Dockerfile: Upgrade to Go 1.13

Signed-off-by: Michael Mayer <michael@liquidbytes.net>

Dockerfile

@@ -1,4 +1,4 @@
-FROM photoprism/development:20190818
+FROM photoprism/development:20190919
 
 # Set up project directory
 WORKDIR "/go/src/github.com/photoprism/photoprism"

Makefile

@@ -25,6 +25,8 @@ start:
 	go run cmd/photoprism/photoprism.go start -d
 stop:
 	go run cmd/photoprism/photoprism.go stop
+terminal:
+	docker-compose exec photoprism bash
 migrate:
 	go run cmd/photoprism/photoprism.go migrate
 install-bin:

docker/development/Dockerfile

@@ -82,12 +82,12 @@ RUN npm install --unsafe-perm=true --allow-root -g npm testcafe chromedriver
 RUN npm config set cache ~/.cache/npm
 
 # Install Go
-ENV GOLANG_VERSION 1.12.7
+ENV GOLANG_VERSION 1.13
 RUN set -eux; \
 	\
 	url="https://golang.org/dl/go${GOLANG_VERSION}.linux-amd64.tar.gz"; \
 	wget -O go.tgz "$url"; \
-	echo "66d83bfb5a9ede000e33c6579a91a29e6b101829ad41fffb5c5bb6c900e109d9 *go.tgz" | sha256sum -c -; \
+	echo "68a2297eb099d1a76097905a2ce334e3155004ec08cdea85f24527be3c48e856 *go.tgz" | sha256sum -c -; \
 	tar -C /usr/local -xzf go.tgz; \
 	rm go.tgz; \
 	export PATH="/usr/local/go/bin:$PATH"; \

docker/photoprism/Dockerfile

@@ -1,4 +1,4 @@
-FROM photoprism/development:20190818 as build
+FROM photoprism/development:20190919 as build
 
 # Set up project directory
 WORKDIR "/go/src/github.com/photoprism/photoprism"

go.mod

@@ -68,3 +68,5 @@ require (
 	gopkg.in/mgo.v2 v2.0.0-20180705113604-9856a29383ce // indirect
 	gopkg.in/yaml.v2 v2.2.2
 )
+
+go 1.13