問題場景：
1 記得提交的日志信息中包含openssl，但是不記得這次提交的版本號revesion，是svn初始化后中間的某次提交；
2 svn環境的操作系統平台為Fedora, 即命令行下；而且svn log的提交記錄有12659條；
[root@localhost v2.1]# svn log | grep r | wc -l
12659
解決辦法：
step1 查找提交日志信息對應的版本號 r33178
[root@localhost v2.1]# svn log --search openssl ------------------------------------------------------------------------ r33183 | somebody | 2019-01-24 15:59:21 +0800 (Thu, 24 Jan 2019) | 1 line delete fc28 openssl ------------------------------------------------------------------------ r33178 | somebody | 2019-01-24 12:48:31 +0800 (Thu, 24 Jan 2019) | 1 line add openssl refers packages ------------------------------------------------------------------------
step2: 確定現在最新的版本號 r33205
[root@localhost v2.1]# svn log -l 2 ------------------------------------------------------------------------ r33205 | somebody | 2019-02-19 17:20:27 +0800 (Tue, 19 Feb 2019) | 1 line Tue Feb 19 17:20:27 CST 2019 ------------------------------------------------------------------------ r33204 | somebody | 2019-02-19 17:20:26 +0800 (Tue, 19 Feb 2019) | 1 line Tue Feb 19 17:20:26 CST 2019 ------------------------------------------------------------------------
step3: 合並改版本內容到目版本中
svn merge -r 33205:33178 "" ........ C openssl-devel-1.1.0h-3.fc28.i686.rpm C openssl-libs-1.1.0h-3.fc28.i686.rpm C openssl-pkcs11-0.4.7-6.fc28.i686.rpm C openssl-static-1.1.0h-3.fc28.i686.rpm --- Recording mergeinfo for reverse merge of r33205 through r33179 into '.':
step4: 提交合並內容到版本中
svn commit -m "recover revison-33178 to latest revision "