odboy
84f7361396
- 注册表新增 Variant.Builtin 内置动作，与 Argv 互斥并参与平台匹配 - disk.usage 支持位置参数与 --path/--path=，输出按大小降序并带合计 - Unix 用设备号实现 -x 不跨文件系统，Windows 降级为不跟随 reparse point - list/help/explain 支持展示内置动作，补充单元与 CLI 测试、README
285 lines
7.9 KiB
Go
285 lines
7.9 KiB
Go
// Package cli builds the kopsc command tree from the registry.
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package cli
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import (
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"context"
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"fmt"
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"io"
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"os"
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"strings"
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"text/tabwriter"
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"github.com/spf13/cobra"
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"gitea.odboy.cn/odboy/kenaito-kopsc/internal/executor"
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"gitea.odboy.cn/odboy/kenaito-kopsc/internal/platform"
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"gitea.odboy.cn/odboy/kenaito-kopsc/internal/registry"
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"gitea.odboy.cn/odboy/kenaito-kopsc/internal/resolve"
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)
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// App wires a registry and a detected environment to a cobra command tree.
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type App struct {
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Registry *registry.Registry
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Info platform.Info
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Version string
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Stdin io.Reader
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Stdout io.Writer
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Stderr io.Writer
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}
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// New returns an App for the running process.
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func New(version string) *App {
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return &App{
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Registry: registry.Builtin(),
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Info: platform.System().Detect(),
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Version: version,
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Stdin: os.Stdin,
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Stdout: os.Stdout,
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Stderr: os.Stderr,
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}
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}
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// Execute runs the command tree and returns the process exit code.
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func (a *App) Execute(args []string) int {
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root := a.Root()
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root.SetArgs(args)
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if err := root.Execute(); err != nil {
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fmt.Fprintln(a.Stderr, "kopsc: "+err.Error())
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return executor.ExitCode(err)
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}
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return 0
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}
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// Root builds the full cobra command tree.
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func (a *App) Root() *cobra.Command {
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root := &cobra.Command{
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Use: "kopsc",
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Short: "跨平台命令助手：用统一的意图命令在各平台执行对应命令",
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Long: "kopsc 用平台无关的意图命令（如 docker clearsafe），根据操作系统、发行版与已安装的运行时，选择并执行对应的底层命令。",
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Version: a.Version,
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SilenceUsage: true,
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SilenceErrors: true,
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RunE: func(cmd *cobra.Command, args []string) error {
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return cmd.Help()
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},
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}
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root.SetOut(a.Stdout)
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root.SetErr(a.Stderr)
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root.SetIn(a.Stdin)
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for i := range a.Registry.Commands {
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a.addRegistryCommand(root, &a.Registry.Commands[i])
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}
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root.AddCommand(a.newListCmd(), a.newExplainCmd(), a.newPlatformCmd(), a.newVersionCmd())
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return root
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}
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// addRegistryCommand turns "docker.clearsafe" into `kopsc docker clearsafe`,
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// reusing intermediate commands for shared ID prefixes.
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func (a *App) addRegistryCommand(root *cobra.Command, cmd *registry.Command) {
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parts := strings.Split(cmd.ID, ".")
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parent := root
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for _, group := range parts[:len(parts)-1] {
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child := findChild(parent, group)
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if child == nil {
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groupName := group
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child = &cobra.Command{
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Use: groupName,
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Short: groupName + " 相关命令",
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RunE: func(c *cobra.Command, args []string) error {
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return c.Help()
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},
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}
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parent.AddCommand(child)
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}
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parent = child
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}
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leaf := a.newLeaf(cmd, parts[len(parts)-1])
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parent.AddCommand(leaf)
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}
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func findChild(parent *cobra.Command, name string) *cobra.Command {
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for _, child := range parent.Commands() {
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if child.Name() == name {
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return child
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}
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}
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return nil
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}
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// variantDisplay renders how a variant is executed, for list/help/explain.
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func variantDisplay(v registry.Variant) string {
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if v.Builtin != "" {
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return "(内置) " + v.Builtin
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}
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return strings.Join(v.Argv, " ")
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}
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func (a *App) newLeaf(cmd *registry.Command, name string) *cobra.Command {
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leaf := &cobra.Command{
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Use: name + " [--dry-run] [-h] [-- 透传参数...]",
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Short: cmd.Summary,
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Long: cmd.Summary + "\n\n动作: " + cmd.Action,
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DisableFlagParsing: true,
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RunE: func(c *cobra.Command, args []string) error {
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dryRun, extra, help := parseLeafArgs(args)
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if help {
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a.printLeafHelp(c.OutOrStdout(), cmd)
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return nil
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}
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result, err := resolve.Resolve(cmd, a.Info)
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if err != nil {
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return fmt.Errorf("%w（可用 `kopsc explain %s` 查看全部候选）", err, cmd.ID)
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}
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plan := executor.Plan{Result: result, ExtraArgs: extra}
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return plan.Run(context.Background(), executor.Options{
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DryRun: dryRun,
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Stdin: a.Stdin,
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Stdout: a.Stdout,
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Stderr: a.Stderr,
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})
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},
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}
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return leaf
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}
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// parseLeafArgs splits leaf arguments: kopsc-level flags before the first `--`
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// are consumed, everything else (including `--` and after) is forwarded.
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func parseLeafArgs(args []string) (dryRun bool, extra []string, help bool) {
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passthrough := false
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for _, arg := range args {
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if passthrough {
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extra = append(extra, arg)
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continue
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}
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switch {
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case arg == "--":
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passthrough = true
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case arg == "-n" || arg == "--dry-run" || arg == "--dry-run=true":
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dryRun = true
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case arg == "--dry-run=false":
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dryRun = false
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case arg == "-h" || arg == "--help":
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help = true
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default:
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extra = append(extra, arg)
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}
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}
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return dryRun, extra, help
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}
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func (a *App) printLeafHelp(w io.Writer, cmd *registry.Command) {
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invocation := "kopsc " + strings.ReplaceAll(cmd.ID, ".", " ")
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fmt.Fprintf(w, "用法: %s [--dry-run] [-h] [-- 透传参数...]\n\n", invocation)
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fmt.Fprintf(w, "%s\n\n", cmd.Summary)
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fmt.Fprintf(w, "动作: %s\n\n", cmd.Action)
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fmt.Fprintf(w, "当前平台: %s\n", resolve.DescribeInfo(a.Info))
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if result, err := resolve.Resolve(cmd, a.Info); err == nil {
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fmt.Fprintf(w, "将执行: %s\n\n", variantDisplay(result.Variant))
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} else {
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fmt.Fprintf(w, "当前平台不可用: %v\n\n", err)
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}
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fmt.Fprint(w, "选项:\n")
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fmt.Fprint(w, " -n, --dry-run 仅打印将执行的命令与判定依据，不执行\n")
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fmt.Fprint(w, " -h, --help 显示本帮助\n")
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fmt.Fprint(w, " -- 其后的参数原样透传给底层命令\n")
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}
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func (a *App) newListCmd() *cobra.Command {
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return &cobra.Command{
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Use: "list",
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Short: "列出全部命令及其在当前平台的可用性",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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tw := tabwriter.NewWriter(a.Stdout, 0, 0, 2, ' ', 0)
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fmt.Fprintln(tw, "命令\t状态\t将执行")
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for i := range a.Registry.Commands {
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entry := &a.Registry.Commands[i]
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status, planned := "可用", "-"
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if result, err := resolve.Resolve(entry, a.Info); err == nil {
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planned = variantDisplay(result.Variant)
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} else {
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status = "不可用"
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}
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fmt.Fprintf(tw, "%s\t%s\t%s\n", entry.ID, status, planned)
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}
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return tw.Flush()
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},
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}
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}
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func (a *App) newExplainCmd() *cobra.Command {
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return &cobra.Command{
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Use: "explain <命令>",
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Short: "解释某条命令在当前平台的匹配过程",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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entry, ok := a.Registry.Lookup(args[0])
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if !ok {
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return fmt.Errorf("未知命令 %q", args[0])
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}
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w := a.Stdout
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fmt.Fprintf(w, "命令: %s\n", entry.ID)
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fmt.Fprintf(w, "说明: %s\n", entry.Summary)
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fmt.Fprintf(w, "动作: %s\n", entry.Action)
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fmt.Fprintf(w, "平台: %s\n\n", resolve.DescribeInfo(a.Info))
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result, err := resolve.Resolve(entry, a.Info)
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if err != nil {
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fmt.Fprintf(w, "结果: 当前平台不可用 — %v\n\n", err)
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} else {
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fmt.Fprintf(w, "结果: 命中变体 #%d（%d 分）→ %s\n\n",
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result.VariantIdx, result.Score, variantDisplay(result.Variant))
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}
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fmt.Fprintln(w, "候选:")
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for _, c := range result.Candidates {
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mark := "✗"
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if c.Matched {
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mark = "✓"
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}
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note := ""
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if c.Variant.Note != "" {
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note = " # " + c.Variant.Note
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}
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fmt.Fprintf(w, " %s #%d %d 分 %s -> %s%s\n",
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mark, c.Index, c.Score, c.Reason, variantDisplay(c.Variant), note)
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}
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return nil
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},
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}
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}
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func (a *App) newPlatformCmd() *cobra.Command {
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return &cobra.Command{
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Use: "platform",
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Short: "显示探测到的当前平台信息",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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_, err := io.WriteString(a.Stdout, a.Info.String())
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return err
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},
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}
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}
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func (a *App) newVersionCmd() *cobra.Command {
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return &cobra.Command{
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Use: "version",
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Short: "显示版本与平台",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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_, err := fmt.Fprintf(a.Stdout, "kopsc %s %s/%s\n", a.Version, a.Info.OS, a.Info.Arch)
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return err
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},
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}
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}
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