Merge branch 'master' into po

[ikiwiki.git] / doc / todo / need_global_renamepage_hook.mdwn

diff --git a/doc/todo/need_global_renamepage_hook.mdwn b/doc/todo/need_global_renamepage_hook.mdwn
index 8265497ae8c9651afc97a11782709f32eb78cf70..874460b292dff86ef6eaa6ab25f5656326bdba84 100644 (file)
--- a/doc/todo/need_global_renamepage_hook.mdwn
+++ b/doc/todo/need_global_renamepage_hook.mdwn
@@ -25,7 +25,7 @@ It may seem like a corner case, but I want to be very careful when
 deleting files automatically in `srcdir`, which is not always under
 version control.
 
 deleting files automatically in `srcdir`, which is not always under
 version control.
 

-As an sad workaround, I can still disable any deletion in `srcdir`
+As a sad workaround, I can still disable any deletion in `srcdir`

 when it is not under version control. But I think ikiwiki deserves
 a global `renamepage` hook that would be run once per rename
 operation.
 when it is not under version control. But I think ikiwiki deserves
 a global `renamepage` hook that would be run once per rename
 operation.


@@ -51,3 +51,63 @@ would solve my problem. Hmmm? --[[intrigeri]]
 > It might make sense to rename `renamepage` to `renamelink` to make it
 > clearer what it does. (I'm not very worried about this breaking things, at
 > this point.) --[[Joey]]
 > It might make sense to rename `renamepage` to `renamelink` to make it
 > clearer what it does. (I'm not very worried about this breaking things, at
 > this point.) --[[Joey]]

+
+>> In my `po` branch, I renamed `renamepage` to `renamelink`, and
+>> created a `rename` hook that is passed a reference to `@torename`.
+>> --[[intrigeri]]
+
+>>> As Joey highlights it on [[plugins/contrib/po]], it's too late to
+>>> merge such a change, as the 3.x plugin API is released and should
+>>> not be broken. I will thus keep the existing `renamepage` as it
+>>> is, and call `rename` the global hook I need. --[[intrigeri]]
+
+>>>> [[Done]] in my `po` branch. --[[intrigeri]]
+
+I think I see a problem in the rename hook. The hook is called
+before the plugin adds any subpages to the set of pages to rename.
+So, if the user choses to rename subpages, po will not notice
+they are moving, and will not move their po files.
+ 
+Perhaps the hooks should be moved to come after subpages are added.
+This would, though, mean that if the hook somehow decides to add
+entirely other pages to the list, their subpages would not be
+automatically added.
+
+I also have some qualms about the design of the hook. In particular,
+passing the mutable array reference probably makes it impossible
+to use from external plugins. Instead it could return any additional
+rename hashes it wants to add. Or, if the ability to modify existing
+hashes is desired, it could return the full set of hashes.
+
+--[[Joey]] 
+
+> I fixed the last part, i.e. a rename hook function now returns the
+> full set of hashes. As I also converted it to take named parameters,
+> such a function still is passed a reference to the original array,
+> though, because one can't build a hash containing an array of hashes
+> as a value, without passing this array as a reference.
+> 
+>> Sure.
+> 
+> I'm not entirely sure about your first concern. Calling the hook
+> before or after the subpages addition both have their own problems.
+> 
+> What about running the hook before *and* after the subpages
+> addition, with an additional `when` named parameter, so that
+> a given hook function can choose to act only before or after, or both?
+> 
+> --[[intrigeri]]
+>> 
+>> Have you thought about making the hook be run once *per* file that is
+>> selected to be renamed? This would even handle the case where two
+>> plugins use the hook; plugin A would see when plugin B adds a new file
+>> to be renamed. And the subpage renaming stuff could probably be moved
+>> into the rename hook too. --[[Joey]] 
+>>>
+>>> I've implemented this nice solution in my po branch, please review.
+>>> I'm slowly coming back to do the last bits needed to get my po and
+>>> meta branch merged.  --[[intrigeri]]
+
+>>>> It looks good. I made some small changes to it in my own po branch.
+>>>> Nothing significant really. If this were not tied up in the po branch,
+>>>> I've have merged it to master already. --[[Joey]]