tui: mosaic prototype

Author: thdxr

.air.toml

@@ -0,0 +1,51 @@
+root = "."
+testdata_dir = "testdata"
+tmp_dir = "tmp"
+
+[build]
+  args_bin = []
+  bin = "./dist/sst"
+  cmd = "go build -o ./dist/sst ./cmd/sst"
+  delay = 1000
+  exclude_dir = ["assets", "tmp", "vendor", "testdata", "node_modules", "examples"]
+  exclude_file = []
+  exclude_regex = ["_test.go"]
+  exclude_unchanged = false
+  follow_symlink = false
+  full_bin = ""
+  include_dir = []
+  include_ext = ["go", "tpl", "tmpl", "html"]
+  include_file = []
+  kill_delay = "0s"
+  log = "build-errors.log"
+  poll = false
+  poll_interval = 0
+  post_cmd = []
+  pre_cmd = []
+  rerun = false
+  rerun_delay = 500
+  send_interrupt = false
+  stop_on_error = false
+
+[color]
+  app = ""
+  build = "yellow"
+  main = "magenta"
+  runner = "green"
+  watcher = "cyan"
+
+[log]
+  main_only = false
+  time = false
+
+[misc]
+  clean_on_exit = false
+
+[proxy]
+  app_port = 0
+  enabled = false
+  proxy_port = 0
+
+[screen]
+  clear_on_rebuild = false
+  keep_scroll = true

cmd/sst/cli/cli.go

@@ -0,0 +1,339 @@
+package cli
+
+import (
+	"context"
+	"fmt"
+	flag "github.com/spf13/pflag"
+	"os"
+	"os/user"
+	"strings"
+
+	"github.com/charmbracelet/huh"
+	"github.com/fatih/color"
+	"github.com/joho/godotenv"
+	"github.com/sst/ion/internal/util"
+	"github.com/sst/ion/pkg/project"
+)
+
+type Cli struct {
+	version   string
+	flags     map[string]interface{}
+	arguments []string
+	path      CommandPath
+	Context   context.Context
+	cancel    context.CancelFunc
+}
+
+func New(ctx context.Context, cancel context.CancelFunc, root *Command, version string) (*Cli, error) {
+	parsedFlags := map[string]interface{}{}
+	root.init(parsedFlags)
+	flag.CommandLine.Init("sst", flag.ContinueOnError)
+	cliParseError := flag.CommandLine.Parse(os.Args[1:])
+	positionals := []string{}
+	cmds := CommandPath{
+		*root,
+	}
+	for i, arg := range flag.Args() {
+		var cmd *Command
+
+		last := cmds[len(cmds)-1]
+		if len(last.Children) == 0 {
+			positionals = flag.Args()[i:]
+			break
+		}
+		for _, c := range last.Children {
+			if c.Name == arg {
+				cmd = c
+				break
+			}
+		}
+		if cmd == nil {
+			break
+		}
+		cmds = append(cmds, *cmd)
+	}
+	cli := &Cli{
+		flags:     parsedFlags,
+		version:   version,
+		arguments: positionals,
+		path:      cmds,
+		Context:   ctx,
+		cancel:    cancel,
+	}
+	if cliParseError != nil {
+		return nil, cli.PrintHelp()
+	}
+	cli.configureLog()
+	return cli, nil
+}
+
+func (c *Cli) Run() error {
+	active := c.path[len(c.path)-1]
+	required := 0
+	for _, arg := range active.Args {
+		if !arg.Required {
+			continue
+		}
+		required += 1
+	}
+	if c.Bool("help") || active.Run == nil || len(c.arguments) < required {
+		return c.PrintHelp()
+	} else {
+		return active.Run(c)
+	}
+}
+
+func (c *Cli) Cancel() {
+	c.cancel()
+}
+
+func (c *Cli) Path() CommandPath {
+	return c.path
+}
+
+func (c *Cli) String(name string) string {
+	if f, ok := c.flags[name]; ok {
+		return *f.(*string)
+	}
+	return ""
+}
+
+func (c *Cli) Bool(name string) bool {
+	if f, ok := c.flags[name]; ok {
+		return *f.(*bool)
+	}
+	return false
+}
+
+func (c *Cli) PrintHelp() error {
+	return c.path.PrintHelp()
+}
+
+func (c *Cli) Arguments() []string {
+	return c.arguments
+}
+
+func (c *Cli) Positional(index int) string {
+	if index >= len(c.arguments) {
+		return ""
+	}
+	return c.arguments[index]
+}
+
+type Command struct {
+	Name        string               `json:"name"`
+	Hidden      bool                 `json:"hidden"`
+	Description Description          `json:"description"`
+	Args        ArgumentList         `json:"args"`
+	Flags       []Flag               `json:"flags"`
+	Examples    []Example            `json:"examples"`
+	Children    []*Command           `json:"children"`
+	Run         func(cli *Cli) error `json:"-"`
+}
+
+func (c *Command) init(parsed map[string]interface{}) {
+	if c.Args == nil {
+		c.Args = ArgumentList{}
+	}
+	if c.Flags == nil {
+		c.Flags = []Flag{}
+	}
+	if c.Examples == nil {
+		c.Examples = []Example{}
+	}
+	if c.Children == nil {
+		c.Children = []*Command{}
+	}
+	for _, f := range c.Flags {
+		if parsed[f.Name] != nil {
+			continue
+		}
+		if f.Type == "string" {
+			parsed[f.Name] = flag.String(f.Name, "", "")
+		}
+
+		if f.Type == "bool" {
+			parsed[f.Name] = flag.Bool(f.Name, false, "")
+		}
+	}
+	for _, child := range c.Children {
+		child.init(parsed)
+	}
+}
+
+type Example struct {
+	Content     string      `json:"content"`
+	Description Description `json:"description"`
+}
+
+type Argument struct {
+	Name        string      `json:"name"`
+	Required    bool        `json:"required"`
+	Description Description `json:"description"`
+}
+
+type Description struct {
+	Short string `json:"short,omitempty"`
+	Long  string `json:"long,omitempty"`
+}
+
+type ArgumentList []Argument
+
+func (a ArgumentList) String() string {
+	args := []string{}
+	for _, arg := range a {
+		if arg.Required {
+			args = append(args, "<"+arg.Name+">")
+		} else {
+			args = append(args, "["+arg.Name+"]")
+		}
+	}
+	return strings.Join(args, " ")
+}
+
+type Flag struct {
+	Name        string      `json:"name"`
+	Type        string      `json:"type"`
+	Description Description `json:"description"`
+}
+
+type CommandPath []Command
+
+var ErrHelp = util.NewReadableError(nil, "")
+
+func (c CommandPath) PrintHelp() error {
+	prefix := []string{}
+	for _, cmd := range c {
+		prefix = append(prefix, cmd.Name)
+	}
+	active := c[len(c)-1]
+
+	if len(active.Children) > 0 {
+		fmt.Print(strings.Join(prefix, " ") + ": ")
+		fmt.Println(color.WhiteString(c[len(c)-1].Description.Short))
+
+		maxSubcommand := 0
+		for _, child := range active.Children {
+			if child.Hidden {
+				continue
+			}
+			next := len(child.Name)
+			if len(child.Args) > 0 {
+				next += len(child.Args.String()) + 1
+			}
+			if next > maxSubcommand {
+				maxSubcommand = next
+			}
+		}
+
+		fmt.Println()
+		for _, child := range active.Children {
+			if child.Hidden {
+				continue
+			}
+			fmt.Printf(
+				"  %s %s  %s\n",
+				strings.Join(prefix, " "),
+				color.New(color.FgWhite, color.Bold).Sprintf("%-*s", maxSubcommand, func() string {
+					if len(child.Args) > 0 {
+						return strings.Join([]string{child.Name, child.Args.String()}, " ")
+					}
+					return child.Name
+				}()),
+				child.Description.Short,
+			)
+		}
+	}
+
+	if len(active.Children) == 0 {
+		color.New(color.FgWhite, color.Bold).Print("Usage: ")
+		color.New(color.FgCyan).Print(strings.Join(prefix, " "))
+		if len(active.Args) > 0 {
+			color.New(color.FgGreen).Print(" " + active.Args.String())
+		}
+		fmt.Println()
+		fmt.Println()
+
+		color.New(color.FgWhite, color.Bold).Print("Flags:\n")
+		maxFlag := 0
+		for _, cmd := range c {
+			for _, f := range cmd.Flags {
+				l := len(f.Name) + 3
+				if l > maxFlag {
+					maxFlag = l
+				}
+			}
+		}
+
+		for _, cmd := range c {
+			for _, f := range cmd.Flags {
+				fmt.Printf(
+					"  %s  %s\n",
+					color.New(color.FgMagenta).Sprintf("--%-*s", maxFlag, f.Name),
+					f.Description.Short,
+				)
+			}
+		}
+
+		if len(active.Examples) > 0 {
+			fmt.Println()
+			color.New(color.FgWhite, color.Bold).Print("Examples:\n")
+			for _, example := range active.Examples {
+				fmt.Println("  " + example.Content)
+			}
+		}
+	}
+
+	fmt.Println()
+	fmt.Printf("Learn more at %s\n", color.MagentaString("https://ion.sst.dev"))
+
+	return ErrHelp
+}
+
+func (c *Cli) Stage(cfgPath string) (string, error) {
+	stage := c.String("stage")
+	if stage == "" {
+		stage = os.Getenv("SST_STAGE")
+		if stage == "" {
+			stage = project.LoadPersonalStage(cfgPath)
+			if stage == "" {
+				stage = guessStage()
+				if stage == "" {
+					err := huh.NewForm(
+						huh.NewGroup(
+							huh.NewInput().Title(" Enter name for your personal stage").Prompt(" > ").Value(&stage).Validate(func(v string) error {
+								if project.InvalidStageRegex.MatchString(v) {
+									return fmt.Errorf("Invalid stage name")
+								}
+								return nil
+							}),
+						),
+					).WithTheme(huh.ThemeCatppuccin()).Run()
+					if err != nil {
+						return "", err
+					}
+				}
+				err := project.SetPersonalStage(cfgPath, stage)
+				if err != nil {
+					return "", err
+				}
+			}
+		}
+	}
+	godotenv.Load(fmt.Sprintf(".env.%s", stage))
+	return stage, nil
+}
+
+func guessStage() string {
+	u, err := user.Current()
+	if err != nil {
+		return ""
+	}
+	stage := strings.ToLower(u.Username)
+	stage = project.InvalidStageRegex.ReplaceAllString(stage, "")
+
+	if stage == "root" || stage == "admin" || stage == "prod" || stage == "dev" || stage == "production" {
+		return ""
+	}
+	return stage
+}