Use custom SED_INPLACE

depending of platform detection

Author: sapk

Makefile

@@ -1,5 +1,18 @@
 DIST := dist
 IMPORT := code.gitea.io/gitea
+
+SED_INPLACE := sed -i
+
+ifeq ($(OS), Windows_NT)
+	EXECUTABLE := gitea.exe
+else
+	EXECUTABLE := gitea
+	UNAME_S := $(shell uname -s)
+	ifeq ($(UNAME_S),Darwin)
+		SED_INPLACE := sed -i ''
+	endif
+endif
+
 BINDATA := modules/{options,public,templates}/bindata.go
 STYLESHEETS := $(wildcard public/less/index.less public/less/_*.less)
 JAVASCRIPTS :=
@@ -66,11 +79,10 @@ generate-swagger:
 	@hash swagger > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
 		go get -u github.com/go-swagger/go-swagger/cmd/swagger; \
 	fi
-	swagger generate spec -o ./public/swagger.v1.tmp
-	sed "s;\".ref\": \"#/definitions/GPGKey\";\"type\": \"object\";g" ./public/swagger.v1.tmp > ./public/swagger.v1.tmp2
-	sed "s;^          \".ref\": \"#/definitions/Repository\";          \"type\": \"object\";g" ./public/swagger.v1.tmp2 > ./public/swagger.v1.json
-	rm ./public/swagger.v1.tmp ./public/swagger.v1.tmp2
-
+	swagger generate spec -o ./public/swagger.v1.json
+	$(SED_INPLACE) "s;\".ref\": \"#/definitions/GPGKey\";\"type\": \"object\";g" ./public/swagger.v1.json
+	$(SED_INPLACE) "s;^          \".ref\": \"#/definitions/Repository\";          \"type\": \"object\";g" ./public/swagger.v1.json
+	
 .PHONY: errcheck
 errcheck:
 	@hash errcheck > /dev/null 2>&1; if [ $$? -ne 0 ]; then \