24 lines
837 B
Rust
24 lines
837 B
Rust
use anyhow::{Context, Result};
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use serde::{de::DeserializeOwned, Serialize};
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use std::{fs, path::PathBuf};
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/// read data from yaml as struct T
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pub fn read_yaml<T: DeserializeOwned + Default>(path: PathBuf) -> T {
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let yaml_str = fs::read_to_string(path).unwrap_or("".into());
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serde_yaml::from_str::<T>(&yaml_str).unwrap_or(T::default())
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}
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/// save the data to the file
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/// can set `prefix` string to add some comments
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pub fn save_yaml<T: Serialize>(path: PathBuf, data: &T, prefix: Option<&str>) -> Result<()> {
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let data_str = serde_yaml::to_string(data)?;
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let yaml_str = match prefix {
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Some(prefix) => format!("{prefix}{data_str}"),
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None => data_str,
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};
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let path_str = path.as_os_str().to_string_lossy().to_string();
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fs::write(path, yaml_str.as_bytes()).context(format!("failed to save file \"{path_str}\""))
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}
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