feat(golang-rewrite): info command

* Implement info command
* Remove duplicate and unneeded BATS tests from `main_test.go`
* remove download dir for plugin when removing plugin
* update plugins.Add function so downloads directory is created

cmd/cmd.go

@@ -7,6 +7,7 @@ import (
 	"os"
 
 	"asdf/config"
+	"asdf/internal/info"
 	"asdf/plugins"
 
 	"github.com/urfave/cli/v2"
@@ -19,7 +20,7 @@ Manage all your runtime versions with one tool!
 Complete documentation is available at https://asdf-vm.com/`
 
 // Execute defines the full CLI API and then runs it
-func Execute() {
+func Execute(version string) {
 	logger := log.New(os.Stderr, "", 0)
 	log.SetFlags(0)
 
@@ -37,11 +38,23 @@ func Execute() {
 		Usage:     "The multiple runtime version manager",
 		UsageText: usageText,
 		Commands: []*cli.Command{
-			// TODO: Flesh out all these commands
+			{
+				Name: "info",
+				Action: func(_ *cli.Context) error {
+					conf, err := config.LoadConfig()
+					if err != nil {
+						logger.Printf("error loading config: %s", err)
+						return err
+					}
+
+					return infoCommand(conf, version)
+				},
+			},
 			{
 				Name: "plugin",
 				Action: func(_ *cli.Context) error {
-					log.Print("Foobar")
+					logger.Println("Unknown command: `asdf plugin`")
+					os.Exit(1)
 					return nil
 				},
 				Subcommands: []*cli.Command{
@@ -184,6 +197,10 @@ func pluginListCommand(cCtx *cli.Context, logger *log.Logger) error {
 	return nil
 }
 
+func infoCommand(conf config.Config, version string) error {
+	return info.Print(conf, version)
+}
+
 func pluginUpdateCommand(cCtx *cli.Context, logger *log.Logger, pluginName, ref string) error {
 	updateAll := cCtx.Bool("all")
 	if !updateAll && pluginName == "" {

internal/info/info.go

@@ -0,0 +1,74 @@
+// Package info exists to print important info about this asdf installation to STDOUT for use in debugging and bug reports.
+package info
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"text/tabwriter"
+
+	"asdf/config"
+	"asdf/execute"
+	"asdf/plugins"
+)
+
+// Print info output to STDOUT
+func Print(conf config.Config, version string) error {
+	return Write(conf, version, os.Stdout)
+}
+
+// Write info output to an io.Writer
+func Write(conf config.Config, version string, writer io.Writer) error {
+	fmt.Fprintln(writer, "OS:")
+	uname := execute.NewExpression("uname -a", []string{})
+	uname.Stdout = writer
+	err := uname.Run()
+	if err != nil {
+		return err
+	}
+
+	fmt.Fprintln(writer, "\nSHELL:")
+	shellVersion := execute.NewExpression("$SHELL --version", []string{})
+	shellVersion.Stdout = writer
+	err = shellVersion.Run()
+	if err != nil {
+		return err
+	}
+
+	fmt.Fprintln(writer, "\nBASH VERSION:")
+	bashVersion := execute.NewExpression("echo $BASH_VERSION", []string{})
+	bashVersion.Stdout = writer
+	err = bashVersion.Run()
+	if err != nil {
+		return err
+	}
+
+	fmt.Fprintln(writer, "\nASDF VERSION:")
+	fmt.Fprintf(writer, "%s\n", version)
+
+	fmt.Fprintln(writer, "\nASDF INTERNAL VARIABLES:")
+	fmt.Fprintf(writer, "ASDF_DEFAULT_TOOL_VERSIONS_FILENAME=%s\n", conf.DefaultToolVersionsFilename)
+	fmt.Fprintf(writer, "ASDF_DATA_DIR=%s\n", conf.DataDir)
+	fmt.Fprintf(writer, "ASDF_CONFIG_FILE=%s\n", conf.ConfigFile)
+
+	fmt.Fprintln(writer, "\nASDF INSTALLED PLUGINS:")
+	plugins, err := plugins.List(conf, true, true)
+	if err != nil {
+		fmt.Fprintf(writer, "error loading plugin list: %s", err)
+		return err
+	}
+
+	pluginsTable(plugins, writer)
+
+	return nil
+}
+
+func pluginsTable(plugins []plugins.Plugin, output io.Writer) error {
+	writer := tabwriter.NewWriter(output, 10, 4, 1, ' ', 0)
+
+	for _, plugin := range plugins {
+		fmt.Fprintf(writer, "%s\t%s\t%s\n", plugin.Name, plugin.URL, plugin.Ref)
+	}
+
+	return writer.Flush()
+}

internal/info/info_test.go

@@ -0,0 +1,33 @@
+package info
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"asdf/config"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestWrite(t *testing.T) {
+	testDataDir := t.TempDir()
+	err := os.MkdirAll(filepath.Join(testDataDir, "plugins"), 0o777)
+	assert.Nil(t, err)
+
+	conf := config.Config{DataDir: testDataDir}
+	var stdout strings.Builder
+
+	err = Write(conf, "0.15.0", &stdout)
+	assert.Nil(t, err)
+	output := stdout.String()
+
+	// Simple format assertions
+	assert.True(t, strings.Contains(output, "OS:\n"))
+	assert.True(t, strings.Contains(output, "BASH VERSION:\n"))
+	assert.True(t, strings.Contains(output, "SHELL:\n"))
+	assert.True(t, strings.Contains(output, "ASDF VERSION:\n"))
+	assert.True(t, strings.Contains(output, "INTERNAL VARIABLES:\n"))
+	assert.True(t, strings.Contains(output, "ASDF INSTALLED PLUGINS:\n"))
+}

main.go

@@ -5,7 +5,9 @@ import (
 	"asdf/cmd"
 )
 
+var version = "v0.15.0"
+
 // Placeholder for the real code
 func main() {
-	cmd.Execute()
+	cmd.Execute(version)
 }

main_test.go

@@ -23,10 +23,6 @@ func TestBatsTests(t *testing.T) {
 	//  runBatsFile(t, dir, "current_command.bats")
 	//})
 
-	//t.Run("get_asdf_config_value", func(t *testing.T) {
-	//  runBatsFile(t, dir, "get_asdf_config_value.bats")
-	//})
-
 	//t.Run("help_command", func(t *testing.T) {
 	//  runBatsFile(t, dir, "help_command.bats")
 	//})
@@ -79,10 +75,6 @@ func TestBatsTests(t *testing.T) {
 	//  runBatsFile(t, dir, "reshim_command.bats")
 	//})
 
-	//t.Run("reshim_command", func(t *testing.T) {
-	//  runBatsFile(t, dir, "reshim_command.bats")
-	//})
-
 	//t.Run("shim_env_command", func(t *testing.T) {
 	//  runBatsFile(t, dir, "shim_env_command.bats")
 	//})
@@ -95,10 +87,6 @@ func TestBatsTests(t *testing.T) {
 	//  runBatsFile(t, dir, "shim_versions_command.bats")
 	//})
 
-	//t.Run("shim_versions_command", func(t *testing.T) {
-	//  runBatsFile(t, dir, "shim_versions_command.bats")
-	//})
-
 	//t.Run("uninstall_command", func(t *testing.T) {
 	//  runBatsFile(t, dir, "uninstall_command.bats")
 	//})

plugins/plugins.go

@@ -194,6 +194,11 @@ func Add(config config.Config, pluginName, pluginURL string) error {
 		return err
 	}
 
+	err = os.MkdirAll(PluginDownloadDirectory(config.DataDir, plugin.Name), 0o777)
+	if err != nil {
+		return err
+	}
+
 	env := map[string]string{"ASDF_PLUGIN_SOURCE_URL": plugin.URL, "ASDF_PLUGIN_PATH": plugin.Dir}
 	plugin.RunCallback("post-plugin-add", []string{}, env, os.Stdout, os.Stderr)
 
@@ -221,8 +226,16 @@ func Remove(config config.Config, pluginName string) error {
 	}
 
 	pluginDir := PluginDirectory(config.DataDir, pluginName)
+	downloadDir := PluginDownloadDirectory(config.DataDir, pluginName)
 
-	return os.RemoveAll(pluginDir)
+	err = os.RemoveAll(downloadDir)
+	err2 := os.RemoveAll(pluginDir)
+
+	if err != nil {
+		return err
+	}
+
+	return err2
 }
 
 // Update a plugin to a specific ref, or if no ref provided update to latest
@@ -269,6 +282,12 @@ func PluginDirectory(dataDir, pluginName string) string {
 	return filepath.Join(DataDirectory(dataDir), pluginName)
 }
 
+// PluginDownloadDirectory returns the directory a plugin will be placing
+// downloads of version source code
+func PluginDownloadDirectory(dataDir, pluginName string) string {
+	return filepath.Join(dataDir, "downloads", pluginName)
+}
+
 // DataDirectory returns the path to the plugin directory inside the data
 // directory
 func DataDirectory(dataDir string) string {

plugins/plugins_test.go

@@ -151,6 +151,19 @@ func TestAdd(t *testing.T) {
 		assert.Nil(t, err)
 		assert.Equal(t, 5, len(entries))
 	})
+
+	t.Run("when parameters are valid creates plugin download dir", func(t *testing.T) {
+		testDataDir := t.TempDir()
+		conf := config.Config{DataDir: testDataDir}
+
+		err := Add(conf, testPluginName, testRepo)
+		assert.Nil(t, err)
+
+		// Assert download dir exists
+		downloadDir := PluginDownloadDirectory(testDataDir, testPluginName)
+		_, err = os.Stat(downloadDir)
+		assert.Nil(t, err)
+	})
 }
 
 func TestRemove(t *testing.T) {
@@ -182,6 +195,19 @@ func TestRemove(t *testing.T) {
 		assert.NotNil(t, err)
 		assert.True(t, os.IsNotExist(err))
 	})
+
+	t.Run("removes plugin download dir when passed name of installed plugin", func(t *testing.T) {
+		err := Add(conf, testPluginName, testRepo)
+		assert.Nil(t, err)
+
+		err = Remove(conf, testPluginName)
+		assert.Nil(t, err)
+
+		downloadDir := PluginDownloadDirectory(testDataDir, testPluginName)
+		_, err = os.Stat(downloadDir)
+		assert.NotNil(t, err)
+		assert.True(t, os.IsNotExist(err))
+	})
 }
 
 func TestUpdate(t *testing.T) {

test/fixtures/dummy_plugin/bin/debug

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 
-echo $@
+echo "$@"