Merge pull request #1 from circleci/init

CIRCLE-11398: User can install CLI that will talk to registry

.gitignore

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+build/
+TODO

Gopkg.toml

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+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[[constraint]]
+  name = "github.com/machinebox/graphql"
+  branch = "master"
+
+[[constraint]]
+  name = "github.com/spf13/cobra"
+  version = "0.0.3"
+
+[[constraint]]
+  name = "github.com/spf13/viper"
+  version = "1.0.2"
+
+[prune]
+  go-tests = true
+  unused-packages = true

Makefile

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+VERSION=0.1
+DATE = $(shell date "+%FT%T%z")
+SHA=$(shell git rev-parse --short HEAD)
+
+GOFILES = $(shell find . -name '*.go' -not -path './vendor/*')
+
+CLIPATH=github.com/circleci/cli
+
+EXECUTABLE=cli
+BUILD_DIR=build
+
+.PHONY: build/linux
+$(BUILD_DIR)/%/amd64/$(EXECUTABLE): $(GOFILES)
+	GOOS=$* GOARCH=amd64 CGO_ENABLED=0 go build $(LDFLAGS) -o $(BUILD_DIR)/$*/amd64/$(EXECUTABLE) .
+
+.PHONY: build
+build: $(BUILD_DIR)/darwin/amd64/$(EXECUTABLE) $(BUILD_DIR)/linux/amd64/$(EXECUTABLE)
+
+.PHONY: clean
+clean:
+	go clean
+	rm -rf $(BUILD_DIR)
+
+.PHONY: test
+test:
+	go test -short ./...
+
+.PHONY: cover
+coverage:
+	go test -coverprofile=coverage.txt -covermode=count ./...

README.md

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+# circleci/cli
+
+Summary
+
+## Requirements
+
+* Go 1.9+
+* Make
+* ...
+
+It's written in Go. If you are new to Go, we recommend the following resources:
+
+* [A Tour of Go](https://tour.golang.org/welcome/1)
+* [The Go documentation](https://golang.org/doc/)
+
+## Development Workflow
+
+### 1. Go Dependencies
+
+Install `dep`:
+https://github.com/golang/dep
+
+On MacOS:
+
+```
+$ brew install dep
+$ brew upgrade dep
+```
+
+On Linux, etc:
+
+```
+$ curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+```
+
+Ensure dependencies are installed:
+
+```
+$ dep ensure
+```
+
+### 2. Build it
+
+```
+$ make
+```
+
+### 3. Run Diagnostic check
+
+```
+$ ./build/target/linux/amd64/cli diagnostic
+
+Please enter your CircleCI API token:
+OK.
+Your configuration has been created in `/home/zzak/.circleci/cli.yml`.
+It can edited manually for advanced settings.
+
+---
+CircleCI CLI Diagnostics
+---
+
+Config found: `/home/zzak/.circleci/cli.yml`
+Host is: https://circleci.com
+OK, got a token.
+```
+
+## Known Issues
+
+* ...
+
+## Doc
+
+You can view godoc of cli in your browser.
+
+1. Run `godoc -http=:6060`
+2. Access http://localhost:6060/pkg/github.com/circleci/cli/
+
+## Editor support
+
+Go has great tooling for editors.
+
+```
+$ go get golang.org/x/tools/cmd/goimports
+```
+
+More [here](https://blog.golang.org/go-fmt-your-code).

cmd/diagnostic.go

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+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var diagnosticCmd = &cobra.Command{
+	Use:   "diagnostic",
+	Short: "Check the status of your CircleCI CLI.",
+	Run:   diagnostic,
+}
+
+func diagnostic(cmd *cobra.Command, args []string) {
+	host := viper.GetString("host")
+	token := viper.GetString("token")
+
+	fmt.Printf("\n---\nCircleCI CLI Diagnostics\n---\n\n")
+	fmt.Printf("Config found: `%v`\n", viper.ConfigFileUsed())
+
+	if host == "host" || host == "" {
+		fmt.Println("Please set a host!")
+	} else {
+		fmt.Printf("Host is: %s\n", host)
+	}
+
+	if token == "token" || token == "" {
+		fmt.Println("Please set a token!")
+	} else {
+		fmt.Println("OK, got a token.")
+	}
+}

cmd/query.go

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+package cmd
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+
+	"github.com/machinebox/graphql"
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var queryCmd = &cobra.Command{
+	Use:   "query",
+	Short: "Query the CircleCI GraphQL API.",
+	Run:   query,
+}
+
+func query(cmd *cobra.Command, args []string) {
+	host := viper.GetString("host")
+	token := viper.GetString("token")
+	client := graphql.NewClient(host + "/graphql")
+
+	query := `
+		  query IntrospectionQuery {
+		    __schema {
+		      queryType { name }
+		      mutationType { name }
+		      subscriptionType { name }
+		      types {
+		        ...FullType
+		      }
+		      directives {
+		        name
+		        description
+		      }
+		    }
+		  }
+
+		  fragment FullType on __Type {
+		    kind
+		    name
+		    description
+		    fields(includeDeprecated: true) {
+		      name
+		    }
+		  }`
+
+	req := graphql.NewRequest(query)
+	req.Header.Set("Authorization", token)
+
+	ctx := context.Background()
+	var resp map[string]interface{}
+
+	fmt.Print("Querying ", host, " with:\n\n", query, "\n\n")
+	if err := client.Run(ctx, req, &resp); err != nil {
+		log.Fatal(err)
+	}
+
+	b, _ := json.MarshalIndent(resp, "", "  ")
+	fmt.Print("Result: \n\n")
+	fmt.Println(string(b))
+}