Bug in yum-skip-broken (was : yum doesn't look for provides on packages to be installed)

"Fajar A. Nugraha" <[email protected]>
Newsgroups gmane.linux.rpm.yum
Message-ID <[email protected]> 
seth vidal wrote:
> On Tue, 2007-10-09 at 14:44 +0700, Fajar A. Nugraha wrote:
>   
>> I understand that yum will search for shortest package name to look for
>> providing package, but in this case I specified that I want to install
>> MySQL-shared on the command line. Shouldn't that be processed first?
>> Seeing that MySQL-shared is on command line, shouldn't it chose that
>> instead of mysql?
>>
>> Excluding mysql works as expected.
>>
>> # yum -d1 install MySQL-shared MySQL-shared-compat MySQL-client
>> MySQL-server --exclude mysql
>>
>> =============================================================================
>>  Package                 Arch       Version          Repository        Size
>> =============================================================================
>> Installing:
>>  MySQL-client            x86_64     5.0.45-0.glibc23  mysql            
>> 350 k
>>  MySQL-server            x86_64     5.0.45-0.glibc23  mysql             
>> 15 M
>>  MySQL-shared-compat     x86_64     5.0.45-0.glibc23  mysql            
>> 3.1 M
>> Installing for dependencies:
>>  MySQL-shared            x86_64     5.0.45-0.glibc23  mysql            
>> 1.7 M
>>  perl-DBI                x86_64     1.52-1.fc6       base              605 k
>>
>> Transaction Summary
>> =============================================================================
>> Install      5 Package(s)
>> Update       0 Package(s)
>> Remove       0 Package(s)
>>
>>     
>
> Can you try the exact same thing with 3.2.6, please?
>
>   

The same thing happened with 3.2.6.
However, upon further investigation, it seems the bug was in
yum-skip-broken plugin.
Previously I had

check_always = 1

on /etc/yum/pluginconf.d/skip-broken.conf. Now I change it to

check_always = 0

Without skip-broken activated (this is OK):
# yum install MySQL-shared MySQL-shared-compat MySQL-client MySQL-server
Loading "priorities" plugin
Loading "installonlyn" plugin
Loading "skip-broken" plugin
logos                     100% |=========================|  951 B    00:00
dag                       100% |=========================|  951 B    00:00
centos                    100% |=========================|  951 B    00:00
testing                   100% |=========================|  951 B    00:00
base                      100% |=========================| 1.1 kB    00:00
updates                   100% |=========================| 1.1 kB    00:00
mysql                     100% |=========================|  951 B    00:00
local                     100% |=========================|  951 B    00:00
3670 packages excluded due to repository priority protections
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package MySQL-client.x86_64 0:5.0.45-0.glibc23 set to be updated
--> Processing Dependency: perl(DBI) for package: MySQL-client
---> Package MySQL-shared-compat.x86_64 0:5.0.45-0.glibc23 set to be updated
---> Package MySQL-server.x86_64 0:5.0.45-0.glibc23 set to be updated
--> Running transaction check
---> Package perl-DBI.x86_64 0:1.52-1.fc6 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

=============================================================================
 Package                 Arch       Version          Repository        Size
=============================================================================
Installing:
 MySQL-client            x86_64     5.0.45-0.glibc23  mysql            
350 k
 MySQL-server            x86_64     5.0.45-0.glibc23  mysql             
15 M
Installing for dependencies:
 MySQL-shared-compat     x86_64     5.0.45-0.glibc23  mysql            
3.1 M
 perl-DBI                x86_64     1.52-1.fc6       base              605 k

Transaction Summary
=============================================================================
Install      4 Package(s)
Update       0 Package(s)
Remove       0 Package(s)


MySQl-shared compat also provides MySQL-shared, so the above output is
correct.
However, with skip-broken activated :

# yum --skip-broken install MySQL-shared MySQL-shared-compat
MySQL-client MySQL-server
Loading "priorities" plugin
Loading "installonlyn" plugin
Loading "skip-broken" plugin
logos                     100% |=========================|  951 B    00:00
dag                       100% |=========================|  951 B    00:00
centos                    100% |=========================|  951 B    00:00
testing                   100% |=========================|  951 B    00:00
base                      100% |=========================| 1.1 kB    00:00
updates                   100% |=========================| 1.1 kB    00:00
mysql                     100% |=========================|  951 B    00:00
local                     100% |=========================|  951 B    00:00
3670 packages excluded due to repository priority protections
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
**** Checking packages for dependency problems
**** Checking for dep problems  : MySQL-client - 5.0.45-0.glibc23.x86_64
--> Running transaction check
---> Package MySQL-client.x86_64 0:5.0.45-0.glibc23 set to be updated
--> Processing Dependency: libmysqlclient.so.15()(64bit) for package:
MySQL-client
--> Processing Dependency: perl(DBI) for package: MySQL-client
--> Processing Dependency:
libmysqlclient.so.15(libmysqlclient_15)(64bit) for package: MySQL-client
--> Running transaction check
---> Package mysql.x86_64 0:5.0.22-2.1.0.1 set to be updated
---> Package perl-DBI.x86_64 0:1.52-1.fc6 set to be updated
--> Finished Dependency Resolution
****   OK : mysql.x86_64 0-5.0.22-2.1.0.1 - u
****   OK : perl-DBI.x86_64 0-1.52-1.fc6 - u
****   OK : MySQL-client.x86_64 0-5.0.45-0.glibc23 - u
**** Checking for dep problems  : MySQL-shared-compat -
5.0.45-0.glibc23.x86_64
--> Running transaction check
---> Package MySQL-shared-compat.x86_64 0:5.0.45-0.glibc23 set to be updated
--> Finished Dependency Resolution
****   OK : MySQL-shared-compat.x86_64 0-5.0.45-0.glibc23 - u
**** Checking for dep problems  : MySQL-server - 5.0.45-0.glibc23.x86_64
--> Running transaction check
---> Package MySQL-server.x86_64 0:5.0.45-0.glibc23 set to be updated
--> Processing Dependency: libmysqlclient.so.15()(64bit) for package:
MySQL-server
--> Processing Dependency:
libmysqlclient.so.15(libmysqlclient_15)(64bit) for package: MySQL-server
--> Processing Dependency: perl(DBI) for package: MySQL-server
--> Running transaction check
---> Package mysql.x86_64 0:5.0.22-2.1.0.1 set to be updated
---> Package perl-DBI.x86_64 0:1.52-1.fc6 set to be updated
--> Processing Conflict: mysql conflicts MySQL
--> Finished Dependency Resolution
****   Failed
****     mysql conflicts with MySQL
**** Packages with dependency resolving errors
**** MySQL-server - 5.0.45-0.glibc23.x86_64
****   2
**** End Checking packages for dependency problems
--> Running transaction check
---> Package mysql.x86_64 0:5.0.22-2.1.0.1 set to be updated
---> Package perl-DBI.x86_64 0:1.52-1.fc6 set to be updated
---> Package MySQL-client.x86_64 0:5.0.45-0.glibc23 set to be updated
---> Package MySQL-shared-compat.x86_64 0:5.0.45-0.glibc23 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

=============================================================================
 Package                 Arch       Version          Repository        Size
=============================================================================
Installing:
 MySQL-client            x86_64     5.0.45-0.glibc23  mysql            
350 k
Installing for dependencies:
 MySQL-shared-compat     x86_64     5.0.45-0.glibc23  mysql            
3.1 M
 mysql                   x86_64     5.0.22-2.1.0.1   updates           3.0 M
 perl-DBI                x86_64     1.52-1.fc6       base              605 k

Transaction Summary
=============================================================================
Install      4 Package(s)
Update       0 Package(s)
Remove       0 Package(s)


Adding --skip-broken --exclude mysql gives the same result as I posted
earlier, in which it works, but MySQL-shared was also installed (It
shouldn't have, since MySQL-shared-compat also provides MySQL-shared,
but apparently no harm done)

Regards,

Fajar

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