Updates markdown-it to v13.0.1
Noteworthy changes:
* `markdownit()` is now available on `globalThis` instead of `window`.
* The `text_collapse` rule was renamed to `fragments_join` which affected the `bbcode-inline` implementation.
* The `linkify` rule was added to the `inline` chain which affected the handling of the `[url]` BBCode. If available, our implementation reuses `link_open` and `link_close` tokens created by linkify in order to prevent duplicate links.
* The rendered HTML for code changed slightly. There's now a linebreak before the `</code>` tag. The tests were adjusted accordingly.
Previously we were only applying the restriction to `a[href]` and `img[src]`. This commit ensures we apply the same logic to all allowlisted media src attributes.
String.prototype.substr() is deprecated so we replace it with String.prototype.slice() which works similarily but isn't deprecated.
Signed-off-by: Tobias Speicher <rootcommander@gmail.com>
Co-authored-by: Jarek Radosz <jradosz@gmail.com>
Previously, our `upload://` protocol urls were only supported in markdown image tags. This meant that our PullHotlinkedImages job was forced to convert `<img` tags to markdown. Depending on the exact syntax, this can actually cause the image to break.
This commit adds support for `upload://` inside regular HTML `<img` tags. In a future commit, we'll be able to use this to make our PullHotlinkedImages job much more robust.
Context at https://meta.discourse.org/t/152801
When returning the customRenderFn from within buildCustomMarkdownCookFunction
for custom markdown engines (such as the one used by the [chat] transcripts)
we were not hoisting/unhoisting the `html_raw` tokens created by the
transcript, which meant that opts.discourse.hoisted could end up in
a state where it was null, and which caused errors and general unpleasantness.
Instead, we can just call the `cook` function that is already exported
from discourse-markdown-it, that takes care of what we did previously
plus the hoisting.
There is a companion chat commit that adds tests for this, there are
no custom markdown engine usages in core to test with.
This option will make it so the [quote] bbcode will always
include the HTML link to the quoted post, even if a topic_id
is not provided in the PrettyText#cook options. This is so
[quote] bbcode can be used in other places, like chat messages,
that always need the link and do not have an "off-topic" ID
to use.
This makes a small improvement to 'cold cache' ember-cli build times, and a large improvement to 'warm cache' build times
The ember-auto-import update means that vendor is now split into multiple files for efficiency. These are named `chunk.*`, and should be included immediately after the `vendor.js` file. This commit also updates the rails app to render script tags for these chunks.
This change was previously merged, and caused memory-related errors on RAM-constrained machines. This was because Webpack 5 switches from multiple worker processes to a single multi-threaded process. This meant that it was hitting node's default heap size limit (~500mb on a 1GB RAM server). Discourse's standard install procedure recommends adding 2GB swap to 1GB-RAM machines, so we can afford to override's Node's default via the `--max-old-space-size` flag.
Allows to write custom code blocks:
```
```mermaid height=200,foo=bar
test
```
```
Which will then get converted to:
```
<pre data-code-wrap="mermaid" data-code-height="200" data-code-foo="bar">
<code class="lang-nohighlight">
test
</code>
</pre>
```
This reverts commit f4c6a61855 and a8325c9016
This update of ember-auto-import and webpack causes significantly higher memory use during rebuilds. This made ember-cli totally unusable on 1GB RAM / 2GB swap environments. We don't have a specific need for this upgrade right now, so reverting for now.
This makes a small improvement to 'cold cache' ember-cli build times, and a large improvement to 'warm cache' build times
The ember-auto-import update means that vendor is now split into multiple files for efficiency. These are named `chunk.*`, and should be included immediately after the `vendor.js` file. This commit also updates the rails app to render script tags for these chunks
This commit adds a requestCustomMarkdownCookFunction function
to the `helper` that is provided to custom markdown rules
via their `setup` function.
The way this works is that once the default markdown engine that
we use for cooking posts has been set up, we loop through all
of the callbacks registered by `requestCustomMarkdownCookFunction`
and call `_buildCustomMarkdownCookFunction`. This creates
a new markdown engine using many of the same settings as the
default one, but will allow for the following options to be
changed by the markdown rule requesting the custom function:
* featuresOverride - The markdown-it features to allow for the engine
* markdownItRules - The markdown-it rules to allow for the engine
After this engine is set up a render function which renders + sanitizes
the output is returned for use by the markdown rule.
The use case for this API is mainly for block BBCode markdown rules
which want to render their content with a limited subset of the
markdown features/rules. Our initial use case for this is chat message
quoting.
This commit also does some minor refactoring of discourse-markdown-it
to accommodate this new engine building.
Sometimes plugins need to have additional data or options available
when rendering custom markdown features/rules that are not available
on the default opts.discourse object. These additional options should
be namespaced to the plugin adding them.
```
Site.markdown_additional_options["chat"] = { limited_pretty_text_markdown_rules: [] }
```
These are passed down to markdown rules on opts.discourse.additionalOptions.
The main motivation for adding this is the chat plugin, which currently stores
chat_pretty_text_features and chat_pretty_text_markdown_rules on
the Site object via additions to the serializer, and the Site object is
not accessible to import via markdown rules (either through
Site.current() or through container.lookup). So, to have this working
for both front + backend code, we need to attach these additional options
from the Site object onto the markdown options object.
Previously only `<div>one top element</div>` was allowed because we use `firstChild` instead of `children`.
We also want `<div>one</div><div>two</div>` to work with this method.
This commit extends the options which can be passed to
`PrettyText.markdown` so that which Markdown-it rules and Discourse
Markdown plugins to be used when rendering a text can be customizable.
Currently, this extension is mainly used by plugins.
