[CIRCLE-12186] optionally read config file from stdin

api/api.go

@@ -3,6 +3,7 @@ package api
 import (
 	"context"
 	"io/ioutil"
+	"os"
 	"strings"
 
 	"github.com/CircleCI-Public/circleci-cli/client"
@@ -54,8 +55,13 @@ func (response GQLResponseErrors) ToError() error {
 }
 
 func loadYaml(path string) (string, error) {
-
-	config, err := ioutil.ReadFile(path)
+	var err error
+	var config []byte
+	if path == "-" {
+		config, err = ioutil.ReadAll(os.Stdin)
+	} else {
+		config, err = ioutil.ReadFile(path)
+	}
 
 	if err != nil {
 		return "", errors.Wrapf(err, "Could not load config file at %s", path)

cmd/cmd_suite_test.go

@@ -71,19 +71,25 @@ func (f tmpFile) write(fileContent string) error {
 	return err
 }
 
-func openTmpFile(path string) (tmpFile, error) {
+func openTmpDir(prefix string) (string, error) {
+	var dir string
+	if prefix == "" {
+		dir = "circleci-cli-test-"
+	} else {
+		dir = prefix
+	}
+	tmpDir, err := ioutil.TempDir("", dir)
+	return tmpDir, err
+}
+
+func openTmpFile(directory string, path string) (tmpFile, error) {
 	var (
 		config tmpFile = tmpFile{}
 		err    error
 	)
 
-	tmpDir, err := ioutil.TempDir("", "circleci-cli-test-")
-	if err != nil {
-		return config, err
-	}
-
-	config.RootDir = tmpDir
-	config.Path = filepath.Join(tmpDir, path)
+	config.RootDir = directory
+	config.Path = filepath.Join(directory, path)
 
 	err = os.MkdirAll(filepath.Dir(config.Path), 0700)
 	if err != nil {

cmd/config.go

@@ -7,23 +7,27 @@ import (
 	"github.com/spf13/cobra"
 )
 
+const defaultConfigPath = ".circleci/config.yml"
+
 func newConfigCommand() *cobra.Command {
 	configCmd := &cobra.Command{
 		Use:   "config",
 		Short: "Operate on build config files",
 	}
 
 	validateCommand := &cobra.Command{
-		Use:     "validate",
+		Use:     "validate [config.yml]",
 		Aliases: []string{"check"},
 		Short:   "Check that the config file is well formed.",
 		RunE:    validateConfig,
+		Args:    cobra.MaximumNArgs(1),
 	}
 
 	expandCommand := &cobra.Command{
-		Use:   "expand",
+		Use:   "expand [config.yml]",
 		Short: "Expand the config.",
 		RunE:  expandConfig,
+		Args:  cobra.MaximumNArgs(1),
 	}
 
 	configCmd.AddCommand(validateCommand)
@@ -34,6 +38,10 @@ func newConfigCommand() *cobra.Command {
 
 func validateConfig(cmd *cobra.Command, args []string) error {
 
+	configPath := defaultConfigPath
+	if len(args) == 1 {
+		configPath = args[0]
+	}
 	ctx := context.Background()
 	response, err := api.ConfigQuery(ctx, Logger, configPath)
 
@@ -51,7 +59,10 @@ func validateConfig(cmd *cobra.Command, args []string) error {
 
 func expandConfig(cmd *cobra.Command, args []string) error {
 	ctx := context.Background()
-
+	configPath := defaultConfigPath
+	if len(args) == 1 {
+		configPath = args[0]
+	}
 	response, err := api.ConfigQuery(ctx, Logger, configPath)
 
 	if err != nil {

cmd/config_test.go

@@ -2,6 +2,7 @@ package cmd_test
 
 import (
 	"net/http"
+	"os"
 	"os/exec"
 	"path/filepath"
 
@@ -17,18 +18,23 @@ var _ = Describe("Config", func() {
 		var (
 			testServer *ghttp.Server
 			config     tmpFile
+			tmpDir     string
 		)
 
 		BeforeEach(func() {
 			var err error
-			config, err = openTmpFile(filepath.Join(".circleci", "config.yaml"))
+			tmpDir, err = openTmpDir("")
+			Expect(err).ToNot(HaveOccurred())
+
+			config, err = openTmpFile(tmpDir, filepath.Join(".circleci", "config.yaml"))
 			Expect(err).ToNot(HaveOccurred())
 
 			testServer = ghttp.NewServer()
 		})
 
 		AfterEach(func() {
 			config.close()
+			os.RemoveAll(tmpDir)
 			testServer.Close()
 		})
 
@@ -44,7 +50,7 @@ var _ = Describe("Config", func() {
 					"config", "validate",
 					"-t", token,
 					"-e", testServer.URL(),
-					"-c", config.Path,
+					config.Path,
 				)
 			})
 
@@ -120,7 +126,7 @@ var _ = Describe("Config", func() {
 					"config", "expand",
 					"-t", token,
 					"-e", testServer.URL(),
-					"-c", config.Path,
+					config.Path,
 				)
 			})
 

cmd/orb.go

@@ -28,15 +28,17 @@ func newOrbCommand() *cobra.Command {
 	}
 
 	orbValidateCommand := &cobra.Command{
-		Use:   "validate",
+		Use:   "validate [orb.yml]",
 		Short: "validate an orb.yml",
 		RunE:  validateOrb,
+		Args:  cobra.MaximumNArgs(1),
 	}
 
 	orbExpandCommand := &cobra.Command{
-		Use:   "expand",
+		Use:   "expand [orb.yml]",
 		Short: "expand an orb.yml",
 		RunE:  expandOrb,
+		Args:  cobra.MaximumNArgs(1),
 	}
 
 	orbPublishCommand := &cobra.Command{
@@ -55,10 +57,8 @@ func newOrbCommand() *cobra.Command {
 
 	orbCommand.AddCommand(orbListCommand)
 
-	orbValidateCommand.PersistentFlags().StringVarP(&orbPath, "path", "p", "orb.yml", "path to orb file")
 	orbCommand.AddCommand(orbValidateCommand)
 
-	orbExpandCommand.PersistentFlags().StringVarP(&orbPath, "path", "p", "orb.yml", "path to orb file")
 	orbCommand.AddCommand(orbExpandCommand)
 
 	orbCommand.AddCommand(orbPublishCommand)
@@ -180,8 +180,14 @@ query ListOrbs ($after: String!) {
 	return nil
 }
 
+const defaultOrbPath = "orb.yml"
+
 func validateOrb(cmd *cobra.Command, args []string) error {
 	ctx := context.Background()
+	orbPath := defaultOrbPath
+	if len(args) == 1 {
+		orbPath = args[0]
+	}
 	response, err := api.OrbQuery(ctx, Logger, orbPath)
 
 	if err != nil {
@@ -198,7 +204,10 @@ func validateOrb(cmd *cobra.Command, args []string) error {
 
 func expandOrb(cmd *cobra.Command, args []string) error {
 	ctx := context.Background()
-
+	orbPath := defaultOrbPath
+	if len(args) == 1 {
+		orbPath = args[0]
+	}
 	response, err := api.OrbQuery(ctx, Logger, orbPath)
 
 	if err != nil {