feat: 新增 proc nohup 后台运行、docker save/load 内置实现，移除 Podman 支持

- proc.nohup：后台运行命令并将 stdout/stderr 追加写入日志， Unix 下新会话、Windows 下 DETACHED_PROCESS 脱离终端 - docker.save：等价 docker save <镜像> -o <镜像名>.tar，文件名按仓库名+标签生成（alpine:3.20 → alpine_3.20.tar），传镜像 ID 时先解析出对应名称；docker.load 改为归档文件作位置参数 - 移除 Podman 支持，所有容器命令只走 docker
2026-11-01 07:47:57 +08:00
parent 6002a3afd1
commit bd6f20d7c5
19 changed files with 1551 additions and 120 deletions
@@ -0,0 +1,243 @@
+//go:build !windows
+
+package executor
+
+import (
+	"bytes"
+	"context"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestArchiveName(t *testing.T) {
+	cases := map[string]string{
+		"alpine:3.20":                       "alpine_3.20.tar",
+		"alpine":                            "alpine.tar",
+		"nginx:1.25.3":                      "nginx_1.25.3.tar",
+		"registry.example.com:5000/app:1.0": "registry.example.com_5000_app_1.0.tar",
+		"team/app:latest":                   "team_app_latest.tar",
+		"alpine@sha256:abc":                 "alpine_sha256_abc.tar",
+	}
+	for in, want := range cases {
+		if got := archiveName(in); got != want {
+			t.Errorf("archiveName(%q) = %q, want %q", in, got, want)
+		}
+	}
+}
+
+func TestLooksLikeImageID(t *testing.T) {
+	yes := []string{
+		"sha256:9c6f07244728", "9c6f07244728", "9C6F07244728",
+		"sha256:9c6f0724472892f3061e",
+	}
+	for _, in := range yes {
+		if !looksLikeImageID(in) {
+			t.Errorf("looksLikeImageID(%q) = false, want true", in)
+		}
+	}
+	no := []string{"alpine", "alpine:3.20", "nginx:1.25", "", "abc"}
+	for _, in := range no {
+		if looksLikeImageID(in) {
+			t.Errorf("looksLikeImageID(%q) = true, want false", in)
+		}
+	}
+}
+
+// fakeRuntime installs a script called docker on PATH. images is the
+// `images --format` payload; every invocation is appended to the returned log
+// file as one line.
+func fakeRuntime(t *testing.T, images string) (logPath string) {
+	t.Helper()
+	dir := t.TempDir()
+	logPath = filepath.Join(dir, "calls.log")
+
+	script := "#!/bin/sh\n" +
+		"printf '%s' \"$0\" >> " + logPath + ".name\n" +
+		"echo \"$*\" >> " + logPath + "\n" +
+		"case \"$1\" in\n" +
+		"  images) cat <<'EOF'\n" + images + "\nEOF\n" +
+		"    ;;\n" +
+		"esac\n"
+	if err := os.WriteFile(filepath.Join(dir, "docker"), []byte(script), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	t.Setenv("PATH", dir+string(os.PathListSeparator)+os.Getenv("PATH"))
+	return logPath
+}
+
+func imageList() string {
+	return strings.Join([]string{
+		"IMAGE ID\tREPOSITORY\tTAG\tDIGEST",
+		"9c6f07244728\talpine\t3.20\t",
+		"9c6f07244728\talpine\tlatest\t",
+		"5ca7b1d5e2fc\tnginx\t1.25.3\t",
+		"1b9a2c3d4e5f\tregistry.example.com:5000/team/app\t1.0\t",
+		"7d3e5f7a9b1c\t<none>\t<none>\t",
+	}, "\n")
+}
+
+func calls(t *testing.T, logPath string) []string {
+	t.Helper()
+	data, err := os.ReadFile(logPath)
+	if err != nil {
+		return nil
+	}
+	var out []string
+	for _, line := range strings.Split(string(data), "\n") {
+		if line = strings.TrimSpace(line); line != "" {
+			out = append(out, line)
+		}
+	}
+	return out
+}
+
+func TestDockerSaveNamesArchiveAfterTag(t *testing.T) {
+	logPath := fakeRuntime(t, imageList())
+
+	var out bytes.Buffer
+	if err := runDockerSave(context.Background(), BuiltinRequest{
+		Args:   []string{"alpine:3.20"},
+		Stdout: &out,
+	}); err != nil {
+		t.Fatalf("save: %v", err)
+	}
+
+	if !strings.Contains(out.String(), "alpine:3.20") || !strings.Contains(out.String(), "alpine_3.20.tar") {
+		t.Errorf("summary = %q", out.String())
+	}
+	got := calls(t, logPath)
+	want := "save -o alpine_3.20.tar alpine:3.20"
+	if len(got) < 2 || got[1] != want {
+		t.Fatalf("calls = %q, want a %q invocation", got, want)
+	}
+}
+
+func TestDockerSaveResolvesImageIDToName(t *testing.T) {
+	for _, id := range []string{"5ca7b1d5e2fc", "sha256:5ca7b1d5e2fc", "5ca7"} {
+		logPath := fakeRuntime(t, imageList())
+		var out bytes.Buffer
+		if err := runDockerSave(context.Background(), BuiltinRequest{Args: []string{id}, Stdout: &out}); err != nil {
+			t.Fatalf("save %q: %v", id, err)
+		}
+		got := calls(t, logPath)
+		want := "save -o nginx_1.25.3.tar " + id
+		if len(got) < 2 || got[1] != want {
+			t.Errorf("image %q: calls = %q, want %q", id, got, want)
+		}
+		if !strings.Contains(out.String(), "nginx_1.25.3.tar") {
+			t.Errorf("image %q: summary = %q", id, out.String())
+		}
+	}
+}
+
+func TestDockerSaveRegistryWithPortKeepsName(t *testing.T) {
+	fakeRuntime(t, imageList())
+	var out bytes.Buffer
+	if err := runDockerSave(context.Background(), BuiltinRequest{
+		Args:   []string{"registry.example.com:5000/team/app:1.0"},
+		Stdout: &out,
+	}); err != nil {
+		t.Fatalf("save: %v", err)
+	}
+	if !strings.Contains(out.String(), "registry.example.com_5000_team_app_1.0.tar") {
+		t.Fatalf("summary = %q", out.String())
+	}
+}
+
+func TestDockerSaveRejectsUntaggedImage(t *testing.T) {
+	fakeRuntime(t, imageList())
+	err := runDockerSave(context.Background(), BuiltinRequest{Args: []string{"7d3e5f7a9b1c"}})
+	if err == nil || !strings.Contains(err.Error(), "没有名称") {
+		t.Fatalf("err = %v, want untagged-image error", err)
+	}
+}
+
+func TestDockerSaveRejectsUnknownAndExtraImages(t *testing.T) {
+	fakeRuntime(t, imageList())
+	err := runDockerSave(context.Background(), BuiltinRequest{Args: []string{"busybox:1"}})
+	if err == nil || !strings.Contains(err.Error(), "本地没有镜像") {
+		t.Fatalf("err = %v, want unknown-image error", err)
+	}
+
+	err = runDockerSave(context.Background(), BuiltinRequest{Args: []string{"alpine:3.20", "nginx:1.25.3"}})
+	if err == nil || !strings.Contains(err.Error(), "一次只能保存一个镜像") {
+		t.Fatalf("err = %v, want single-image error", err)
+	}
+
+	err = runDockerSave(context.Background(), BuiltinRequest{})
+	if err == nil || !strings.Contains(err.Error(), "缺少镜像") {
+		t.Fatalf("err = %v, want missing-image error", err)
+	}
+}
+
+func TestDockerSaveForwardsPlatformFlag(t *testing.T) {
+	logPath := fakeRuntime(t, imageList())
+	var out bytes.Buffer
+	if err := runDockerSave(context.Background(), BuiltinRequest{
+		Args:   []string{"--platform", "linux/arm64", "alpine:3.20"},
+		Stdout: &out,
+	}); err != nil {
+		t.Fatalf("save: %v", err)
+	}
+	got := calls(t, logPath)
+	want := "save -o alpine_3.20.tar alpine:3.20 --platform linux/arm64"
+	if len(got) < 2 || got[1] != want {
+		t.Fatalf("calls = %q, want %q", got, want)
+	}
+}
+
+func TestDockerLoadTakesArchiveAsPositional(t *testing.T) {
+	dir := t.TempDir()
+	archive := filepath.Join(dir, "alpine_3.20.tar")
+	if err := os.WriteFile(archive, []byte("x"), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	for _, args := range [][]string{
+		{archive},
+		{"-i", archive},
+		{"--input=" + archive},
+		{"--", archive},
+		{archive, "-q"},
+	} {
+		logPath := fakeRuntime(t, "")
+		if err := runDockerLoad(context.Background(), BuiltinRequest{Args: args}); err != nil {
+			t.Fatalf("load %v: %v", args, err)
+		}
+		got := calls(t, logPath)
+		joined := strings.Join(got, "|")
+		if !strings.Contains(joined, "load") || !strings.Contains(joined, "-i "+archive) {
+			t.Errorf("load %v produced calls %q", args, got)
+		}
+		if strings.Contains(joined, "<") {
+			t.Errorf("load %v must not rely on a shell redirect: %q", args, got)
+		}
+	}
+}
+
+func TestDockerLoadRejectsMissingArchive(t *testing.T) {
+	fakeRuntime(t, "")
+	for _, args := range [][]string{{}, {"-i"}, {filepath.Join(t.TempDir(), "nope.tar")}, {t.TempDir()}} {
+		err := runDockerLoad(context.Background(), BuiltinRequest{Args: args})
+		if err == nil {
+			t.Errorf("load %v: expected an error", args)
+		}
+	}
+	if err := runDockerLoad(context.Background(), BuiltinRequest{Args: []string{"missing.tar"}}); err == nil ||
+		!strings.Contains(err.Error(), "无法读取归档文件") {
+		t.Errorf("missing archive err = %v", err)
+	}
+}
+
+func TestDockerLoadFromStdin(t *testing.T) {
+	logPath := fakeRuntime(t, "")
+	if err := runDockerLoad(context.Background(), BuiltinRequest{Args: []string{"-"}}); err != nil {
+		t.Fatalf("load -: %v", err)
+	}
+	got := calls(t, logPath)
+	if len(got) != 1 || got[0] != "load" {
+		t.Fatalf("calls = %q, want a single bare `load`", got)
+	}
+}