Rename to imports_granularity

Configurations.md

@@ -1705,7 +1705,7 @@ pub enum Foo {}
 pub enum Foo {}
 ```
 
-## `imports_merge_style`
+## `imports_granularity`
 
 Merge together related imports based on their paths.
 
@@ -1751,7 +1751,7 @@ use qux::{h, i};
 
 ## `merge_imports`
 
-This option is deprecated. Use `imports_merge_style = "Crate"` instead.
+This option is deprecated. Use `imports_granularity = "Crate"` instead.
 
 - **Default value**: `false`
 - **Possible values**: `true`, `false`
@@ -2602,7 +2602,7 @@ Enable unstable features on stable and beta channels (unstable features are avai
 
 For example:
 ```bash
-rustfmt src/lib.rs --config unstable_features=true imports_merge_style=Crate
+rustfmt src/lib.rs --config unstable_features=true imports_granularity=Crate
 ```
 
 ## `use_field_init_shorthand`

src/config.rs

@@ -77,10 +77,11 @@ create_config! {
     // Imports
     imports_indent: IndentStyle, IndentStyle::Block, false, "Indent of imports";
     imports_layout: ListTactic, ListTactic::Mixed, false, "Item layout inside a import block";
-    imports_merge_style: ImportMergeStyle, ImportMergeStyle::Preserve, false, "Merge imports";
+    imports_granularity: ImportGranularity, ImportGranularity::Preserve, false,
+        "Merge or split imports to the provided granularity";
     group_imports: GroupImportsTactic, GroupImportsTactic::Preserve, false,
         "Controls the strategy for how imports are grouped together";
-    merge_imports: bool, false, false, "(deprecated: use imports_merge_style instead)";
+    merge_imports: bool, false, false, "(deprecated: use imports_granularity instead)";
 
     // Ordering
     reorder_imports: bool, true, true, "Reorder import and extern crate statements alphabetically";
@@ -447,9 +448,9 @@ mod test {
             single_line_if_else_max_width: usize, 50, true, "Maximum line length for single \
                 line if-else expressions. A value of zero means always break if-else expressions.";
             // merge_imports deprecation
-            imports_merge_style: ImportMergeStyle, ImportMergeStyle::Preserve, false,
+            imports_granularity: ImportGranularity, ImportGranularity::Preserve, false,
                 "Merge imports";
-            merge_imports: bool, false, false, "(deprecated: use imports_merge_style instead)";
+            merge_imports: bool, false, false, "(deprecated: use imports_granularity instead)";
 
             unstable_features: bool, false, true,
                 "Enables unstable features on stable and beta channels \
@@ -601,7 +602,7 @@ fn_single_line = false
 where_single_line = false
 imports_indent = "Block"
 imports_layout = "Mixed"
-imports_merge_style = "Preserve"
+imports_granularity = "Preserve"
 group_imports = "Preserve"
 reorder_imports = true
 reorder_modules = true
@@ -722,13 +723,13 @@ ignore = []
             }
             let toml = r#"
                 unstable_features = true
-                imports_merge_style = "Crate"
+                imports_granularity = "Crate"
             "#;
             let config = Config::from_toml(toml, Path::new("")).unwrap();
             assert_eq!(config.was_set().unstable_features(), true);
-            assert_eq!(config.was_set().imports_merge_style(), true);
+            assert_eq!(config.was_set().imports_granularity(), true);
             assert_eq!(config.unstable_features(), true);
-            assert_eq!(config.imports_merge_style(), ImportMergeStyle::Crate);
+            assert_eq!(config.imports_granularity(), ImportGranularity::Crate);
         }
 
         #[test]
@@ -738,9 +739,9 @@ ignore = []
                 return;
             }
             let config =
-                Config::from_toml("imports_merge_style = \"Crate\"", Path::new("")).unwrap();
-            assert_eq!(config.was_set().imports_merge_style(), false);
-            assert_eq!(config.imports_merge_style(), ImportMergeStyle::Preserve);
+                Config::from_toml("imports_granularity = \"Crate\"", Path::new("")).unwrap();
+            assert_eq!(config.was_set().imports_granularity(), false);
+            assert_eq!(config.imports_granularity(), ImportGranularity::Preserve);
         }
 
         #[test]
@@ -785,12 +786,12 @@ ignore = []
             }
             let mut config = Config::default();
             assert_eq!(config.unstable_features(), false);
-            config.override_value("imports_merge_style", "Crate");
-            assert_eq!(config.imports_merge_style(), ImportMergeStyle::Preserve);
+            config.override_value("imports_granularity", "Crate");
+            assert_eq!(config.imports_granularity(), ImportGranularity::Preserve);
             config.override_value("unstable_features", "true");
             assert_eq!(config.unstable_features(), true);
-            config.override_value("imports_merge_style", "Crate");
-            assert_eq!(config.imports_merge_style(), ImportMergeStyle::Crate);
+            config.override_value("imports_granularity", "Crate");
+            assert_eq!(config.imports_granularity(), ImportGranularity::Crate);
         }
 
         #[test]
@@ -1055,18 +1056,18 @@ ignore = []
                 merge_imports = true
             "#;
             let config = Config::from_toml(toml, Path::new("")).unwrap();
-            assert_eq!(config.imports_merge_style(), ImportMergeStyle::Crate);
+            assert_eq!(config.imports_granularity(), ImportGranularity::Crate);
         }
 
         #[test]
         fn test_both_set() {
             let toml = r#"
                 unstable_features = true
                 merge_imports = true
-                imports_merge_style = "Preserve"
+                imports_granularity = "Preserve"
             "#;
             let config = Config::from_toml(toml, Path::new("")).unwrap();
-            assert_eq!(config.imports_merge_style(), ImportMergeStyle::Preserve);
+            assert_eq!(config.imports_granularity(), ImportGranularity::Preserve);
         }
 
         #[test]
@@ -1076,20 +1077,20 @@ ignore = []
                 merge_imports = true
             "#;
             let mut config = Config::from_toml(toml, Path::new("")).unwrap();
-            config.override_value("imports_merge_style", "Preserve");
-            assert_eq!(config.imports_merge_style(), ImportMergeStyle::Preserve);
+            config.override_value("imports_granularity", "Preserve");
+            assert_eq!(config.imports_granularity(), ImportGranularity::Preserve);
         }
 
         #[test]
         fn test_old_overridden() {
             let toml = r#"
                 unstable_features = true
-                imports_merge_style = "Module"
+                imports_granularity = "Module"
             "#;
             let mut config = Config::from_toml(toml, Path::new("")).unwrap();
             config.override_value("merge_imports", "true");
             // no effect: the new option always takes precedence
-            assert_eq!(config.imports_merge_style(), ImportMergeStyle::Module);
+            assert_eq!(config.imports_granularity(), ImportGranularity::Module);
         }
     }
 }

src/config/config_type.rs

@@ -436,13 +436,13 @@ macro_rules! create_config {
                 if self.was_set().merge_imports() {
                     eprintln!(
                         "Warning: the `merge_imports` option is deprecated. \
-                        Use `imports_merge_style=Crate` instead"
+                        Use `imports_granularity=Crate` instead"
                     );
-                    if !self.was_set().imports_merge_style() {
-                        self.imports_merge_style.2 = if self.merge_imports() {
-                            ImportMergeStyle::Crate
+                    if !self.was_set().imports_granularity() {
+                        self.imports_granularity.2 = if self.merge_imports() {
+                            ImportGranularity::Crate
                         } else {
-                            ImportMergeStyle::Preserve
+                            ImportGranularity::Preserve
                         };
                     }
                 }

src/config/options.rs

@@ -121,7 +121,7 @@ pub enum GroupImportsTactic {
 
 #[config_type]
 /// How to merge imports.
-pub enum ImportMergeStyle {
+pub enum ImportGranularity {
     /// Do not merge imports.
     Preserve,
     /// Use one `use` statement per crate.

src/formatting/reorder.rs

@@ -11,7 +11,7 @@ use std::cmp::{Ord, Ordering};
 use rustc_ast::ast;
 use rustc_span::{symbol::sym, Span};
 
-use crate::config::{Config, GroupImportsTactic, ImportMergeStyle};
+use crate::config::{Config, GroupImportsTactic, ImportGranularity};
 use crate::formatting::imports::UseSegment;
 use crate::formatting::modules::{get_mod_inner_attrs, FileModMap};
 use crate::formatting::{
@@ -228,14 +228,14 @@ fn rewrite_reorderable_or_regroupable_items(
             for (item, list_item) in normalized_items.iter_mut().zip(list_items) {
                 item.list_item = Some(list_item.clone());
             }
-            match context.config.imports_merge_style() {
-                ImportMergeStyle::Crate => {
+            match context.config.imports_granularity() {
+                ImportGranularity::Crate => {
                     normalized_items = merge_use_trees(normalized_items, SharedPrefix::Crate)
                 }
-                ImportMergeStyle::Module => {
+                ImportGranularity::Module => {
                     normalized_items = merge_use_trees(normalized_items, SharedPrefix::Module)
                 }
-                ImportMergeStyle::Preserve => {}
+                ImportGranularity::Preserve => {}
             }
 
             let mut regrouped_items = match context.config.group_imports() {

src/rustfmt/main.rs

@@ -100,7 +100,7 @@ struct Opt {
     /// Set options from command line.
     ///
     /// Set configuration options via command line by specifying a list of key-value pairs
-    /// separated by commas (e.g., rustfmt --config=max_width=100,imports_merge_style=Crate).
+    /// separated by commas (e.g., rustfmt --config=max_width=100,imports_granularity=Crate).
     /// These settings precedes any other settings specified in configuration files.
     #[structopt(long = "config")]
     inline_config: Option<Vec<InlineConfig>>,

tests/source/configs/group_imports/StdExternalCrate-merge_imports.rs

@@ -1,5 +1,5 @@
 // rustfmt-group_imports: StdExternalCrate
-// rustfmt-imports_merge_style: Crate
+// rustfmt-imports_granularity: Crate
 use chrono::Utc;
 use super::update::convert_publish_payload;
 

tests/source/configs/imports_layout/merge_mixed.rs

@@ -1,5 +1,5 @@
 // rustfmt-imports_indent: Block
-// rustfmt-imports_merge_style: Crate
+// rustfmt-imports_granularity: Crate
 // rustfmt-imports_layout: Mixed
 
 use std::{fmt, io, str};

tests/source/imports_merge_style_crate.rs → tests/source/imports_granularity_crate.rs

@@ -1,4 +1,4 @@
-// rustfmt-imports_merge_style: Crate
+// rustfmt-imports_granularity: Crate
 
 use a::{c,d,b};
 use a::{d, e, b, a, f};

tests/source/imports_merge_style_module.rs → tests/source/imports_granularity_module.rs

@@ -1,4 +1,4 @@
-// rustfmt-imports_merge_style: Module
+// rustfmt-imports_granularity: Module
 
 use a::{b::c, d::e};
 use a::{f, g::{h, i}};

tests/source/issue-3750.rs

@@ -1,4 +1,4 @@
-// rustfmt-imports_merge_style: Crate
+// rustfmt-imports_granularity: Crate
 
 pub mod foo {
     pub mod bar {

tests/target/configs/group_imports/StdExternalCrate-merge_imports.rs

@@ -1,5 +1,5 @@
 // rustfmt-group_imports: StdExternalCrate
-// rustfmt-imports_merge_style: Crate
+// rustfmt-imports_granularity: Crate
 use alloc::{alloc::Layout, vec::Vec};
 use core::f32;
 use std::sync::Arc;

tests/target/configs/imports_layout/merge_mixed.rs

@@ -1,5 +1,5 @@
 // rustfmt-imports_indent: Block
-// rustfmt-imports_merge_style: Crate
+// rustfmt-imports_granularity: Crate
 // rustfmt-imports_layout: Mixed
 
 use std::{fmt, io, str, str::FromStr};

tests/target/imports_merge_style_crate.rs → tests/target/imports_granularity_crate.rs

@@ -1,4 +1,4 @@
-// rustfmt-imports_merge_style: Crate
+// rustfmt-imports_granularity: Crate
 
 use a::{a, b, c, d, e, f, g};
 

tests/target/imports_merge_style_module.rs → tests/target/imports_granularity_module.rs

@@ -1,4 +1,4 @@
-// rustfmt-imports_merge_style: Module
+// rustfmt-imports_granularity: Module
 
 use a::b::c;
 use a::d::e;

tests/target/issue-3750.rs

@@ -1,4 +1,4 @@
-// rustfmt-imports_merge_style: Crate
+// rustfmt-imports_granularity: Crate
 
 pub mod foo {
     pub mod bar {