init

1 files changed, 44 insertions, 0 deletions

diff --git a/src/config.rs b/src/config.rs
new file mode 100644
index 0000000..6fd790a
--- /dev/null
+++ b/src/config.rs
@@ -0,0 +1,44 @@
+use std::env;
+use std::path::PathBuf;
+use serde::Deserialize;
+
+#[derive(Deserialize, Debug)]
+pub struct Config {
+    #[serde(default = "default_dots_dir")]
+    pub dots_dir: PathBuf,
+    #[serde(rename = "dot")]
+    pub dots: Vec<Dot>,
+}
+
+#[derive(Deserialize, Debug)]
+pub struct Dot {
+    #[serde(rename = "src")]
+    pub source: PathBuf,
+    #[serde(rename = "dest")]
+    pub destination: PathBuf,
+}
+
+pub enum ConfigLoadError {
+    IOError(std::io::Error),
+    DeserializationError(toml::de::Error),
+}
+
+impl Config {
+    pub fn load(from: Option<PathBuf>) -> Result<Config, ConfigLoadError> {
+        let path = from.unwrap_or(PathBuf::from("dots.toml"));
+        match std::fs::read_to_string(path).map_err(ConfigLoadError::IOError) {
+            Ok(string) => match toml::from_str(&string) {
+                Ok(config) => Ok(config),
+                Err(err) => Err(ConfigLoadError::DeserializationError(err)),
+            }
+            Err(e) => {
+                Err(e)
+            }
+        }
+    }
+}
+
+fn default_dots_dir() -> PathBuf {
+    env::current_dir().expect("failed to get current dir")
+}
+