remove dsps directory for building

server/Dockerfile

@@ -3,7 +3,7 @@ ARG DSPS_VERSION_ID=""
 WORKDIR /go/src/github.com/dsps/server
 COPY . .
 RUN go install && go install github.com/Songmu/gocredits/cmd/gocredits
-RUN make dsps/dsps-$(uname -o | sed 's/GNU\///')-$(uname -m) && mv dsps/dsps-$(uname -o | sed 's/GNU\///')-$(uname -m) /dsps.bin
+RUN make dist/dsps-$(uname -o | sed 's/GNU\///')-$(uname -m) && mv dist/dsps-$(uname -o | sed 's/GNU\///')-$(uname -m) /dsps.bin
 
 FROM alpine:3.12.3
 # Add some utilities for convinience: gettext (contains envsubst), curl, jq

server/Makefile

@@ -1,6 +1,6 @@
 SHELL := /bin/bash
 
-release_dir = dsps
+release_dir = dist
 go_module_files = go.mod go.sum
 go_src_files = $(shell find . -type f -name '*.go')
 build_deps = $(go_module_files) $(go_src_files) | $(release_dir)
@@ -34,6 +34,9 @@ generate:
 	go install github.com/golang/mock/mockgen
 	go generate ./...
 
+$(release_dir):
+	mkdir -p $(release_dir)
+
 $(release_dir)/dsps-Linux-x86_64: $(build_deps)
 	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o $@ -ldflags "-X main.BuildDist=linux-amd64" -ldflags $(ldflags) main.go