spanner-er

spanner-er is a command-line tool to generate ER diagram from DDL schama file.

Install

Install to host

spanner-er depends on graphviz. Install graphviz on your host platform.

brew install graphviz

or

apk add --no-cache graphviz ttf-freefont

or

apt-get update && apt-get install graphviz

Install spanner-er

go get -u github.com/nktks/spanner-er

Use docker

you can use docker image

docker run --rm -v `pwd`:/go/src/github.com/nktks/spanner-er --workdir="/go/src/github.com/nktks/spanner-er" ghcr.io/nktks/spanner-er -h

or

git clone git@github.com:nktks/spanner-er.git
cd ./spanner-er
./scripts/spanner-er-docker.sh -h

In this case, you should use relative path for -s, -o option.

Usage

spanner-er -h
Usage:
  -T string
    	output file type. default is png(pass to dot option -T) (default "png")
  -h	print help
  -o string
    	output file name.default is spanner_er.<type>(pass to dot option -o)
  -s string
    	spanner schema file

Sample image