X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/d7eca43103a47f0184edb65e2bcf4240f795e3c6..526d9f131b838458df054b7cf34a8d7b42288d12:/doc/plugins/trail/discussion.mdwn

diff --git a/doc/plugins/trail/discussion.mdwn b/doc/plugins/trail/discussion.mdwn
index 4a12aa8e0..ac07f8640 100644
--- a/doc/plugins/trail/discussion.mdwn
+++ b/doc/plugins/trail/discussion.mdwn
@@ -31,7 +31,7 @@ or trail member has actually been edited.
 
 For it to be useful for `trail`, the `prebuild` hook has to run
 after both pagespecs and sorting work. The other use case
-I've seen for a similar hook was for Guiseppe Bilotta to
+I've seen for a similar hook was for Giuseppe Bilotta to
 sort an inline-of-inlines by mtime of newest post, but that
 can't be the same hook, because it has to run after pagespecs
 work, but before sorting.
@@ -42,7 +42,8 @@ work, but before sorting.
 > prebuild, but dunno that the hook prolieration is worth the minor cleanup
 > it allows in trail. --[[Joey]]
 
->> Hmm, t/trail.t is failing several tests here. --[[Joey]]
+>> Hmm, t/trail.t is failing several tests here. To reproduce, I build the
+>> debian package from a clean state, or `rm -rf .t` between test runs. --[[Joey]]
 
 <pre>
 t/trail.t .................... 1/? 
@@ -59,7 +60,80 @@ t/trail.t .................... 1/?
 #   Failed test at t/trail.t line 231.
 </pre>
 
-> These all seem to relate to sorting. --[[Joey]]
+> Looking at the first of these, it expected "trail=sorting n=sorting/new p="
+> but gets: "trail=sorting n=sorting/ancient p=sorting/new"
+>
+> Looking at the second failure, it expected "trail=sorting n=sorting/middle p=sorting/old$"
+> but got: "trail=sorting n=sorting/old p=sorting/end"
+> 
+> Perhaps a legitimate bug? --[[Joey]] 
 
->> This was reproducible once when I build the debian package, but
->> now I cannot reproduce it. --[[Joey]]
+>> I saw this while developing, but couldn't reproduce it, and assumed
+>> I'd failed to update `blib` before `make test`, or some such.
+>> In fact it's a race condition, I think.
+>>
+>> The change and failure here is that `sorting.mdwn` is modified
+>> to sort its trail in reverse order of title. Previously, it
+>> was sorted by order of directives in the page, and secondarily
+>> by whatever sort order each directive specified (e.g.
+>> new, old and ancient were sorted by increasing age).
+>> `old` appearing between `new` and `ancient`, and `new` appearing
+>> between `end` and `old`, indicates that this re-sorting has not
+>> actually taken effect, and the old sort order is still used.
+>>
+>> I believe this is because the system time (as an integer) remained
+>> the same for the entire test, and mtimes as used in ikiwiki
+>> only have a 1-second resolution. We can either fix this with
+>> utime or sleep; I chose utime, since sleeping for 1 second would
+>> slow down the test significantly. Please merge or cherry-pick
+>> `smcv/trail-test` (there's only one commit). --[[smcv]]
+
+----
+
+[[!template id=gitbranch branch=smcv/ready/trail author=smcv]]
+
+Some later changes to trail:
+
+* Display the trail links at beginning/end of default `page.tmpl`
+  as suggested on IRC
+* Improve CSS, particularly in blueview and goldtype themes
+  ([example](http://blueview.hosted.pseudorandom.co.uk/posts/second_post/))
+* Fix a possible bug regarding state deletion
+
+--[[smcv]]
+
+> Applied --[[Joey]] 
+
+----
+
+### Trail plugin creates unexpected interdependencies?
+*(ikiwiki master branch 2014-06-06 also tested with 3.20140228 release)*
+
+I noticed the problem when using the [[/plugins/contrib/album]] plugin but a bit of testing revealed that the [[trail]] plugin, which is used by [[/plugins/contrib/album]] may be the cause of the problem.
+
+On a site with the following structure where all albumN.mdwn files have the `\[[!inline  pages="page(./album01/*)" trail="yes"]]` directive set. All albumN pages and imgN pages get rebuilt whenever any one of the albumN or imgN pages are changed and the command  `ikiwiki --setup wiki.setup --refresh --verbose`
+ is issued.
+
+    /index.mdwn                        Contains no links maps or inlines
+    |-album01.mdwn                 \[[!inline  pages="page(./album01/*)" trail="yes"]]
+    |-album01/
+    | |-imgA.mdwn
+    | |-imgB.mdwn
+    |
+    |-album02.mdwn                 \[[!inline  pages="page(./album02/*)" trail="yes"]]
+    |-album02/
+    | |-imgC.mdwn
+    | |-imgD.mdwn
+    |
+    |-album03.mdwn                 \[[!inline  pages="page(./album03/*)" trail="yes"]]
+    |-album03/
+    | |-imgE.mdwn
+    | |-imgF.mdwn
+
+Changing the index.mdwn page also triggers a full rebuild of all pages with [[trail]] directives. My sites tend to look like the above but with double digit numbers of files in at each level. Changing any file then means a full rebuild of a rather complex site which takes a long time.
+
+My setup and test may very well have mistakes but perhaps someone using the trail plugin could check (using the --verbose flag) if all their trails get rebuild when changing only one. I also find it curious that changes to the parent index.mdwn page triggers the same behaviour.
+
+I have removed a similar comment from the album discussion.
+
+ --[[kjs]]