Tuesday, October 4, 2022

[SOLVED] How to write a spec file to build an rpm package?

Issue

How can I write a spec file for building an rpm package, if I have only 4 tasks?

  1. Place my_file in /usr/local/mydir
  2. Place the configuration file in the rsyslog.d
  3. Place the logrotate file in logrptate.d
  4. Echo "something" /etc/programm/programm.conf

My attempt:

        1. Name: my_file
        2. Version: 1.0
        3. Release: 1
        4. Summary: A sample package
        5. Group: Applications/Productivity
        6. License: GPL
        7. Source0: my_file-1.0.tar.gz
        8. BuildArch: i386
        9. BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}.x86-64
       10.
       11. %description
       12. This package basically does nothing, but it potentially could
       13. do something useful.
       14.
       15.
       16. %prep
       17. %setup -q 
       18.
       19. %build
       20. 
       21.
       22. %install
       23. mkdir -p $RPM_BUILD_ROOT/usr/local/myfile
       24. 
       25. install my_file $RPM_BUILD_ROOT/usr/local/myfile
       26. install myfile-rsyslog.conf $RPM_BUILD_ROOT/etc/rsyslog.d
       27.
       28. install myfile-logrotate $RPM_BUILD_ROOT/etc/logrotate.d
       29.
       30. %files
       31. %defattr(-,root,root)
       32. /usr/local/myfile/my_file
       33. /etc/rsyslog.d/myfile-rsyslog.conf
       34. /etc/logrotate.d/myfile-logrotate
       35.
       36. %clean
       37. 
       38. rm -rf $RPM_BUILD_ROOT
       39.
       40. %post
       41. echo "something " >> /etc/programm/programm.conf

What did I understand wrong? Since I do not create a directory in %install, then when building rpm, the build tries to make an install to rsyslog.d and fails. What should be the correct sequence of actions? And then the task is simple - only 3 files, but solutions are offered everywhere difficult.


Solution

You are missing Requires and yes, you need to create those directories, if you want to install your files into them..

Somewhere between Line 9-11:

Requires: logrotate
Requires: rsyslog

Then in the install section:

%{__install} -Dm 0644 myfile-rsyslog.conf $RPM_BUILD_ROOT/etc/logrotate.d/myfile-rsyslog.conf
%{__install} -Dm 0644 myfile-logrotate $RPM_BUILD_ROOT/etc/rsyslog.d/myfile-logrotate

Here, %{__install} -Dm 0644 puts the file into the target directory and creates the target directory if it's missing. Your package shouldn't own the directory.



Answered By - iamauser
Answer Checked By - Robin (WPSolving Admin)
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