Don't try to get image information when the image isn't local. We
generally expect that images are in the local filesystem's static
directory, but if the user has specified a remote image—ie, with
an http:// or https:// prefix—then we shouldn't try imageConfig.
This reverts commit bf9bca9656.
If the user specifies a non-local image then the build generates
an error. See #56. We need to have a way to only get imageInfo for
local images...
Bootstrap's default only styles blockquote tags that also have the
class "blockquote". As Hugo's Markdown syntax for blockquotes only
produces bare blockquote tags, we should apply the same style to
those as well, as this is most likely what users expect.
I had overridden Hugo's OpenGraph template to improve it, but those
changes have been upstreamed in Hugo 0.19. We can use theirs now.
See: https://github.com/spf13/hugo/pull/3073
I had overridden it in the theme to improve the metadata generated
by it. Hugo has accepted the changes upstream so we can use theirs
now.
See: https://github.com/spf13/hugo/pull/2984
Hugo 0.18 introduced the imageConfig function which allows you to
access the height and width of images, which makes bots consuming
the structured data happy.
Instead of taking the screenshot of the whole window, I used the
screenshot function in Firefox's responsive design mode to specify
the exact dimensions I wanted.
The image seems to be broken any time I look at it on the GitHub
repository page despite being fine if you click it and view the
original on david-dm.org.
.Site.LastChange is the date of the last modification on the entire
site, not necessarily on the node we're currently showing, such as
a taxonomy list.
I'm not sure if it really matters to bots who will parse this (it's
much more important on content pages of course), but using .Date on
nodes like the homepage and taxonomy terms pages will set the date
to be that of the latest post in that range—to me this does indeed
seem to be "time when the object was last updated"[0].
[0] https://developers.facebook.com/docs/reference/opengraph/object-type/website/
Hugo's current handling of dates in the opengraph partial needs
nome work to be more correct—for example: the usage of published
and updated times. This comes verbatim from the Hugo source tree.
See: tpl/template_embedded.go
Allowing users to select specific icons they want to show makes the
configuration and logic a bit tricky. A user brought up the case of
disabling sharing icons on certain pages/posts, and it was actaully
not possible without adding lots of extra logic, not to mention the
pain of having to test all possible configurations.
Instead, it is much simpler to just allow sharing icons to be either
on or off as desired in the site config or page/post frontmatter:
sharingicons = false
Otherwise, sharing icons default to being enabled, as this is most
in line with what would be expected on a "blog".
This replaces the metadata that Hugo's own schema.html template had
been providing, but does so in JSON-LD notation rather than via the
use of <meta> tags (this is Google's currently recommended form of
specifying this markup). There are a few exceptions where I did not
follow the conventions used in Hugo's template, for example the use
of up to six images from a post's frontmatter, because Google's tool
only recognizes one image, as well as different logic for a post's
publish and modified dates (using enableGitInfo = true).
Using this new markup, Google's Structured Data Testing Tool is now
able to understand site metadata much better (before it was reading
none).
The implementation here is a mix of the elements and types from the
official Schema.org types—for example, Blog and BlogPosting—as well
as from Google's search documentation. Note that Google's docs are
geared towards AMP, where some metadata is required, while for non-
AMP pages the metadata is just recommended.
We will have to re-evaluate this in the future, for example to add
height and width information to image metadata.
See: https://schema.org/Blog
See: https://schema.org/BlogPosting
See: https://developers.google.com/search/docs/data-types/data-type-selector
See: https://search.google.com/structured-data/testing-tool
As of Hugo 0.18 .Site.Pages now returns all pages, including pages,
home, taxonomies, etc, and you are expected to filter them by their
"kind". There is a new variable .Site.RegularPages which returns a
range of "regular" pages like in pre-0.18 Hugo.
In this instance we are limiting the range to pages with the type
"post", so our current behavior works, but I'd rather be consistent
with other ranges we're using, like on the homepage and taxonomy
list pages.
See: https://github.com/spf13/hugo/releases/tag/v0.18