[WIP] Make Makefile crossplatform

Makefile

@@ -1,24 +1,109 @@
 #!/usr/bin/env gmake -f
 
 GOOPTS=CGO_ENABLED=0
-BUILDOPTS=-ldflags="-s -w" -a -gcflags=all=-l -trimpath
+BUILDOPTS=-ldflags="-s -w" -a -gcflags=all=-l -trimpath -buildvcs=false
+MYNAME1=aleesa-telegram-go
+BINARY1=${MYNAME1}
+UNIX_BINARY1=${MYNAME1}
+WINDOWS_BINARY1=${MYNAME1}.exe
+MYNAME2=settings-migrator
+BINARY2=${MYNAME2}
+UNIX_BINARY2=${MYNAME2}
+WINDOWS_BINARY2=${MYNAME2}.exe
+RMCMD=rm -rf
+
+# On windows binary name can depend not only on platform selected, but target too, we need no .exe suffix for linux bin.
+ifeq ($(OS),Windows_NT)
+ifdef GOOS
+ifeq ($(GOOS),windows)
+BINARY1=${WINDOWS_BINARY1}
+BINARY2=${WINDOWS_BINARY2}
+else  # not ifeq ($(GOOS),windows)
+BINARY1=${MYNAME1}
+BINARY2=${MYNAME2}
+endif # ifeq ($(GOOS),windows)
+else  # not ifdef GOOS
+BINARY1=${WINDOWS_BINARY1}
+BINARY2=${WINDOWS_BINARY2}
+endif # ifdef GOOS
+ifeq ($(SHELL), sh.exe)
+RMCMD=DEL /Q /F
+endif
+endif
+
+# Set newline symbol explicitly to aboud undefined behaviour in windows.
+define IFS
+
+endef
+
 
 all: clean build
 
+
 build:
-	${GOOPTS} go build ${BUILDOPTS} -o aleesa-telegram-go ./cmd/aleesa-telegram-go
+ifeq ($(OS),Windows_NT)
+# Looks like on windows gnu make explicitly set SHELL to sh.exe, if it was not set.
+ifeq ($(SHELL), sh.exe)
+#       # Vanilla cmd.exe / powershell.
+	SET "CGO_ENABLED=0"
+	go build ${BUILDOPTS} -o ${BINARY1} ./cmd/${MYNAME1}
+else ifeq (,$(findstring(Git/usr/bin/sh.exe, $(SHELL))))
+#       # git-bash
+	CGO_ENABLED=0 go build ${BUILDOPTS} -o ${BINARY1} ./cmd/${MYNAME1}
+else  # not ifeq (,$(findstring(Git/usr/bin/sh.exe, $(SHELL))))
+#       # Some other shell.
+#       # TODO: handle it.
+	$(info "-- Dunno how to handle this shell: ${SHELL}")
+endif # ifeq (,$(findstring(Git/usr/bin/sh.exe, $(SHELL))))
+else  # not  ($(OS),Windows_NT)
+	CGO_ENABLED=0 go build ${BUILDOPTS} -o ${BINARY1} ./cmd/${MYNAME1}
+endif # ifeq ($(OS),Windows_NT)
+
 
 clean:
-	rm -rf aleesa-telegram-go
-	rm -rf settings-migrator
+ifeq ($(OS),Windows_NT)
+ifeq ($(SHELL),sh.exe)
+#	# Vanilla cmd.exe / powershell.
+	if exist ${WINDOWS_BINARY1} ${RMCMD} ${WINDOWS_BINARY1}
+	if exist ${UNIX_BINARY1} ${RMCMD} ${UNIX_BINARY1}
+	if exist ${WINDOWS_BINARY2} ${RMCMD} ${WINDOWS_BINARY2}
+	if exist ${UNIX_BINARY2} ${RMCMD} ${UNIX_BINARY2}
+else  # not ifeq ($(SHELL),sh.exe)
+	${RMCMD} ./${WINDOWS_BINARY1}
+	${RMCMD} ./${UNIX_BINARY1}
+	${RMCMD} ./${WINDOWS_BINARY2}
+	${RMCMD} ./${UNIX_BINARY2}
+endif # ifeq ($(SHELL),sh.exe)
+else  # not ifeq ($(OS),Windows_NT)
+	${RMCMD} ./${UNIX_BINARY1}
+	${RMCMD} ./${UNIX_BINARY2}
+endif
+
 
 upgrade:
-	rm -rf vendor
-	go get -d -u -t ./...
+	go get -u ./...
 	go mod tidy
 	go mod vendor
 
-migrator:
-	${GOOPTS} go build ${BUILDOPTS} -o settings-migrator ./cmd/settings-migrator
+
+# Build settings-migrator binary.
+${MYNAME2}: clean
+ifeq ($(OS),Windows_NT)
+# Looks like on windows gnu make explicitly set SHELL to sh.exe, if it was not set.
+ifeq ($(SHELL), sh.exe)
+#       # Vanilla cmd.exe / powershell.
+	SET "CGO_ENABLED=0"
+	go build ${BUILDOPTS} -o ${WINDOWS_BINARY2} ./cmd/${MYNAME2}
+else ifeq (,$(findstring(Git/usr/bin/sh.exe, $(SHELL))))
+#       # git-bash
+	CGO_ENABLED=0 go build ${BUILDOPTS} -o ${WINDOWS_BINARY2} ./cmd/${MYNAME2}
+else  # not ifeq (,$(findstring(Git/usr/bin/sh.exe, $(SHELL))))
+#       # Some other shell.
+#       # TODO: handle it.
+	$(info "-- Dunno how to handle this shell: ${SHELL}")
+endif # ifeq (,$(findstring(Git/usr/bin/sh.exe, $(SHELL))))
+else  # not  ($(OS),Windows_NT)
+	CGO_ENABLED=0 go build ${BUILDOPTS} -o ${UNIX_BINARY2} ./cmd/${MYNAME2}
+endif # ifeq ($(OS),Windows_NT)
 
 # vim: set ft=make noet ai ts=4 sw=4 sts=4:

TODO.org

@@ -66,8 +66,8 @@
   - [ ] Написать перловый скрипт, сохраняющий настройки чатов в settings.json
   - [ ] Написать гошную программу для импорта настроек из settings.json в базу гошного бота
 
-* TODO Усложнить Makefile [0/1]
-  - [ ] сделать его его кроссплатформенным, по примеру других гошных приложений
+* DONE Усложнить Makefile [1/1]
+  - [X] сделать его его кроссплатформенным, по примеру других гошных приложений
 
 # -*- mode: org; -*-
 # vim: ft=org