Revert "override nested arrays when merging TOML (#2145)"
Looks like there's some follow-up issues
This reverts commit c8cfd0b1a0
.
This commit is contained in:
parent
1525e3c6c8
commit
35d2693630
2 changed files with 24 additions and 79 deletions
|
@ -19,7 +19,7 @@ pub fn user_lang_config() -> Result<toml::Value, toml::de::Error> {
|
|||
.into_iter()
|
||||
.chain([default_lang_config()].into_iter())
|
||||
.fold(toml::Value::Table(toml::value::Table::default()), |a, b| {
|
||||
crate::merge_toml_values(b, a, false)
|
||||
crate::merge_toml_values(b, a)
|
||||
});
|
||||
|
||||
Ok(config)
|
||||
|
|
|
@ -98,24 +98,8 @@ pub fn find_root_impl(root: Option<&str>, root_markers: &[String]) -> Vec<std::p
|
|||
directories
|
||||
}
|
||||
|
||||
/// Merge two TOML documents, merging values from `right` onto `left`
|
||||
///
|
||||
/// When an array exists in both `left` and `right`, `right`'s array is
|
||||
/// used. When a table exists in both `left` and `right`, the merged table
|
||||
/// consists of all keys in `left`'s table unioned with all keys in `right`
|
||||
/// with the values of `right` being merged recursively onto values of
|
||||
/// `left`.
|
||||
///
|
||||
/// `merge_toplevel_arrays` controls whether a top-level array in the TOML
|
||||
/// document is merged instead of overridden. This is useful for TOML
|
||||
/// documents that use a top-level array of values like the `languages.toml`,
|
||||
/// where one usually wants to override or add to the array instead of
|
||||
/// replacing it altogether.
|
||||
pub fn merge_toml_values(
|
||||
left: toml::Value,
|
||||
right: toml::Value,
|
||||
merge_toplevel_arrays: bool,
|
||||
) -> toml::Value {
|
||||
// right overrides left
|
||||
pub fn merge_toml_values(left: toml::Value, right: toml::Value) -> toml::Value {
|
||||
use toml::Value;
|
||||
|
||||
fn get_name(v: &Value) -> Option<&str> {
|
||||
|
@ -124,35 +108,24 @@ pub fn merge_toml_values(
|
|||
|
||||
match (left, right) {
|
||||
(Value::Array(mut left_items), Value::Array(right_items)) => {
|
||||
// The top-level arrays should be merged but nested arrays should
|
||||
// act as overrides. For the `languages.toml` config, this means
|
||||
// that you can specify a sub-set of languages in an overriding
|
||||
// `languages.toml` but that nested arrays like Language Server
|
||||
// arguments are replaced instead of merged.
|
||||
if merge_toplevel_arrays {
|
||||
left_items.reserve(right_items.len());
|
||||
for rvalue in right_items {
|
||||
let lvalue = get_name(&rvalue)
|
||||
.and_then(|rname| {
|
||||
left_items.iter().position(|v| get_name(v) == Some(rname))
|
||||
})
|
||||
.map(|lpos| left_items.remove(lpos));
|
||||
let mvalue = match lvalue {
|
||||
Some(lvalue) => merge_toml_values(lvalue, rvalue, false),
|
||||
None => rvalue,
|
||||
};
|
||||
left_items.push(mvalue);
|
||||
}
|
||||
Value::Array(left_items)
|
||||
} else {
|
||||
Value::Array(right_items)
|
||||
left_items.reserve(right_items.len());
|
||||
for rvalue in right_items {
|
||||
let lvalue = get_name(&rvalue)
|
||||
.and_then(|rname| left_items.iter().position(|v| get_name(v) == Some(rname)))
|
||||
.map(|lpos| left_items.remove(lpos));
|
||||
let mvalue = match lvalue {
|
||||
Some(lvalue) => merge_toml_values(lvalue, rvalue),
|
||||
None => rvalue,
|
||||
};
|
||||
left_items.push(mvalue);
|
||||
}
|
||||
Value::Array(left_items)
|
||||
}
|
||||
(Value::Table(mut left_map), Value::Table(right_map)) => {
|
||||
for (rname, rvalue) in right_map {
|
||||
match left_map.remove(&rname) {
|
||||
Some(lvalue) => {
|
||||
let merged_value = merge_toml_values(lvalue, rvalue, merge_toplevel_arrays);
|
||||
let merged_value = merge_toml_values(lvalue, rvalue);
|
||||
left_map.insert(rname, merged_value);
|
||||
}
|
||||
None => {
|
||||
|
@ -170,22 +143,23 @@ pub fn merge_toml_values(
|
|||
#[cfg(test)]
|
||||
mod merge_toml_tests {
|
||||
use super::merge_toml_values;
|
||||
use toml::Value;
|
||||
|
||||
#[test]
|
||||
fn language_toml_map_merges() {
|
||||
const USER: &str = r#"
|
||||
fn language_tomls() {
|
||||
use toml::Value;
|
||||
|
||||
const USER: &str = "
|
||||
[[language]]
|
||||
name = "nix"
|
||||
test = "bbb"
|
||||
indent = { tab-width = 4, unit = " ", test = "aaa" }
|
||||
"#;
|
||||
name = \"nix\"
|
||||
test = \"bbb\"
|
||||
indent = { tab-width = 4, unit = \" \", test = \"aaa\" }
|
||||
";
|
||||
|
||||
let base: Value = toml::from_slice(include_bytes!("../../languages.toml"))
|
||||
.expect("Couldn't parse built-in languages config");
|
||||
let user: Value = toml::from_str(USER).unwrap();
|
||||
|
||||
let merged = merge_toml_values(base, user, true);
|
||||
let merged = merge_toml_values(base, user);
|
||||
let languages = merged.get("language").unwrap().as_array().unwrap();
|
||||
let nix = languages
|
||||
.iter()
|
||||
|
@ -205,33 +179,4 @@ mod merge_toml_tests {
|
|||
// We didn't change comment-token so it should be same
|
||||
assert_eq!(nix.get("comment-token").unwrap().as_str().unwrap(), "#");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn language_toml_nested_array_merges() {
|
||||
const USER: &str = r#"
|
||||
[[language]]
|
||||
name = "typescript"
|
||||
language-server = { command = "deno", args = ["lsp"] }
|
||||
"#;
|
||||
|
||||
let base: Value = toml::from_slice(include_bytes!("../../languages.toml"))
|
||||
.expect("Couldn't parse built-in languages config");
|
||||
let user: Value = toml::from_str(USER).unwrap();
|
||||
|
||||
let merged = merge_toml_values(base, user, true);
|
||||
let languages = merged.get("language").unwrap().as_array().unwrap();
|
||||
let ts = languages
|
||||
.iter()
|
||||
.find(|v| v.get("name").unwrap().as_str().unwrap() == "typescript")
|
||||
.unwrap();
|
||||
assert_eq!(
|
||||
ts.get("language-server")
|
||||
.unwrap()
|
||||
.get("args")
|
||||
.unwrap()
|
||||
.as_array()
|
||||
.unwrap(),
|
||||
&vec![Value::String("lsp".into())]
|
||||
)
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Add table
Reference in a new issue