Speed up brute force building with Prey.lock hashing and caching.

crates/core/src/class.rs

@@ -1,35 +1,49 @@
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 
+use java::{JAVA_EXT_CLASS, JAVA_EXT_SOURCE};
 use serde::{Deserialize, Serialize};
 
+use crate::{Error, Result};
+
 /// Data struct
 #[derive(Debug, Clone, Deserialize, Serialize, Hash, PartialEq, Eq, PartialOrd, Ord)]
 pub struct Class {
+    /// Path relative to PACKAGE/java, without file extension.
     pub path: PathBuf,
     pub checksum: String,
 }
 
 impl Class {
-    pub fn is_updated(&self) -> crate::Result<bool> {
-        // If the path is local and that file has not been updated.
-        Ok(self.checksum == sha256::try_digest(self.path.clone())?)
+    pub fn new<P: AsRef<Path>>(package_src_root: P, file_path: P) -> Result<Self> {
+        let mut file_path = file_path.as_ref().to_path_buf();
+        if file_path.is_absolute() {
+            file_path = pathsub::sub_paths(file_path.as_path(), package_src_root.as_ref())
+                .ok_or(Error::MismatchedPackage)?;
+        }
+
+        Ok(Self {
+            path: dbg!(file_path.with_extension("")),
+            checksum: sha256::try_digest(package_src_root.as_ref().join(file_path))?,
+        })
     }
 
-    pub fn update(&mut self) -> crate::Result<()> {
-        self.checksum = sha256::try_digest(self.path.clone())?;
+    pub fn is_updated<P: AsRef<Path>>(&self, class_path: P) -> Result<bool> {
+        // If the path is local and that file has not been updated.
+        Ok(class_path
+            .as_ref()
+            .join(self.path.as_path())
+            .with_extension(JAVA_EXT_CLASS)
+            .exists()
+            && self.checksum == sha256::try_digest(self.path.clone())?)
+    }
+
+    pub fn update<P: AsRef<Path>>(&mut self, package_src_root: P) -> Result<()> {
+        self.checksum = sha256::try_digest(dbg!(
+            package_src_root
+                .as_ref()
+                .join(self.path.as_path())
+                .with_extension(JAVA_EXT_SOURCE),
+        ))?;
         Ok(())
     }
 }
-
-// TODO: Make it clearer that this is for general files,
-// not nests.
-impl TryFrom<PathBuf> for Class {
-    type Error = crate::Error;
-
-    fn try_from(value: PathBuf) -> Result<Self, Self::Error> {
-        Ok(Self {
-            path: value.clone(),
-            checksum: sha256::try_digest(value)?,
-        })
-    }
-}