diff options
Diffstat (limited to 'src/main.rs')
-rw-r--r-- | src/main.rs | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..ba54da8 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,72 @@ +use serde::{Deserialize, Serialize}; + +#[derive(Debug, Serialize, Deserialize)] +struct Specification { + benchmarks: Vec<Benchmark>, +} + +#[derive(Debug, Serialize, Deserialize)] +struct Benchmark { + benchmark: String, + backups: Vec<Backup>, +} + +#[derive(Debug, Serialize, Deserialize)] +struct Backup { + changes: Vec<Change>, +} + +#[derive(Debug, Serialize, Deserialize)] +enum Change { + Create(CreateFiles), + Delete(FileCount), + Rename(FileCount), +} + +#[derive(Debug, Serialize, Deserialize)] +struct CreateFiles { + files: u64, + #[serde(with = "file_size")] + file_size: u64, +} + +#[derive(Debug, Serialize, Deserialize)] +struct FileCount { + files: u64, +} + +fn main() { + let yaml = r#" +benchmarks: +- benchmark: foo + backups: [] +"#; + let spec: Specification = serde_yaml::from_str(yaml).unwrap(); + serde_json::to_writer(std::io::stdout(), &spec).unwrap(); + println!(); +} + +mod file_size { + use serde::{de::Error as _, Deserialize, Deserializer, Serialize, Serializer}; + + // This deserializer was originally written with u64 in mind. Then it was made generic by + // changing u64 to T everywhere and adding boundaries. Same with the serializer. + pub fn deserialize<'de, D, T>(deserializer: D) -> Result<T, D::Error> + where + D: Deserializer<'de>, + T: std::str::FromStr, + <T as std::str::FromStr>::Err: std::fmt::Display, + { + String::deserialize(deserializer)? + .parse::<T>() + .map_err(|e| D::Error::custom(format!("{}", e))) + } + + pub fn serialize<S, T>(value: &T, serializer: S) -> Result<S::Ok, S::Error> + where + S: Serializer, + T: std::fmt::Display, + { + format!("{}", value).serialize(serializer) + } +} |