Refactoring options

README.md

@@ -26,8 +26,8 @@ $ asdf plugin add ecspresso
 # or
 $ asdf plugin add ecspresso https://github.com/kayac/asdf-ecspresso.git
 
-$ asdf install ecspresso 2.0.0
-$ asdf global ecspresso 2.0.0
+$ asdf install ecspresso 2.3.0
+$ asdf global ecspresso 2.3.0
 ```
 
 ### aqua (macOS and Linux)
@@ -49,13 +49,13 @@ https://circleci.com/orbs/registry/orb/fujiwara/ecspresso
 ```yaml
 version: 2.1
 orbs:
-  ecspresso: fujiwara/ecspresso@2.0.3
+  ecspresso: fujiwara/ecspresso@2.3.0
 jobs:
   install:
     steps:
       - checkout
       - ecspresso/install:
-          version: v2.0.0 # or latest
+          version: v2.3.0 # or latest
           # version-file: .ecspresso-version
       - run:
           command: |
@@ -86,7 +86,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: kayac/ecspresso@v2
         with:
-          version: v2.0.0 # or latest
+          version: v2.3.0 # or latest
           # version-file: .ecspresso-version
       - run: |
           ecspresso deploy --config ecspresso.yml
@@ -108,7 +108,7 @@ Pass the parameter "latest" to use the latest version of ecspresso.
 
 `version: latest` is not recommended because it may cause unexpected behavior when the new version of ecspresso is released.
 
-GitHub Action `kayac/ecspresso@v2` supports `version-file: path/to/file` installs ecspresso that version written in the file. This version number does not have `v` prefix, For example `2.0.0`.
+GitHub Action `kayac/ecspresso@v2` supports `version-file: path/to/file` installs ecspresso that version written in the file. This version number does not have `v` prefix, For example `2.3.0`.
 
 ## Usage
 
@@ -117,13 +117,14 @@ Usage: ecspresso <command>
 
 Flags:
   -h, --help                      Show context-sensitive help.
-      --envfile=ENVFILE,...       environment files
-      --debug                     enable debug log
-      --ext-str=KEY=VALUE;...     external string values for Jsonnet
-      --ext-code=KEY=VALUE;...    external code values for Jsonnet
-      --config="ecspresso.yml"    config file
-      --assume-role-arn=""        the ARN of the role to assume
-      --option=OPTION
+      --envfile=ENVFILE,...       environment files ($ECSPRESSO_ENVFILE)
+      --debug                     enable debug log ($ECSPRESSO_DEBUG)
+      --ext-str=KEY=VALUE;...     external string values for Jsonnet ($ECSPRESSO_EXT_STR)
+      --ext-code=KEY=VALUE;...    external code values for Jsonnet ($ECSPRESSO_EXT_CODE)
+      --config="ecspresso.yml"    config file ($ECSPRESSO_CONFIG)
+      --assume-role-arn=""        the ARN of the role to assume ($ECSPRESSO_ASSUME_ROLE_ARN)
+      --timeout=TIMEOUT           timeout. Override in a configuration file ($ECSPRESSO_TIMEOUT).
+      --filter-command=STRING     filter command ($ECSPRESSO_FILTER_COMMAND)
 
 Commands:
   appspec

cli.go

@@ -4,10 +4,18 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"time"
 )
 
 type CLIOptions struct {
-	Option
+	Envfile        []string          `help:"environment files" env:"ECSPRESSO_ENVFILE"`
+	Debug          bool              `help:"enable debug log" env:"ECSPRESSO_DEBUG"`
+	ExtStr         map[string]string `help:"external string values for Jsonnet" env:"ECSPRESSO_EXT_STR"`
+	ExtCode        map[string]string `help:"external code values for Jsonnet" env:"ECSPRESSO_EXT_CODE"`
+	ConfigFilePath string            `name:"config" help:"config file" default:"ecspresso.yml" env:"ECSPRESSO_CONFIG"`
+	AssumeRoleARN  string            `help:"the ARN of the role to assume" default:"" env:"ECSPRESSO_ASSUME_ROLE_ARN"`
+	Timeout        *time.Duration    `help:"timeout. Override in a configuration file." env:"ECSPRESSO_TIMEOUT"`
+	FilterCommand  string            `help:"filter command" env:"ECSPRESSO_FILTER_COMMAND"`
 
 	Appspec    *AppSpecOption    `cmd:"" help:"output AppSpec YAML for CodeDeploy to STDOUT"`
 	Delete     *DeleteOption     `cmd:"" help:"delete service"`
@@ -30,6 +38,24 @@ type CLIOptions struct {
 	Version    struct{}          `cmd:"" help:"show version"`
 }
 
+func (opt *CLIOptions) resolveConfigFilePath() (path string) {
+	path = DefaultConfigFilePath
+	defer func() {
+		opt.ConfigFilePath = path
+	}()
+	if opt.ConfigFilePath != "" && opt.ConfigFilePath != DefaultConfigFilePath {
+		path = opt.ConfigFilePath
+		return
+	}
+	for _, ext := range []string{ymlExt, yamlExt, jsonExt, jsonnetExt} {
+		if _, err := os.Stat("ecspresso" + ext); err == nil {
+			path = "ecspresso" + ext
+			return
+		}
+	}
+	return
+}
+
 func (opts *CLIOptions) ForSubCommand(sub string) interface{} {
 	switch sub {
 	case "appspec":
@@ -79,8 +105,15 @@ func dispatchCLI(ctx context.Context, sub string, usage func(), opts *CLIOptions
 		fmt.Println("ecspresso", Version)
 		return nil
 	}
-
-	app, err := New(ctx, &opts.Option)
+	var appOpts []AppOption
+	if sub == "init" {
+		config, err := opts.Init.NewConfig(ctx, opts.ConfigFilePath)
+		if err != nil {
+			return err
+		}
+		appOpts = append(appOpts, WithConfig(config))
+	}
+	app, err := New(ctx, opts, appOpts...)
 	if err != nil {
 		return err
 	}

cli_test.go

@@ -12,7 +12,7 @@ import (
 var cliTests = []struct {
 	args      []string
 	sub       string
-	option    *ecspresso.Option
+	option    *ecspresso.CLIOptions
 	subOption any
 	fn        func(*testing.T, any)
 }{
@@ -28,13 +28,12 @@ var cliTests = []struct {
 			"--assume-role-arn", "arn:aws:iam::123456789012:role/exampleRole",
 		},
 		sub: "status",
-		option: &ecspresso.Option{
+		option: &ecspresso.CLIOptions{
 			ConfigFilePath: "config.yml",
 			Debug:          true,
 			Envfile:        []string{"tests/envfile"},
 			ExtStr:         map[string]string{"s1": "v1", "s2": "v2"},
 			ExtCode:        map[string]string{"c1": "123", "c2": "1+2"},
-			InitOption:     nil,
 			AssumeRoleARN:  "arn:aws:iam::123456789012:role/exampleRole",
 		},
 		subOption: &ecspresso.StatusOption{
@@ -54,12 +53,11 @@ var cliTests = []struct {
 			"--events=100",
 		},
 		sub: "status",
-		option: &ecspresso.Option{
+		option: &ecspresso.CLIOptions{
 			ConfigFilePath: "config.yml",
 			Debug:          true,
 			ExtStr:         map[string]string{},
 			ExtCode:        map[string]string{},
-			InitOption:     nil,
 			AssumeRoleARN:  "",
 		},
 		subOption: &ecspresso.StatusOption{
@@ -587,7 +585,6 @@ var cliTests = []struct {
 		subOption: &ecspresso.InitOption{
 			Region:                os.Getenv("AWS_REGION"),
 			Cluster:               "default",
-			ConfigFilePath:        "myconfig.yml",
 			Service:               "myservice",
 			TaskDefinitionPath:    "ecs-task-def.json",
 			ServiceDefinitionPath: "ecs-service-def.json",
@@ -598,17 +595,7 @@ var cliTests = []struct {
 	{
 		args: []string{"init", "--service", "myservice", "--config", "myconfig.yml"},
 		sub:  "init",
-		option: &ecspresso.Option{
-			InitOption: &ecspresso.InitOption{
-				Region:                os.Getenv("AWS_REGION"),
-				Cluster:               "default",
-				ConfigFilePath:        "myconfig.yml",
-				Service:               "myservice",
-				TaskDefinitionPath:    "ecs-task-def.json",
-				ServiceDefinitionPath: "ecs-service-def.json",
-				ForceOverwrite:        false,
-				Jsonnet:               false,
-			},
+		option: &ecspresso.CLIOptions{
 			ConfigFilePath: "myconfig.yml",
 			Debug:          false,
 			ExtStr:         map[string]string{},
@@ -617,7 +604,6 @@ var cliTests = []struct {
 		subOption: &ecspresso.InitOption{
 			Region:                os.Getenv("AWS_REGION"),
 			Cluster:               "default",
-			ConfigFilePath:        "myconfig.yml",
 			Service:               "myservice",
 			TaskDefinitionPath:    "ecs-task-def.json",
 			ServiceDefinitionPath: "ecs-service-def.json",
@@ -636,7 +622,6 @@ var cliTests = []struct {
 		subOption: &ecspresso.InitOption{
 			Region:                os.Getenv("AWS_REGION"),
 			Cluster:               "mycluster",
-			ConfigFilePath:        "myconfig.jsonnet",
 			Service:               "myservice",
 			TaskDefinitionPath:    "taskdef.jsonnet",
 			ServiceDefinitionPath: "servicedef.jsonnet",
@@ -650,7 +635,6 @@ var cliTests = []struct {
 		subOption: &ecspresso.InitOption{
 			Region:                os.Getenv("AWS_REGION"),
 			Cluster:               "default",
-			ConfigFilePath:        "myconfig.yml",
 			Service:               "",
 			TaskDefinition:        "app:123",
 			TaskDefinitionPath:    "ecs-task-def.json",
@@ -798,7 +782,7 @@ func TestParseCLIv2(t *testing.T) {
 				t.Errorf("unexpected subcommand: expected %s, got %s", tt.sub, sub)
 			}
 			if tt.option != nil {
-				if diff := cmp.Diff(*tt.option, opt.Option); diff != "" {
+				if diff := cmp.Diff(tt.option, CLIOptionsGlobalOnly(opt)); diff != "" {
 					t.Errorf("unexpected option: diff %s", diff)
 				}
 			}
@@ -813,3 +797,16 @@ func TestParseCLIv2(t *testing.T) {
 		})
 	}
 }
+
+func CLIOptionsGlobalOnly(opts *ecspresso.CLIOptions) *ecspresso.CLIOptions {
+	return &ecspresso.CLIOptions{
+		ConfigFilePath: opts.ConfigFilePath,
+		Debug:          opts.Debug,
+		ExtStr:         opts.ExtStr,
+		ExtCode:        opts.ExtCode,
+		Envfile:        opts.Envfile,
+		AssumeRoleARN:  opts.AssumeRoleARN,
+		Timeout:        opts.Timeout,
+		FilterCommand:  opts.FilterCommand,
+	}
+}

cliv2.go

@@ -30,16 +30,11 @@ func ParseCLIv2(args []string) (string, *CLIOptions, func(), error) {
 		}
 	}
 
-	if opts.Option.ExtStr == nil {
-		opts.Option.ExtStr = map[string]string{}
+	if opts.ExtStr == nil {
+		opts.ExtStr = map[string]string{}
 	}
-	if opts.Option.ExtCode == nil {
-		opts.Option.ExtCode = map[string]string{}
-	}
-	switch sub {
-	case "init":
-		opts.Init.ConfigFilePath = opts.ConfigFilePath
-		opts.Option.InitOption = opts.Init
+	if opts.ExtCode == nil {
+		opts.ExtCode = map[string]string{}
 	}
 	return sub, &opts, func() { c.PrintUsage(true) }, nil
 }

config.go

@@ -112,7 +112,7 @@ func (l *configLoader) Load(ctx context.Context, path string, version string) (*
 	return conf, nil
 }
 
-func (c *Config) OverrideByOption(opt *Option) {
+func (c *Config) OverrideByCLIOptions(opt *CLIOptions) {
 	if opt.Timeout != nil {
 		c.Timeout = &Duration{*opt.Timeout}
 	}

config_test.go

@@ -13,7 +13,7 @@ import (
 
 func TestLoadServiceDefinition(t *testing.T) {
 	ctx := context.Background()
-	app, err := ecspresso.New(ctx, &ecspresso.Option{ConfigFilePath: "tests/test.yaml"})
+	app, err := ecspresso.New(ctx, &ecspresso.CLIOptions{ConfigFilePath: "tests/test.yaml"})
 	if err != nil {
 		t.Error(err)
 	}
@@ -89,7 +89,7 @@ func testLoadConfigWithPlugin(t *testing.T, path string) {
 	t.Setenv("JSON", `{"foo":"bar"}`)
 	t.Setenv("AWS_REGION", "ap-northeast-1")
 	ctx := context.Background()
-	app, err := ecspresso.New(ctx, &ecspresso.Option{ConfigFilePath: path})
+	app, err := ecspresso.New(ctx, &ecspresso.CLIOptions{ConfigFilePath: path})
 	if err != nil {
 		t.Error(err)
 	}
@@ -311,7 +311,7 @@ var FilterCommandTests = []struct {
 func TestFilterCommandDeprecated(t *testing.T) {
 	ctx := context.Background()
 	for _, ts := range FilterCommandTests {
-		app, err := ecspresso.New(ctx, &ecspresso.Option{
+		app, err := ecspresso.New(ctx, &ecspresso.CLIOptions{
 			ConfigFilePath: "tests/filter_command.yml",
 			FilterCommand:  ts.Env,
 		})