Make parameters file flag singular

This brings it inline with other flags that can be called multiple times
in the Docker CLI.

Signed-off-by: Christopher Crone <[email protected]>

Author: chris-crone

e2e/commands_test.go

@@ -60,7 +60,7 @@ func testRenderApp(appPath string, env ...string) func(*testing.T) {
 		data, err := ioutil.ReadFile(filepath.Join(appPath, "env.yml"))
 		assert.NilError(t, err)
 		assert.NilError(t, yaml.Unmarshal(data, &envParameters))
-		args := dockerCli.Command("app", "render", filepath.Join(appPath, "my.dockerapp"), "--parameters-files", filepath.Join(appPath, "parameters-0.yml"))
+		args := dockerCli.Command("app", "render", filepath.Join(appPath, "my.dockerapp"), "--parameters-file", filepath.Join(appPath, "parameters-0.yml"))
 		for k, v := range envParameters {
 			args = append(args, "--set", fmt.Sprintf("%s=%s", k, v))
 		}

examples/voting-app/Makefile

@@ -24,11 +24,11 @@ cleanup: cleanup/production cleanup/development
 #
 render/production: cleanup/production
 	@mkdir -p $(PRODUCTION_DIR)
-	docker-app render --parameters-files $(PARAMETERS_DIR)/production.yml > $(PRODUCTION_DIR)/docker-compose.yml
+	docker-app render --parameters-file $(PARAMETERS_DIR)/production.yml > $(PRODUCTION_DIR)/docker-compose.yml
 
 render/development: cleanup/development
 	@mkdir -p $(DEVELOPMENT_DIR)
-	docker-app render --parameters-files $(PARAMETERS_DIR)/development.yml > $(DEVELOPMENT_DIR)/docker-compose.yml
+	docker-app render --parameters-file $(PARAMETERS_DIR)/development.yml > $(DEVELOPMENT_DIR)/docker-compose.yml
 
 render: render/production render/development
 
@@ -47,10 +47,10 @@ stop: stop/production stop/development
 # Deploy.
 #
 deploy/production: render/production stop/production
-	docker-app deploy --parameters-files $(PARAMETERS_DIR)/production.yml
+	docker-app deploy --parameters-file $(PARAMETERS_DIR)/production.yml
 
 deploy/development: render/development stop/development
-	docker-app deploy --parameters-files $(PARAMETERS_DIR)/development.yml
+	docker-app deploy --parameters-file $(PARAMETERS_DIR)/development.yml
 
 #
 # Pack.

examples/wordpress/README.md

@@ -54,7 +54,7 @@ volumes:
 **Override default parameters with file**. This example sets `debug` to `"false"` and the wordpress service published port to 80 as defined in `prod-parameters.yml`.
 
 ```yaml
-# docker-app render wordpress --parameters-files prod-parameters.yml
+# docker-app render wordpress --parameters-file prod-parameters.yml
 version: "3.6"
 [...]
     environment:

internal/commands/root.go

@@ -83,8 +83,8 @@ type parametersOptions struct {
 }
 
 func (o *parametersOptions) addFlags(flags *pflag.FlagSet) {
-	flags.StringArrayVarP(&o.parametersFiles, "parameters-files", "f", []string{}, "Override parameters files")
-	flags.StringArrayVarP(&o.overrides, "set", "s", []string{}, "Override parameters values")
+	flags.StringArrayVar(&o.parametersFiles, "parameters-file", []string{}, "Override parameters file")
+	flags.StringArrayVarP(&o.overrides, "set", "s", []string{}, "Override parameter value")
 }
 
 type credentialOptions struct {