feat: add data shortcode

content/posts/data/index.md

@@ -0,0 +1,27 @@
++++
+title = "Data"
+date = 2022-10-01
+[taxonomies]
+categories = ["usage"]
+tags = ["content", "shortcode"]
+[extra]
+subtitle = "Data loader"
++++
+
+Display data from internal or external sources.
+
+## Example
+
+#### Input
+
+```
+This theme requires **Zola** version {{/* data(src="../theme.toml" type="toml" key="min_version") */}} or later.
+```
+
+- `src`: the address of the data source (mandatory)
+- `type`: the file type of the data source ([supported types](https://www.getzola.org/documentation/templates/overview/#load-data))
+- `key`: an object in the data to display
+
+#### Output
+
+This theme requires **Zola** version {{ data(src="../theme.toml" type="toml" key="min_version") }} or later.

templates/shortcodes/data.html

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+{%- if src and key and type %}
+  {%- if src is matching("^http[s]?://") %}
+    {% set loaded_data = load_data(url=src, format=type) %}
+  {%- else %}
+    {% set loaded_data = load_data(path=src, format=type) %}
+  {%- endif %}
+  {{ loaded_data[key] }}
+{%- else %}
+  {%- if src is matching("^http[s]?://") %}
+    {% set loaded_data = load_data(url=src) %}
+  {%- else %}
+    {% set loaded_data = load_data(path=src) %}
+  {%- endif %}
+  {{ loaded_data }}
+{%- endif %}