Wednesday, November 17, 2021

[SOLVED] multiple tar (source files) files in rpm.spec file

Issue

I have come up with a a centralized logging server on linux. At this point I am trying to consolidate to make things a little easier to load onto another machine. I want to have one RPM that will install multiple programs in one shot. I am working on a CentOS 7 server. the programs that I am looking to pack into an rpm would be: 

eventlog 2.12 
libdbi 0.9.0
freetds 0.91 
libdbi-drivers 0.9.0
json-c
syslog-ng 3.5.6

I have been doing quite a bit of reading into RPM's, just having a hard time understanding how to get multiple sources into one RPM. The reason I am source installing these and not just yum installing them is because of the configures i need to call within the "./configure --enable-example". So I have source installed all these programs on my machine and then I tar'ed them back up and trying to use that file as a source. Any ideas or anyone that could point me in the right direction would be greatly appreciated.


Solution

You can list as many Source lines as you need and have as many %setup macro calls in your spec file as you need to match.

From the Using %setup in a Multi-source Spec File section of the in the online Maximum RPM book we find:

For the purposes of this example, our spec file will have the following three source tags: [1]

 source: source-zero.tar.gz
 source1: source-one.tar.gz
 source2: source-two.tar.gz

To unpack the first source is not hard; all that's required is to use %setup with no options:

%setup

This produces the following set of commands:

cd /usr/src/redhat/BUILD
rm -rf cdplayer-1.0
gzip -dc /usr/src/redhat/SOURCES/source-zero.tar.gz | tar -xvvf -
if [ $? -ne 0 ]; then
  exit $?
fi
cd cdplayer-1.0
cd /usr/src/redhat/BUILD/cdplayer-1.0
chown -R root.root .
chmod -R a+rX,g-w,o-w .

....

Now let's add the second source file. Things get a bit more interesting here. First, we need to identify which source tag (and therefore, which source file) we're talking about. So we need to use either the -a or -b option, depending on the characteristics of the source archive. For this example, let's say that -a is the option we want. Adding that option, plus a "1" to point to the source file specified in the source1 tag, we have:

%setup -a 1

Since we've already seen that using the -a or -b option results in duplicate unpacking, we need to disable the default unpacking by adding the -T option:

%setup -T -a 1

Next, we need to make sure that the top-level directory isn't deleted. Otherwise, the first source file we just unpacked would be gone. That means we need to include the -D option to prevent that from happening. Adding this final option, and including the now complete macro in our %prep script, we now have:

%setup
%setup -T -D -a 1

This will result in the following commands:

cd /usr/src/redhat/BUILD
rm -rf cdplayer-1.0
gzip -dc /usr/src/redhat/SOURCES/source-zero.tar.gz | tar -xvvf -
if [ $? -ne 0 ]; then
  exit $?
fi
cd cdplayer-1.0
cd /usr/src/redhat/BUILD/cdplayer-1.0
chown -R root.root .
chmod -R a+rX,g-w,o-w .
cd /usr/src/redhat/BUILD
cd cdplayer-1.0
gzip -dc /usr/src/redhat/SOURCES/source-one.tar.gz | tar -xvvf -
if [ $? -ne 0 ]; then
  exit $?
fi
cd /usr/src/redhat/BUILD/cdplayer-1.0
chown -R root.root .
chmod -R a+rX,g-w,o-w .

So far, so good. Let's include the last source file, but with this one, we'll say that it needs to be unpacked in a subdirectory of cdplayer-1.0 called database. Can we use %setup in this case?

We could, if source-two.tgz created the database subdirectory. If not, then it'll be necessary to do it by hand. For the purposes of our example, let's say that source-two.tgz wasn't created to include the database subdirectory, so we'll have to do it ourselves. Here's our %prep script now:

%setup
%setup -T -D -a 1
mkdir database
cd database
gzip -dc /usr/src/redhat/SOURCES/source-two.tar.gz | tar -xvvf -

Here's the resulting script:

cd /usr/src/redhat/BUILD
rm -rf cdplayer-1.0
gzip -dc /usr/src/redhat/SOURCES/source-zero.tar.gz | tar -xvvf -
if [ $? -ne 0 ]; then
  exit $?
fi
cd cdplayer-1.0
cd /usr/src/redhat/BUILD/cdplayer-1.0
chown -R root.root .
chmod -R a+rX,g-w,o-w .
cd /usr/src/redhat/BUILD
cd cdplayer-1.0
gzip -dc /usr/src/redhat/SOURCES/source-one.tar.gz | tar -xvvf -
if [ $? -ne 0 ]; then
  exit $?
fi
mkdir database
cd database
gzip -dc /usr/src/redhat/SOURCES/source-two.tar.gz | tar -xvvf -

The three commands we added to unpack the last set of sources were added to the end of the %prep script.



Answered By - Etan Reisner
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