Scalar DB Schema Tool fails due to parser tool updates.

[KenYurino]

Scalar DB Schema Tools can not be "make".

The reason is that the IF of the Parser being used by the Tool has changed, and since there is an argument with no argument, an error occurs at make time.

■Error detail

$ cd tools/schema
$ make
go get github.com/alecthomas/kingpin
go get github.com/alecthomas/participle

1. _/home/ec2-user/scalardb/tools/schema/internal/parser
   internal/parser/parser.go:42:68: not enough arguments in call to participle.UseLookahead
   have ()
   want (int)
   make: *** エラー 2

■Parser Tool
https://github.com/alecthomas/participle

[scalarindetail]

The problem was caused because the parser library released an update that contained breaking changes (the coded was working with 1.0 but the 2.0 was released 20 days ago).

Libraries are imported with go-get but it does not allow to specify a version or a branch tag.

install:
	go get github.com/alecthomas/kingpin
	go get github.com/alecthomas/participle

To import the dependencies with fixed version, we could use a tool such as dep.
The make would become:

install:
        go get -u github.com/golang/dep/cmd/dep
        dep ensure (will download the library for the project)

[feeblefakie]

@yuriken27 I think this is now fixed with 74dba96 .
Can you check ?

[KenYurino]

I checked again and this problem was corrected.
Schema Tool works correctly.