mirror of
https://github.com/siyuan-note/siyuan.git
synced 2025-05-02 22:52:16 +08:00
292 lines
6.8 KiB
Go
292 lines
6.8 KiB
Go
// SiYuan - Build Your Eternal Digital Garden
|
|
// Copyright (c) 2020-present, b3log.org
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
package treenode
|
|
|
|
import (
|
|
"io"
|
|
"os"
|
|
"runtime/debug"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/88250/gulu"
|
|
"github.com/88250/lute/ast"
|
|
"github.com/88250/lute/parse"
|
|
"github.com/dustin/go-humanize"
|
|
"github.com/siyuan-note/logging"
|
|
"github.com/siyuan-note/siyuan/kernel/util"
|
|
"github.com/vmihailenco/msgpack/v5"
|
|
)
|
|
|
|
var blockTrees = map[string]*BlockTree{}
|
|
var blockTreesLock = sync.Mutex{}
|
|
var blockTreesChanged = false
|
|
|
|
type BlockTree struct {
|
|
ID string // 块 ID
|
|
RootID string // 根 ID
|
|
ParentID string // 父 ID
|
|
BoxID string // 笔记本 ID
|
|
Path string // 文档物理路径
|
|
HPath string // 文档逻辑路径
|
|
}
|
|
|
|
func CountTrees() (ret int) {
|
|
roots := map[string]bool{}
|
|
for _, b := range blockTrees {
|
|
roots[b.RootID] = true
|
|
}
|
|
ret = len(roots)
|
|
return
|
|
}
|
|
|
|
func CountBlocks() (ret int) {
|
|
return len(blockTrees)
|
|
}
|
|
|
|
func GetBlockTreeRootByPath(boxID, path string) *BlockTree {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
for _, blockTree := range blockTrees {
|
|
if blockTree.BoxID == boxID && blockTree.Path == path && blockTree.RootID == blockTree.ID {
|
|
return blockTree
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func GetBlockTreeRootByHPath(boxID, hPath string) *BlockTree {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
for _, blockTree := range blockTrees {
|
|
if blockTree.BoxID == boxID && blockTree.HPath == hPath && blockTree.RootID == blockTree.ID {
|
|
return blockTree
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func GetBlockTree(id string) *BlockTree {
|
|
if "" == id {
|
|
return nil
|
|
}
|
|
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
return blockTrees[id]
|
|
}
|
|
|
|
func SetBlockTreePath(tree *parse.Tree) {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
for _, b := range blockTrees {
|
|
if b.RootID == tree.ID {
|
|
b.BoxID, b.Path, b.HPath = tree.Box, tree.Path, tree.HPath
|
|
}
|
|
}
|
|
blockTreesChanged = true
|
|
}
|
|
|
|
func RemoveBlockTreesByRootID(rootID string) {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
var ids []string
|
|
for _, b := range blockTrees {
|
|
if b.RootID == rootID {
|
|
ids = append(ids, b.RootID)
|
|
}
|
|
}
|
|
for _, id := range ids {
|
|
delete(blockTrees, id)
|
|
}
|
|
blockTreesChanged = true
|
|
}
|
|
|
|
func RemoveBlockTreesByPathPrefix(pathPrefix string) {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
var ids []string
|
|
for _, b := range blockTrees {
|
|
if strings.HasPrefix(b.Path, pathPrefix) {
|
|
ids = append(ids, b.ID)
|
|
}
|
|
}
|
|
for _, id := range ids {
|
|
delete(blockTrees, id)
|
|
}
|
|
blockTreesChanged = true
|
|
}
|
|
|
|
func RemoveBlockTreesByBoxID(boxID string) {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
var ids []string
|
|
for _, b := range blockTrees {
|
|
if b.BoxID == boxID {
|
|
ids = append(ids, b.ID)
|
|
}
|
|
}
|
|
for _, id := range ids {
|
|
delete(blockTrees, id)
|
|
}
|
|
blockTreesChanged = true
|
|
}
|
|
|
|
func RemoveBlockTree(id string) {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
delete(blockTrees, id)
|
|
blockTreesChanged = true
|
|
}
|
|
|
|
func ReindexBlockTree(tree *parse.Tree) {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
var ids []string
|
|
for _, b := range blockTrees {
|
|
if b.RootID == tree.ID {
|
|
ids = append(ids, b.ID)
|
|
}
|
|
}
|
|
for _, id := range ids {
|
|
delete(blockTrees, id)
|
|
}
|
|
|
|
ast.Walk(tree.Root, func(n *ast.Node, entering bool) ast.WalkStatus {
|
|
if !entering || !n.IsBlock() {
|
|
return ast.WalkContinue
|
|
}
|
|
var parentID string
|
|
if nil != n.Parent {
|
|
parentID = n.Parent.ID
|
|
}
|
|
if "" == n.ID {
|
|
return ast.WalkContinue
|
|
}
|
|
blockTrees[n.ID] = &BlockTree{ID: n.ID, ParentID: parentID, RootID: tree.ID, BoxID: tree.Box, Path: tree.Path, HPath: tree.HPath}
|
|
return ast.WalkContinue
|
|
})
|
|
blockTreesChanged = true
|
|
}
|
|
|
|
func IndexBlockTree(tree *parse.Tree) {
|
|
blockTreesLock.Lock()
|
|
defer blockTreesLock.Unlock()
|
|
|
|
ast.Walk(tree.Root, func(n *ast.Node, entering bool) ast.WalkStatus {
|
|
if !entering || !n.IsBlock() {
|
|
return ast.WalkContinue
|
|
}
|
|
var parentID string
|
|
if nil != n.Parent {
|
|
parentID = n.Parent.ID
|
|
}
|
|
if "" == n.ID {
|
|
return ast.WalkContinue
|
|
}
|
|
blockTrees[n.ID] = &BlockTree{ID: n.ID, ParentID: parentID, RootID: tree.ID, BoxID: tree.Box, Path: tree.Path, HPath: tree.HPath}
|
|
return ast.WalkContinue
|
|
})
|
|
|
|
// 新建索引不变更持久化文件，调用处会负责调用 SaveBlockTree()
|
|
}
|
|
|
|
func AutoFlushBlockTree() {
|
|
for {
|
|
if blockTreesChanged {
|
|
SaveBlockTree()
|
|
blockTreesChanged = false
|
|
}
|
|
time.Sleep(7 * time.Second)
|
|
}
|
|
}
|
|
|
|
func InitBlockTree(force bool) {
|
|
start := time.Now()
|
|
|
|
if force {
|
|
err := os.RemoveAll(util.BlockTreePath)
|
|
if nil != err {
|
|
logging.LogErrorf("remove blocktree file failed: %s", err)
|
|
}
|
|
return
|
|
}
|
|
|
|
var err error
|
|
fh, err := os.OpenFile(util.BlockTreePath, os.O_RDWR, 0644)
|
|
if nil != err {
|
|
logging.LogErrorf("open block tree file failed: %s", err)
|
|
os.Exit(util.ExitCodeBlockTreeErr)
|
|
return
|
|
}
|
|
defer fh.Close()
|
|
|
|
data, err := io.ReadAll(fh)
|
|
if nil != err {
|
|
logging.LogErrorf("read block tree failed: %s", err)
|
|
os.Exit(util.ExitCodeBlockTreeErr)
|
|
return
|
|
}
|
|
blockTreesLock.Lock()
|
|
if err = msgpack.Unmarshal(data, &blockTrees); nil != err {
|
|
logging.LogErrorf("unmarshal block tree failed: %s", err)
|
|
if err = os.RemoveAll(util.BlockTreePath); nil != err {
|
|
logging.LogErrorf("removed corrupted block tree failed: %s", err)
|
|
}
|
|
os.Exit(util.ExitCodeBlockTreeErr)
|
|
return
|
|
}
|
|
blockTreesLock.Unlock()
|
|
debug.FreeOSMemory()
|
|
if elapsed := time.Since(start).Seconds(); 2 < elapsed {
|
|
logging.LogWarnf("read block tree [%s] to [%s], elapsed [%.2fs]", humanize.Bytes(uint64(len(data))), util.BlockTreePath, elapsed)
|
|
}
|
|
return
|
|
}
|
|
|
|
func SaveBlockTree() {
|
|
start := time.Now()
|
|
|
|
blockTreesLock.Lock()
|
|
data, err := msgpack.Marshal(blockTrees)
|
|
if nil != err {
|
|
logging.LogErrorf("marshal block tree failed: %s", err)
|
|
os.Exit(util.ExitCodeBlockTreeErr)
|
|
return
|
|
}
|
|
blockTreesLock.Unlock()
|
|
|
|
if err = gulu.File.WriteFileSafer(util.BlockTreePath, data, 0644); nil != err {
|
|
logging.LogErrorf("write block tree failed: %s", err)
|
|
os.Exit(util.ExitCodeBlockTreeErr)
|
|
return
|
|
}
|
|
debug.FreeOSMemory()
|
|
if elapsed := time.Since(start).Seconds(); 2 < elapsed {
|
|
logging.LogWarnf("save block tree [size=%s] to [%s], elapsed [%.2fs]", humanize.Bytes(uint64(len(data))), util.BlockTreePath, elapsed)
|
|
}
|
|
}
|