Replace UUIDs (in OpenCms or Magnolia)

Bash script to replace UUIDs (in OpenCms or Magnolia)

In content management systems like OpenCms or Magnolia, you often run into the problem of having to replace UUIDs.
I wrote a little Bash script for that.


import info.magnolia.importexport.DataTransporter
import javax.jcr.ImportUUIDBehavior
import groovy.io.FileType

def list = []
def dir = new File('/home/marc/c3/eos/EOS_01112018/')
dir.eachFileRecurse (FileType.FILES) { file ->
  list << file
}

list.each {
  path = it.path
  fileName = it.name
  print 'fileName = ' + fileName
  // currently path may not contain "(" and "."
  int indexOf = fileName.lastIndexOf(" (")
  if (indexOf < 0) indexOf = fileName.indexOf(".")
  workspace = fileName.substring(0, indexOf)
  println ' workspace = ' + workspace

hm = ctx.getJCRSession(workspace)
workspaceRoot = hm.getRootNode()
    
xmlFile = new File(path)
DataTransporter.importFile(xmlFile, workspace, '/', false,
ImportUUIDBehavior.IMPORT_UUID_CREATE_NEW, true, true) 
}

I'd be happy to hear from you to support you in any Magnolia (CMS) or OpenCms project as a freelancer (Freiberufler).

#!/bin/bash
# example:
# ./replaceUUIDS.sh config.xml
# you can also use wildcards in the filename
# don't fogett to escape wildcards e.g. all files \*
# also be aware, that binaries may make the script fail, you may have to exlude them in the find expressions lieke jpg and png
#
# http://www.johnen.biz

FILE_NAME=$1

echo Finding all existing uuids 
OLDIFS=$IFS #make bash interpret escape sequences -> backslash n as a linebreak
IFS=$'\n'
UUIDS=$(find -type f -iname "$FILE_NAME" ! -iname "*.png" ! -iname "*.jpg" -print0| xargs -0 grep -hoER "[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}" | sort -u)
# for grep: h=supress output of filename, o=only show matching part E=use regex, R=only search file which match pattern, r=recursive search
# find all files matching FILE_NAME
IFS=$OLDIFS

echo Generating SED-Strings
#generating a SED-string for each UUID which will run in the loop for each file
b=0;
for i in $UUIDS;

do
  b=$(( $b + 1 ))
  NEW_UUID=$(uuidgen);
  NEW_PART=`echo "'s/$i/${NEW_UUID}/g'" | sed -e 's/-/\\\-/g'` #this replacement of - with \- may not be necessary
  echo $b = $i - $NEW_UUID;
  SED_STRING="${SED_STRING}-e${NEW_PART} ";
done

echo Finding files with UUIDS and replace them
#exchange all uuids with new ones
FILES=$(find . -type f -iname "$FILE_NAME" ! -iname "*.png" ! -iname "*.jpg")
for f in ${FILES[@]};
do
  eval sed $SED_STRING -i $f;
  echo Replacing UUIDS in file $f;
done

#exit;

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