go: Fix build; move to modern go install cmd

Dockerfile

@@ -6,7 +6,7 @@ COPY assets/ ./assets/
 RUN npm install && NODE_ENV=production ./node_modules/gulp/bin/gulp.js
 
 FROM golang:latest AS binarybuilder
-RUN go get -u github.com/gobuffalo/packr/packr
+RUN go install github.com/gobuffalo/packr/packr@latest
 WORKDIR /go/src/github.com/usefathom/fathom
 COPY . /go/src/github.com/usefathom/fathom
 COPY --from=assetbuilder /app/assets/build ./assets/build

Makefile

@@ -16,11 +16,11 @@ $(EXECUTABLE): $(GO_SOURCES) assets/build
 	go build -o $@ $(MAIN_PKG)
 
 .PHONY: docker
-docker: $(GO_SOURCES) 
+docker: $(GO_SOURCES) $(GOPATH)/bin/packr
 	GOOS=linux GOARCH=amd64 $(GOPATH)/bin/packr build -v -ldflags '-w $(LDFLAGS)' -o $(EXECUTABLE) $(MAIN_PKG)
 
 $(GOPATH)/bin/packr:
-	GOBIN=$(GOPATH)/bin go get -u github.com/gobuffalo/packr/packr
+	GOBIN=$(GOPATH)/bin go install github.com/gobuffalo/packr/packr@latest
 
 .PHONY: npm 
 npm:
@@ -35,7 +35,7 @@ assets/dist: $(ASSET_SOURCES) npm
 .PHONY: clean
 clean:
 	go clean -i ./...
-	packr clean
+	$(GOPATH)/bin/packr clean
 	rm -rf $(EXECUTABLE)
 
 .PHONY: fmt
@@ -49,14 +49,14 @@ vet:
 .PHONY: errcheck
 errcheck:
 	@which errcheck > /dev/null; if [ $$? -ne 0 ]; then \
-		go get -u github.com/kisielk/errcheck; \
+		go install github.com/kisielk/errcheck@latest; \
 	fi
 	errcheck $(PACKAGES)
 
 .PHONY: lint
 lint:
 	@which golint > /dev/null; if [ $$? -ne 0 ]; then \
-		go get -u github.com/golang/lint/golint; \
+		go install github.com/golang/lint/golint@latest; \
 	fi
 	for PKG in $(PACKAGES); do golint -set_exit_status $$PKG || exit 1; done;
 

go.mod

@@ -23,8 +23,13 @@ require (
 
 require (
 	github.com/gorilla/securecookie v1.1.2-0.20180608144417-78f3d318a8bf // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/pkg/errors v0.8.1-0.20180311214515-816c9085562c // indirect
+	github.com/spf13/cobra v0.0.3 // indirect
+	github.com/spf13/pflag v1.0.2 // indirect
 	github.com/ziutek/mymysql v1.5.5-0.20171217234033-ff6cc86d3d93 // indirect
+	golang.org/x/net v0.0.0-20180921000356-2f5d2388922f // indirect
+	golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f // indirect
 	golang.org/x/sys v0.0.0-20180724212812-e072cadbbdc8 // indirect
 	google.golang.org/appengine v1.1.0 // indirect
 	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect

go.sum

@@ -16,6 +16,7 @@ github.com/gorilla/securecookie v1.1.2-0.20180608144417-78f3d318a8bf h1:tgJ+TrHb
 github.com/gorilla/securecookie v1.1.2-0.20180608144417-78f3d318a8bf/go.mod h1:ra0sb63/xPlUeL+yeDciTfxMRAA+MP+HVt/4epWDjd4=
 github.com/gorilla/sessions v1.1.1 h1:YMDmfaK68mUixINzY/XjscuJ47uXFWSSHzFbBQM0PrE=
 github.com/gorilla/sessions v1.1.1/go.mod h1:8KCfur6+4Mqcc6S0FEfKuN15Vl5MgXW92AE8ovaJD0w=
+github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/jmoiron/sqlx v1.2.1-0.20181024163419-82935fac6c1a h1:7F1aETmIWwSQAv4S2415VrWj9eJyxR3epEEb6O5isgA=
 github.com/jmoiron/sqlx v1.2.1-0.20181024163419-82935fac6c1a/go.mod h1:1FEQNm3xlJgrMD+FBdI9+xvCksHtbpVBBw5dYhBSsks=
@@ -47,7 +48,9 @@ github.com/rubenv/sql-migrate v0.0.0-20180704111356-3f452fc0ebeb h1:lAOy8O8yKU3u
 github.com/rubenv/sql-migrate v0.0.0-20180704111356-3f452fc0ebeb/go.mod h1:WS0rl9eEliYI8DPnr3TOwz4439pay+qNgzJoVya/DmY=
 github.com/sirupsen/logrus v1.0.7-0.20180723115307-c108f5553c36 h1:NvBdWUXstAlJwU7RjOTudVgMj5N/NTYKJxwoJN5+0XY=
 github.com/sirupsen/logrus v1.0.7-0.20180723115307-c108f5553c36/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
+github.com/spf13/cobra v0.0.3 h1:ZlrZ4XsMRm04Fr5pSFxBgfND2EBVa1nLpiy1stUsX/8=
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
+github.com/spf13/pflag v1.0.2 h1:Fy0orTDgHdbnzHcsOgfCN4LtHf0ec3wwtiwJqwvf3Gc=
 github.com/spf13/pflag v1.0.2/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
@@ -57,7 +60,9 @@ github.com/ziutek/mymysql v1.5.5-0.20171217234033-ff6cc86d3d93 h1:neEPpeeJDl7Rs0
 github.com/ziutek/mymysql v1.5.5-0.20171217234033-ff6cc86d3d93/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0=
 golang.org/x/crypto v0.0.0-20180723164146-c126467f60eb h1:Ah9YqXLj6fEgeKqcmBuLCbAsrF3ScD7dJ/bYM0C6tXI=
 golang.org/x/crypto v0.0.0-20180723164146-c126467f60eb/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/net v0.0.0-20180921000356-2f5d2388922f h1:QM2QVxvDoW9PFSPp/zy9FgxJLfaWTZlS61KEPtBwacM=
 golang.org/x/net v0.0.0-20180921000356-2f5d2388922f/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180724212812-e072cadbbdc8 h1:7T3bTJEttnfJdEY+NY/VYT7IXRaul8potWiyw/n7LB8=
 golang.org/x/sys v0.0.0-20180724212812-e072cadbbdc8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=