Add upload space check and update version to v4.0.0

Introduced a check to skip uploading files that exceed the user's available space for files larger than 64MB. Updated version references to v4.0.0 in README, main.go, and versioninfo.json. Minor documentation and config table formatting improvements.

Author: qjfoidnh

README.md

@@ -95,7 +95,7 @@ iikira/BaiduPCS-Go was largely inspired by [GangZhuo/BaiduPCS](https://github.co
 [离线下载](#离线下载), 支持http/https/ftp/电驴/磁力链协议.
 # 版本更新
 
-**2025.10.28** v4.0.0
+**2025.10.29** v4.0.0
 - 上传重新支持跳过秒传`--norapid`
 - 上传同名文件覆盖策略`--policy`支持`skip`,`overwrite`,`rsync`; 支持`config`配置全局默认策略
 - 因接口变化上传不再支持断点续传, 下载不受影响

baidupcs/quota.go

@@ -30,3 +30,24 @@ func (pcs *BaiduPCS) QuotaInfo() (quota, used int64, pcsError pcserror.Error) {
 
 	return quotaInfo.Quota, quotaInfo.Used, nil
 }
+
+// SpaceLeftInfo 获取当前用户剩余空间
+func (pcs *BaiduPCS) SpaceLeftInfo() (free int64, pcsError pcserror.Error) {
+	dataReadCloser, pcsError := pcs.PrepareQuotaInfo()
+	if pcsError != nil {
+		return
+	}
+
+	defer dataReadCloser.Close()
+
+	quotaInfo := &quotaInfo{
+		PCSErrInfo: pcserror.NewPCSErrorInfo(OperationQuotaInfo),
+	}
+
+	pcsError = pcserror.HandleJSONParse(OperationQuotaInfo, dataReadCloser, quotaInfo)
+	if pcsError != nil {
+		return
+	}
+
+	return quotaInfo.Quota - quotaInfo.Used, nil
+}

baidupcs/upload.go

@@ -30,6 +30,8 @@ const (
 	MiddleUploadThreshold = 8 * converter.GB
 	// MaxUploadThreshold 最大分片对应的文件大小
 	MaxUploadThreshold = 32 * converter.GB
+	// MinCheckLeftSpaceThreshold 需要检查剩余空间是否足够的最小文件大小
+	MinCheckLeftSpaceThreshold = 64 * converter.MB
 )
 
 var (

internal/pcsconfig/export.go

@@ -73,7 +73,7 @@ func (c *PCSConfig) PrintTable() {
 		[]string{"max_download_load", strconv.Itoa(c.MaxDownloadLoad), "1 ~ 5", "同时进行下载文件的最大数量"},
 		[]string{"max_download_rate", showMaxRate(c.MaxDownloadRate), "", "限制最大下载速度, 0代表不限制"},
 		[]string{"max_upload_rate", showMaxRate(c.MaxUploadRate), "", "限制最大上传速度, 0代表不限制"},
-		[]string{"max_upload_load", strconv.Itoa(c.MaxUploadLoad), "1-4", "同时进行上传文件的最大数量"},
+		[]string{"max_upload_load", strconv.Itoa(c.MaxUploadLoad), "1 ~ 4", "同时进行上传文件的最大数量"},
 		[]string{"savedir", c.SaveDir, "", "下载文件的储存目录"},
 		[]string{"enable_https", fmt.Sprint(c.EnableHTTPS), "true", "启用 https"},
 		[]string{"force_login_username", fmt.Sprint(c.ForceLogin), "留空", "强制登录指定用户名, 适用于tieba用户信息接口不可用的情况, 如登录正常请留空"},

internal/pcsfunctions/pcsupload/upload_task_unit.go

@@ -91,6 +91,15 @@ func (utu *UploadTaskUnit) prepareFile() {
 		fmt.Printf("[%s] 文件超过32GB, 上传有可能失败, 建议分割文件...\n", utu.taskInfo.Id())
 	}
 
+	if utu.LocalFileChecksum.Length > baidupcs.MinCheckLeftSpaceThreshold {
+		freeSpace, err := utu.PCS.SpaceLeftInfo()
+		if err == nil && freeSpace < utu.LocalFileChecksum.Length {
+			fmt.Printf("[%s] 目标文件大小超过剩余空间, 跳过...\n", utu.taskInfo.Id())
+			utu.Step = JustGoon
+			return
+		}
+	}
+
 	if utu.NoRapidUpload {
 		//fmt.Printf("[%s] 注意: 跳过秒传将无法使用断点续传...\n", utu.taskInfo.Id())
 		pcsError, jsonData := utu.PCS.FakeRapidUpload(utu.SavePath, utu.Policy, utu.LocalFileChecksum.Length)

main.go

@@ -55,7 +55,7 @@ const (
 
 var (
 	// Version 版本号
-	Version = "v3.9.9-devel"
+	Version = "v4.0.0-stable"
 
 	historyFilePath = filepath.Join(pcsconfig.GetConfigDir(), "pcs_command_history.txt")
 	reloadFn        = func(c *cli.Context) error {

versioninfo.json

@@ -1,15 +1,15 @@
 {
     "FixedFileInfo": {
         "FileVersion": {
-            "Major": 3,
-            "Minor": 9,
-            "Patch": 9,
+            "Major": 4,
+            "Minor": 0,
+            "Patch": 0,
             "Build": 0
         },
         "ProductVersion": {
-            "Major": 3,
-            "Minor": 9,
-            "Patch": 9,
+            "Major": 4,
+            "Minor": 0,
+            "Patch": 0,
             "Build": 0
         },
         "FileFlagsMask": "3f",
@@ -22,14 +22,14 @@
         "Comments": "",
         "CompanyName": "qjfoidnh",
         "FileDescription": "百度网盘客户端(加强版)",
-        "FileVersion": "v3.9.9",
+        "FileVersion": "v4.0.0",
         "InternalName": "",
         "LegalCopyright": "© 2018-2025 qjfoidnh.",
         "LegalTrademarks": "",
         "OriginalFilename": "",
         "PrivateBuild": "",
         "ProductName": "BaiduPCS-Go",
-        "ProductVersion": "v3.9.9",
+        "ProductVersion": "v4.0.0",
         "SpecialBuild": ""
     },
     "VarFileInfo": {