migrator.rs

  1use anyhow::{Context, Result};
  2use collections::HashMap;
  3use convert_case::{Case, Casing};
  4use std::{cmp::Reverse, ops::Range, sync::LazyLock};
  5use streaming_iterator::StreamingIterator;
  6use tree_sitter::{Query, QueryMatch};
  7
  8fn migrate(text: &str, patterns: MigrationPatterns, query: &Query) -> Result<Option<String>> {
  9    let mut parser = tree_sitter::Parser::new();
 10    parser.set_language(&tree_sitter_json::LANGUAGE.into())?;
 11    let syntax_tree = parser
 12        .parse(&text, None)
 13        .context("failed to parse settings")?;
 14
 15    let mut cursor = tree_sitter::QueryCursor::new();
 16    let mut matches = cursor.matches(query, syntax_tree.root_node(), text.as_bytes());
 17
 18    let mut edits = vec![];
 19    while let Some(mat) = matches.next() {
 20        if let Some((_, callback)) = patterns.get(mat.pattern_index) {
 21            edits.extend(callback(&text, &mat, query));
 22        }
 23    }
 24
 25    edits.sort_by_key(|(range, _)| (range.start, Reverse(range.end)));
 26    edits.dedup_by(|(range_b, _), (range_a, _)| {
 27        range_a.contains(&range_b.start) || range_a.contains(&range_b.end)
 28    });
 29
 30    if edits.is_empty() {
 31        Ok(None)
 32    } else {
 33        let mut new_text = text.to_string();
 34        for (range, replacement) in edits.iter().rev() {
 35            new_text.replace_range(range.clone(), replacement);
 36        }
 37        if new_text == text {
 38            log::error!(
 39                "Edits computed for configuration migration do not cause a change: {:?}",
 40                edits
 41            );
 42            Ok(None)
 43        } else {
 44            Ok(Some(new_text))
 45        }
 46    }
 47}
 48
 49pub fn migrate_keymap(text: &str) -> Result<Option<String>> {
 50    let transformed_text = migrate(
 51        text,
 52        KEYMAP_MIGRATION_TRANSFORMATION_PATTERNS,
 53        &KEYMAP_MIGRATION_TRANSFORMATION_QUERY,
 54    )?;
 55    let replacement_text = migrate(
 56        &transformed_text.as_ref().unwrap_or(&text.to_string()),
 57        KEYMAP_MIGRATION_REPLACEMENT_PATTERNS,
 58        &KEYMAP_MIGRATION_REPLACEMENT_QUERY,
 59    )?;
 60    Ok(replacement_text.or(transformed_text))
 61}
 62
 63pub fn migrate_settings(text: &str) -> Result<Option<String>> {
 64    migrate(
 65        &text,
 66        SETTINGS_MIGRATION_PATTERNS,
 67        &SETTINGS_MIGRATION_QUERY,
 68    )
 69}
 70
 71pub fn migrate_edit_prediction_provider_settings(text: &str) -> Result<Option<String>> {
 72    migrate(
 73        &text,
 74        &[(
 75            SETTINGS_REPLACE_NESTED_KEY,
 76            replace_edit_prediction_provider_setting,
 77        )],
 78        &EDIT_PREDICTION_SETTINGS_MIGRATION_QUERY,
 79    )
 80}
 81
 82type MigrationPatterns = &'static [(
 83    &'static str,
 84    fn(&str, &QueryMatch, &Query) -> Option<(Range<usize>, String)>,
 85)];
 86
 87const KEYMAP_MIGRATION_TRANSFORMATION_PATTERNS: MigrationPatterns = &[
 88    (ACTION_ARRAY_PATTERN, replace_array_with_single_string),
 89    (
 90        ACTION_ARGUMENT_OBJECT_PATTERN,
 91        replace_action_argument_object_with_single_value,
 92    ),
 93    (ACTION_STRING_PATTERN, rename_string_action),
 94    (CONTEXT_PREDICATE_PATTERN, rename_context_key),
 95];
 96
 97static KEYMAP_MIGRATION_TRANSFORMATION_QUERY: LazyLock<Query> = LazyLock::new(|| {
 98    Query::new(
 99        &tree_sitter_json::LANGUAGE.into(),
100        &KEYMAP_MIGRATION_TRANSFORMATION_PATTERNS
101            .iter()
102            .map(|pattern| pattern.0)
103            .collect::<String>(),
104    )
105    .unwrap()
106});
107
108const ACTION_ARRAY_PATTERN: &str = r#"(document
109    (array
110   	    (object
111            (pair
112                key: (string (string_content) @name)
113                value: (
114                    (object
115                        (pair
116                            key: (string)
117                            value: ((array
118                                . (string (string_content) @action_name)
119                                . (string (string_content) @argument)
120                                .)) @array
121                        )
122                    )
123                )
124            )
125        )
126    )
127    (#eq? @name "bindings")
128)"#;
129
130fn replace_array_with_single_string(
131    contents: &str,
132    mat: &QueryMatch,
133    query: &Query,
134) -> Option<(Range<usize>, String)> {
135    let array_ix = query.capture_index_for_name("array")?;
136    let action_name_ix = query.capture_index_for_name("action_name")?;
137    let argument_ix = query.capture_index_for_name("argument")?;
138
139    let action_name = contents.get(
140        mat.nodes_for_capture_index(action_name_ix)
141            .next()?
142            .byte_range(),
143    )?;
144    let argument = contents.get(
145        mat.nodes_for_capture_index(argument_ix)
146            .next()?
147            .byte_range(),
148    )?;
149
150    let replacement = TRANSFORM_ARRAY.get(&(action_name, argument))?;
151    let replacement_as_string = format!("\"{replacement}\"");
152    let range_to_replace = mat.nodes_for_capture_index(array_ix).next()?.byte_range();
153
154    Some((range_to_replace, replacement_as_string))
155}
156
157static TRANSFORM_ARRAY: LazyLock<HashMap<(&str, &str), &str>> = LazyLock::new(|| {
158    HashMap::from_iter([
159        // activate
160        (
161            ("workspace::ActivatePaneInDirection", "Up"),
162            "workspace::ActivatePaneUp",
163        ),
164        (
165            ("workspace::ActivatePaneInDirection", "Down"),
166            "workspace::ActivatePaneDown",
167        ),
168        (
169            ("workspace::ActivatePaneInDirection", "Left"),
170            "workspace::ActivatePaneLeft",
171        ),
172        (
173            ("workspace::ActivatePaneInDirection", "Right"),
174            "workspace::ActivatePaneRight",
175        ),
176        // swap
177        (
178            ("workspace::SwapPaneInDirection", "Up"),
179            "workspace::SwapPaneUp",
180        ),
181        (
182            ("workspace::SwapPaneInDirection", "Down"),
183            "workspace::SwapPaneDown",
184        ),
185        (
186            ("workspace::SwapPaneInDirection", "Left"),
187            "workspace::SwapPaneLeft",
188        ),
189        (
190            ("workspace::SwapPaneInDirection", "Right"),
191            "workspace::SwapPaneRight",
192        ),
193        // menu
194        (
195            ("app_menu::NavigateApplicationMenuInDirection", "Left"),
196            "app_menu::ActivateMenuLeft",
197        ),
198        (
199            ("app_menu::NavigateApplicationMenuInDirection", "Right"),
200            "app_menu::ActivateMenuRight",
201        ),
202        // vim push
203        (("vim::PushOperator", "Change"), "vim::PushChange"),
204        (("vim::PushOperator", "Delete"), "vim::PushDelete"),
205        (("vim::PushOperator", "Yank"), "vim::PushYank"),
206        (("vim::PushOperator", "Replace"), "vim::PushReplace"),
207        (
208            ("vim::PushOperator", "DeleteSurrounds"),
209            "vim::PushDeleteSurrounds",
210        ),
211        (("vim::PushOperator", "Mark"), "vim::PushMark"),
212        (("vim::PushOperator", "Indent"), "vim::PushIndent"),
213        (("vim::PushOperator", "Outdent"), "vim::PushOutdent"),
214        (("vim::PushOperator", "AutoIndent"), "vim::PushAutoIndent"),
215        (("vim::PushOperator", "Rewrap"), "vim::PushRewrap"),
216        (
217            ("vim::PushOperator", "ShellCommand"),
218            "vim::PushShellCommand",
219        ),
220        (("vim::PushOperator", "Lowercase"), "vim::PushLowercase"),
221        (("vim::PushOperator", "Uppercase"), "vim::PushUppercase"),
222        (
223            ("vim::PushOperator", "OppositeCase"),
224            "vim::PushOppositeCase",
225        ),
226        (("vim::PushOperator", "Register"), "vim::PushRegister"),
227        (
228            ("vim::PushOperator", "RecordRegister"),
229            "vim::PushRecordRegister",
230        ),
231        (
232            ("vim::PushOperator", "ReplayRegister"),
233            "vim::PushReplayRegister",
234        ),
235        (
236            ("vim::PushOperator", "ReplaceWithRegister"),
237            "vim::PushReplaceWithRegister",
238        ),
239        (
240            ("vim::PushOperator", "ToggleComments"),
241            "vim::PushToggleComments",
242        ),
243        // vim switch
244        (("vim::SwitchMode", "Normal"), "vim::SwitchToNormalMode"),
245        (("vim::SwitchMode", "Insert"), "vim::SwitchToInsertMode"),
246        (("vim::SwitchMode", "Replace"), "vim::SwitchToReplaceMode"),
247        (("vim::SwitchMode", "Visual"), "vim::SwitchToVisualMode"),
248        (
249            ("vim::SwitchMode", "VisualLine"),
250            "vim::SwitchToVisualLineMode",
251        ),
252        (
253            ("vim::SwitchMode", "VisualBlock"),
254            "vim::SwitchToVisualBlockMode",
255        ),
256        (
257            ("vim::SwitchMode", "HelixNormal"),
258            "vim::SwitchToHelixNormalMode",
259        ),
260        // vim resize
261        (("vim::ResizePane", "Widen"), "vim::ResizePaneRight"),
262        (("vim::ResizePane", "Narrow"), "vim::ResizePaneLeft"),
263        (("vim::ResizePane", "Shorten"), "vim::ResizePaneDown"),
264        (("vim::ResizePane", "Lengthen"), "vim::ResizePaneUp"),
265    ])
266});
267
268const ACTION_ARGUMENT_OBJECT_PATTERN: &str = r#"(document
269    (array
270        (object
271            (pair
272                key: (string (string_content) @name)
273                value: (
274                    (object
275                        (pair
276                            key: (string)
277                            value: ((array
278                                . (string (string_content) @action_name)
279                                . (object
280                                    (pair
281                                    key: (string (string_content) @action_key)
282                                    value: (_)  @argument))
283                                . ) @array
284                            ))
285                        )
286                    )
287                )
288            )
289        )
290        (#eq? @name "bindings")
291)"#;
292
293/// [ "editor::FoldAtLevel", { "level": 1 } ] -> [ "editor::FoldAtLevel", 1 ]
294fn replace_action_argument_object_with_single_value(
295    contents: &str,
296    mat: &QueryMatch,
297    query: &Query,
298) -> Option<(Range<usize>, String)> {
299    let array_ix = query.capture_index_for_name("array")?;
300    let action_name_ix = query.capture_index_for_name("action_name")?;
301    let action_key_ix = query.capture_index_for_name("action_key")?;
302    let argument_ix = query.capture_index_for_name("argument")?;
303
304    let action_name = contents.get(
305        mat.nodes_for_capture_index(action_name_ix)
306            .next()?
307            .byte_range(),
308    )?;
309    let action_key = contents.get(
310        mat.nodes_for_capture_index(action_key_ix)
311            .next()?
312            .byte_range(),
313    )?;
314    let argument = contents.get(
315        mat.nodes_for_capture_index(argument_ix)
316            .next()?
317            .byte_range(),
318    )?;
319
320    let new_action_name = UNWRAP_OBJECTS.get(&action_name)?.get(&action_key)?;
321
322    let range_to_replace = mat.nodes_for_capture_index(array_ix).next()?.byte_range();
323    let replacement = format!("[\"{}\", {}]", new_action_name, argument);
324    Some((range_to_replace, replacement))
325}
326
327/// "ctrl-k ctrl-1": [ "editor::PushOperator", { "Object": {} } ] -> [ "editor::vim::PushObject", {} ]
328static UNWRAP_OBJECTS: LazyLock<HashMap<&str, HashMap<&str, &str>>> = LazyLock::new(|| {
329    HashMap::from_iter([
330        (
331            "editor::FoldAtLevel",
332            HashMap::from_iter([("level", "editor::FoldAtLevel")]),
333        ),
334        (
335            "vim::PushOperator",
336            HashMap::from_iter([
337                ("Object", "vim::PushObject"),
338                ("FindForward", "vim::PushFindForward"),
339                ("FindBackward", "vim::PushFindBackward"),
340                ("Sneak", "vim::PushSneak"),
341                ("SneakBackward", "vim::PushSneakBackward"),
342                ("AddSurrounds", "vim::PushAddSurrounds"),
343                ("ChangeSurrounds", "vim::PushChangeSurrounds"),
344                ("Jump", "vim::PushJump"),
345                ("Digraph", "vim::PushDigraph"),
346                ("Literal", "vim::PushLiteral"),
347            ]),
348        ),
349    ])
350});
351
352const KEYMAP_MIGRATION_REPLACEMENT_PATTERNS: MigrationPatterns = &[(
353    ACTION_ARGUMENT_SNAKE_CASE_PATTERN,
354    action_argument_snake_case,
355)];
356
357static KEYMAP_MIGRATION_REPLACEMENT_QUERY: LazyLock<Query> = LazyLock::new(|| {
358    Query::new(
359        &tree_sitter_json::LANGUAGE.into(),
360        &KEYMAP_MIGRATION_REPLACEMENT_PATTERNS
361            .iter()
362            .map(|pattern| pattern.0)
363            .collect::<String>(),
364    )
365    .unwrap()
366});
367
368const ACTION_STRING_PATTERN: &str = r#"(document
369    (array
370        (object
371            (pair
372                key: (string (string_content) @name)
373                value: (
374                    (object
375                        (pair
376                            key: (string)
377                            value: (string (string_content) @action_name)
378                        )
379                    )
380                )
381            )
382        )
383    )
384    (#eq? @name "bindings")
385)"#;
386
387fn rename_string_action(
388    contents: &str,
389    mat: &QueryMatch,
390    query: &Query,
391) -> Option<(Range<usize>, String)> {
392    let action_name_ix = query.capture_index_for_name("action_name")?;
393    let action_name_range = mat
394        .nodes_for_capture_index(action_name_ix)
395        .next()?
396        .byte_range();
397    let action_name = contents.get(action_name_range.clone())?;
398    let new_action_name = STRING_REPLACE.get(&action_name)?;
399    Some((action_name_range, new_action_name.to_string()))
400}
401
402/// "ctrl-k ctrl-1": "inline_completion::ToggleMenu" -> "edit_prediction::ToggleMenu"
403static STRING_REPLACE: LazyLock<HashMap<&str, &str>> = LazyLock::new(|| {
404    HashMap::from_iter([
405        (
406            "inline_completion::ToggleMenu",
407            "edit_prediction::ToggleMenu",
408        ),
409        ("editor::NextInlineCompletion", "editor::NextEditPrediction"),
410        (
411            "editor::PreviousInlineCompletion",
412            "editor::PreviousEditPrediction",
413        ),
414        (
415            "editor::AcceptPartialInlineCompletion",
416            "editor::AcceptPartialEditPrediction",
417        ),
418        ("editor::ShowInlineCompletion", "editor::ShowEditPrediction"),
419        (
420            "editor::AcceptInlineCompletion",
421            "editor::AcceptEditPrediction",
422        ),
423        (
424            "editor::ToggleInlineCompletions",
425            "editor::ToggleEditPrediction",
426        ),
427    ])
428});
429
430const CONTEXT_PREDICATE_PATTERN: &str = r#"
431(array
432    (object
433        (pair
434            key: (string (string_content) @name)
435            value: (string (string_content) @context_predicate)
436        )
437    )
438)
439(#eq? @name "context")
440"#;
441
442fn rename_context_key(
443    contents: &str,
444    mat: &QueryMatch,
445    query: &Query,
446) -> Option<(Range<usize>, String)> {
447    let context_predicate_ix = query.capture_index_for_name("context_predicate")?;
448    let context_predicate_range = mat
449        .nodes_for_capture_index(context_predicate_ix)
450        .next()?
451        .byte_range();
452    let old_predicate = contents.get(context_predicate_range.clone())?.to_string();
453    let mut new_predicate = old_predicate.to_string();
454    for (old_key, new_key) in CONTEXT_REPLACE.iter() {
455        new_predicate = new_predicate.replace(old_key, new_key);
456    }
457    if new_predicate != old_predicate {
458        Some((context_predicate_range, new_predicate.to_string()))
459    } else {
460        None
461    }
462}
463
464/// "context": "Editor && inline_completion && !showing_completions" -> "Editor && edit_prediction && !showing_completions"
465pub static CONTEXT_REPLACE: LazyLock<HashMap<&str, &str>> = LazyLock::new(|| {
466    HashMap::from_iter([
467        ("inline_completion", "edit_prediction"),
468        (
469            "inline_completion_requires_modifier",
470            "edit_prediction_requires_modifier",
471        ),
472    ])
473});
474
475const ACTION_ARGUMENT_SNAKE_CASE_PATTERN: &str = r#"(document
476    (array
477        (object
478            (pair
479                key: (string (string_content) @name)
480                value: (
481                    (object
482                        (pair
483                            key: (string)
484                            value: ((array
485                                . (string (string_content) @action_name)
486                                . (object
487                                    (pair
488                                    key: (string (string_content) @argument_key)
489                                    value: (_)  @argument_value))
490                                . ) @array
491                            ))
492                        )
493                    )
494                )
495            )
496        )
497    (#eq? @name "bindings")
498)"#;
499
500fn to_snake_case(text: &str) -> String {
501    text.to_case(Case::Snake)
502}
503
504fn action_argument_snake_case(
505    contents: &str,
506    mat: &QueryMatch,
507    query: &Query,
508) -> Option<(Range<usize>, String)> {
509    let array_ix = query.capture_index_for_name("array")?;
510    let action_name_ix = query.capture_index_for_name("action_name")?;
511    let argument_key_ix = query.capture_index_for_name("argument_key")?;
512    let argument_value_ix = query.capture_index_for_name("argument_value")?;
513    let action_name = contents.get(
514        mat.nodes_for_capture_index(action_name_ix)
515            .next()?
516            .byte_range(),
517    )?;
518
519    let replacement_key = ACTION_ARGUMENT_SNAKE_CASE_REPLACE.get(action_name)?;
520    let argument_key = contents.get(
521        mat.nodes_for_capture_index(argument_key_ix)
522            .next()?
523            .byte_range(),
524    )?;
525
526    if argument_key != *replacement_key {
527        return None;
528    }
529
530    let argument_value_node = mat.nodes_for_capture_index(argument_value_ix).next()?;
531    let argument_value = contents.get(argument_value_node.byte_range())?;
532
533    let new_key = to_snake_case(argument_key);
534    let new_value = if argument_value_node.kind() == "string" {
535        format!("\"{}\"", to_snake_case(argument_value.trim_matches('"')))
536    } else {
537        argument_value.to_string()
538    };
539
540    let range_to_replace = mat.nodes_for_capture_index(array_ix).next()?.byte_range();
541    let replacement = format!(
542        "[\"{}\", {{ \"{}\": {} }}]",
543        action_name, new_key, new_value
544    );
545
546    Some((range_to_replace, replacement))
547}
548
549pub static ACTION_ARGUMENT_SNAKE_CASE_REPLACE: LazyLock<HashMap<&str, &str>> =
550    LazyLock::new(|| {
551        HashMap::from_iter([
552            ("vim::NextWordStart", "ignorePunctuation"),
553            ("vim::NextWordEnd", "ignorePunctuation"),
554            ("vim::PreviousWordStart", "ignorePunctuation"),
555            ("vim::PreviousWordEnd", "ignorePunctuation"),
556            ("vim::MoveToNext", "partialWord"),
557            ("vim::MoveToPrev", "partialWord"),
558            ("vim::Down", "displayLines"),
559            ("vim::Up", "displayLines"),
560            ("vim::EndOfLine", "displayLines"),
561            ("vim::StartOfLine", "displayLines"),
562            ("vim::FirstNonWhitespace", "displayLines"),
563            ("pane::CloseActiveItem", "saveIntent"),
564            ("vim::Paste", "preserveClipboard"),
565            ("vim::Word", "ignorePunctuation"),
566            ("vim::Subword", "ignorePunctuation"),
567            ("vim::IndentObj", "includeBelow"),
568        ])
569    });
570
571const SETTINGS_MIGRATION_PATTERNS: MigrationPatterns = &[
572    (SETTINGS_STRING_REPLACE_QUERY, replace_setting_name),
573    (
574        SETTINGS_REPLACE_NESTED_KEY,
575        replace_edit_prediction_provider_setting,
576    ),
577    (
578        SETTINGS_REPLACE_IN_LANGUAGES_QUERY,
579        replace_setting_in_languages,
580    ),
581];
582
583static SETTINGS_MIGRATION_QUERY: LazyLock<Query> = LazyLock::new(|| {
584    Query::new(
585        &tree_sitter_json::LANGUAGE.into(),
586        &SETTINGS_MIGRATION_PATTERNS
587            .iter()
588            .map(|pattern| pattern.0)
589            .collect::<String>(),
590    )
591    .unwrap()
592});
593
594static EDIT_PREDICTION_SETTINGS_MIGRATION_QUERY: LazyLock<Query> = LazyLock::new(|| {
595    Query::new(
596        &tree_sitter_json::LANGUAGE.into(),
597        SETTINGS_REPLACE_NESTED_KEY,
598    )
599    .unwrap()
600});
601
602const SETTINGS_STRING_REPLACE_QUERY: &str = r#"(document
603    (object
604        (pair
605            key: (string (string_content) @name)
606            value: (_)
607        )
608    )
609)"#;
610
611fn replace_setting_name(
612    contents: &str,
613    mat: &QueryMatch,
614    query: &Query,
615) -> Option<(Range<usize>, String)> {
616    let setting_capture_ix = query.capture_index_for_name("name")?;
617    let setting_name_range = mat
618        .nodes_for_capture_index(setting_capture_ix)
619        .next()?
620        .byte_range();
621    let setting_name = contents.get(setting_name_range.clone())?;
622    let new_setting_name = SETTINGS_STRING_REPLACE.get(&setting_name)?;
623    Some((setting_name_range, new_setting_name.to_string()))
624}
625
626pub static SETTINGS_STRING_REPLACE: LazyLock<HashMap<&'static str, &'static str>> =
627    LazyLock::new(|| {
628        HashMap::from_iter([
629            (
630                "show_inline_completions_in_menu",
631                "show_edit_predictions_in_menu",
632            ),
633            ("show_inline_completions", "show_edit_predictions"),
634            (
635                "inline_completions_disabled_in",
636                "edit_predictions_disabled_in",
637            ),
638            ("inline_completions", "edit_predictions"),
639        ])
640    });
641
642const SETTINGS_REPLACE_NESTED_KEY: &str = r#"
643(object
644  (pair
645    key: (string (string_content) @parent_key)
646    value: (object
647        (pair
648            key: (string (string_content) @setting_name)
649            value: (_) @value
650        )
651    )
652  )
653)
654"#;
655
656fn replace_edit_prediction_provider_setting(
657    contents: &str,
658    mat: &QueryMatch,
659    query: &Query,
660) -> Option<(Range<usize>, String)> {
661    let parent_object_capture_ix = query.capture_index_for_name("parent_key")?;
662    let parent_object_range = mat
663        .nodes_for_capture_index(parent_object_capture_ix)
664        .next()?
665        .byte_range();
666    let parent_object_name = contents.get(parent_object_range.clone())?;
667
668    let setting_name_ix = query.capture_index_for_name("setting_name")?;
669    let setting_range = mat
670        .nodes_for_capture_index(setting_name_ix)
671        .next()?
672        .byte_range();
673    let setting_name = contents.get(setting_range.clone())?;
674
675    if parent_object_name == "features" && setting_name == "inline_completion_provider" {
676        return Some((setting_range, "edit_prediction_provider".into()));
677    }
678
679    None
680}
681
682const SETTINGS_REPLACE_IN_LANGUAGES_QUERY: &str = r#"
683(object
684  (pair
685    key: (string (string_content) @languages)
686    value: (object
687    (pair
688        key: (string)
689        value: (object
690            (pair
691                key: (string (string_content) @setting_name)
692                value: (_) @value
693            )
694        )
695    ))
696  )
697)
698(#eq? @languages "languages")
699"#;
700
701fn replace_setting_in_languages(
702    contents: &str,
703    mat: &QueryMatch,
704    query: &Query,
705) -> Option<(Range<usize>, String)> {
706    let setting_capture_ix = query.capture_index_for_name("setting_name")?;
707    let setting_name_range = mat
708        .nodes_for_capture_index(setting_capture_ix)
709        .next()?
710        .byte_range();
711    let setting_name = contents.get(setting_name_range.clone())?;
712    let new_setting_name = LANGUAGE_SETTINGS_REPLACE.get(&setting_name)?;
713
714    Some((setting_name_range, new_setting_name.to_string()))
715}
716
717static LANGUAGE_SETTINGS_REPLACE: LazyLock<HashMap<&'static str, &'static str>> =
718    LazyLock::new(|| {
719        HashMap::from_iter([
720            ("show_inline_completions", "show_edit_predictions"),
721            (
722                "inline_completions_disabled_in",
723                "edit_predictions_disabled_in",
724            ),
725        ])
726    });
727
728#[cfg(test)]
729mod tests {
730    use super::*;
731
732    fn assert_migrate_keymap(input: &str, output: Option<&str>) {
733        let migrated = migrate_keymap(&input).unwrap();
734        pretty_assertions::assert_eq!(migrated.as_deref(), output);
735    }
736
737    fn assert_migrate_settings(input: &str, output: Option<&str>) {
738        let migrated = migrate_settings(&input).unwrap();
739        pretty_assertions::assert_eq!(migrated.as_deref(), output);
740    }
741
742    #[test]
743    fn test_replace_array_with_single_string() {
744        assert_migrate_keymap(
745            r#"
746            [
747                {
748                    "bindings": {
749                        "cmd-1": ["workspace::ActivatePaneInDirection", "Up"]
750                    }
751                }
752            ]
753            "#,
754            Some(
755                r#"
756            [
757                {
758                    "bindings": {
759                        "cmd-1": "workspace::ActivatePaneUp"
760                    }
761                }
762            ]
763            "#,
764            ),
765        )
766    }
767
768    #[test]
769    fn test_replace_action_argument_object_with_single_value() {
770        assert_migrate_keymap(
771            r#"
772            [
773                {
774                    "bindings": {
775                        "cmd-1": ["editor::FoldAtLevel", { "level": 1 }]
776                    }
777                }
778            ]
779            "#,
780            Some(
781                r#"
782            [
783                {
784                    "bindings": {
785                        "cmd-1": ["editor::FoldAtLevel", 1]
786                    }
787                }
788            ]
789            "#,
790            ),
791        )
792    }
793
794    #[test]
795    fn test_replace_action_argument_object_with_single_value_2() {
796        assert_migrate_keymap(
797            r#"
798            [
799                {
800                    "bindings": {
801                        "cmd-1": ["vim::PushOperator", { "Object": { "some" : "value" } }]
802                    }
803                }
804            ]
805            "#,
806            Some(
807                r#"
808            [
809                {
810                    "bindings": {
811                        "cmd-1": ["vim::PushObject", { "some" : "value" }]
812                    }
813                }
814            ]
815            "#,
816            ),
817        )
818    }
819
820    #[test]
821    fn test_rename_string_action() {
822        assert_migrate_keymap(
823            r#"
824                [
825                    {
826                        "bindings": {
827                            "cmd-1": "inline_completion::ToggleMenu"
828                        }
829                    }
830                ]
831            "#,
832            Some(
833                r#"
834                [
835                    {
836                        "bindings": {
837                            "cmd-1": "edit_prediction::ToggleMenu"
838                        }
839                    }
840                ]
841            "#,
842            ),
843        )
844    }
845
846    #[test]
847    fn test_rename_context_key() {
848        assert_migrate_keymap(
849            r#"
850                [
851                    {
852                        "context": "Editor && inline_completion && !showing_completions"
853                    }
854                ]
855            "#,
856            Some(
857                r#"
858                [
859                    {
860                        "context": "Editor && edit_prediction && !showing_completions"
861                    }
862                ]
863            "#,
864            ),
865        )
866    }
867
868    #[test]
869    fn test_action_argument_snake_case() {
870        // First performs transformations, then replacements
871        assert_migrate_keymap(
872            r#"
873            [
874                {
875                    "bindings": {
876                        "cmd-1": ["vim::PushOperator", { "Object": { "around": false } }],
877                        "cmd-3": ["pane::CloseActiveItem", { "saveIntent": "saveAll" }],
878                        "cmd-2": ["vim::NextWordStart", { "ignorePunctuation": true }],
879                        "cmd-4": ["task::Spawn", { "task_name": "a b" }] // should remain as it is
880                    }
881                }
882            ]
883            "#,
884            Some(
885                r#"
886            [
887                {
888                    "bindings": {
889                        "cmd-1": ["vim::PushObject", { "around": false }],
890                        "cmd-3": ["pane::CloseActiveItem", { "save_intent": "save_all" }],
891                        "cmd-2": ["vim::NextWordStart", { "ignore_punctuation": true }],
892                        "cmd-4": ["task::Spawn", { "task_name": "a b" }] // should remain as it is
893                    }
894                }
895            ]
896            "#,
897            ),
898        )
899    }
900
901    #[test]
902    fn test_replace_setting_name() {
903        assert_migrate_settings(
904            r#"
905                {
906                    "show_inline_completions_in_menu": true,
907                    "show_inline_completions": true,
908                    "inline_completions_disabled_in": ["string"],
909                    "inline_completions": { "some" : "value" }
910                }
911            "#,
912            Some(
913                r#"
914                {
915                    "show_edit_predictions_in_menu": true,
916                    "show_edit_predictions": true,
917                    "edit_predictions_disabled_in": ["string"],
918                    "edit_predictions": { "some" : "value" }
919                }
920            "#,
921            ),
922        )
923    }
924
925    #[test]
926    fn test_nested_string_replace_for_settings() {
927        assert_migrate_settings(
928            r#"
929                {
930                    "features": {
931                        "inline_completion_provider": "zed"
932                    },
933                }
934            "#,
935            Some(
936                r#"
937                {
938                    "features": {
939                        "edit_prediction_provider": "zed"
940                    },
941                }
942            "#,
943            ),
944        )
945    }
946
947    #[test]
948    fn test_replace_settings_in_languages() {
949        assert_migrate_settings(
950            r#"
951                {
952                    "languages": {
953                        "Astro": {
954                            "show_inline_completions": true
955                        }
956                    }
957                }
958            "#,
959            Some(
960                r#"
961                {
962                    "languages": {
963                        "Astro": {
964                            "show_edit_predictions": true
965                        }
966                    }
967                }
968            "#,
969            ),
970        )
971    }
972}