Allow rules to target individual entries

crates/taplo/src/formatter/mod.rs

@@ -804,11 +804,15 @@ fn format_key(node: SyntaxNode, formatted: &mut String, _options: &Options, _con
 fn format_value(node: SyntaxNode, options: &Options, context: &Context) -> impl FormattedItem {
     let mut value = String::new();
     let mut comment = None;
+
+    let mut scoped_options = options.clone();
+    context.update_options(&mut scoped_options, node.text_range());
+
     for c in node.children_with_tokens() {
         match c {
             NodeOrToken::Node(n) => match n.kind() {
                 ARRAY => {
-                    let formatted = format_array(n, options, context);
+                    let formatted = format_array(n, &scoped_options, context);
 
                     let c = formatted.trailing_comment();
 
@@ -818,10 +822,10 @@ fn format_value(node: SyntaxNode, options: &Options, context: &Context) -> impl
                     }
 
                     debug_assert!(value.is_empty());
-                    formatted.write_to(&mut value, options);
+                    formatted.write_to(&mut value, &scoped_options);
                 }
                 INLINE_TABLE => {
-                    let formatted = format_inline_table(n, options, context);
+                    let formatted = format_inline_table(n, &scoped_options, context);
 
                     let c = formatted.trailing_comment();
 
@@ -832,7 +836,7 @@ fn format_value(node: SyntaxNode, options: &Options, context: &Context) -> impl
 
                     debug_assert!(value.is_empty());
 
-                    formatted.write_to(&mut value, options);
+                    formatted.write_to(&mut value, &scoped_options);
                 }
                 _ => unreachable!(),
             },

crates/taplo/src/tests/formatter.rs

@@ -1,7 +1,6 @@
 use difference::Changeset;
 
-use crate::formatter;
-use crate::formatter::Options;
+use crate::formatter::{self, Options, OptionsIncomplete};
 
 macro_rules! assert_format {
     ($expected:expr, $actual:expr) => {
@@ -1176,3 +1175,31 @@ a = "b" # comment
 
     assert_format!(expected, &formatted);
 }
+
+#[test]
+fn test_entry_rule() {
+    let src = r#"
+[foo]
+sort_me = ["3", "2", "1"]
+sort_me_not = ["3", "2", "1"]
+"#;
+
+    let expected = r#"
+[foo]
+sort_me = ["1", "2", "3"]
+sort_me_not = ["3", "2", "1"]
+"#;
+
+    let dom = crate::parser::parse(src).into_dom();
+    let scopes = [(
+        "foo.sort_me",
+        OptionsIncomplete {
+            reorder_arrays: Some(true),
+            ..Default::default()
+        },
+    )];
+    let formatted =
+        crate::formatter::format_with_path_scopes(dom, Options::default(), &[], scopes).unwrap();
+
+    assert_format!(expected, &formatted);
+}