1 files changed, 154 insertions, 0 deletions
diff --git a/packaging/functions.sh b/packaging/functions.sh
new file mode 100644
index 0000000..c8047ab
--- /dev/null
+++ b/packaging/functions.sh
@@ -0,0 +1,154 @@
+#! /bin/bash
+#
+# Copyright (c) 2009, 2010, 2011, 2012 SUSE Linux Product GmbH, Germany.
+# Licensed under GPL v2, see COPYING file for details.
+#
+# Written by Michael Matz and Stephan Coolo
+# Enhanced by Andreas Jaeger
+
+# library of functions used by scripts
+
+RPM="rpm -qp --nodigest --nosignature"
+
+check_header() 
+{
+   $RPM --qf "$QF" "$1"
+}
+
+function check_provides()
+{
+
+  # provides destroy this because at least the self-provide includes the
+  # -buildnumber :-(
+  QF="[%{PROVIDENAME} %{PROVIDEFLAGS} %{PROVIDEVERSION}\\n]\\n"
+  QF="$QF [%{REQUIRENAME} %{REQUIREFLAGS} %{REQUIREVERSION}\\n]\\n"
+  QF="$QF [%{CONFLICTNAME} %{CONFLICTFLAGS} %{CONFLICTVERSION}\\n]\\n"
+  QF="$QF [%{OBSOLETENAME} %{OBSOLETEFLAGS} %{OBSOLETEVERSION}\\n]\\n"
+  check_header "$1" | sed -e "s,-$2$,-@RELEASE@,"
+}
+
+#usage unrpm <file> $dir
+# Unpack rpm files in directory $dir
+# like /usr/bin/unrpm - just for one file and with no options
+function unrpm()
+{
+    local file
+    local dir
+    file=$1
+    dir=$2
+    CPIO_OPTS="--extract --unconditional --preserve-modification-time --make-directories --quiet"
+    mkdir -p $dir
+    pushd $dir 1>/dev/null
+    rpm2cpio $file | cpio ${CPIO_OPTS}
+    popd 1>/dev/null
+}
+
+# Compare just the rpm meta data of two rpms
+# Returns:
+# 0 in case of same content
+# 1 in case of errors or difference
+# 2 in case of differences that need further investigation
+# Sets $files with list of files that need further investigation
+function cmp_spec ()
+{
+    QF="%{NAME}"
+    
+    # don't look at RELEASE, it contains our build number
+    QF="$QF %{VERSION} %{EPOCH}\\n"
+    QF="$QF %{SUMMARY}\\n%{DESCRIPTION}\\n"
+    QF="$QF %{VENDOR} %{DISTRIBUTION} %{DISTURL}"
+    QF="$QF %{LICENSE} %{LICENSE}\\n"
+    QF="$QF %{GROUP} %{URL} %{EXCLUDEARCH} %{EXCLUDEOS} %{EXCLUSIVEARCH}\\n"
+    QF="$QF %{EXCLUSIVEOS} %{RPMVERSION} %{PLATFORM}\\n"
+    QF="$QF %{PAYLOADFORMAT} %{PAYLOADCOMPRESSOR} %{PAYLOADFLAGS}\\n"
+    
+ 
+    # XXX We also need to check the existence (but not the content (!))
+    # of SIGGPG (and perhaps the other SIG*)
+    
+    # XXX We don't look at triggers
+    
+    QF="$QF [%{VERIFYSCRIPTPROG} %{VERIFYSCRIPT}]\\n"
+    
+    # Only the first ChangeLog entry; should be enough
+    QF="$QF %{CHANGELOGTIME} %{CHANGELOGNAME} %{CHANGELOGTEXT}\\n"
+    
+    file1=`mktemp`
+    file2=`mktemp`
+    
+    check_header $oldrpm > $file1
+    check_header $newrpm > $file2
+    
+    # the DISTURL tag can be used as checkin ID
+    #echo "$QF"
+    if ! diff -au $file1 $file2; then
+      rm $file1 $file2
+      return 1
+    fi
+    
+    # Remember to quote the . which is in release
+    release1=`$RPM --qf "%{RELEASE}" "$oldrpm"|sed -e 's/\./\\./g'`
+    release2=`$RPM --qf "%{RELEASE}" "$newrpm"|sed -e 's/\./\\./g'`
+    # This might happen with a forced rebuild of factory
+    if [ "${release1%.*}" != "${release2%.*}" ] ; then
+      echo "release prefix mismatch"
+      return 1
+    fi
+    
+    check_provides $oldrpm $release1 > $file1
+    check_provides $newrpm $release2 > $file2
+    
+    if ! diff -au $file1 $file2; then
+      rm $file1 $file2
+      return 1
+    fi
+
+    # scripts, might contain release number
+    QF="[%{PREINPROG} %{PREIN}\\n]\\n[%{POSTINPROG} %{POSTIN}\\n]\\n[%{PREUNPROG} %{PREUN}\\n]\\n[%{POSTUNPROG} %{POSTUN}\\n]\\n"
+    check_header $oldrpm | sed -e "s,-$release1$,-@RELEASE@," > $file1
+    check_header $newrpm | sed -e "s,-$release2$,-@RELEASE@," > $file2
+
+    if ! diff -au $file1 $file2; then
+      rm $file1 $file2
+      return 1
+    fi
+    
+    # First check the file attributes and later the md5s
+    
+    # Now the files.  We leave out mtime and size.  For normal files
+    # the size will influence the MD5 anyway.  For directories the sizes can
+    # differ, depending on which file system the package was built.  To not
+    # have to filter out directories we simply ignore all sizes.
+    # Also leave out FILEDEVICES, FILEINODES (depends on the build host),
+    # FILECOLORS, FILECLASS (normally useful but file output contains mtimes), 
+    # FILEDEPENDSX and FILEDEPENDSN. 
+    # Also FILELANGS (or?)
+    QF="[%{FILENAMES} %{FILEFLAGS} %{FILESTATES} %{FILEMODES:octal} %{FILEUSERNAME} %{FILEGROUPNAME} %{FILERDEVS} %{FILEVERIFYFLAGS} %{FILELINKTOS}\n]\\n"
+    # ??? what to do with FILEPROVIDE and FILEREQUIRE?
+    
+    check_header $oldrpm > $file1
+    check_header $newrpm > $file2
+    
+    if ! diff -au $file1 $file2; then
+      rm $file1 $file2
+      return 1
+    fi
+    
+    # now the md5sums. if they are different, we check more detailed
+    # if there are different filenames, we will already have aborted before
+    QF="[%{FILENAMES} %{FILEMD5S}\n]\\n"
+    check_header $oldrpm > $file1
+    check_header $newrpm > $file2
+    
+    RES=2
+    # done if the same
+    if cmp -s $file1 $file2; then
+      RES=0
+    fi
+    
+    # Get only files with different MD5sums
+    files=`diff -U0 $file1 $file2 | fgrep -v +++ | grep ^+ | cut -b2- | awk '{print $1}'`
+
+    rm $file1 $file2
+    return $RES
+}