convert the .webp to .jpg|.bmp|.png|.gif|.tiff
golang.org/x/image/bmp
golang.org/x/image/tiff
golang.org/x/image/webp
gopkg.in/urfave/cli.v1
go get gopkg.in/urfave/cli.v1
git clone https://github.com/golang/image $GOPATH/src/golang.org/x/image
cd $GOPATH/src/golang.org/x/image/webp && go install
cd $GOPATH/src/golang.org/x/image/bmp && go install
cd $GOPATH/src/golang.org/x/image/tiff && go install
go get github.com/sndnvaps/webp2jpg
cd $GOPATH/src/github.com/sndnvaps/webp2jpg/cli
go build
put the test.webp file into webp2jpg folder
./webp2jpg -t jpg -s test.webp
./webp2jpg -t bmp -s test.webp
./webp2jpg --type jpg --source test.webp
./webp2jpg --type jpeg --source test.webp
./webp2jpg --type png --source test.webp
./webp2jpg --type gif --source test.webp
./webp2jpg --type tiff --source test.webp
./webp2jpg --type jpg --source test.png
./webp2jpg --type jpg --source test.gif
./webp2jpg --type jpg --source test.tiff