修正：当当天提交数为0时，以最后一次提交日期重新生成mmdd.id值。

GitVer/GitVer_version.cpp

@@ -122,16 +122,14 @@ BOOL GetLastMajorMinorTag(LPCTSTR lpRepoPath, const CString& strBranch, CString&
 	return !strTag.IsEmpty();
 }
 
-void GetTodayFileVersionDate(UINT& nYY, UINT& nMMDD)
+void GetFileVersionDateFromSystemTime(const SYSTEMTIME& stLocal, UINT& nYY, UINT& nMMDD)
 {
-	SYSTEMTIME stLocal = { 0 };
-	::GetLocalTime(&stLocal);
-
 	nYY = stLocal.wYear % 100;
+	// 为了让版本号对齐4位，月份从1-12映射到11-22;
 	nMMDD = (stLocal.wMonth + 10) * 100 + stLocal.wDay;
 }
 
-BOOL GetTodayBranchCommitCount(LPCTSTR lpRepoPath, const CString& strBranch, UINT& nId)
+BOOL TryGetBranchCommitCountByDate(LPCTSTR lpRepoPath, const CString& strBranch, const SYSTEMTIME& stDate, UINT& nId)
 {
 	nId = 0;
 	if (strBranch.IsEmpty())
@@ -139,11 +137,8 @@ BOOL GetTodayBranchCommitCount(LPCTSTR lpRepoPath, const CString& strBranch, UIN
 		return FALSE;
 	}
 
-	SYSTEMTIME stLocal = { 0 };
-	::GetLocalTime(&stLocal);
-
 	CString strDate;
-	strDate.Format(_T("%04u-%02u-%02u"), stLocal.wYear, stLocal.wMonth, stLocal.wDay);
+	strDate.Format(_T("%04u-%02u-%02u"), stDate.wYear, stDate.wMonth, stDate.wDay);
 
 	CString strCmd;
 	strCmd.Format(
@@ -172,6 +167,93 @@ BOOL GetTodayBranchCommitCount(LPCTSTR lpRepoPath, const CString& strBranch, UIN
 	return TryParseUInt16(strCount, nId);
 }
 
+BOOL TryGetLastBranchCommitDate(LPCTSTR lpRepoPath, const CString& strBranch, SYSTEMTIME& stDate)
+{
+	::ZeroMemory(&stDate, sizeof(stDate));
+	if (strBranch.IsEmpty())
+	{
+		return FALSE;
+	}
+
+	CString strCmd;
+	strCmd.Format(_T("cmd /c git log -1 --date=short --format=%%cd \"%s\""), strBranch.GetString());
+
+	CString strDate = StartProcess(NULL, strCmd.GetBuffer(), lpRepoPath);
+	strCmd.ReleaseBuffer();
+
+	if (strDate.IsEmpty())
+	{
+		return FALSE;
+	}
+
+	strDate.Replace(_T("\r"), _T(""));
+	strDate.Replace(_T("\n"), _T(""));
+	strDate.Trim();
+
+	if (strDate.IsEmpty() || strDate.Left(6).CompareNoCase(_T("fatal:")) == 0)
+	{
+		return FALSE;
+	}
+
+	unsigned int nYear = 0;
+	unsigned int nMonth = 0;
+	unsigned int nDay = 0;
+	if (_stscanf_s(strDate.GetString(), _T("%u-%u-%u"), &nYear, &nMonth, &nDay) != 3)
+	{
+		return FALSE;
+	}
+
+	stDate.wYear = static_cast<WORD>(nYear);
+	stDate.wMonth = static_cast<WORD>(nMonth);
+	stDate.wDay = static_cast<WORD>(nDay);
+	return TRUE;
+}
+
+BOOL ResolveFileVersionDateAndCommitCount(LPCTSTR lpRepoPath, const CString& strBranch, UINT& nYY, UINT& nMMDD, UINT& nId)
+{
+	nYY = 0;
+	nMMDD = 0;
+	nId = 0;
+
+	SYSTEMTIME stTargetDate = { 0 };
+	::GetLocalTime(&stTargetDate);
+
+	UINT nTodayCommitCount = 0;
+	if (!TryGetBranchCommitCountByDate(lpRepoPath, strBranch, stTargetDate, nTodayCommitCount))
+	{
+		_tprintf(_T("错误: 获取当天提交数量失败\n"));
+		return FALSE;
+	}
+
+	if (nTodayCommitCount == 0)
+	{
+		_tprintf(_T("当天提交数量为0，将获取最后一次提交日期\n"));
+
+		if (!TryGetLastBranchCommitDate(lpRepoPath, strBranch, stTargetDate))
+		{
+			_tprintf(_T("错误: 获取最后一次提交日期失败\n"));
+			return FALSE;
+		}
+
+		if (!TryGetBranchCommitCountByDate(lpRepoPath, strBranch, stTargetDate, nTodayCommitCount))
+		{
+			_tprintf(_T("错误: 获取[%s]提交数量失败\n"), strBranch.GetString());
+			return FALSE;
+		}
+
+		_tprintf(_T("获取到最后一次提交日期: %04u-%02u-%02u, 提交数量: %u\n"),
+			stTargetDate.wYear, stTargetDate.wMonth, stTargetDate.wDay, nTodayCommitCount);
+	}
+	else
+	{
+		_tprintf(_T("获取到当天提交数量: %u\n"), nTodayCommitCount);
+	}
+
+	GetFileVersionDateFromSystemTime(stTargetDate, nYY, nMMDD);
+	nId = nTodayCommitCount;
+	return TRUE;
+}
+
 int BuildVersionsFromRepo(
 	LPCTSTR lpRepoPath,
 	UINT nPid,
@@ -200,7 +282,7 @@ int BuildVersionsFromRepo(
 
 	if (!TryGetBidFromBranch(strBranch, nBid))
 	{
-		_tprintf(_T("错误: 从分支获取 bid 失败。\n"));
+		_tprintf(_T("错误: 获取分支 bid 失败\n"));
 		return errorCodes.nBidErrorCode;
 	}
 	_tprintf(_T("分支 bid: %u\n"), nBid);
@@ -212,7 +294,7 @@ int BuildVersionsFromRepo(
 	{
 		if (!bUseDefaultTagWhenMissing)
 		{
-			_tprintf(_T("错误: 获取标签失败。\n"));
+			_tprintf(_T("错误: 获取标签失败\n"));
 			return errorCodes.nTagErrorCode;
 		}
 
@@ -222,23 +304,21 @@ int BuildVersionsFromRepo(
 	}
 	else
 	{
-		_tprintf(_T("命中最新标签: %s (major=%u minor=%u)\n"), strLastTag.GetString(), nMajor, nMinor);
+		_tprintf(_T("获取到的标签: %s (major=%u minor=%u)\n"), strLastTag.GetString(), nMajor, nMinor);
 	}
 
 	UINT nYY = 0;
 	UINT nMMDD = 0;
-	GetTodayFileVersionDate(nYY, nMMDD);
-
 	UINT nId = 0;
-	if (!GetTodayBranchCommitCount(lpRepoPath, strBranch, nId))
+	if (!ResolveFileVersionDateAndCommitCount(lpRepoPath, strBranch, nYY, nMMDD, nId))
 	{
-		_tprintf(_T("错误: 获取今日分支提交计数失败。\n"));
+		_tprintf(_T("错误: 获取分支提交信息失败\n"));
 		return errorCodes.nCommitErrorCode;
 	}
-	_tprintf(_T("今日提交计数: %u\n"), nId);
+	_tprintf(_T("分支提交信息: yy=%u mmdd=%u id=%u\n"), nYY, nMMDD, nId);
 
 	strProductVersion.Format(_T("%u.%u.%u.%u"), nPid, nBid, nMajor, nMinor);
 	strFileVersion.Format(_T("%u.%u.%u.%u"), nPid, nYY, nMMDD, nId);
-	_tprintf(_T("版本构建完成: ProductVersion=%s FileVersion=%s\n"), strProductVersion.GetString(), strFileVersion.GetString());
+	_tprintf(_T("文件版本信息: ProductVersion=%s FileVersion=%s\n"), strProductVersion.GetString(), strFileVersion.GetString());
 	return 0;
 }

GitVer/GitVer_version.h

@@ -11,8 +11,6 @@ BOOL TryGetCurrentBranch(LPCTSTR lpRepoPath, CString& strBranch);
 BOOL TryGetBidFromBranch(const CString& strBranch, UINT& nBid);
 BOOL TryParseTagMajorMinor(const CString& strBranch, const CString& strTag, UINT& nMajor, UINT& nMinor);
 BOOL GetLastMajorMinorTag(LPCTSTR lpRepoPath, const CString& strBranch, CString& strTag, UINT& nMajor, UINT& nMinor);
-void GetTodayFileVersionDate(UINT& nYY, UINT& nMMDD);
-BOOL GetTodayBranchCommitCount(LPCTSTR lpRepoPath, const CString& strBranch, UINT& nId);
 int BuildVersionsFromRepo(
 	LPCTSTR lpRepoPath,
 	UINT nPid,