djlint 1.42.0

on Python PyPI

Feature

Template languages:

• New askama profile for Askama (jinja-style templates in Rust). Rust expressions are never reformatted: function and {% set %}/{% let %} formatting are disabled so some_macro!("foo")?, char literals 'a' and tuples keep their exact spelling, and string quotes are never rewritten. The Flask-specific url_for rules (J004/J018) don't apply.
• New tera profile for Tera (Rust, used by Zola): jinja-style formatting plus Tera v2 {% component %}/{% endcomponent %} blocks and single-tag {% set_global %}. The Flask-specific url_for rules don't apply. MiniJinja needs no profile of its own - it is fully Jinja2-compatible, use --profile=jinja.
• New liquid profile for Liquid (Shopify themes, Jekyll, Eleventy, the Rust liquid crate). {% case %}/{% when %}, {% capture %}, {% tablerow %}, {% form %}, {% paginate %}, {% highlight %} and {% unless %}/{% elsif %} indent correctly, {%- -%} whitespace control is handled, and the bodies of Shopify section tags ({% schema %}, {% style %}, {% javascript %}, {% stylesheet %}) are left untouched - they contain JSON, CSS or JS rather than html.
• The golang profile now indents template blocks: {{ if }}, {{ range }}, {{ with }}, {{ block }} and {{ define }} indent their contents up to the matching {{ end }}, with {{ else }}/{{ else if }} as branches and the {{- -}} whitespace-control forms included. Blocks opened and closed on one line are left alone; single tags like {{ template }} and lookalike variables such as {{ .end }} are unaffected.

New linter rules:

• T040: {% extends %} or {% include %} with a missing or empty template name - an error the engine only raises at render time, so the typo is easy to ship.
• H041: an html tag opened in one {% block %} and closed in a different one. The pair looks balanced in the file, but a child template overriding either block renders unbalanced html.
• H018 (off by default, enable with --include=H018): void tags closed with /> instead of >, e.g. <br/> - the trailing slash has no effect in HTML. The opposite convention of the optional H017 ("void tags should be self closing"); enable one or the other, not both.
• H042 (off by default, enable with --include=H042): a <label for="..."> whose value matches no element id in the same file. Template-generated values are skipped; the rule is opt-in because inputs rendered by e.g. {{ form.email }} carry ids the linter cannot see.

Configuration:

• indent and max_line_length now fall back to indent_size and max_line_length from a .editorconfig at the project root. The command line and djlint config files still take precedence, and only sections applying to html (or the configured extension) are read.

Documentation:

• Every linter rule now has a detailed entry on the linter page - what it checks, why it matters, and a verified Don't/Do example pair - in English, French, Russian and Chinese. Askama, Tera and Liquid get language pages, logos and homepage cards, and engines covered by existing profiles (MiniJinja, Jinjava, Pebble, the Liquid dialects) are noted on the pages of the profiles that cover them.

Fix

• H017 no longer misfires on tags that merely start with a void tag name: <cola> (matched by a broken colgroup exclusion) and custom elements like <img-icon> are no longer reported. <meta> tags, missing from the rule's void tag list, are now reported.