Replace toml with toml_edit (#233)

Cargo.lock

@@ -131,7 +131,7 @@ dependencies = [
  "thiserror",
  "tinytemplate",
  "tokio",
- "toml",
+ "toml_edit",
  "url",
  "xz2",
  "zip",
@@ -223,6 +223,16 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "combine"
+version = "4.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2a604e93b79d1808327a6fca85a6f2d69de66461e7620f5a4cbf5fb4d1d7c948"
+dependencies = [
+ "bytes",
+ "memchr",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.9.3"
@@ -295,6 +305,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "either"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f107b87b6afc2a64fd13cac55fe06d6c8859f12d4b14cbcdd2c67d0976781be"
+
 [[package]]
 name = "embed-resource"
 version = "1.7.3"
@@ -724,6 +740,15 @@ version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "616cde7c720bb2bb5824a224687d8f77bfd38922027f01d825cd7453be5099fb"
 
+[[package]]
+name = "itertools"
+version = "0.10.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a9a9d19fa1e79b6215ff29b9d6880b706147f16e9b1dbb1e4e5947b5b02bc5e3"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.2"
@@ -1622,6 +1647,18 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "toml_edit"
+version = "0.14.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5376256e44f2443f8896ac012507c19a012df0fe8758b55246ae51a2279db51f"
+dependencies = [
+ "combine",
+ "indexmap",
+ "itertools",
+ "serde",
+]
+
 [[package]]
 name = "tower-service"
 version = "0.3.2"

Cargo.toml

@@ -47,7 +47,7 @@ tempfile = "3.3.0"
 thiserror = "1.0.31"
 tinytemplate = "1.2.1"
 tokio = { version = "1.20.0", features = ["rt-multi-thread", "process", "sync"], default-features = false }
-toml = "0.5.8"
+toml_edit = { version = "0.14.4", features = ["easy"] }
 url = "2.2.2"
 xz2 = "0.1.7"
 

src/metafiles/v1.rs

@@ -1,10 +1,9 @@
 use std::{
     collections::{BTreeMap, BTreeSet},
-    fs,
+    fs::File,
     io::{self, Seek},
     iter::IntoIterator,
     path::{Path, PathBuf},
-    str::FromStr,
 };
 
 use miette::Diagnostic;
@@ -31,12 +30,12 @@ impl CratesToml {
     pub fn load_from_reader<R: io::Read>(mut reader: R) -> Result<Self, CratesTomlParseError> {
         let mut vec = Vec::new();
         reader.read_to_end(&mut vec)?;
-        Ok(toml::from_slice(&vec)?)
+        Ok(toml_edit::easy::from_slice(&vec)?)
     }
 
     pub fn load_from_path(path: impl AsRef<Path>) -> Result<Self, CratesTomlParseError> {
-        let file = fs::read_to_string(path)?;
+        let file = File::open(path)?;
-        Self::from_str(&file)
+        Self::load_from_reader(file)
     }
 
     pub fn insert(&mut self, cvs: &CrateVersionSource, bins: BTreeSet<String>) {
@@ -48,12 +47,12 @@ impl CratesToml {
     }
 
     pub fn write_to_writer<W: io::Write>(&self, mut writer: W) -> Result<(), CratesTomlParseError> {
-        let data = toml::to_vec(&self)?;
+        let data = toml_edit::easy::to_vec(&self)?;
         writer.write_all(&data)?;
         Ok(())
     }
 
-    pub fn write_to_file(&self, file: &mut fs::File) -> Result<(), CratesTomlParseError> {
+    pub fn write_to_file(&self, file: &mut File) -> Result<(), CratesTomlParseError> {
         self.write_to_writer(&mut *file)?;
         let pos = file.stream_position()?;
         file.set_len(pos)?;
@@ -62,8 +61,8 @@ impl CratesToml {
     }
 
     pub fn write_to_path(&self, path: impl AsRef<Path>) -> Result<(), CratesTomlParseError> {
-        fs::write(path, &toml::to_vec(&self)?)?;
+        let mut file = File::create(path)?;
-        Ok(())
+        self.write_to_file(&mut file)
     }
 
     pub fn append_to_path<'a, Iter>(
@@ -94,23 +93,16 @@ impl CratesToml {
     }
 }
 
-impl FromStr for CratesToml {
-    type Err = CratesTomlParseError;
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        Ok(toml::from_str(s)?)
-    }
-}
-
 #[derive(Debug, Diagnostic, Error)]
 pub enum CratesTomlParseError {
     #[error(transparent)]
     Io(#[from] io::Error),
 
     #[error(transparent)]
-    TomlParse(#[from] toml::de::Error),
+    TomlParse(#[from] toml_edit::easy::de::Error),
 
     #[error(transparent)]
-    TomlWrite(#[from] toml::ser::Error),
+    TomlWrite(#[from] toml_edit::easy::ser::Error),
 
     #[error(transparent)]
     CvsParse(#[from] super::CvsParseError),