参考文章：解决：Linux上SVN 1.12版本以上无法直接存储明文密码_linux svn 保存密码-CSDN博客
新版本svn使用gpg-agent存储密码-CSDN博客
svn之无法让 SVN 存储密码，即使配置设置为允许_编程设计_ITGUEST

方法一：明文方式保存密码

首次执行svn check或svn update等命令后，会在系统用户目录下生成.subversion目录，并在.subversion/auth/svn.simple目录下生成SVN用户的配置文件，比如：cdf4a82409609b47a18c1b93ad8db39c，文件内容如下：

steven@ubuntu2204:~$ cat "~/.subversion/auth/svn.simple/cdf4a82409609b47a18c1b93ad8db39c"
K 8
passtype
V 9
gpg-agent
K 15
svn:realmstring
V 52
<https://192.168.121.240> Subversion Repository
K 8
username
V 6
steven
END

修改.subversion/auth/svn.simple/cdf4a82409609b47a18c1b93ad8db39c文件，如下：

steven@ubuntu2204:~$ vi "~/.subversion/auth/svn.simple/cdf4a82409609b47a18c1b93ad8db39c"
steven@ubuntu2204:~$ cat "~/.subversion/auth/svn.simple/cdf4a82409609b47a18c1b93ad8db39c"
K 8
passtype
V 6
simple
K 15
svn:realmstring
V 52
<https://192.168.121.240:5443> Subversion Repository
K 8
username
V 6
steven
K 8
password
V 7
pwd1234
END

修改说明：
1.文件中K表示关键字，V表示键值，后面的数字表示下一行字符串的长度。
2.将密码保存方式由gpg-agent改为simple(明文)
3.添加steven用户密码: pwd1234

需要注意的是：若是换个SVN用户名后这个文件会被改写，以上手动修改的信息会被覆盖，需要从再手动修改。

方式二：gpg-agent加密保存

gpg-agent是一个密码管理工具，具体说明查看官网信息。
https://www.gnupg.org/

1.安装gpg-agent：

steven@ubuntu2204:~$ sudo apt-get install gpg-agent
gpg-agent (GnuPG) 2.2.27
libgcrypt 1.8.8
Copyright (C) 2021 Free Software Foundation, Inc.
License GNU GPL-3.0-or-later <https://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

2.添加环境变量：

修改shell初始化脚本，添加GPG_TTY和GPG_AGENT_INFO两个环境变量。并使用source命令让其立即生效。

steven@ubuntu2204:~$ vi ~/.bashrc
steven@ubuntu2204:~$ cat ~/.bashrc
... ...
export GPG_TTY=$(tty)
export GPG_AGENT_INFO=`gpgconf --list-dirs agent-socket | tr -d '\n' && echo -n ::`
steven@ubuntu2204:~$ source ~/.bashrc

3.配置gpg-agent

steven@ubuntu2204:~$ vi "~/.gunpg/gpg-agent.conf"
steven@ubuntu2204:~$ cat "~/.gunpg/gpg-agent.conf"
# ╔═══════════════════════════════════════════════════════════════════════════╗
# ║ gpg-agent configuration (~/.gnupg/gpg-agent.conf)                         ║
# ║                                                                           ║
# ║ Note:                                                                     ║
# ║ After changing the configuration, reload the agent:                       ║
# ║   $ gpg-connect-agent reloadagent /bye                                    ║
# ╚═══════════════════════════════════════════════════════════════════════════╝# Time a cache entry is valid (in seconds) default: 600
# Each time a cache entry is accessed, the entry's timer is reset
default-cache-ttl 172800# Set the maximum time a cache entry is valid to n seconds.
# After this time a cache entry will be expired even if it has been accessed recently.
# The default is 2 hours (7200 seconds).
max-cache-ttl 604800steven@ubuntu2204:~$ gpg-connect-agent reloadagent /bye

4.删除旧的SVN账号信息

steven@ubuntu2204:~$ rm -rf ~/.subversion

5.执行效果

steven@ubuntu2204:~$ svn update svntest
Updating 'steven.hu/svntest':
Error validating server certificate for 'https://192.168.121.240':- The certificate is not issued by a trusted authority. Use thefingerprint to validate the certificate manually!- The certificate hostname does not match.
Certificate information:- Hostname: xxxx- Valid: from Mar 24 14:32:41 2020 GMT until Mar 22 14:32:41 2030 GMT- Issuer: xxx- Fingerprint: xxx
(R)eject, accept (t)emporarily or accept (p)ermanently? p
Authentication realm: <https://192.168.121.240> Subversion Repository
Password for 'steven': ┌─────────────────────────────────────────────────────────────────────────────────────────┐
│ Enter your Subversion password for <https://192.168.121.240:5443> Subversion Repository │
│                                                                                         │
│ Password for 'steven':  ******_________________________________________________________ │
│                                                                                         │
│             <OK>                                                     <Cancel>           │
└─────────────────────────────────────────────────────────────────────────────────────────┘At revision 39.
steven@ubuntu2204:~$ svn update svntest
Updating 'svntest':
At revision 39.
steven@ubuntu2204:~$