Wrong URLs created for assets in a page with date specified in directory name

[roblillack]

Bug Report

Environment

Zola version: 0.16.0 (macOS)

Expected Behavior

Calling get_url(path=X) with X being the path to a page asset should correctly create a resolvable URL. This should be true even for pages that have a date specified as part of their directory name. For example, for page 2022-07-29-post/index.md with a page asset img.jpg, calling get_url(path="/2022-07-29-post/img.jpg") should lead to the URL https://example.com/post/img.jpg.

Current Behavior

Currently, for a page 2022-07-29-post/index.md with a page asset img.jpg, calling get_url(path="/2022-07-29-post/img.jpg") leads to the unresolvable URL https://example.com/2022-07-29-post/img.jpg.

Step to reproduce

1. In an empty directory, create a simple site:

   echo 'base_url="https://example.com"' > config.toml
   mkdir -p content/2022-07-29-post templates
   touch content/2022-07-29-post/img.jpg
   cat > templates/page.html <<EOF
   {% for asset in page.assets %}
   <a href="{{ get_url(path=asset) }}">click</a>
   {%- endfor %}
   EOF
   cat > content/2022-07-29-post/index.md <<EOF
   ---
   title: Test
   ---
   EOF

2. Run zola build

3. Check the contents of public/post/index.html. It should contain

   <a href="https://example.com/post/img.jpg">click</a>

   but contains

   <a href="https://example.com/2022-07-29-post/img.jpg">click</a>

[Infides]

This is a known issue and a duplicate of: #788 and #1035

[Infides]

I am sorry to bring this topic up again. The behavior is still not solved with 0.17.x
I tried to find the root problem and I have the following theory:
When a page is created, the from_file() method from page.rs will be called and in this method the find_related_assets() method is called to find all assets. This will generate a vector with assets, which contain the path to the assets, in the case when a date is in the folder name, the date will also be in this path.
In order to see this I created a PR here: #2146
This PR prints the paths for each asset, in the case with the date in the folder it will look like this:

Entry path: /tmp/.tmpGZlN57/content/posts/2013-06-02_with-assets
Entry path: /tmp/.tmpGZlN57/content/posts/2013-06-02_with-assets/fail.png
Entry path: /tmp/.tmpGZlN57/content/posts/2013-06-02_with-assets/graph.jpg
Entry path: /tmp/.tmpGZlN57/content/posts/2013-06-02_with-assets/example.js

Am I on the right track here? What do you think @Keats?

[Keats]

That represents the path to the asset in the filesystem, so it's normal to have the date in the path