1285 lines
42 KiB
Rust
1285 lines
42 KiB
Rust
use anyhow::{anyhow, Result};
|
|
use collections::{btree_map, hash_map, BTreeMap, HashMap, HashSet};
|
|
use gpui::AppContext;
|
|
use lazy_static::lazy_static;
|
|
use schemars::{gen::SchemaGenerator, schema::RootSchema, JsonSchema};
|
|
use serde::{de::DeserializeOwned, Deserialize as _, Serialize};
|
|
use smallvec::SmallVec;
|
|
use std::{
|
|
any::{type_name, Any, TypeId},
|
|
fmt::Debug,
|
|
mem,
|
|
ops::Range,
|
|
path::Path,
|
|
str,
|
|
sync::Arc,
|
|
};
|
|
use util::{merge_non_null_json_value_into, RangeExt, ResultExt as _};
|
|
|
|
/// A value that can be defined as a user setting.
|
|
///
|
|
/// Settings can be loaded from a combination of multiple JSON files.
|
|
pub trait Setting: 'static {
|
|
/// The name of a key within the JSON file from which this setting should
|
|
/// be deserialized. If this is `None`, then the setting will be deserialized
|
|
/// from the root object.
|
|
const KEY: Option<&'static str>;
|
|
|
|
/// The type that is stored in an individual JSON file.
|
|
type FileContent: Clone + Serialize + DeserializeOwned + JsonSchema;
|
|
|
|
/// The logic for combining together values from one or more JSON files into the
|
|
/// final value for this setting.
|
|
///
|
|
/// The user values are ordered from least specific (the global settings file)
|
|
/// to most specific (the innermost local settings file).
|
|
fn load(
|
|
default_value: &Self::FileContent,
|
|
user_values: &[&Self::FileContent],
|
|
cx: &AppContext,
|
|
) -> Self;
|
|
|
|
fn json_schema(generator: &mut SchemaGenerator, _: &SettingsJsonSchemaParams) -> RootSchema {
|
|
generator.root_schema_for::<Self::FileContent>()
|
|
}
|
|
|
|
fn json_merge(
|
|
default_value: &Self::FileContent,
|
|
user_values: &[&Self::FileContent],
|
|
) -> Result<Self::FileContent> {
|
|
let mut merged = serde_json::Value::Null;
|
|
for value in [default_value].iter().chain(user_values) {
|
|
merge_non_null_json_value_into(serde_json::to_value(value).unwrap(), &mut merged);
|
|
}
|
|
Ok(serde_json::from_value(merged)?)
|
|
}
|
|
|
|
fn load_via_json_merge(
|
|
default_value: &Self::FileContent,
|
|
user_values: &[&Self::FileContent],
|
|
) -> Self
|
|
where
|
|
Self: DeserializeOwned,
|
|
{
|
|
let mut merged = serde_json::Value::Null;
|
|
for value in [default_value].iter().chain(user_values) {
|
|
merge_non_null_json_value_into(serde_json::to_value(value).unwrap(), &mut merged);
|
|
}
|
|
serde_json::from_value(merged).unwrap()
|
|
}
|
|
}
|
|
|
|
pub struct SettingsJsonSchemaParams<'a> {
|
|
pub theme_names: &'a [String],
|
|
pub language_names: &'a [String],
|
|
}
|
|
|
|
/// A set of strongly-typed setting values defined via multiple JSON files.
|
|
#[derive(Default)]
|
|
pub struct SettingsStore {
|
|
setting_values: HashMap<TypeId, Box<dyn AnySettingValue>>,
|
|
default_deserialized_settings: Option<DeserializedSettingMap>,
|
|
user_deserialized_settings: Option<DeserializedSettingMap>,
|
|
local_deserialized_settings: BTreeMap<Arc<Path>, DeserializedSettingMap>,
|
|
changed_setting_types: HashSet<TypeId>,
|
|
tab_size_callback: Option<(TypeId, Box<dyn Fn(&dyn Any) -> Option<usize>>)>,
|
|
}
|
|
|
|
#[derive(Debug)]
|
|
struct SettingValue<T> {
|
|
global_value: Option<T>,
|
|
local_values: Vec<(Arc<Path>, T)>,
|
|
}
|
|
|
|
trait AnySettingValue {
|
|
fn key(&self) -> Option<&'static str>;
|
|
fn setting_type_name(&self) -> &'static str;
|
|
fn deserialize_setting(&self, json: &serde_json::Value) -> Result<DeserializedSetting>;
|
|
fn load_setting(
|
|
&self,
|
|
default_value: &DeserializedSetting,
|
|
custom: &[&DeserializedSetting],
|
|
cx: &AppContext,
|
|
) -> Box<dyn Any>;
|
|
fn value_for_path(&self, path: Option<&Path>) -> &dyn Any;
|
|
fn set_global_value(&mut self, value: Box<dyn Any>);
|
|
fn set_local_value(&mut self, path: Arc<Path>, value: Box<dyn Any>);
|
|
fn json_schema(
|
|
&self,
|
|
generator: &mut SchemaGenerator,
|
|
_: &SettingsJsonSchemaParams,
|
|
) -> RootSchema;
|
|
}
|
|
|
|
struct DeserializedSetting(Box<dyn Any>);
|
|
|
|
struct DeserializedSettingMap {
|
|
untyped: serde_json::Value,
|
|
typed: HashMap<TypeId, DeserializedSetting>,
|
|
}
|
|
|
|
impl SettingsStore {
|
|
/// Add a new type of setting to the store.
|
|
pub fn register_setting<T: Setting>(&mut self, cx: &AppContext) {
|
|
let setting_type_id = TypeId::of::<T>();
|
|
let entry = self.setting_values.entry(setting_type_id);
|
|
if matches!(entry, hash_map::Entry::Occupied(_)) {
|
|
return;
|
|
}
|
|
|
|
let setting_value = entry.or_insert(Box::new(SettingValue::<T> {
|
|
global_value: None,
|
|
local_values: Vec::new(),
|
|
}));
|
|
|
|
if let Some(default_settings) = self.default_deserialized_settings.as_mut() {
|
|
Self::load_setting_in_map(setting_type_id, setting_value, default_settings);
|
|
|
|
let mut user_values_stack = Vec::new();
|
|
if let Some(user_settings) = self.user_deserialized_settings.as_mut() {
|
|
Self::load_setting_in_map(setting_type_id, setting_value, user_settings);
|
|
if let Some(user_value) = user_settings.typed.get(&setting_type_id) {
|
|
user_values_stack = vec![user_value];
|
|
}
|
|
}
|
|
|
|
if let Some(default_deserialized_value) = default_settings.typed.get(&setting_type_id) {
|
|
setting_value.set_global_value(setting_value.load_setting(
|
|
default_deserialized_value,
|
|
&user_values_stack,
|
|
cx,
|
|
));
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Get the value of a setting.
|
|
///
|
|
/// Panics if the given setting type has not been registered, or if there is no
|
|
/// value for this setting.
|
|
pub fn get<T: Setting>(&self, path: Option<&Path>) -> &T {
|
|
self.setting_values
|
|
.get(&TypeId::of::<T>())
|
|
.unwrap_or_else(|| panic!("unregistered setting type {}", type_name::<T>()))
|
|
.value_for_path(path)
|
|
.downcast_ref::<T>()
|
|
.expect("no default value for setting type")
|
|
}
|
|
|
|
/// Get the user's settings as a raw JSON value.
|
|
///
|
|
/// This is only for debugging and reporting. For user-facing functionality,
|
|
/// use the typed setting interface.
|
|
pub fn untyped_user_settings(&self) -> &serde_json::Value {
|
|
self.user_deserialized_settings
|
|
.as_ref()
|
|
.map_or(&serde_json::Value::Null, |s| &s.untyped)
|
|
}
|
|
|
|
#[cfg(any(test, feature = "test-support"))]
|
|
pub fn test(cx: &AppContext) -> Self {
|
|
let mut this = Self::default();
|
|
this.set_default_settings(&crate::test_settings(), cx)
|
|
.unwrap();
|
|
this
|
|
}
|
|
|
|
/// Update the value of a setting in the user's global configuration.
|
|
///
|
|
/// This is only for tests. Normally, settings are only loaded from
|
|
/// JSON files.
|
|
#[cfg(any(test, feature = "test-support"))]
|
|
pub fn update_user_settings<T: Setting>(
|
|
&mut self,
|
|
cx: &AppContext,
|
|
update: impl FnOnce(&mut T::FileContent),
|
|
) {
|
|
let old_text = if let Some(user_settings) = &self.user_deserialized_settings {
|
|
serde_json::to_string(&user_settings.untyped).unwrap()
|
|
} else {
|
|
String::new()
|
|
};
|
|
let new_text = self.new_text_for_update::<T>(old_text, update);
|
|
self.set_user_settings(&new_text, cx).unwrap();
|
|
}
|
|
|
|
/// Update the value of a setting in a JSON file, returning the new text
|
|
/// for that JSON file.
|
|
pub fn new_text_for_update<T: Setting>(
|
|
&self,
|
|
old_text: String,
|
|
update: impl FnOnce(&mut T::FileContent),
|
|
) -> String {
|
|
let edits = self.edits_for_update::<T>(&old_text, update);
|
|
let mut new_text = old_text;
|
|
for (range, replacement) in edits.into_iter().rev() {
|
|
new_text.replace_range(range, &replacement);
|
|
}
|
|
new_text
|
|
}
|
|
|
|
/// Update the value of a setting in a JSON file, returning a list
|
|
/// of edits to apply to the JSON file.
|
|
pub fn edits_for_update<T: Setting>(
|
|
&self,
|
|
text: &str,
|
|
update: impl FnOnce(&mut T::FileContent),
|
|
) -> Vec<(Range<usize>, String)> {
|
|
let setting_type_id = TypeId::of::<T>();
|
|
let old_content = self
|
|
.user_deserialized_settings
|
|
.as_ref()
|
|
.unwrap()
|
|
.typed
|
|
.get(&setting_type_id)
|
|
.unwrap()
|
|
.0
|
|
.downcast_ref::<T::FileContent>()
|
|
.unwrap()
|
|
.clone();
|
|
let mut new_content = old_content.clone();
|
|
update(&mut new_content);
|
|
|
|
let mut parser = tree_sitter::Parser::new();
|
|
parser.set_language(tree_sitter_json::language()).unwrap();
|
|
let tree = parser.parse(text, None).unwrap();
|
|
|
|
let old_value = &serde_json::to_value(old_content).unwrap();
|
|
let new_value = &serde_json::to_value(new_content).unwrap();
|
|
|
|
let mut key_path = Vec::new();
|
|
if let Some(key) = T::KEY {
|
|
key_path.push(key);
|
|
}
|
|
|
|
let mut edits = Vec::new();
|
|
let tab_size = self.json_tab_size();
|
|
update_value_in_json_text(
|
|
&text,
|
|
&tree,
|
|
&mut key_path,
|
|
tab_size,
|
|
&old_value,
|
|
&new_value,
|
|
&mut edits,
|
|
);
|
|
edits.sort_unstable_by_key(|e| e.0.start);
|
|
return edits;
|
|
}
|
|
|
|
/// Configure the tab sized when updating JSON files.
|
|
pub fn set_json_tab_size_callback<T: Setting>(
|
|
&mut self,
|
|
get_tab_size: fn(&T) -> Option<usize>,
|
|
) {
|
|
self.tab_size_callback = Some((
|
|
TypeId::of::<T>(),
|
|
Box::new(move |value| get_tab_size(value.downcast_ref::<T>().unwrap())),
|
|
));
|
|
}
|
|
|
|
fn json_tab_size(&self) -> usize {
|
|
const DEFAULT_JSON_TAB_SIZE: usize = 2;
|
|
|
|
if let Some((setting_type_id, callback)) = &self.tab_size_callback {
|
|
let setting_value = self.setting_values.get(setting_type_id).unwrap();
|
|
let value = setting_value.value_for_path(None);
|
|
if let Some(value) = callback(value) {
|
|
return value;
|
|
}
|
|
}
|
|
|
|
DEFAULT_JSON_TAB_SIZE
|
|
}
|
|
|
|
/// Set the default settings via a JSON string.
|
|
///
|
|
/// The string should contain a JSON object with a default value for every setting.
|
|
pub fn set_default_settings(
|
|
&mut self,
|
|
default_settings_content: &str,
|
|
cx: &AppContext,
|
|
) -> Result<()> {
|
|
let deserialized_setting_map = self.load_setting_map(default_settings_content)?;
|
|
if deserialized_setting_map.typed.len() != self.setting_values.len() {
|
|
return Err(anyhow!(
|
|
"default settings file is missing fields: {:?}",
|
|
self.setting_values
|
|
.iter()
|
|
.filter(|(type_id, _)| !deserialized_setting_map.typed.contains_key(type_id))
|
|
.map(|(name, _)| *name)
|
|
.collect::<Vec<_>>()
|
|
));
|
|
}
|
|
self.default_deserialized_settings = Some(deserialized_setting_map);
|
|
self.recompute_values(false, None, None, cx);
|
|
Ok(())
|
|
}
|
|
|
|
/// Set the user settings via a JSON string.
|
|
pub fn set_user_settings(
|
|
&mut self,
|
|
user_settings_content: &str,
|
|
cx: &AppContext,
|
|
) -> Result<()> {
|
|
let user_settings = self.load_setting_map(user_settings_content)?;
|
|
let old_user_settings =
|
|
mem::replace(&mut self.user_deserialized_settings, Some(user_settings));
|
|
self.recompute_values(true, None, old_user_settings, cx);
|
|
Ok(())
|
|
}
|
|
|
|
/// Add or remove a set of local settings via a JSON string.
|
|
pub fn set_local_settings(
|
|
&mut self,
|
|
path: Arc<Path>,
|
|
settings_content: Option<&str>,
|
|
cx: &AppContext,
|
|
) -> Result<()> {
|
|
let removed_map = if let Some(settings_content) = settings_content {
|
|
self.local_deserialized_settings
|
|
.insert(path.clone(), self.load_setting_map(settings_content)?);
|
|
None
|
|
} else {
|
|
self.local_deserialized_settings.remove(&path)
|
|
};
|
|
self.recompute_values(true, Some(&path), removed_map, cx);
|
|
Ok(())
|
|
}
|
|
|
|
pub fn json_schema(&self, schema_params: &SettingsJsonSchemaParams) -> serde_json::Value {
|
|
use schemars::{
|
|
gen::SchemaSettings,
|
|
schema::{Schema, SchemaObject},
|
|
};
|
|
|
|
let settings = SchemaSettings::draft07().with(|settings| {
|
|
settings.option_add_null_type = false;
|
|
});
|
|
let mut generator = SchemaGenerator::new(settings);
|
|
let mut combined_schema = RootSchema::default();
|
|
|
|
for setting_value in self.setting_values.values() {
|
|
let setting_schema = setting_value.json_schema(&mut generator, schema_params);
|
|
combined_schema
|
|
.definitions
|
|
.extend(setting_schema.definitions);
|
|
|
|
let target_schema = if let Some(key) = setting_value.key() {
|
|
let key_schema = combined_schema
|
|
.schema
|
|
.object()
|
|
.properties
|
|
.entry(key.to_string())
|
|
.or_insert_with(|| Schema::Object(SchemaObject::default()));
|
|
if let Schema::Object(key_schema) = key_schema {
|
|
key_schema
|
|
} else {
|
|
continue;
|
|
}
|
|
} else {
|
|
&mut combined_schema.schema
|
|
};
|
|
|
|
merge_schema(target_schema, setting_schema.schema);
|
|
}
|
|
|
|
fn merge_schema(target: &mut SchemaObject, source: SchemaObject) {
|
|
if let Some(source) = source.object {
|
|
let target_properties = &mut target.object().properties;
|
|
for (key, value) in source.properties {
|
|
match target_properties.entry(key) {
|
|
btree_map::Entry::Vacant(e) => {
|
|
e.insert(value);
|
|
}
|
|
btree_map::Entry::Occupied(e) => {
|
|
if let (Schema::Object(target), Schema::Object(src)) =
|
|
(e.into_mut(), value)
|
|
{
|
|
merge_schema(target, src);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
overwrite(&mut target.instance_type, source.instance_type);
|
|
overwrite(&mut target.string, source.string);
|
|
overwrite(&mut target.number, source.number);
|
|
overwrite(&mut target.reference, source.reference);
|
|
overwrite(&mut target.array, source.array);
|
|
overwrite(&mut target.enum_values, source.enum_values);
|
|
|
|
fn overwrite<T>(target: &mut Option<T>, source: Option<T>) {
|
|
if let Some(source) = source {
|
|
*target = Some(source);
|
|
}
|
|
}
|
|
}
|
|
|
|
serde_json::to_value(&combined_schema).unwrap()
|
|
}
|
|
|
|
fn recompute_values(
|
|
&mut self,
|
|
user_settings_changed: bool,
|
|
changed_local_path: Option<&Path>,
|
|
old_settings_map: Option<DeserializedSettingMap>,
|
|
cx: &AppContext,
|
|
) {
|
|
// Identify all of the setting types that have changed.
|
|
let new_settings_map = if let Some(changed_path) = changed_local_path {
|
|
self.local_deserialized_settings.get(changed_path)
|
|
} else if user_settings_changed {
|
|
self.user_deserialized_settings.as_ref()
|
|
} else {
|
|
self.default_deserialized_settings.as_ref()
|
|
};
|
|
self.changed_setting_types.clear();
|
|
for map in [old_settings_map.as_ref(), new_settings_map] {
|
|
if let Some(map) = map {
|
|
self.changed_setting_types.extend(map.typed.keys());
|
|
}
|
|
}
|
|
|
|
// Reload the global and local values for every changed setting.
|
|
let mut user_values_stack = Vec::<&DeserializedSetting>::new();
|
|
for setting_type_id in self.changed_setting_types.iter() {
|
|
let setting_value = self.setting_values.get_mut(setting_type_id).unwrap();
|
|
|
|
// Build the prioritized list of deserialized values to pass to the setting's
|
|
// load function.
|
|
user_values_stack.clear();
|
|
if let Some(user_settings) = &self.user_deserialized_settings {
|
|
if let Some(user_value) = user_settings.typed.get(setting_type_id) {
|
|
user_values_stack.push(&user_value);
|
|
}
|
|
}
|
|
|
|
let default_deserialized_value = if let Some(value) = self
|
|
.default_deserialized_settings
|
|
.as_ref()
|
|
.and_then(|map| map.typed.get(setting_type_id))
|
|
{
|
|
value
|
|
} else {
|
|
continue;
|
|
};
|
|
|
|
// If the global settings file changed, reload the global value for the field.
|
|
if changed_local_path.is_none() {
|
|
setting_value.set_global_value(setting_value.load_setting(
|
|
default_deserialized_value,
|
|
&user_values_stack,
|
|
cx,
|
|
));
|
|
}
|
|
|
|
// Reload the local values for the setting.
|
|
let user_value_stack_len = user_values_stack.len();
|
|
for (path, deserialized_values) in &self.local_deserialized_settings {
|
|
// If a local settings file changed, then avoid recomputing local
|
|
// settings for any path outside of that directory.
|
|
if changed_local_path.map_or(false, |changed_local_path| {
|
|
!path.starts_with(changed_local_path)
|
|
}) {
|
|
continue;
|
|
}
|
|
|
|
// Ignore recomputing settings for any path that hasn't customized that setting.
|
|
let Some(deserialized_value) = deserialized_values.typed.get(setting_type_id) else {
|
|
continue;
|
|
};
|
|
|
|
// Build a stack of all of the local values for that setting.
|
|
user_values_stack.truncate(user_value_stack_len);
|
|
for (preceding_path, preceding_deserialized_values) in
|
|
&self.local_deserialized_settings
|
|
{
|
|
if preceding_path >= path {
|
|
break;
|
|
}
|
|
if !path.starts_with(preceding_path) {
|
|
continue;
|
|
}
|
|
|
|
if let Some(preceding_deserialized_value) =
|
|
preceding_deserialized_values.typed.get(setting_type_id)
|
|
{
|
|
user_values_stack.push(&*preceding_deserialized_value);
|
|
}
|
|
}
|
|
user_values_stack.push(&*deserialized_value);
|
|
|
|
// Load the local value for the field.
|
|
setting_value.set_local_value(
|
|
path.clone(),
|
|
setting_value.load_setting(default_deserialized_value, &user_values_stack, cx),
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Deserialize the given JSON string into a map keyed by setting type.
|
|
///
|
|
/// Returns an error if the string doesn't contain a valid JSON object.
|
|
fn load_setting_map(&self, json: &str) -> Result<DeserializedSettingMap> {
|
|
let mut map = DeserializedSettingMap {
|
|
untyped: parse_json_with_comments(json)?,
|
|
typed: HashMap::default(),
|
|
};
|
|
for (setting_type_id, setting_value) in self.setting_values.iter() {
|
|
Self::load_setting_in_map(*setting_type_id, setting_value, &mut map);
|
|
}
|
|
Ok(map)
|
|
}
|
|
|
|
fn load_setting_in_map(
|
|
setting_type_id: TypeId,
|
|
setting_value: &Box<dyn AnySettingValue>,
|
|
map: &mut DeserializedSettingMap,
|
|
) {
|
|
let value = if let Some(setting_key) = setting_value.key() {
|
|
if let Some(value) = map.untyped.get(setting_key) {
|
|
value
|
|
} else {
|
|
return;
|
|
}
|
|
} else {
|
|
&map.untyped
|
|
};
|
|
|
|
if let Some(deserialized_value) = setting_value.deserialize_setting(&value).log_err() {
|
|
map.typed.insert(setting_type_id, deserialized_value);
|
|
}
|
|
}
|
|
}
|
|
|
|
impl<T: Setting> AnySettingValue for SettingValue<T> {
|
|
fn key(&self) -> Option<&'static str> {
|
|
T::KEY
|
|
}
|
|
|
|
fn setting_type_name(&self) -> &'static str {
|
|
type_name::<T>()
|
|
}
|
|
|
|
fn load_setting(
|
|
&self,
|
|
default_value: &DeserializedSetting,
|
|
user_values: &[&DeserializedSetting],
|
|
cx: &AppContext,
|
|
) -> Box<dyn Any> {
|
|
let default_value = default_value.0.downcast_ref::<T::FileContent>().unwrap();
|
|
let values: SmallVec<[&T::FileContent; 6]> = user_values
|
|
.iter()
|
|
.map(|value| value.0.downcast_ref().unwrap())
|
|
.collect();
|
|
Box::new(T::load(default_value, &values, cx))
|
|
}
|
|
|
|
fn deserialize_setting(&self, json: &serde_json::Value) -> Result<DeserializedSetting> {
|
|
let value = T::FileContent::deserialize(json)?;
|
|
Ok(DeserializedSetting(Box::new(value)))
|
|
}
|
|
|
|
fn value_for_path(&self, path: Option<&Path>) -> &dyn Any {
|
|
if let Some(path) = path {
|
|
for (settings_path, value) in self.local_values.iter().rev() {
|
|
if path.starts_with(&settings_path) {
|
|
return value;
|
|
}
|
|
}
|
|
}
|
|
self.global_value
|
|
.as_ref()
|
|
.expect("no default value for setting")
|
|
}
|
|
|
|
fn set_global_value(&mut self, value: Box<dyn Any>) {
|
|
self.global_value = Some(*value.downcast().unwrap());
|
|
}
|
|
|
|
fn set_local_value(&mut self, path: Arc<Path>, value: Box<dyn Any>) {
|
|
let value = *value.downcast().unwrap();
|
|
match self.local_values.binary_search_by_key(&&path, |e| &e.0) {
|
|
Ok(ix) => self.local_values[ix].1 = value,
|
|
Err(ix) => self.local_values.insert(ix, (path, value)),
|
|
}
|
|
}
|
|
|
|
fn json_schema(
|
|
&self,
|
|
generator: &mut SchemaGenerator,
|
|
params: &SettingsJsonSchemaParams,
|
|
) -> RootSchema {
|
|
T::json_schema(generator, params)
|
|
}
|
|
}
|
|
|
|
// impl Debug for SettingsStore {
|
|
// fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
|
// return f
|
|
// .debug_struct("SettingsStore")
|
|
// .field(
|
|
// "setting_value_sets_by_type",
|
|
// &self
|
|
// .setting_values
|
|
// .values()
|
|
// .map(|set| (set.setting_type_name(), set))
|
|
// .collect::<HashMap<_, _>>(),
|
|
// )
|
|
// .finish_non_exhaustive();
|
|
// }
|
|
// }
|
|
|
|
fn update_value_in_json_text<'a>(
|
|
text: &str,
|
|
syntax_tree: &tree_sitter::Tree,
|
|
key_path: &mut Vec<&'a str>,
|
|
tab_size: usize,
|
|
old_value: &'a serde_json::Value,
|
|
new_value: &'a serde_json::Value,
|
|
edits: &mut Vec<(Range<usize>, String)>,
|
|
) {
|
|
// If the old and new values are both objects, then compare them key by key,
|
|
// preserving the comments and formatting of the unchanged parts. Otherwise,
|
|
// replace the old value with the new value.
|
|
if let (serde_json::Value::Object(old_object), serde_json::Value::Object(new_object)) =
|
|
(old_value, new_value)
|
|
{
|
|
for (key, old_sub_value) in old_object.iter() {
|
|
key_path.push(key);
|
|
let new_sub_value = new_object.get(key).unwrap_or(&serde_json::Value::Null);
|
|
update_value_in_json_text(
|
|
text,
|
|
syntax_tree,
|
|
key_path,
|
|
tab_size,
|
|
old_sub_value,
|
|
new_sub_value,
|
|
edits,
|
|
);
|
|
key_path.pop();
|
|
}
|
|
for (key, new_sub_value) in new_object.iter() {
|
|
key_path.push(key);
|
|
if !old_object.contains_key(key) {
|
|
update_value_in_json_text(
|
|
text,
|
|
syntax_tree,
|
|
key_path,
|
|
tab_size,
|
|
&serde_json::Value::Null,
|
|
new_sub_value,
|
|
edits,
|
|
);
|
|
}
|
|
key_path.pop();
|
|
}
|
|
} else if old_value != new_value {
|
|
let (range, replacement) =
|
|
replace_value_in_json_text(text, syntax_tree, &key_path, tab_size, &new_value);
|
|
edits.push((range, replacement));
|
|
}
|
|
}
|
|
|
|
fn replace_value_in_json_text(
|
|
text: &str,
|
|
syntax_tree: &tree_sitter::Tree,
|
|
key_path: &[&str],
|
|
tab_size: usize,
|
|
new_value: impl Serialize,
|
|
) -> (Range<usize>, String) {
|
|
const LANGUAGE_OVERRIDES: &'static str = "language_overrides";
|
|
const LANGUAGES: &'static str = "languages";
|
|
|
|
lazy_static! {
|
|
static ref PAIR_QUERY: tree_sitter::Query = tree_sitter::Query::new(
|
|
tree_sitter_json::language(),
|
|
"(pair key: (string) @key value: (_) @value)",
|
|
)
|
|
.unwrap();
|
|
}
|
|
|
|
let mut cursor = tree_sitter::QueryCursor::new();
|
|
|
|
let has_language_overrides = text.contains(LANGUAGE_OVERRIDES);
|
|
|
|
let mut depth = 0;
|
|
let mut last_value_range = 0..0;
|
|
let mut first_key_start = None;
|
|
let mut existing_value_range = 0..text.len();
|
|
let matches = cursor.matches(&PAIR_QUERY, syntax_tree.root_node(), text.as_bytes());
|
|
for mat in matches {
|
|
if mat.captures.len() != 2 {
|
|
continue;
|
|
}
|
|
|
|
let key_range = mat.captures[0].node.byte_range();
|
|
let value_range = mat.captures[1].node.byte_range();
|
|
|
|
// Don't enter sub objects until we find an exact
|
|
// match for the current keypath
|
|
if last_value_range.contains_inclusive(&value_range) {
|
|
continue;
|
|
}
|
|
|
|
last_value_range = value_range.clone();
|
|
|
|
if key_range.start > existing_value_range.end {
|
|
break;
|
|
}
|
|
|
|
first_key_start.get_or_insert_with(|| key_range.start);
|
|
|
|
let found_key = text
|
|
.get(key_range.clone())
|
|
.map(|key_text| {
|
|
if key_path[depth] == LANGUAGES && has_language_overrides {
|
|
return key_text == format!("\"{}\"", LANGUAGE_OVERRIDES);
|
|
} else {
|
|
return key_text == format!("\"{}\"", key_path[depth]);
|
|
}
|
|
})
|
|
.unwrap_or(false);
|
|
|
|
if found_key {
|
|
existing_value_range = value_range;
|
|
// Reset last value range when increasing in depth
|
|
last_value_range = existing_value_range.start..existing_value_range.start;
|
|
depth += 1;
|
|
|
|
if depth == key_path.len() {
|
|
break;
|
|
} else {
|
|
first_key_start = None;
|
|
}
|
|
}
|
|
}
|
|
|
|
// We found the exact key we want, insert the new value
|
|
if depth == key_path.len() {
|
|
let new_val = to_pretty_json(&new_value, tab_size, tab_size * depth);
|
|
(existing_value_range, new_val)
|
|
} else {
|
|
// We have key paths, construct the sub objects
|
|
let new_key = if has_language_overrides && key_path[depth] == LANGUAGES {
|
|
LANGUAGE_OVERRIDES
|
|
} else {
|
|
key_path[depth]
|
|
};
|
|
|
|
// We don't have the key, construct the nested objects
|
|
let mut new_value = serde_json::to_value(new_value).unwrap();
|
|
for key in key_path[(depth + 1)..].iter().rev() {
|
|
if has_language_overrides && key == &LANGUAGES {
|
|
new_value = serde_json::json!({ LANGUAGE_OVERRIDES.to_string(): new_value });
|
|
} else {
|
|
new_value = serde_json::json!({ key.to_string(): new_value });
|
|
}
|
|
}
|
|
|
|
if let Some(first_key_start) = first_key_start {
|
|
let mut row = 0;
|
|
let mut column = 0;
|
|
for (ix, char) in text.char_indices() {
|
|
if ix == first_key_start {
|
|
break;
|
|
}
|
|
if char == '\n' {
|
|
row += 1;
|
|
column = 0;
|
|
} else {
|
|
column += char.len_utf8();
|
|
}
|
|
}
|
|
|
|
if row > 0 {
|
|
// depth is 0 based, but division needs to be 1 based.
|
|
let new_val = to_pretty_json(&new_value, column / (depth + 1), column);
|
|
let space = ' ';
|
|
let content = format!("\"{new_key}\": {new_val},\n{space:width$}", width = column);
|
|
(first_key_start..first_key_start, content)
|
|
} else {
|
|
let new_val = serde_json::to_string(&new_value).unwrap();
|
|
let mut content = format!(r#""{new_key}": {new_val},"#);
|
|
content.push(' ');
|
|
(first_key_start..first_key_start, content)
|
|
}
|
|
} else {
|
|
new_value = serde_json::json!({ new_key.to_string(): new_value });
|
|
let indent_prefix_len = 4 * depth;
|
|
let mut new_val = to_pretty_json(&new_value, 4, indent_prefix_len);
|
|
if depth == 0 {
|
|
new_val.push('\n');
|
|
}
|
|
|
|
(existing_value_range, new_val)
|
|
}
|
|
}
|
|
}
|
|
|
|
fn to_pretty_json(value: &impl Serialize, indent_size: usize, indent_prefix_len: usize) -> String {
|
|
const SPACES: [u8; 32] = [b' '; 32];
|
|
|
|
debug_assert!(indent_size <= SPACES.len());
|
|
debug_assert!(indent_prefix_len <= SPACES.len());
|
|
|
|
let mut output = Vec::new();
|
|
let mut ser = serde_json::Serializer::with_formatter(
|
|
&mut output,
|
|
serde_json::ser::PrettyFormatter::with_indent(&SPACES[0..indent_size.min(SPACES.len())]),
|
|
);
|
|
|
|
value.serialize(&mut ser).unwrap();
|
|
let text = String::from_utf8(output).unwrap();
|
|
|
|
let mut adjusted_text = String::new();
|
|
for (i, line) in text.split('\n').enumerate() {
|
|
if i > 0 {
|
|
adjusted_text.push_str(str::from_utf8(&SPACES[0..indent_prefix_len]).unwrap());
|
|
}
|
|
adjusted_text.push_str(line);
|
|
adjusted_text.push('\n');
|
|
}
|
|
adjusted_text.pop();
|
|
adjusted_text
|
|
}
|
|
|
|
pub fn parse_json_with_comments<T: DeserializeOwned>(content: &str) -> Result<T> {
|
|
Ok(serde_json::from_reader(
|
|
json_comments::CommentSettings::c_style().strip_comments(content.as_bytes()),
|
|
)?)
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
use serde_derive::Deserialize;
|
|
use unindent::Unindent;
|
|
|
|
#[gpui::test]
|
|
fn test_settings_store_basic(cx: &mut AppContext) {
|
|
let mut store = SettingsStore::default();
|
|
store.register_setting::<UserSettings>(cx);
|
|
store.register_setting::<TurboSetting>(cx);
|
|
store.register_setting::<MultiKeySettings>(cx);
|
|
|
|
// error - missing required field in default settings
|
|
store
|
|
.set_default_settings(
|
|
r#"{
|
|
"user": {
|
|
"name": "John Doe",
|
|
"age": 30,
|
|
"staff": false
|
|
}
|
|
}"#,
|
|
cx,
|
|
)
|
|
.unwrap_err();
|
|
|
|
// error - type error in default settings
|
|
store
|
|
.set_default_settings(
|
|
r#"{
|
|
"turbo": "the-wrong-type",
|
|
"user": {
|
|
"name": "John Doe",
|
|
"age": 30,
|
|
"staff": false
|
|
}
|
|
}"#,
|
|
cx,
|
|
)
|
|
.unwrap_err();
|
|
|
|
// valid default settings.
|
|
store
|
|
.set_default_settings(
|
|
r#"{
|
|
"turbo": false,
|
|
"user": {
|
|
"name": "John Doe",
|
|
"age": 30,
|
|
"staff": false
|
|
}
|
|
}"#,
|
|
cx,
|
|
)
|
|
.unwrap();
|
|
|
|
assert_eq!(store.get::<TurboSetting>(None), &TurboSetting(false));
|
|
assert_eq!(
|
|
store.get::<UserSettings>(None),
|
|
&UserSettings {
|
|
name: "John Doe".to_string(),
|
|
age: 30,
|
|
staff: false,
|
|
}
|
|
);
|
|
assert_eq!(
|
|
store.get::<MultiKeySettings>(None),
|
|
&MultiKeySettings {
|
|
key1: String::new(),
|
|
key2: String::new(),
|
|
}
|
|
);
|
|
|
|
store
|
|
.set_user_settings(
|
|
r#"{
|
|
"turbo": true,
|
|
"user": { "age": 31 },
|
|
"key1": "a"
|
|
}"#,
|
|
cx,
|
|
)
|
|
.unwrap();
|
|
|
|
assert_eq!(store.get::<TurboSetting>(None), &TurboSetting(true));
|
|
assert_eq!(
|
|
store.get::<UserSettings>(None),
|
|
&UserSettings {
|
|
name: "John Doe".to_string(),
|
|
age: 31,
|
|
staff: false
|
|
}
|
|
);
|
|
|
|
store
|
|
.set_local_settings(
|
|
Path::new("/root1").into(),
|
|
Some(r#"{ "user": { "staff": true } }"#),
|
|
cx,
|
|
)
|
|
.unwrap();
|
|
store
|
|
.set_local_settings(
|
|
Path::new("/root1/subdir").into(),
|
|
Some(r#"{ "user": { "name": "Jane Doe" } }"#),
|
|
cx,
|
|
)
|
|
.unwrap();
|
|
|
|
store
|
|
.set_local_settings(
|
|
Path::new("/root2").into(),
|
|
Some(r#"{ "user": { "age": 42 }, "key2": "b" }"#),
|
|
cx,
|
|
)
|
|
.unwrap();
|
|
|
|
assert_eq!(
|
|
store.get::<UserSettings>(Some(Path::new("/root1/something"))),
|
|
&UserSettings {
|
|
name: "John Doe".to_string(),
|
|
age: 31,
|
|
staff: true
|
|
}
|
|
);
|
|
assert_eq!(
|
|
store.get::<UserSettings>(Some(Path::new("/root1/subdir/something"))),
|
|
&UserSettings {
|
|
name: "Jane Doe".to_string(),
|
|
age: 31,
|
|
staff: true
|
|
}
|
|
);
|
|
assert_eq!(
|
|
store.get::<UserSettings>(Some(Path::new("/root2/something"))),
|
|
&UserSettings {
|
|
name: "John Doe".to_string(),
|
|
age: 42,
|
|
staff: false
|
|
}
|
|
);
|
|
assert_eq!(
|
|
store.get::<MultiKeySettings>(Some(Path::new("/root2/something"))),
|
|
&MultiKeySettings {
|
|
key1: "a".to_string(),
|
|
key2: "b".to_string(),
|
|
}
|
|
);
|
|
}
|
|
|
|
#[gpui::test]
|
|
fn test_setting_store_assign_json_before_register(cx: &mut AppContext) {
|
|
let mut store = SettingsStore::default();
|
|
store
|
|
.set_default_settings(
|
|
r#"{
|
|
"turbo": true,
|
|
"user": {
|
|
"name": "John Doe",
|
|
"age": 30,
|
|
"staff": false
|
|
},
|
|
"key1": "x"
|
|
}"#,
|
|
cx,
|
|
)
|
|
.unwrap();
|
|
store
|
|
.set_user_settings(r#"{ "turbo": false }"#, cx)
|
|
.unwrap();
|
|
store.register_setting::<UserSettings>(cx);
|
|
store.register_setting::<TurboSetting>(cx);
|
|
|
|
assert_eq!(store.get::<TurboSetting>(None), &TurboSetting(false));
|
|
assert_eq!(
|
|
store.get::<UserSettings>(None),
|
|
&UserSettings {
|
|
name: "John Doe".to_string(),
|
|
age: 30,
|
|
staff: false,
|
|
}
|
|
);
|
|
|
|
store.register_setting::<MultiKeySettings>(cx);
|
|
assert_eq!(
|
|
store.get::<MultiKeySettings>(None),
|
|
&MultiKeySettings {
|
|
key1: "x".into(),
|
|
key2: String::new(),
|
|
}
|
|
);
|
|
}
|
|
|
|
#[gpui::test]
|
|
fn test_setting_store_update(cx: &mut AppContext) {
|
|
let mut store = SettingsStore::default();
|
|
store.register_setting::<MultiKeySettings>(cx);
|
|
store.register_setting::<UserSettings>(cx);
|
|
store.register_setting::<LanguageSettings>(cx);
|
|
|
|
// entries added and updated
|
|
check_settings_update::<LanguageSettings>(
|
|
&mut store,
|
|
r#"{
|
|
"languages": {
|
|
"JSON": {
|
|
"is_enabled": true
|
|
}
|
|
}
|
|
}"#
|
|
.unindent(),
|
|
|settings| {
|
|
settings.languages.get_mut("JSON").unwrap().is_enabled = false;
|
|
settings
|
|
.languages
|
|
.insert("Rust".into(), LanguageSettingEntry { is_enabled: true });
|
|
},
|
|
r#"{
|
|
"languages": {
|
|
"Rust": {
|
|
"is_enabled": true
|
|
},
|
|
"JSON": {
|
|
"is_enabled": false
|
|
}
|
|
}
|
|
}"#
|
|
.unindent(),
|
|
cx,
|
|
);
|
|
|
|
// weird formatting
|
|
check_settings_update::<UserSettings>(
|
|
&mut store,
|
|
r#"{
|
|
"user": { "age": 36, "name": "Max", "staff": true }
|
|
}"#
|
|
.unindent(),
|
|
|settings| settings.age = Some(37),
|
|
r#"{
|
|
"user": { "age": 37, "name": "Max", "staff": true }
|
|
}"#
|
|
.unindent(),
|
|
cx,
|
|
);
|
|
|
|
// single-line formatting, other keys
|
|
check_settings_update::<MultiKeySettings>(
|
|
&mut store,
|
|
r#"{ "one": 1, "two": 2 }"#.unindent(),
|
|
|settings| settings.key1 = Some("x".into()),
|
|
r#"{ "key1": "x", "one": 1, "two": 2 }"#.unindent(),
|
|
cx,
|
|
);
|
|
|
|
// empty object
|
|
check_settings_update::<UserSettings>(
|
|
&mut store,
|
|
r#"{
|
|
"user": {}
|
|
}"#
|
|
.unindent(),
|
|
|settings| settings.age = Some(37),
|
|
r#"{
|
|
"user": {
|
|
"age": 37
|
|
}
|
|
}"#
|
|
.unindent(),
|
|
cx,
|
|
);
|
|
|
|
// no content
|
|
check_settings_update::<UserSettings>(
|
|
&mut store,
|
|
r#""#.unindent(),
|
|
|settings| settings.age = Some(37),
|
|
r#"{
|
|
"user": {
|
|
"age": 37
|
|
}
|
|
}
|
|
"#
|
|
.unindent(),
|
|
cx,
|
|
);
|
|
}
|
|
|
|
fn check_settings_update<T: Setting>(
|
|
store: &mut SettingsStore,
|
|
old_json: String,
|
|
update: fn(&mut T::FileContent),
|
|
expected_new_json: String,
|
|
cx: &mut AppContext,
|
|
) {
|
|
store.set_user_settings(&old_json, cx).ok();
|
|
let edits = store.edits_for_update::<T>(&old_json, update);
|
|
let mut new_json = old_json;
|
|
for (range, replacement) in edits.into_iter().rev() {
|
|
new_json.replace_range(range, &replacement);
|
|
}
|
|
pretty_assertions::assert_eq!(new_json, expected_new_json);
|
|
}
|
|
|
|
#[derive(Debug, PartialEq, Deserialize)]
|
|
struct UserSettings {
|
|
name: String,
|
|
age: u32,
|
|
staff: bool,
|
|
}
|
|
|
|
#[derive(Clone, Serialize, Deserialize, JsonSchema)]
|
|
struct UserSettingsJson {
|
|
name: Option<String>,
|
|
age: Option<u32>,
|
|
staff: Option<bool>,
|
|
}
|
|
|
|
impl Setting for UserSettings {
|
|
const KEY: Option<&'static str> = Some("user");
|
|
type FileContent = UserSettingsJson;
|
|
|
|
fn load(
|
|
default_value: &UserSettingsJson,
|
|
user_values: &[&UserSettingsJson],
|
|
_: &AppContext,
|
|
) -> Self {
|
|
Self::load_via_json_merge(default_value, user_values)
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Deserialize, PartialEq)]
|
|
struct TurboSetting(bool);
|
|
|
|
impl Setting for TurboSetting {
|
|
const KEY: Option<&'static str> = Some("turbo");
|
|
type FileContent = Option<bool>;
|
|
|
|
fn load(
|
|
default_value: &Option<bool>,
|
|
user_values: &[&Option<bool>],
|
|
_: &AppContext,
|
|
) -> Self {
|
|
Self::load_via_json_merge(default_value, user_values)
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Debug, PartialEq, Deserialize)]
|
|
struct MultiKeySettings {
|
|
#[serde(default)]
|
|
key1: String,
|
|
#[serde(default)]
|
|
key2: String,
|
|
}
|
|
|
|
#[derive(Clone, Serialize, Deserialize, JsonSchema)]
|
|
struct MultiKeySettingsJson {
|
|
key1: Option<String>,
|
|
key2: Option<String>,
|
|
}
|
|
|
|
impl Setting for MultiKeySettings {
|
|
const KEY: Option<&'static str> = None;
|
|
|
|
type FileContent = MultiKeySettingsJson;
|
|
|
|
fn load(
|
|
default_value: &MultiKeySettingsJson,
|
|
user_values: &[&MultiKeySettingsJson],
|
|
_: &AppContext,
|
|
) -> Self {
|
|
Self::load_via_json_merge(default_value, user_values)
|
|
}
|
|
}
|
|
|
|
#[derive(Debug, Deserialize)]
|
|
struct JournalSettings {
|
|
pub path: String,
|
|
pub hour_format: HourFormat,
|
|
}
|
|
|
|
#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
|
|
#[serde(rename_all = "snake_case")]
|
|
enum HourFormat {
|
|
Hour12,
|
|
Hour24,
|
|
}
|
|
|
|
#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
|
|
struct JournalSettingsJson {
|
|
pub path: Option<String>,
|
|
pub hour_format: Option<HourFormat>,
|
|
}
|
|
|
|
impl Setting for JournalSettings {
|
|
const KEY: Option<&'static str> = Some("journal");
|
|
|
|
type FileContent = JournalSettingsJson;
|
|
|
|
fn load(
|
|
default_value: &JournalSettingsJson,
|
|
user_values: &[&JournalSettingsJson],
|
|
_: &AppContext,
|
|
) -> Self {
|
|
Self::load_via_json_merge(default_value, user_values)
|
|
}
|
|
}
|
|
|
|
#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
|
|
struct LanguageSettings {
|
|
#[serde(default)]
|
|
languages: HashMap<String, LanguageSettingEntry>,
|
|
}
|
|
|
|
#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
|
|
struct LanguageSettingEntry {
|
|
is_enabled: bool,
|
|
}
|
|
|
|
impl Setting for LanguageSettings {
|
|
const KEY: Option<&'static str> = None;
|
|
|
|
type FileContent = Self;
|
|
|
|
fn load(default_value: &Self, user_values: &[&Self], _: &AppContext) -> Self {
|
|
Self::load_via_json_merge(default_value, user_values)
|
|
}
|
|
}
|
|
}
|