Use go cross compile to build once with travis for all platforms

.travis.yml

@@ -7,7 +7,9 @@ go:
 addons:
   artifacts:
     paths:
-    - maputnik
+    - maputnik_linux
+    - maputnik_darwin
+    - maputnik_windows.exe
 install:
 - go get -u golang.org/x/sys/...
 - go get github.com/fsnotify/fsnotify
@@ -17,6 +19,7 @@ install:
 - go get github.com/urfave/cli
 - go get github.com/elazarl/go-bindata-assetfs/...
 - go get github.com/jteeuwen/go-bindata/...
+- go get github.com/mitchellh/gox
 - wget https://raw.githubusercontent.com/openmaptiles/klokantech-basic-gl-style/master/style.json
 script:
 - make

Makefile

@@ -6,7 +6,7 @@ EDITOR_VERSION ?= v1.5.0
 all: $(BINARY)
 
 $(BINARY): $(SOURCES) bindata_assetfs.go
-	go build -o ${BINARY}
+	gox -osarch "windows/amd64 linux/amd64 darwin/amd64" -output "${BINARY}_{{.OS}}"
 
 editor/create_folder:
 	mkdir -p editor
@@ -19,4 +19,4 @@ bindata_assetfs.go: editor/pull_release
 
 .PHONY: clean
 clean:
-	rm -rf editor/public && rm -f bindata.go && rm -f bindata_assetfs.go && rm -f maputnik
+	rm -rf editor/public && rm -f bindata.go && rm -f bindata_assetfs.go && rm -f maputnik_*

README.md

@@ -54,11 +54,10 @@ maputnik --watch --file basic-v9.json
 
 ### Build
 
-Clone the repository **recursively** since the Maputnik editor is embedded
-as submodule. Make sure you clone it into the correct directory `$GOPATH/src/github.com/maputnik`.
+Clone the repository. Make sure you clone it into the correct directory `$GOPATH/src/github.com/maputnik`.
 
 ```
-git clone --recursive git@github.com:maputnik/desktop.git
+git clone git@github.com:maputnik/desktop.git
 ```
 
 Install the 3rd party dependencies.
@@ -72,6 +71,7 @@ go get github.com/fsnotify/fsnotify
 go get github.com/urfave/cli
 go get github.com/elazarl/go-bindata-assetfs/...
 go get github.com/jteeuwen/go-bindata/...
+go get github.com/mitchellh/gox
 ```
 
 Run `make` to build the app distribution bundle and create the `maputnik` binary

appveyor.yml

@@ -1,42 +0,0 @@
-# version format
-version: "{build}"
-
-# Operating system (build VM template)
-os: Windows Server 2012 R2
-
-clone_folder: c:\gopath\src\github.com\maputnik\desktop
-
-# environment variables
-environment:
-  GOPATH: c:\gopath
-  GO15VENDOREXPERIMENT: 1
-
-# scripts that run after cloning repository
-install:
-- set PATH=%GOPATH%\bin;c:\go\bin;%PATH%
-- go version
-- go env
-- go get -u golang.org/x/sys/...
-- go get github.com/fsnotify/fsnotify
-- go get github.com/gorilla/handlers
-- go get github.com/gorilla/mux
-- go get github.com/gorilla/websocket
-- go get github.com/urfave/cli
-- go get github.com/elazarl/go-bindata-assetfs/...
-- go get github.com/jteeuwen/go-bindata/...
-- make
-
-# to run your custom scripts instead of automatic MSBuild
-build_script:
-- go vet ./...
-- gofmt -s -l .
-- C:\MinGW\bin\mingw32-make.exe
-
-artifacts:
-- path: maputnik
-
-# to disable automatic tests
-test: off
-
-# to disable deployment
-deploy: off