!167 [sync] PR-165: 提交补丁：支持先判断target(pid文件)是否存在，再执行unlink（可选）

From: @openeuler-sync-bot 
Reviewed-by: @t_feng 
Signed-off-by: @t_feng

dnf.spec

@@ -3,7 +3,7 @@
 
 Name:                 dnf
 Version:              4.14.0
-Release:              8
+Release:              9
 Summary:              A software package manager that manages packages on Linux distributions.
 License:              GPLv2+ and GPLv2 and GPL
 URL:                  https://github.com/rpm-software-management/dnf
@@ -16,6 +16,10 @@ Patch9003:            adapt-test-another-process.patch
 Patch9004:            fix-dnf-history-undo-error-when-history-sqlite-missing.patch
 Patch9005:            huawei-lock-file-add-verify-parameter.patch
 
+%if 0%{?check_target_before_unlink}
+Patch9006:            get-lockfile-exists-before-unlick.patch
+%endif
+
 %ifarch sw_64
 Patch6000:            dnf-4.10.0-sw.patch
 %endif
@@ -247,6 +251,9 @@ popd
 %{_mandir}/man8/%{name}-automatic.8*
 
 %changelog
+* Tue Jan 10 2023 xiasenlin <xiasenlin1@huawei.com> - 4.14.0-9
+- DESC:add get-lockfile-exists-before-unlick.patch
+
 * Fri Jan 6 2023 Wenlong Zhang<zhangwenlong@loongson.cn> - 4.14.0-8
 - DESC: fix build error for loongarch64
 

get-lockfile-exists-before-unlick.patch

@@ -0,0 +1,24 @@
+From 5cf9fbe5096c807668da3c1685c917996b91c960 Mon Sep 17 00:00:00 2001
+From: Duan Pengjie <pengjieduan@gmail.com>
+Date: Wed, 4 Jan 2023 11:51:23 +0800
+Subject: [PATCH] add exists
+
+---
+ dnf/lock.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/dnf/lock.py b/dnf/lock.py
+index ee7a0db..a94132a 100644
+--- a/dnf/lock.py
++++ b/dnf/lock.py
+@@ -161,6 +161,6 @@ class ProcessLock(object):
+             pid = self._try_lock(my_pid)
+ 
+     def __exit__(self, *exc_args):
+-        if self.count == 1:
++        if self.count == 1 and os.path.exists(self.target):
+             os.unlink(self.target)
+         self._unlock_thread()
+-- 
+2.37.1 (Apple Git-137.1)
+