scalable changelog redesign

This patch provides a rewritten changelog system that is designed to run
efficiently on both small and large wikis. The patch includes a plugin to
convert changelogs from

scalable changelog redesign

This patch provides a rewritten changelog system that is designed to run
efficiently on both small and large wikis. The patch includes a plugin to
convert changelogs from the current format. The conversion is
non-destructive and happens automatically. For more information on the new
changelog format see "http://wiki.splitbrain.org/wiki:changelog".

Structure
In short the changelog is now stored in per-page changelog files, with a
recent changes cache. The recent changes cache is kept in
"/data/meta/_dokuwiki.changes" and trimmed daily. The per-page changelogs
are kept in "/data/meta/<ns>/<page_id>.changes" files. To preserve
revision information for revisions stored in the attic, the "*.changes"
files are not removed when their page is deleted. This allows the full
life-cycle of page creation, deletion, and reversion to be tracked.

Format
The changelog line format now uses a general "line type" field in place of
the special "minor" change syntax. There is also an extra field that can
be used to store arbitrary data associated with special line types. The
reverted line type (R) is a good example. There the extra field holds the
revision date used as the source for reverting the page. See the wiki for
the complete syntax description.

Code Notes
The changelog functions have been rewritten to load the whole file only if
it is small. For larger files, the function loads only the relevant
chunk(s). Parsed changelog lines are cached in memory to speed future
function calls.

getRevisionInfo
A binary search is used to locate the chunk expected to contain the
requested revision. The whole chunk is parsed, and adjacent lines are
optimistically cached to speed consecutive calls.

getRevisions
Reads the changelog file backwards (newest first) in chunks until the
requested number of lines have been read. Parsed changelog lines are
cached for subsequent calls to getRevisionInfo. Because revisions are read
from the changelog they are no longer guaranteed to exist in the attic.

(Note: Even with lines of arbitrary length getRevisionInfo and
getRevisions never split changelog lines while reading. This is done by
sliding the "file pointer" forward to the end of a line after each blind
seek.)

isMinor
Removed. To detect a minor edit check the type as follows:
$parsed_logline['type']

darcs-hash:20060830182753-05dcb-1c5ea17f581197a33732a8d11da223d809c03506.gz

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further update to global memory cache arrays

- remove initialisation of caches in inc/pageutils.php
- add global declaration to init.php to support init.php
being included from within a function,

further update to global memory cache arrays

- remove initialisation of caches in inc/pageutils.php
- add global declaration to init.php to support init.php
being included from within a function, e.g. unit testing

;-)

- minor change to utf8_substr, remove non-essential brackets
added as part of an earlier patch

darcs-hash:20060829134806-9b6ab-ab15191344a83be664c412403dc84a24fa2253a2.gz

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init global memory cache arrays

Update to 'add function result caching for cleanID and wikiFN'.
Makes certain that arrays exist for the caches, without checking on each function call.
Properly creat

init global memory cache arrays

Update to 'add function result caching for cleanID and wikiFN'.
Makes certain that arrays exist for the caches, without checking on each function call.
Properly create multidimensional arrays in wikiFN().

darcs-hash:20060828071205-05dcb-7c8dbdb5ea4e7b73808ec3bd9222df1b837d3a1f.gz

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typo fix for compression check

darcs-hash:20060825174755-7ad00-e67f267dd1552ba22b01662de6dbb84faf33e5f8.gz

compression fallback

This updates the availability check of the choosen compression method. If bzip2
is configured but not available it falls back to gzip if available.

darcs-hash:20060825144739-7a

compression fallback

This updates the availability check of the choosen compression method. If bzip2
is configured but not available it falls back to gzip if available.

darcs-hash:20060825144739-7ad00-9f7ce54fd1dbf0d7a8272393e9bc02d862b28fff.gz

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unittest fixes

darcs-hash:20060804142243-9b6ab-d208f7f1a67a9958fda05c519c8407ad5e733cea.gz

init_paths points to the installer now

darcs-hash:20060729144035-7ad00-41ec3091bfda9bded254bd5a1ca7d3a4003a0116.gz

error reporting E_ALL switch

- Adds a constant DOKU_E_LEVEL for globally overriding the error reporting level.
- Adds a file based switch for enabling E_ALL errors without changing the code.

Th

error reporting E_ALL switch

- Adds a constant DOKU_E_LEVEL for globally overriding the error reporting level.
- Adds a file based switch for enabling E_ALL errors without changing the code.

This is convenient for developers debugging new patches. It also ensures that
the new patch will not accidentally record manual changes to the error reporting
level. To enable E_ALL errors globally, create the file 'conf/report_e_all'.

darcs-hash:20060707232525-05dcb-0f24e53783f546a83268fe40b0d8b68f4d6ccfa6.gz

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enhanced getBaseURL()

darcs-hash:20060529154201-484ab-42382d9bd2bac83f84226209027001ca1f6deff0.gz

moved gzip compression to init.php

darcs-hash:20060519212751-7ad00-ace54b61706fdf4f1b7c2abdbabee215a1e256ab.gz

changed all occurances of rename() to io_rename()

darcs-hash:20060507101333-7ad00-e687d797fbee26e0b0bc7741ff8a1af496c101bf.gz

show page generation time

darcs-hash:20060324032426-05dcb-cca609254cfef5b583510b86904f1656dea98fc7.gz

fallback if umask() call doesn't work FS#736

darcs-hash:20060307184135-7ad00-9acd0c9e78976d348ae728dc491a7b7cebf5dd9d.gz

simplified file permission handling

This patch simpliefies the configuration of the file and directory creation
modes. There is no need to set the umask anymore. Only the wanted permissions
for file

simplified file permission handling

This patch simpliefies the configuration of the file and directory creation
modes. There is no need to set the umask anymore. Only the wanted permissions
for files and directories are set. An init function compares the wanted modes
with the ones that would be choosen by the system automatically (consulting
the system's umask) and sets the modes for chmod when needed.

darcs-hash:20060304154038-7ad00-5ef1db3a87e42563a602f9d050c681d2ea74682f.gz

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make umask an empty string for system default

darcs-hash:20060304001433-7ad00-51931e5a0eccec14b63ef215b0fa535bb2484a29.gz

punbb backend dies when magic quotes enabled

darcs-hash:20060303214459-7ad00-17f399257acafed5914eeb727b45b2fa984f00e8.gz

nicer error messages for fatal errors

darcs-hash:20060303180548-7ad00-db294c2c5c10c8df69ebae7596e64e1af4d9bc35.gz

better permission checking

init.php now checks for the accessability of the data directories
(executebit on UNIX systems)

darcs-hash:20060303173252-7ad00-7ce3281926ac93f282d9865e9617ec4d179c2c23.gz

removed obsolete toc unit test

darcs-hash:20060225162230-7ad00-3694f6e8d8ae36a3814d2ce09bc400a33a0d89c5.gz

Fix umask bug and do a code cleanup of chmod/mkdir usage so set the correct permissions, this should also fix problems with dokuwiki making setuid files on some umasks.

* Don't set the umask() any

Fix umask bug and do a code cleanup of chmod/mkdir usage so set the correct permissions, this should also fix problems with dokuwiki making setuid files on some umasks.

* Don't set the umask() anymore, this is not good form and we don't really know what is it in the old code anyway as it was not done properly.
* Retire the dmask config option introduce 2 new ones called fmode and dmode, this is more in line with posix and should make more sense.
* Use chmod for setting the correct permissions but only if it's needed.
* Set changing of permissions off by default as i should work properly in most Apache setups without and it does not make sense on windows anyway.

darcs-hash:20060224211655-ee6b9-68f7bb59417d6f0033cfd3764146923daa4dcf1b.gz

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Fix wrong umask usage and so we set the correct file premissions.

darcs-hash:20060218183251-ee6b9-798ab2994526311b1e58f04e7684b39b51426887.gz

file cleanups

This patch cleans up the source code to satisfy the coding guidelines (see
http://wiki.splitbrain.org/wiki:development#coding_style)

It converts files to UNIX lineendings and removes

file cleanups

This patch cleans up the source code to satisfy the coding guidelines (see
http://wiki.splitbrain.org/wiki:development#coding_style)

It converts files to UNIX lineendings and removes tabs and trailing
whitespace. Not all files were cleaned yet.

darcs-hash:20060217222040-7ad00-bba3d2bee3b5aa7cbb5184258abd50805cd071bf.gz

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remove error supression for local.php (related to #659)

darcs-hash:20051207194400-7ad00-2b0cb5baec92b9cdf40ad7e3e429de0b34aa9f2a.gz

fixed two bugs reported by Timo Falk

darcs-hash:20051108195013-7ad00-f2b2b6d955e64fe2d2abfc1d9421ed619f70abd3.gz

get_tests_running_1

darcs-hash:20051106233800-e96b6-90328f1b6cc5c8b25c6e02f113cf80475789d297.gz