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TWiki Upgrade Guide

Upgrade from TWiki 01-Dec-2000 or TWiki 01-Sep-2001 to TWiki 01-Dec-2001 (previous to new full release)

This guide describes how to upgrade either from TWiki 01-Dec-2000 or TWiki 01-Sep-2001 to TWiki 01-Dec-2001.

Upgrade Requirements

Major Changes from TWiki 01-Sep-2001

The latest 01-Dec-2001 release includes the following new features and enhancements compared to the 01-Sep-2001 release:

Major Changes from TWiki 01-Dec-2000

The 01-Sep-2001 release includes the following new features and enhancements compared to the 01-Dec-2000 release:

TWiki Directory Structure and File Names

The TWiki directory structure remains the same, with one exception, the TWiki configuration file and Perl modules have been moved from the twiki/bin directory into it's own twiki/lib directory tree. The following files have been renamed and moved:

From TWiki 01-Dec-2000: To TWiki 01-Dec-2001:
twiki/bin/wikicfg.pm twiki/lib/TWiki.cfg
twiki/bin/wiki.pm twiki/lib/TWiki.pm
twiki/bin/wikiaccess.pm twiki/lib/TWiki/Access.pm
twiki/bin/wikiprefs.pm twiki/lib/TWiki/Prefs.pm
twiki/bin/wikisearch.pm twiki/lib/TWiki/Search.pm
twiki/bin/wikistore.pm twiki/lib/TWiki/Store.pm

A new twiki/lib/TWiki/Plugins directory contains the new Plugin modules.

Standard Upgrade Procedure from 01-Sep-2001 to 01-Dec-2001 Release

This incremental update can be performed easily.

The following steps describe the upgrade assuming that $TWIKIROOT is the root of your current 01-Sep-2001 release.

  1. Back up and prepare:
    • Back up all existing TWiki directories $TWIKIROOT/bin, $TWIKIROOT/pub, $TWIKIROOT/data, $TWIKIROOT/templates.
    • Create a temporary directory and unpack the ZIP file there.
  2. Update files in TWiki root:
    • Overwrite all *.html and *.txt files in $TWIKIROOT with the new ones.
  3. Update template files:
    • Overwrite all template files in $TWIKIROOT/templates with the new ones.
  4. Update script files:
    • Overwrite all script files in $TWIKIROOT/bin with the new ones.
  5. Update library files:
    • Overwrite the TWiki.pm library in $TWIKIROOT/lib with the new one.
    • Overwrite all *.pm library files in $TWIKIROOT/lib/TWiki and $TWIKIROOT/lib/TWiki/Plugins with the new ones.
  6. Update data/TWiki files: (in case you want the updated docs)
    • Using your browser, merge the new TWiki.TWikiRegistration topic (or TWiki.TWikiRegistrationPub in case you used that one) into your existing TWiki.TWikiRegistration topic.
    • In the temporary twiki/data/TWiki directory where you unzipped the installation package:
      • Remove the files you do not want to upgrade: TWikiPreferences.*, WebNotify.*, WebPreferences.*, WebStatistics.* and all WebTopic* files.
      • In case the cgi-scripts are not running as user nobody: The *,v RCS repository files delivered with the installation package are locked by user nobody and need to be changed to the user of your cgi-scripts, e.g., www-data. A simple way to switch the locker of the RCS files is to use sed:
        for f in *,v; do sed 's/nobody\:/www-data\:/' $f > x; mv x $f; done
    • Move all remaining *.txt and *.txt,v files from the temporary data/TWiki directory to your $TWIKIROOT/data/TWiki directory.
  7. Update pub/TWiki files:
    • Move the new pub/TWiki/TWikiDocGraphics directory into your $TWIKIROOT/pub/TWiki directory.

Standard Upgrade Procedure from 01-Dec-2000 to 01-Dec-2001 Release

The idea is to have the new and old installation work in parallel so that you can test the new installation before switching over. That way you can make the switch on your live TWiki installation within one minute without affecting the users.

Before Switch: After Switch:
Current 01-Dec-2000: New 01-Dec-2001: Obsolete 01-Dec-2000: New 01-Dec-2001:
twiki/templates/ twiki/templates2/ twiki/templates1/ twiki/templates/
twiki/bin/ twiki/bin/2/ (overwritten) twiki/bin/
(N/A) twiki/bin/lib/ (N/A) twiki/lib/
twiki/data/TWiki twiki/data/TWiki2 twiki/data/TWiki1 twiki/data/TWiki
(other directories do not change)

Alternatively you could move the existing installation away, install the 01-Dec-2001 release into it's place and move your webs and pub files back.

Follow this step-by-step guide to upgrade from the 01-Dec-2000 TWiki to the 01-Dec-2001 release, importing your original page data and related files:

Pre-Upgrade Preparation

Two major areas of TWiki functionality - TWikiTemplates and TWikiForms (input forms associated with a topic)- are entirely different in the new TWiki. If you've customized your templates or use Category Tables, read those sections before starting your upgrade.

The following steps describe the upgrade on Unix. Windows setup is very similar. It's assumed that $TWIKIROOT is the root of your current 01-Dec-2000 release, ex: export TWIKIROOT=/some/dir/

Step 1: Backup & Unpack

  1. Back up all existing TWiki directories twiki/bin, twiki/pub, twiki/data, twiki/templates.
  2. Create a temporary directory and unpack the ZIP file there:
    mkdir -p ~/tmp/
    cp -p ~/downloads/TWiki20011201.zip ~/tmp/
    cd ~/tmp/
    unzip ~/tmp/TWiki20011201.zip

Step 2: Upgrade TWiki document files

  1. Move the document files to your TWiki root ( twiki ):
    mv ~/tmp/TWiki*.html $TWIKIROOT
    mv ~/tmp/index.html $TWIKIROOT
    mv ~/tmp/readme.txt $TWIKIROOT
    mv ~/tmp/license.txt $TWIKIROOT

Step 3: Install new template files

  1. Move & rename the template directory to a temporary twiki/templates2 directory, ex:
    mv ~/tmp/templates $TWIKIROOT/templates2
  2. Pay attention to the file and directory permissions (security issue). Set file permissions, ex:
    chmod 644 *.cgi

Step 4: Install new data and pub files

  1. Move the TWiki web to a temporary TWiki2 twiki/data/TWiki2 directory. Do the same to files attached to this web, ex:
    mv ~/tmp/data/TWiki $TWIKIROOT/data/TWiki2
    mv ~/tmp/pub/TWiki $TWIKIROOT/pub/TWiki2
  2. Move & rename the Know web to a temporary twiki/data/Know2 directory, ex:
    mv ~/tmp/data/Know $TWIKIROOT/data/Know2
    mv ~/tmp/pub/Know $TWIKIROOT/pub/Know2
  3. Move the _default and Trash web, ex:
    mv ~/tmp/data/_default $TWIKIROOT/data
    mv ~/tmp/data/Trash $TWIKIROOT/data
  4. Move the MIME types file, ex:
    mv ~/tmp/data/mime.types $TWIKIROOT/data
  5. Move the TWiki logo files, ex:
    mv ~/tmp/pub/*.gif $TWIKIROOT/pub
  6. Pay attention to the file permissions of the TWiki2 and Know2 directories and its files. The files must be writable by the cgi-scripts (usually user nobody).
  7. In case the cgi-scripts are not running as user nobody: The *,v RCS repository files delivered with the installation package are locked by user nobody and need to be changed to the user of your cgi-scripts, e.g., www-data. A simple way to switch the locker of the RCS files is to use sed:
    for f in *,v; do sed 's/nobody\:/www-data\:/' $f > x; mv x $f; done

Step 5: Install new CGI scripts

  1. Move & rename the CGI script directory to a temporary twiki/bin/2 directory, ex:
    mv ~/tmp/bin $TWIKIROOT/bin/2
  2. If necessary, change the script names to include the required extension, ex: .cgi
  3. Copy any additional scripts you might have from the 01-Dec-2000 release, ex:
    cp -p $TWIKIROOT/bin/somescript $TWIKIROOT/bin/2
  4. In case you use basic authentication, rename .htaccess.txt to .htaccess and customize it, ex:
    cd $TWIKIROOT/bin/2
    mv .htaccess.txt .htaccess
    diff ../.htaccess .
    and merge the content
  5. Pay attention to the file and directory permissions (security issue). Set permissions, ex:
    chmod 755 *.cgi

Step 6: Install new Perl library files

  1. Move the lib directory to a temporary twiki/bin/lib directory, ex:
    mv ~/tmp/lib $TWIKIROOT/bin
  2. Pay attention to the file and directory permissions (security issue). Set permissions, ex:
    chmod 644 *.pm

Step 7: Set configurations and test installation

  1. Merge the content of the old twiki/bin/wikicfg.pm into the new twiki/lib/TWiki.cfg configuration file. Use the diff command to find out the differences, ex:
    cd $TWIKIROOT/bin/lib
    diff ../wikicfg.pm TWiki.cfg
  2. Make sure to set the correct temporary location of templates and scripts, ex:
    $scriptUrlPath    = "/twiki/bin/2";
    $templateDir      = "/home/httpd/twiki/templates2";
  3. Do not merge the functions extendHandleCommonTags, extendGetRenderedVersionOutsidePRE, extendGetRenderedVersionInsidePRE from the old twiki/bin/wikicfg.pm. This is now handled by the Default plugin twiki/lib/TWiki/Plugins/Default.pm
  4. Test your new TWiki installation to see if you can view topics. Point your browser to the old installation and fix the URL to see the new installation, ex:
    • Old URL: http://localhost/cgi-bin/view
    • New URL: http://localhost/cgi-bin/2/view

Step 8: Update topics

You can do the following changes using your old TWiki 01-Dec-2000 or new TWiki 01-Dec-2001 installation. Pointing your browser to the old installation for edit-copy-edit-paste operations is recommended, so that users don't get surprised by meta data content showing up in topics.

  1. Remember that you now have two TWiki webs:
    • The original TWiki web.
    • The new TWiki2 web, which gets renamed to TWiki when you switch over the installation.
  2. In case you customized TWiki.TWikiRegistration, merge your changes back into TWiki2.TWikiRegistration.
  3. Copy to TWiki2 any topics that you created in the TWiki web.
    • Do the same for
  4. In TWiki2.TWikiPreferences, merge the old TWiki.TWikiPreferences settings and customize it.
    • Add your webs to WIKIWEBLIST
    • Set the WIKIWEBMASTER
    • Set the SMTPMAILHOST
  5. In WebPreferences of all webs, add or change the following web preferences: (see TWiki.WebPreferences)
    • Add a NOSEARCHALL in case you want to exclude the web from a web="all" search:
      * Set NOSEARCHALL = on
    • In WEBTOPICLIST, remove the %WEB% . {} decoration from the list (it is now in the templates), ex:
      * Set WEBTOPICLIST = <a href="WebHome">Home</a>
        | <a href="WebChanges">Changes</a>
        | <a href="WebIndex">Index</a>
        | <a href="WebSearch">Search</a>
        | Go <input type="text" name="topic" size="16" />
    • Add a these new preferences:
      * Set DENYWEBVIEW =
      * Set ALLOWWEBVIEW =
      * Set DENYWEBRENAME =
      * Set ALLOWWEBRENAME =
    • Set the FINALPREFERENCES:
      * Set FINALPREFERENCES = WEBTOPICLIST, DENYWEBVIEW, ALLOWWEBVIEW, DENYWEBCHANGE, ALLOWWEBCHANGE, DENYWEBRENAME, ALLOWWEBRENAME
  6. Optional: In WebSearch of all webs, replace content with this one line:
    %INCLUDE{"%TWIKIWEB%.WebSearch"}%
  7. Optional: In WebChanges of all webs, replace content with this one line:
    %INCLUDE{"%TWIKIWEB%.WebChanges"}%

Step 9: Customize template files

NOTE: Skip this step if you did not customize your template files.

  1. Remember that you have now two template directories:
    • The original twiki/templates.
    • The new twiki/templates2, which gets renamed to twiki/templates when you switch over the installation.
  2. Customized templates and skins need to be upgraded to the new TWikiTemplates. This isn't difficult, but you have be familiar with the new template set-up before starting the conversion. The safest way is to use the new templates as a base and to merge your changes back. Changes in new templates:
    • Templates are now rendered by TWiki. You can use all TextFormattingRules, but you have to escape unwanted ones. Also, remove empty lines unless you want a =<p /> tag added.
    • Added TWikiMetaData rendering.
  3. Form Templates replace the TWikiCategoryTables:
    • Create a replacement WebForm topic based on twikicatitems.tmpl in each web that uses a Category Table. See details in TWikiForms and compare with the settings in the Know2.WebPreferences topic.
      ALERT! Do not remove the twikicatitems.tmpl file, it is still used for topics that are of the old format.
    • Searches need to be adjusted to deal with format change. It is possible to define a regular expression search that can deal at the same time with topics in the old format and new format.
      • Example: List all topics in the Know web that have a TopicClassification of PublicFAQ:
        %SEARCH{ "[T]opicClassification.*?(td..td|value\=).*?[P]ublicFAQ" casesensitive="on" regex="on" nosearch="on" web="Know"}%
        (The [T] and [P] is done so that search does not find the topic where this search string is located in!)
      • Example: Create a link that lists all topics in the Know web with a TopicClassification of PublicFAQ:
        [[%SCRIPTURL%/search%SCRIPTSUFFIX%/Know/?scope=text
        &search=%5BT%5DopicClassification.*%3F%28td..td%7C
        value%5C%3D%29.*%3F%5BP%5DublicFAQ&regex=on][All Public FAQ]]

        All Public FAQ
  4. For each web that has a custom notedited.tmpl template, create an equivalent WebTopicEditTemplate to conform with the new TemplateTopics. The new format replaces the notedited.tmpl, notext.tmpl and notwiki.tmpl templates.

Step 10: Switch over to new installation

In this step, you move the working 01-Dec-2001 installation to the old 01-Dec-2000 installation, so that users don't have to change the URL.

  1. Test your new 01-Dec-2001 installation under twiki/bin/2/view to make sure everything works as expected.
    • NOTE: Don't worry about the Plugins, they'll work after the switch.
  2. Edit $TWIKIROOT/bin/lib/TWiki.cfg and remove the /2 from $scriptUrlPath and $templateDir, ex:
    $scriptUrlPath    = "/twiki/bin";
    $templateDir      = "/home/httpd/twiki/templates";
  3. Rename the TWiki2 web to TWiki, including attachments, ex:
    cd $TWIKIROOT/data
    mv TWiki TWiki1
    mv TWiki2 TWiki
    cd $TWIKIROOT/pub
    mv TWiki TWiki1
    mv TWiki2 TWiki
  4. Rename the templates2 directory to templates, ex:
    cd $TWIKIROOT
    mv templates templates1
    mv templates2 templates
  5. Move the lib directory one level up from $TWIKIROOT/bin/lib to $TWIKIROOT/lib, ex:
    cd $TWIKIROOT
    mv bin/lib .
  6. Copy content of bin/2 to bin, ex:
    cd $TWIKIROOT/bin
    cp -p bin/2/* .
    cp -p bin/2/.htaccess .
  7. Point your browser to the original URL and make sure the relocated 01-Dec-2001 installation works as expected: check browsing, searching and user registration.
  8. Clean up and remove obsolete directories:
    • Remove directory $TWIKIROOT/bin/2
    • Remove directory $TWIKIROOT/templates1
    • Remove directory $TWIKIROOT/data/TWiki1
    • Remove directory $TWIKIROOT/pub/TWiki1
    • Remove temporary directory, ex: ~/tmp

Step 11: Test the TWiki Plugins

  1. Test the new TWikiPlugins by checking the Plugins settings in TWikiPreferences.
    • The EmptyPlugin, DefaultPlugin, and InterwikiPlugin should be preinstalled. To check the InterwikiPlugin, go to its page.
  2. If you have customized the functions extendHandleCommonTags, extendGetRenderedVersionOutsidePRE and extendGetRenderedVersionInsidePRE in twiki/bin/wikicfg.pm:
    • Merge those changes back into twiki/lib/TWiki/Plugins/Default.pm

General Format Changes

Known Issues

-- JohnTalintyre? - 18 Jul 2001
-- PeterThoeny? - 03 Dec 2001
-- MikeMannix - 05 May 2002

 
 
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