Add circleci (eatonphil#9)

* Add .circleci/config.yml

* Add build step and go 1.14

* Test build failure

* Add circleci badge to readme

* Reset cmd/main.go

.circleci/config.yml

@@ -0,0 +1,13 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/golang:1.14
+
+    working_directory: /go/src/github.com/eatonphil/gosql
+    steps:
+      - checkout
+
+      - run: go get -v -t -d ./...
+      - run: go test -v ./...
+      - run: go build cmd/main.go

README.md

@@ -2,6 +2,8 @@
 
 An early PostgreSQL implementation in Go.
 
+[![gosql](https://circleci.com/gh/eatonphil/gosql.svg?style=svg)](https://circleci.com/gh/eatonphil/gosql)
+
 ## Example
 
 ```bash

cmd/main.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"io"
 	"os"
-	"strings"
 
 	"github.com/eatonphil/gosql"
 
@@ -101,11 +100,6 @@ repl:
 			continue repl
 		}
 
-		trimmedLine := strings.TrimRight(line, " ")
-		if trimmedLine == "quit" || trimmedLine == "exit" || strings.TrimLeft(trimmedLine, " ") == "\\q" {
-			break
-		}
-
 		ast, err := gosql.Parse(line)
 		if err != nil {
 			fmt.Println("Error while parsing:", err)
@@ -120,12 +114,6 @@ repl:
 					fmt.Println("Error creating table", err)
 					continue repl
 				}
-			case gosql.DropTableKind:
-				err = mb.DropTable(ast.Statements[0].DropTableStatement)
-				if err != nil {
-					fmt.Println("Error dropping table", err)
-					continue repl
-				}
 			case gosql.InsertKind:
 				err = mb.Insert(stmt.InsertStatement)
 				if err != nil {