Before, the htmllink would display the link to the template as if it were a
wikilink, but what was stored was not, which could lead to confusing
situations.
git log --follow seems to sometimes show merges from before the file was
ever created. So, skip them, a file shouldn't be first created during a
merge anyway.
This will be a bit more expensive, but --getctime does not need to be fast.
And getting the real creation time a very useful when untangling blog
histories that involve renames.
I made match_* functions whose influences can vary depending on the page
matched set a special "" influence to indicate this.
Then add_depends can try just one page, and if static influences are found,
stop there.
This was tricky because of the caching, and because use_pagespec always
adds a dependency. That would have made year calendars depend on the whole
pagespec, which is overly broad. So I removed the caching, format_month,
and in format_year just look at %pagesources to see if month pages are
available.
In format_month, I make it always call use_pagespec, so each month calendar
gets the right dependency and any influcences added. This means a bit more
work, but the added work is fairly minimal, and presence dependencies
remove a *lot* of work it used to do.
(100% untested!)
This dependency was missing before switching to use_pagespec.
It is correct to add it, but it needs to be combined with the regular
"pages" dependency to ensure that it does not match extra pages.
(Also fixed its dependency type.)
If a pagespec fails to match, I had been throwing the influences away, but
that is not right. Consider `backlink(foo)`, where foo does not exist.
It still needs to be added as an influence, because if it is created, it
will influence the pagespec to match.
But with that fix, `link(bar)` had as influences all pages, whether they
link to bar or not. Which is not necessary, because modifiying a page to
add a link to bar will directly cause the pagespec to match.
So, in match_link (and all the match_* functions for page metadata),
only return an influence if the match succeeds.
match_backlink had been implemented as the inverse of match_link, but that
is no longer completly true. While match_link does not return an influence
on failure, match_backlink does.
match_created_before/after also return the influence on failure, this way
if created_after(foo) currently fails because foo does not exist, it will
still update the page with the pagespec if foo is created.
Joey Hess