Releases for XML sitemap

A critical bug was discovered and the issue has been resolved. This is a patch fix for the issue documented at http://drupal.org/node/558358.

Changes since DRUPAL-6--2-0-UNSTABLE3:

• by Dave Reid: Fixed spelling error and mismatched test string.
• by Dave Reid: Removed unnecessary backport code.
• by Dave Reid: Jiggered with translated strings.
• by Dave Reid: Moving around xmlsitemap_form_submit_flag_regenerate() and _xmlsitemap_add_vertical_tabs().
• by Dave Reid: Don't run xmlsitemap_check_status() on non-admin pages.
• by Dave Reid: Moved multilingual XML sitemap features to xmlsitemap_i18n.module.
• by Dave Reid: Don't collapse the link fieldset if inclusion or priority were overridden.
• by Dave Reid: Rework xmlsitemap_settings_list() to xmlsitemap_add_form_type_summary().
• by Dave Reid: Removed unnecessary vertical tabs code now that http://drupal.org/project/500044 is fixed.
• by Dave Reid: Added a 'developer mode' setting and cleaned up the rebuild page.
• by Dave Reid: Updated translation templates.
• by Dave Reid: Being anal retentive.
• by Dave Reid: Expanded node tests.
• by Dave Reid: Removed unnecessary test.

Changes since DRUPAL-6--2-0-UNSTABLE1:

This release reset the code back to BETA0 and resolved issues found with that release. The instructions in the INSTALL.txt file for upgrading per release is given. If you're upgrading from a Drupal 6 version earlier than beta6 then you must follow the instructions below. The contents of the module folder has changed and if you do not follow the below items you will have old and new code in the module directory.

• Deactivate all the xmlsitemap modules (admin/build/modules).
• Uninstall all the xmlsitemap modules (use the Uninstall tab at the top of admin/build/modules).
• Make sure that the database no longer contains any xmlsitemap% tables. (SELECT * FROM `information_schema`.`TABLES` WHERE TABLE_NAME LIKE 'xmlsitemap%';)
• Remove the xmlsitemap from your modules directory (e.g.: rm -rf sites/all/modules/xmlsitemap;).
• Download the new -rc2 version (e.g.: cd /tmp; wget http://ftp.drupal.org/files/projects/xmlsitemap-6.x-1.0-rc2.tar.gz ;).
• Install the new -beta6 version (e.g.: cd sites/all/modules; tar -zxf /tmp/xmlsitemap-6.x-1.0-rc2.tar.gz;).
• Activate the xmlsitemap modules you use (admin/build/modules).
• Visit admin/settings/performance and click "Clear cached data" near the bottom of the page.

This release reset the code back to BETA0 and resolved issues found with that release. The instructions in the INSTALL.txt file for upgrading per release is given. If you're upgrading from a Drupal 6 version then you must follow the instructions below. The contents of the module folder has changed and if you do not follow the below items you will have old and new code in the module directory.

• Deactivate all the xmlsitemap modules (admin/build/modules).
• Uninstall all the xmlsitemap modules (use the Uninstall tab at the top of admin/build/modules).
• Make sure that the database no longer contains any xmlsitemap% tables. (SELECT * FROM `information_schema`.`TABLES` WHERE TABLE_NAME LIKE 'xmlsitemap%';)
• Remove the xmlsitemap from your modules directory (e.g.: rm -rf sites/all/modules/xmlsitemap;).
• Download the new -beta6 version (e.g.: cd /tmp; wget http://ftp.drupal.org/files/projects/xmlsitemap-6.x-1.0-beta6.tar.gz ;).
• Install the new -beta6 version (e.g.: cd sites/all/modules; tar -zxf /tmp/xmlsitemap-6.x-1.0-beta6.tar.gz;).
• Activate the xmlsitemap modules you use (admin/build/modules).
• Visit admin/settings/performance and click "Clear cached data" near the bottom of the page.
• Adjust the xmlsitemap settings; especially the cache directory. (admin/settings/xmlsitemap)

Differences with beta3:

• #470790: Remove empty update functions
• #458546: Cache files are not created
• #461570: Rearrange the tools page
• #471400: The opening tag misses the '>' character
• #470974: Sitemap contains a wrong tag
• #470792: Translatable strings review

This version introduces a system to update the sitemap cache files that are not anymore generated when the sitemap is viewed. The administrators of a Drupal web site can update the cache files from the tools menu, or they can update it using xmlsitemap.cron.php that needs to be invoked from the cron command line in the same way cron.php is called. Differently from what its name can make think, xmlsitemap.cron.php doesn't invoke the Drupal cron hooks implementation, but it is dedicated to the task of updating/creating the cache files used for the sitemap.
Bear in mind that the cache files are not required because, in the case they are missing, the code gets the links directly from the database tables, and build the sitemap chunks in real time (this means that it generates the content of a sitemap chunk that normally contains 1000 links). The cache files, when they are present, surely help in making the process of rendering the sitemap content much faster.

Differences with the beta1 version:

#460100: Wrong parameters for fopen() / fclose()
#460170: Implement a settings page for the tools
#460046: Use file_check_directory()
#459366: Remove hook_boot() and hook_exit()
#459348: Upgrade fails under PostgreSQL
#458992: Code should call session_save_session() before to change the value of the global variable $user
#458546: Cache files are not created
#458644: The module should return an empty sitemap, or sitemap chunk in case of error

The project still has problems with sites containing a lot of nodes, or taxonomy terms; in such cases, the sitemap presented is truncated, but still it is well formed XML.

This is the first public release, beta version.

This is the porting of code from the 5.x-2.x-dev version. It fixes some issues present in both the 5.x-2.x-dev, and 6.x-0.x-dev versions; it also introduces new features.

The latest 6.x-1.x-dev version resolves the PHP timeout problem, and the memory exhausted problem that is more evident in sites with many nodes.
This version can be used in production sites. Bear in mind that it's a development snapshot; it can always create problems with specific configurations.