Chore/ Add smoke test to CLI (#132)

* Use npm publish instead of yarn

* Switch CLI to use yarn

* Switch to cross-fetch

* Style fixes

* Adds test suite, updates docs, and makes some minor structural changes

* Add linting to cli

Jenkinsfile

@@ -17,17 +17,20 @@ pipeline {
     stage('Install') {
       steps {
         sh 'yarn'
+        sh 'yarn --cwd ./cli'
       }
     }
     stage('Validate Code Style') {
       steps {
         sh 'yarn lint'
+        sh 'yarn --cwd ./cli lint'
       }
     }
     stage('Test') {
       steps {
         sh 'yarn start:sample-stack --build -d'
         sh 'yarn test:e2e'
+        sh 'yarn --cwd ./cli test'
       }
       post {
         always {
@@ -67,8 +70,8 @@ pipeline {
         sh "docker tag inputoutput/cardano-graphql:${env.GIT_COMMIT} inputoutput/cardano-graphql:${env.TAG_NAME}"
         sh "docker push inputoutput/cardano-graphql:${env.TAG_NAME}"
         sh "npx npm-auth --secure-token=$NPM_REGISTRY_AUTH_USR --email=$NPM_REGISTRY_AUTH_PSW --registry=$NPM_REGISTRY_URI"
-        sh "yarn --cwd ./cli publish"
-        sh "yarn --cwd ./generated_packages/TypeScript publish"
+        sh "npm publish --cwd ./cli"
+        sh "npm publish publish --cwd ./generated_packages/TypeScript"
       }
       post {
         always {

cli/.gitignore

@@ -1,2 +1 @@
-dist
-docker-compose.yml
+bin

cli/README.md

@@ -1,6 +1,21 @@
 # Cardano GraphQL CLI
+## Global install from [npm](https://www.npmjs.com/package/cardano-graphql-cli)
 ```
-npm i -g 
+npm i -g cardano-graphql-cli
 cgql --help
 ```
-Also available on [npm](https://www.npmjs.com/package/cardano-graphql-cli)
+## Execute without installing using [npx](https://nodejs.dev/the-npx-nodejs-package-runner)
+```
+npx cardano-graphql-cli --help
+```
+## Build from source using yarn
+```
+yarn & yarn add-global
+cgql --help
+```
+Depending on your local environment, you may need to add the yarn global bin to your PATH. The 
+following command is useful for a single terminal session:
+```
+export PATH="$(yarn global bin):$PATH"
+cgql --help
+```

cli/jest.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+  "transform": {
+    "^.+\\.test.ts?$": "ts-jest"
+  },
+  preset: 'ts-jest'
+}