diff options
Diffstat (limited to 'src/bindgen/cargo/cargo_toml.rs')
-rw-r--r-- | src/bindgen/cargo/cargo_toml.rs | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/bindgen/cargo/cargo_toml.rs b/src/bindgen/cargo/cargo_toml.rs new file mode 100644 index 0000000..998176e --- /dev/null +++ b/src/bindgen/cargo/cargo_toml.rs @@ -0,0 +1,67 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +use std::error; +use std::fmt; +use std::fs::File; +use std::io; +use std::io::Read; +use std::path::Path; + +#[derive(Debug)] +/// Possible errors that can occur during Cargo.toml parsing. +pub enum Error { + /// Error during reading of Cargo.toml + Io(io::Error), + /// Deserialization error + Toml(toml::de::Error), +} + +impl From<io::Error> for Error { + fn from(err: io::Error) -> Self { + Error::Io(err) + } +} +impl From<toml::de::Error> for Error { + fn from(err: toml::de::Error) -> Self { + Error::Toml(err) + } +} + +impl fmt::Display for Error { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + match self { + Error::Io(ref err) => err.fmt(f), + Error::Toml(ref err) => err.fmt(f), + } + } +} + +impl error::Error for Error { + fn source(&self) -> Option<&(dyn error::Error + 'static)> { + match self { + Error::Io(ref err) => Some(err), + Error::Toml(ref err) => Some(err), + } + } +} + +#[derive(Clone, Deserialize, Debug)] +pub struct Manifest { + pub package: Package, +} + +#[derive(Clone, Deserialize, Debug)] +pub struct Package { + pub name: String, +} + +/// Parse the Cargo.toml for a given path +pub fn manifest(manifest_path: &Path) -> Result<Manifest, Error> { + let mut s = String::new(); + let mut f = File::open(manifest_path)?; + f.read_to_string(&mut s)?; + + toml::from_str::<Manifest>(&s).map_err(|x| x.into()) +} |