This is sorta an optimisation, and sorta a bug fix. In one
test case I have available, it can speed a page build up from 3
minutes to 3 seconds.
The root of the problem is that $links{$page} contains arrays of
links, rather than hashes of links. And when a link is found,
it is just pushed onto the array, without checking for dups.
Now, the array is emptied before scanning a page, so there
should not be a lot of opportunity for lots of duplicate links
to pile up in it. But, in some cases, they can, and if there
are hundreds of duplicate links in the array, then scanning it
for matching links, as match_link and some other code does,
becomes much more expensive than it needs to be.
Perhaps the real right fix would be to change the data structure
to a hash. But, the list of links is never accessed like that,
you always want to iterate through it.
I also looked at deduping the list in saveindex, but that does
a lot of unnecessary work, and doesn't completly solve the problem.
So, finally, I decided to add an add_link function that handles deduping,
and make ikiwiki-transition remove the old dup links.
* pagespec_match_list: New API function, matches pages in a list
and throws an error if the pagespec is bad.
* inline, brokenlinks, calendar, linkmap, map, orphans, pagecount,
pagestate, postsparkline: Display a handy error message if the pagespec
is erronious.
* Add IkiWiki::ErrorReason objects, and modify pagespecs to return
them in cases where they fail to match due to a configuration or syntax
error.
* inline: Display a handy error message if the inline cannot display any
pages due to such an error.
This is perhaps somewhat incomplete, as other users of pagespecs do not
display the error, and will eventually need similar modifications to inline.
I should probably factor out a pagespec_match_all function and make it throw
ErrorReasons.
... as Joey suggested on todo/need_global_renamepage_hook
This hook is applied recursively to returned additional rename
hashes, so that it handles the case where two plugins use the hook:
plugin A would see when plugin B adds a new file to be renamed.
The full set of rename hashes can no longer be changed by hook functions, that
are only allowed to return any additional rename hashes it wants to add.
Rationale: the correct behavior of the recursion would be hard, if not
impossible, to define, if already considered pages were changing on the run.
Signed-off-by: intrigeri <intrigeri@boum.org>
This is intended to solve Joey's concerns expressed on
http://ikiwiki.info/todo/need_global_renamepage_hook/, i.e. the need to make it
possible to use this hook from external plugins.
A plugin using this hook still can add/modify/remove elements of the
@torename array.
Signed-off-by: intrigeri <intrigeri@boum.org>
Nothing in the po plugin actually uses this function.
The benefit of adding the function in general is debatable, but I'd
prefer to keep the changes involved in merging po at a minimum.
Always pass the full (modified) content in `content` named parameter. When the
user edits an existing wiki page, also pass a `diff` named parameter, which
includes only the lines that they added to the page, or modified.
Signed-off-by: intrigeri <intrigeri@boum.org>
This is not needed by the use I'm doing of it, but seems more consistent to me.
Future users of this hook may need this data to make their mind.
Signed-off-by: intrigeri <intrigeri@boum.org>
inline has a format hook that is an optimisation hack. Until this hook
runs, the inlined content is not present on the page. This can prevent
other format hooks, that process that content, from acting on inlined
content. In bug ##509710, we discovered this happened commonly for the
embed plugin, but it could in theory happen for many other plugins (color,
cutpaste, etc) that use format to fill in special html after sanitization.
The ordering was essentially random (hash key order). That's kinda a good
thing, because hooks should be independent of other hooks and able to run
in any order. But for things like inline, that just doesn't work.
To fix the immediate problem, let's make hooks able to be registered as
running "first". There was already the ability to make them run "last".
Now, this simple first/middle/last ordering is obviously not going to work
if a lot of things need to run first, or last, since then we'll be back to
being unable to specify ordering inside those sets. But before worrying about
that too much, and considering dependency ordering, etc, observe how few
plugins use last ordering: Exactly one needs it. And, so far, exactly one
needs first ordering. So for now, KISS.
Another implementation note: I could have sorted the plugins with
first/last/middle as the primary key, and plugin name secondary, to get a
guaranteed stable order. Instead, I chose to preserve hash order. Two
opposing things pulled me toward that decision:
1. Since has order is randomish, it will ensure that no accidental
ordering assumptions are made.
2. Assume for a minute that ordering matters a lot more than expected.
Drastically changing the order a particular configuration uses could
result in a lot of subtle bugs cropping up. (I hope this assumption is
false, partly due to #1, but can't rule it out.)
Joey Hess
http://schmonz.livejournal.com/
Jon Dowland
intrigeri
AlexandreDupas
Joey Hess
tschwinge