merge_tools: pass Matcher in for interactive use

For `jj split --interactive`, the user will want to select changes from a subset of files. This means that we need to pass the `Matcher` object when materializing the list of changed files. I also updated the parameter lists so that the matcher always immediately follows the tree objects.

cli/src/cli_util.rs

@@ -1478,6 +1478,7 @@ impl WorkspaceCommandTransaction<'_> {
         ui: &Ui,
         left_tree: &MergedTree,
         right_tree: &MergedTree,
+        matcher: &dyn Matcher,
         instructions: &str,
     ) -> Result<MergedTreeId, CommandError> {
         let base_ignores = self.helper.base_ignores();
@@ -1486,6 +1487,7 @@ impl WorkspaceCommandTransaction<'_> {
             ui,
             left_tree,
             right_tree,
+            matcher,
             instructions,
             base_ignores,
             settings,
@@ -1497,12 +1499,12 @@ impl WorkspaceCommandTransaction<'_> {
         ui: &Ui,
         left_tree: &MergedTree,
         right_tree: &MergedTree,
+        matcher: &dyn Matcher,
         instructions: &str,
         interactive: bool,
-        matcher: &dyn Matcher,
     ) -> Result<MergedTreeId, CommandError> {
         if interactive {
-            self.edit_diff(ui, left_tree, right_tree, instructions)
+            self.edit_diff(ui, left_tree, right_tree, matcher, instructions)
         } else if matcher.visit(&RepoPath::root()) == Visit::AllRecursively {
             // Optimization for a common case
             Ok(right_tree.id().clone())

cli/src/commands/mod.rs

@@ -2413,9 +2413,9 @@ from the source will be moved into the destination.
         ui,
         &parent_tree,
         &source_tree,
+        matcher.as_ref(),
         &instructions,
         args.interactive,
-        matcher.as_ref(),
     )?;
     if args.interactive && new_parent_tree_id == parent_tree.id() {
         return Err(user_error("No changes to move"));
@@ -2497,9 +2497,9 @@ from the source will be moved into the parent.
         ui,
         &parent_tree,
         &tree,
+        matcher.as_ref(),
         &instructions,
         args.interactive,
-        matcher.as_ref(),
     )?;
     if &new_parent_tree_id == parent.tree_id() {
         if args.interactive {
@@ -2593,7 +2593,13 @@ aborted.
             tx.format_commit_summary(&commit)
         );
         let parent_tree = parent.tree()?;
-        new_parent_tree_id = tx.edit_diff(ui, &parent_base_tree, &parent_tree, &instructions)?;
+        new_parent_tree_id = tx.edit_diff(
+            ui,
+            &parent_base_tree,
+            &parent_tree,
+            &EverythingMatcher,
+            &instructions,
+        )?;
         if new_parent_tree_id == parent_base_tree.id() {
             return Err(user_error("No changes selected"));
         }
@@ -2950,7 +2956,7 @@ don't make any changes, then the operation will be aborted.",
     );
     let base_tree = merge_commit_trees(tx.repo(), base_commits.as_slice())?;
     let tree = target_commit.tree()?;
-    let tree_id = tx.edit_diff(ui, &base_tree, &tree, &instructions)?;
+    let tree_id = tx.edit_diff(ui, &base_tree, &tree, &EverythingMatcher, &instructions)?;
     if tree_id == *target_commit.tree_id() {
         ui.write("Nothing changed.\n")?;
     } else {
@@ -3057,9 +3063,9 @@ don't make any changes, then the operation will be aborted.
         ui,
         &base_tree,
         &end_tree,
+        matcher.as_ref(),
         &instructions,
         interactive,
-        matcher.as_ref(),
     )?;
     if &tree_id == commit.tree_id() && interactive {
         ui.write("Nothing changed.\n")?;

cli/src/merge_tools/builtin.rs

@@ -6,7 +6,7 @@ use itertools::Itertools;
 use jj_lib::backend::{BackendError, FileId, MergedTreeId, ObjectId, TreeValue};
 use jj_lib::diff::{find_line_ranges, Diff, DiffHunk};
 use jj_lib::files::{self, ContentHunk, MergeResult};
-use jj_lib::matchers::EverythingMatcher;
+use jj_lib::matchers::Matcher;
 use jj_lib::merge::Merge;
 use jj_lib::merged_tree::{MergedTree, MergedTreeBuilder};
 use jj_lib::repo_path::RepoPath;
@@ -405,10 +405,11 @@ pub fn apply_diff_builtin(
 pub fn edit_diff_builtin(
     left_tree: &MergedTree,
     right_tree: &MergedTree,
+    matcher: &dyn Matcher,
 ) -> Result<MergedTreeId, BuiltinToolError> {
     let store = left_tree.store().clone();
     let changed_files = left_tree
-        .diff(right_tree, &EverythingMatcher)
+        .diff(right_tree, matcher)
         .map(|(path, _left, _right)| path)
         .collect_vec();
     let files = make_diff_files(&store, left_tree, right_tree, &changed_files)?;

cli/src/merge_tools/external.rs

@@ -10,7 +10,7 @@ use itertools::Itertools;
 use jj_lib::backend::{FileId, MergedTreeId, TreeValue};
 use jj_lib::conflicts::{self, materialize_merge_result};
 use jj_lib::gitignore::GitIgnoreFile;
-use jj_lib::matchers::{EverythingMatcher, Matcher};
+use jj_lib::matchers::Matcher;
 use jj_lib::merge::Merge;
 use jj_lib::merged_tree::{MergedTree, MergedTreeBuilder};
 use jj_lib::repo_path::RepoPath;
@@ -233,8 +233,8 @@ fn check_out_trees(
     store: &Arc<Store>,
     left_tree: &MergedTree,
     right_tree: &MergedTree,
-    output_is: Option<DiffSide>,
     matcher: &dyn Matcher,
+    output_is: Option<DiffSide>,
 ) -> Result<DiffWorkingCopies, DiffCheckoutError> {
     let changed_files = left_tree
         .diff(right_tree, matcher)
@@ -420,6 +420,7 @@ pub fn edit_diff_external(
     editor: ExternalMergeTool,
     left_tree: &MergedTree,
     right_tree: &MergedTree,
+    matcher: &dyn Matcher,
     instructions: &str,
     base_ignores: Arc<GitIgnoreFile>,
     settings: &UserSettings,
@@ -430,8 +431,8 @@ pub fn edit_diff_external(
         store,
         left_tree,
         right_tree,
+        matcher,
         got_output_field.then_some(DiffSide::Right),
-        &EverythingMatcher,
     )?;
     set_readonly_recursively(diff_wc.left_working_copy_path())
         .map_err(ExternalToolError::SetUpDir)?;
@@ -532,7 +533,7 @@ pub fn generate_diff(
     tool: &ExternalMergeTool,
 ) -> Result<(), DiffGenerateError> {
     let store = left_tree.store();
-    let diff_wc = check_out_trees(store, left_tree, right_tree, None, matcher)?;
+    let diff_wc = check_out_trees(store, left_tree, right_tree, matcher, None)?;
     set_readonly_recursively(diff_wc.left_working_copy_path())
         .map_err(ExternalToolError::SetUpDir)?;
     set_readonly_recursively(diff_wc.right_working_copy_path())

cli/src/merge_tools/mod.rs

@@ -21,6 +21,7 @@ use config::ConfigError;
 use jj_lib::backend::MergedTreeId;
 use jj_lib::conflicts::extract_as_single_hunk;
 use jj_lib::gitignore::GitIgnoreFile;
+use jj_lib::matchers::Matcher;
 use jj_lib::merged_tree::MergedTree;
 use jj_lib::repo_path::RepoPath;
 use jj_lib::settings::{ConfigResultExt as _, UserSettings};
@@ -130,6 +131,7 @@ pub fn edit_diff(
     ui: &Ui,
     left_tree: &MergedTree,
     right_tree: &MergedTree,
+    matcher: &dyn Matcher,
     instructions: &str,
     base_ignores: Arc<GitIgnoreFile>,
     settings: &UserSettings,
@@ -138,13 +140,14 @@ pub fn edit_diff(
     let editor = get_diff_editor_from_settings(ui, settings)?;
     match editor {
         MergeTool::Builtin => {
-            let tree_id = edit_diff_builtin(left_tree, right_tree).map_err(Box::new)?;
+            let tree_id = edit_diff_builtin(left_tree, right_tree, matcher).map_err(Box::new)?;
             Ok(tree_id)
         }
         MergeTool::External(editor) => edit_diff_external(
             editor,
             left_tree,
             right_tree,
+            matcher,
             instructions,
             base_ignores,
             settings,