BUNDLE_NAME)
 
 ## Builds and bundles the plugin.
 .PHONY: dist
-dist:	apply server webapp bundle
+dist: apply server webapp bundle
 
-## Installs the plugin to a (development) server.
-## It uses the API if appropriate environment variables are defined,
-## and otherwise falls back to trying to copy the plugin to a sibling mattermost-server directory.
+## Builds and installs the plugin to a server.
 .PHONY: deploy
 deploy: dist
-	./build/bin/deploy $(PLUGIN_ID) dist/$(BUNDLE_NAME)
+	./build/bin/pluginctl deploy $(PLUGIN_ID) dist/$(BUNDLE_NAME)
+
+## Builds and installs the plugin to a server, updating the webapp automatically when changed.
+.PHONY: watch
+watch: apply server bundle
+ifeq ($(MM_DEBUG),)
+	cd webapp && $(NPM) run build:watch
+else
+	cd webapp && $(NPM) run debug:watch
+endif
 
-.PHONY: debug-deploy
-debug-deploy: debug-dist deploy
+## Installs a previous built plugin with updated webpack assets to a server.
+.PHONY: deploy-from-watch
+deploy-from-watch: bundle
+	./build/bin/pluginctl deploy $(PLUGIN_ID) dist/$(BUNDLE_NAME)
 
-.PHONY: debug-dist
-debug-dist: apply server webapp-debug bundle
+## Setup dlv for attaching, identifying the plugin PID for other targets.
+.PHONY: setup-attach
+setup-attach:
+	$(eval PLUGIN_PID := $(shell ps aux | grep "plugins/${PLUGIN_ID}" | grep -v "grep" | awk -F " " '{print $$2}'))
+	$(eval NUM_PID := $(shell echo -n ${PLUGIN_PID} | wc -w))
+
+	@if [ ${NUM_PID} -gt 2 ]; then \
+		echo "** There is more than 1 plugin process running. Run 'make kill reset' to restart just one."; \
+		exit 1; \
+	fi
+
+## Check if setup-attach succeeded.
+.PHONY: check-attach
+check-attach:
+	@if [ -z ${PLUGIN_PID} ]; then \
+		echo "Could not find plugin PID; the plugin is not running. Exiting."; \
+		exit 1; \
+	else \
+		echo "Located Plugin running with PID: ${PLUGIN_PID}"; \
+	fi
+
+## Attach dlv to an existing plugin instance.
+.PHONY: attach
+attach: setup-attach check-attach
+	dlv attach ${PLUGIN_PID}
+
+## Attach dlv to an existing plugin instance, exposing a headless instance on $DLV_DEBUG_PORT.
+.PHONY: attach-headless
+attach-headless: setup-attach check-attach
+	dlv attach ${PLUGIN_PID} --listen :$(DLV_DEBUG_PORT) --headless=true --api-version=2 --accept-multiclient
+
+## Detach dlv from an existing plugin instance, if previously attached.
+.PHONY: detach
+detach: setup-attach
+	@DELVE_PID=$(shell ps aux | grep "dlv attach ${PLUGIN_PID}" | grep -v "grep" | awk -F " " '{print $$2}') && \
+	if [ "$$DELVE_PID" -gt 0 ] > /dev/null 2>&1 ; then \
+		echo "Located existing delve process running with PID: $$DELVE_PID. Killing." ; \
+		kill -9 $$DELVE_PID ; \
+	fi
 
 ## Runs any lints and unit tests defined for the server and webapp, if they exist.
 .PHONY: test
-test: webapp/.npminstall
+test: apply webapp/node_modules install-go-tools
 ifneq ($(HAS_SERVER),)
-	$(GO) test -v $(GO_TEST_FLAGS) ./server/...
+	$(GOBIN)/gotestsum -- -v ./...
 endif
 ifneq ($(HAS_WEBAPP),)
-	cd webapp && $(NPM) run fix && $(NPM) run test;
+	cd webapp && $(NPM) run test;
+endif
+
+## Runs any lints and unit tests defined for the server and webapp, if they exist, optimized
+## for a CI environment.
+.PHONY: test-ci
+test-ci: apply webapp/node_modules install-go-tools
+ifneq ($(HAS_SERVER),)
+	$(GOBIN)/gotestsum --format standard-verbose --junitfile report.xml -- ./...
+endif
+ifneq ($(HAS_WEBAPP),)
+	cd webapp && $(NPM) run test;
 endif
 
 ## Creates a coverage report for the server code.
 .PHONY: coverage
-coverage: webapp/.npminstall
+coverage: apply webapp/node_modules
 ifneq ($(HAS_SERVER),)
 	$(GO) test $(GO_TEST_FLAGS) -coverprofile=server/coverage.txt ./server/...
 	$(GO) tool cover -html=server/coverage.txt
@@ -152,6 +238,31 @@ else
 endif
 endif
 
+## Disable the plugin.
+.PHONY: disable
+disable: detach
+	./build/bin/pluginctl disable $(PLUGIN_ID)
+
+## Enable the plugin.
+.PHONY: enable
+enable:
+	./build/bin/pluginctl enable $(PLUGIN_ID)
+
+## Reset the plugin, effectively disabling and re-enabling it on the server.
+.PHONY: reset
+reset: detach
+	./build/bin/pluginctl reset $(PLUGIN_ID)
+
+## Kill all instances of the plugin, detaching any existing dlv instance.
+.PHONY: kill
+kill: detach
+	$(eval PLUGIN_PID := $(shell ps aux | grep "plugins/${PLUGIN_ID}" | grep -v "grep" | awk -F " " '{print $$2}'))
+
+	@for PID in ${PLUGIN_PID}; do \
+		echo "Killing plugin pid $$PID"; \
+		kill -9 $$PID; \
+	done; \
+
 ## Clean removes all build artifacts.
 .PHONY: clean
 clean:
@@ -161,13 +272,20 @@ ifneq ($(HAS_SERVER),)
 	rm -fr server/dist
 endif
 ifneq ($(HAS_WEBAPP),)
-	rm -fr webapp/.npminstall
 	rm -fr webapp/junit.xml
 	rm -fr webapp/dist
 	rm -fr webapp/node_modules
 endif
 	rm -fr build/bin/
 
+.PHONY: logs
+logs:
+	./build/bin/pluginctl logs $(PLUGIN_ID)
+
+.PHONY: logs-watch
+logs-watch:
+	./build/bin/pluginctl logs-watch $(PLUGIN_ID)
+
 # Help documentation à la https://marmelab.com/blog/2016/02/29/auto-documented-makefile.html
 help:
-	@cat Makefile | grep -v '\.PHONY' |  grep -v '\help:' | grep -B1 -E '^[a-zA-Z0-9_.-]+:.*' | sed -e "s/:.*//" | sed -e "s/^## //" |  grep -v '\-\-' | sed '1!G;h;$$!d' | awk 'NR%2{printf "\033[36m%-30s\033[0m",$$0;next;}1' | sort
+	@cat Makefile build/*.mk | grep -v '\.PHONY' |  grep -v '\help:' | grep -B1 -E '^[a-zA-Z0-9_.-]+:.*' | sed -e "s/:.*//" | sed -e "s/^## //" |  grep -v '\-\-' | sed '1!G;h;$$!d' | awk 'NR%2{printf "\033[36m%-30s\033[0m",$$0;next;}1' | sort

README.md

@@ -28,7 +28,7 @@ In Mattermost 5.15 and earlier, follow these steps:
 
 ## Development
 
-Read our documentation about the [Developer Workflow](https://developers.mattermost.com/extend/plugins/developer-workflow/) and [Developer Setup](https://developers.mattermost.com/extend/plugins/developer-setup/) for more information about developing and extending plugins.
+This plugin contains a server portion only. Read our documentation about the [Developer Workflow](https://developers.mattermost.com/integrate/plugins/developer-workflow/) and [Developer Setup](https://developers.mattermost.com/integrate/plugins/developer-setup/) for more information about developing and extending plugins.
 
 Run `make memelibrary` to bundle up the meme assets (images, fonts, etc.).
 
@@ -37,3 +37,12 @@ For convenience, you can run the plugin from your terminal to preview an image f
 `go run server/plugin.go -out demo.jpg 'memes. memes everywhere' && open demo.jpg`
 
 This is especially useful when adding or modifying memes as you can quickly modify assets, `make memelibrary`, and preview the result using the above command. (See the files in ` memelibrary/assets` to get started with that.)
+
+### Releasing new versions
+
+The version of a plugin is determined at compile time, automatically populating a `version` field in the [plugin manifest](plugin.json):
+* If the current commit matches a tag, the version will match after stripping any leading `v`, e.g. `1.3.1`.
+* Otherwise, the version will combine the nearest tag with `git rev-parse --short HEAD`, e.g. `1.3.1+d06e53e1`.
+* If there is no version tag, an empty version will be combined with the short hash, e.g. `0.0.0+76081421`.
+
+To disable this behaviour, manually populate and maintain the `version` field.