diskplan_config/
file.rs

1use std::collections::HashMap;
2
3use anyhow::{Context, Result};
4use camino::{Utf8Path, Utf8PathBuf};
5use serde::Deserialize;
6
7use crate::Root;
8
9/// Deserialization of diskplan.toml
10#[derive(Deserialize, Default, Debug, Clone, PartialEq, Eq)]
11pub struct ConfigFile {
12    /// A map of unique names to individual stem configurations
13    pub stems: HashMap<String, ConfigStem>,
14
15    /// Schema directory (defaults to directory containing config)
16    pub schema_directory: Option<Utf8PathBuf>,
17}
18
19#[derive(Deserialize, Debug, Clone, PartialEq, Eq, Hash)]
20#[serde(try_from = "Utf8PathBuf")]
21struct _Root(Root);
22
23impl TryFrom<Utf8PathBuf> for _Root {
24    type Error = <Root as TryFrom<Utf8PathBuf>>::Error;
25    fn try_from(value: Utf8PathBuf) -> std::result::Result<Self, Self::Error> {
26        Root::try_from(value).map(_Root)
27    }
28}
29
30/// Configuration for a single stem within diskplan.toml
31#[derive(Deserialize, Debug, Clone, PartialEq, Eq)]
32pub struct ConfigStem {
33    root: _Root,
34    schema: Utf8PathBuf,
35}
36
37impl ConfigStem {
38    /// The absolute root directory on which to apply changes
39    pub fn root(&self) -> &Root {
40        &self.root.0
41    }
42
43    /// The path to a schema definition file that describes how files and directories under the
44    /// root should be structured (may be absolute or relative to the config file's directory)
45    pub fn schema(&self) -> &Utf8Path {
46        &self.schema
47    }
48}
49
50impl ConfigFile {
51    /// Load a configuration from the specified file
52    ///
53    pub fn load(path: impl AsRef<Utf8Path>) -> Result<Self> {
54        let path = path.as_ref();
55        let config_context = || format!("Reading config file {path:?}");
56        let config_data = std::fs::read_to_string(path).with_context(config_context)?;
57        config_data.as_str().try_into()
58    }
59}
60
61impl TryFrom<&str> for ConfigFile {
62    type Error = anyhow::Error;
63
64    fn try_from(value: &str) -> Result<Self, Self::Error> {
65        Ok(toml::from_str(value)?)
66    }
67}
diskplan_config/file.rs

diskplan_config/
file.rs
