我添加并提交了两个符号链接到有意未提交的文件，它们指向不应该提交给svn的安全凭证。
# svn add submit.cer submit.pkey
A submit.cer
A submit.pkey
# svn commit submit.sh submit.cer submit.pkey -m "..."
Sending submit.sh
Adding submit.cer
Adding submit.pkey
Transmitting file data ...
Committed revision 19433.
svn: E200000: Commit succeeded, but other errors follow:
svn: E000002: Error bumping revisions post-commit (details follow):
svn: E000002: Can't create symbolic link '/home/foobar/proj/.svn/tmp/svn-PvrkP3.tmp': No such file or directory
# svn status
svn: E155037: Previous operation has not finished; run 'cleanup' if it was interrupted
# svn cleanup
svn: E000002: Can't create symbolic link '/home/foobar/proj/.svn/tmp/svn-qckOhQ.tmp': No such file or directory
我该如何恢复？
这可能不是最好的答案，但是我暂时已经解决了我的问题，只需打开引擎盖并弄脏双手即可。这是我所做的：
我试图创建这些丢失的文件，但只要求其他文件：
# svn status
svn: E155037: Previous operation has not finished; run 'cleanup' if it was interrupted
# touch /home/foobar/proj/.svn/tmp/svn-I03qQS.tmp
# svn status
svn: E155037: Previous operation has not finished; run 'cleanup' if it was interrupted
# svn cleanup
svn: E000002: Can't create symbolic link '/home/foobar/proj/.svn/tmp/svn-lYugyl.tmp': No such file or directory
# touch /home/foobar/proj/.svn/tmp/svn-lYugyl.tmp
# svn cleanup
svn: E000002: Can't create symbolic link '/home/foobar/proj/.svn/tmp/svn-3exWGo.tmp': No such file or directory
# touch /home/foobar/proj/.svn/tmp/svn-3exWGo.tmp
# svn cleanup
svn: E000002: Can't create symbolic link '/home/foobar/proj/.svn/tmp/svn-TSibma.tmp': No such file or directory
这是svn的旧版本，2012年的1.7.4版本（r1295709），但我比现在尝试升级要了解得更多。
让我们看看如何使用wc.db
# sqlite3 wc.db .dump |egrep 'submit.(cer|pkey)'
INSERT INTO "NODES" VALUES(1,'submit.cer',0,'',1,'proj/submit.cer',19433,'normal',NULL,NULL,'file',X'2873766E3A7370656369616C2031202A29',NULL,'$sha1$115f82f76a709733e88d9f26a7a5f01a47953401',NULL,19433,1579098137216132,'foobar',NULL,NULL,X'2873766E3A77633A72615F6461763A76657273696F6E2D75726C203337202F69722F73766E2F2173766E2F7665722F31393433332F8888882F7375626D69742E63657229',NULL);
INSERT INTO "NODES" VALUES(1,'submit.pkey',0,'',1,'proj/submit.pkey',19433,'normal',NULL,NULL,'file',X'2873766E3A7370656369616C2031202A29',NULL,'$sha1$99747e06d352668bf515639d0a6ec3dbf86cc1ff',NULL,19433,1579098137216132,'foobar',NULL,NULL,X'2873766E3A77633A72615F6461763A76657273696F6E2D75726C203338202F69722F73766E2F2173766E2F7665722F31393433332F68888882F7375626D69742E706B657929',NULL);
那是什么？
# sqlite3 wc.db '.schema NODES'
CREATE TABLE NODES (
wc_id INTEGER NOT NULL REFERENCES WCROOT (id),
local_relpath TEXT NOT NULL,
op_depth INTEGER NOT NULL,
parent_relpath TEXT,
repos_id INTEGER REFERENCES REPOSITORY (id),
repos_path TEXT,
revision INTEGER,
presence TEXT NOT NULL,
moved_here INTEGER,
moved_to TEXT,
kind TEXT NOT NULL,
properties BLOB,
depth TEXT,
checksum TEXT REFERENCES PRISTINE (checksum),
symlink_target TEXT,
changed_revision INTEGER,
changed_date INTEGER,
changed_author TEXT,
translated_size INTEGER,
last_mod_time INTEGER,
dav_cache BLOB,
file_external TEXT,
PRIMARY KEY (wc_id, local_relpath, op_depth)
);
有趣的地方：symlink_target
sqlite3 wc.db "SELECT symlink_target,NULL,'' FROM NODES WHERE local_relpath = 'submit.cer'"
||
因此，symlink目标为NULL，这很可能是导致它崩溃的原因。不幸的是，我无法在此进行检查：
sqlite3 wc.db "SELECT local_relpath,symlink_target FROM NODES WHERE symlink_target IS NOT NULL"
没有。
所以，如果我只删除这两个NODES怎么办？
# sqlite3 wc.db "CREATE TABLE BADNODES AS SELECT * FROM NODES WHERE local_relpath IN ('submit.cer', 'submit.pkey')"
# sqlite3 wc.db "SELECT * FROM BADNODES"
1|submit.cer|0||1|proj/submit.cer|19433|normal|||file|(svn:special 1 *)||$sha1$a15f82f76a709733e88d9f26a7a5f01a47953401||19433|1579098137216132|foobar|||(svn:wc:ra_dav:version-url 37 /ir/svn/!svn/ver/19433/proj/submit.cer)|
1|submit.pkey|0||1|proj/submit.pkey|19433|normal|||file|(svn:special 1 *)||$sha1$a9747e06d352668bf515639d0a6ec3dbf86cc1ff||19433|1579098137216132|foobar|||(svn:wc:ra_dav:version-url 38 /ir/svn/!svn/ver/19433/proj/submit.pkey)|
# sqlite3 wc.db "DELETE FROM NODES WHERE local_relpath IN ('submit.cer', 'submit.pkey')"
# cd ..
# svn cleanup
svn: E155010: The node '/home/foobar/submit.cer' was not found.
所以它现在仍然有一些关于Submit.cer的内容。但是从哪里来的？不在数据库中。
# sqlite3 wc.db .dump |fgrep submit.cer |fgrep -v BADNODES
# find . -name 'submit.cer'
# fgrep -Rl submit.cer .
./pristine/2a/2a5fe860af1b54b5b63978176e345b2d6cf57e01.svn-base
./wc.db
啊哈，这是原始的东西。但这是一个红色的鲱鱼，这个原始文件只是另一个我提交的文件commit.sh，它的文本中包含了commit.cer，因此svn不会知道。 svn cleanup怎么甚至知道应该有一个名为Submit.cer的东西？
薄雾从此列使用此值获取：
(svn:wc:ra_dav:version-url 38 /ir/svn/!svn/ver/19433/proj/submit.cer)
来自列
dav_cache BLOB,
具有值：
X'2873766E3A77633A72615F6461763A76657273696F6E2D75726C203337202F69722F73766E2F2173766E2F7665722F31393433332F8888882F7375626D69742E63657229'
因此，我最好搜索所有BLOB列，无论它们是否提到了commit.cer文件。那不是很困难，
# echo "submit.cer" |od -t x1
0000000 73 75 62 6d 69 74 2e 63 65 72 0a
0000013
所以我可以搜索：
# sqlite3 wc.db .dump |fgrep 7375626D69742E636572
INSERT INTO "WORK_QUEUE" VALUES(209,X'2866696C652D636F6D6D6974207375626D69742E636572203120302031203029');
INSERT INTO "BADNODES" VALUES(1,'submit.cer',0,'',1,'proj/submit.cer',19433,'normal',NULL,NULL,'file',X'2873766E3A7370656369616C2031202A29',NULL,'$sha1$115f82f76a709733e88d9f26a7a5f01a47953401',NULL,19433,1579098137216132,'gschadow',NULL,NULL,X'2873766E3A77633A72615F6461763A76657273696F6E2D75726C203337202F69722F73766E2F2173766E2F7665722F31393433332F8888882F7375626D69742E63657229',NULL);
所以我走了，那个WORK_QUEUE！
# sqlite3 wc.db '.schema WORK_QUEUE'
CREATE TABLE WORK_QUEUE (
id INTEGER PRIMARY KEY AUTOINCREMENT,
work BLOB NOT NULL
);
# sqlite3 wc.db 'select * from WORK_QUEUE'
209|(file-commit submit.cer 1 0 1 0)
210|(file-commit submit.pkey 1 0 1 0)
不错！因此，如果我只是将它们移出WORK_QUEUE？
# sqlite3 wc.db 'CREATE TABLE BAD_WORK_QUEUE AS SELECT * FROM WORK_QUEUE'
# sqlite3 wc.db 'DELETE FROM WORK_QUEUE'
现在是tada！
# cd ..
# svn cleanup
# svn status |fgrep submit
? submit.cer
? submit.pkey
这看起来真的很有希望，好像坏链接从未犯过？我们可以尝试吗？糟糕：
# svn update
Updating '.':
C submit.pkey
C submit.cer
Updated to revision 19433.
Summary of conflicts:
Tree conflicts: 2
但是然后，魔术般地：
# svn update
Updating '.':
At revision 19433.
# svn status |fgrep submit
D C submit.cer
D C submit.pkey
非常干净！这样我就可以在我的工作中继续生存下去，只是不会再提交这些符号链接。
现在的课程是：在未提交目标的情况下，切勿提交符号链接！