Enable excludes (#18)

src/settings.rs

@@ -1,25 +1,34 @@
-use std::path::Path;
+use std::path::{Path, PathBuf};
 
 use anyhow::Result;
 
-use crate::pyproject::{load_config, Config};
+use crate::pyproject::load_config;
 
 pub struct Settings {
     pub line_length: usize,
+    pub exclude: Vec<PathBuf>,
 }
 
 static DEFAULT_MAX_LINE_LENGTH: usize = 88;
 
-impl From<Config> for Settings {
-    fn from(config: Config) -> Settings {
-        Settings {
-            line_length: config.line_length.unwrap_or(DEFAULT_MAX_LINE_LENGTH),
-        }
-    }
-}
-
 impl Settings {
     pub fn from_paths<'a>(paths: impl IntoIterator<Item = &'a Path>) -> Result<Self> {
-        load_config(paths).map(|config| config.into())
+        let (project_root, config) = load_config(paths)?;
+
+        Ok(Settings {
+            line_length: config.line_length.unwrap_or(DEFAULT_MAX_LINE_LENGTH),
+            exclude: config
+                .exclude
+                .unwrap_or_default()
+                .into_iter()
+                .map(|path| {
+                    if path.is_relative() {
+                        project_root.join(path)
+                    } else {
+                        path
+                    }
+                })
+                .collect(),
+        })
     }
 }