feat(knowledge): index note relationships and maintain moved links

internal/vault/metadata_test.go

@@ -0,0 +1,75 @@
+package vault
+
+import (
+	"errors"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+func TestAnalyzeRelationshipsAndTags(t *testing.T) {
+	content := "---\ntags: [知识, daily]\n---\n# 标题\n正文 #读书 和 #tag/nested\n[笔记](../目标.md#章节) ![图片](a.assets/p.png) [引用][ref]\n\n[ref]: other.md\n\n`#code [伪](bad.md)`\n```\n#not-tag\n[fake](fake.md)\n```\n"
+	m := Analyze("dir/a.md", []byte(content))
+	if !reflect.DeepEqual(m.Tags, []string{"daily", "tag/nested", "知识", "读书"}) {
+		t.Fatalf("标签不符：%v", m.Tags)
+	}
+	if len(m.Links) != 2 || m.Links[0].Target != "目标.md" || m.Links[1].Target != "dir/other.md" || m.Links[0].Line != 6 {
+		t.Fatalf("链接不符：%+v", m.Links)
+	}
+	if len(m.Assets) != 1 || m.Assets[0].Target != "dir/a.assets/p.png" {
+		t.Fatalf("图片引用不符：%+v", m.Assets)
+	}
+	if len(m.Warnings) != 0 {
+		t.Fatal(m.Warnings)
+	}
+	for _, content := range []string{"---\ntags: [broken\n---\n", "---\ntags: {key: value}\n---", "---\ntags: 12\n---", "---\ntags: x"} {
+		if len(Analyze("x.md", []byte(content)).Warnings) == 0 {
+			t.Fatalf("无效元数据未报告：%s", content)
+		}
+	}
+}
+
+func TestMoveMaintainsIncomingAndOutgoingLinks(t *testing.T) {
+	v := newVault(t)
+	for p, body := range map[string]string{
+		"dir/a.md": "[外部](../other.md) [同级](b.md#section) ![](a.assets/p.png)\n`[不改](b.md)`\n",
+		"dir/b.md": "[入链](a.md?q=1#section)", "other.md": "[入链](dir/a.md)",
+	} {
+		if _, err := v.Write(p, []byte(body), Precondition{}); err != nil {
+			t.Fatal(err)
+		}
+	}
+	if _, err := v.SaveAsset("dir/a.md", "p.png", strings.NewReader("image"), 100); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := v.Move("dir/a.md", "new/renamed.md", nil); err != nil {
+		t.Fatal(err)
+	}
+	body, _, _ := v.Read("new/renamed.md")
+	if !strings.Contains(string(body), "../dir/b.md#section") || !strings.Contains(string(body), "renamed.assets/p.png") || !strings.Contains(string(body), "`[不改](b.md)`") {
+		t.Fatalf("出链错误：%s", body)
+	}
+	body, _, _ = v.Read("dir/b.md")
+	if string(body) != "[入链](../new/renamed.md?q=1#section)" {
+		t.Fatalf("入链错误：%s", body)
+	}
+	if _, err := v.Move("new", "deep/folder", nil); err != nil {
+		t.Fatal(err)
+	}
+	body, _, _ = v.Read("deep/folder/renamed.md")
+	if !strings.Contains(string(body), "../../other.md") {
+		t.Fatalf("目录出链错误：%s", body)
+	}
+	original, _, _ := v.Read("other.md")
+	failure := errors.New("提交失败")
+	if _, err := v.Move("deep/folder", "rollback", func() error { return failure }); !errors.Is(err, failure) {
+		t.Fatal(err)
+	}
+	body, _, _ = v.Read("other.md")
+	if string(body) != string(original) {
+		t.Fatalf("入链未回滚：%s", body)
+	}
+	if _, _, err := v.Read("deep/folder/renamed.md"); err != nil {
+		t.Fatal("移动主体未回滚", err)
+	}
+}