Merge pull request 'cache' (#3) from cache into master

Reviewed-on: http://raspberrypi.fritz.box:7920/fx/modlist/pulls/3

1 files changed, 37 insertions, 0 deletions

diff --git a/src/cache.rs b/src/cache.rs
new file mode 100644
index 0000000..11645d1
--- /dev/null
+++ b/src/cache.rs
@@ -0,0 +1,37 @@
+use std::{
+    collections::HashMap,
+    fs::{copy, read_dir},
+};
+
+/// .
+///
+/// # Panics
+///
+/// Panics if .
+pub fn get_cached_versions(path: &str) -> HashMap<String, String> {
+    let mut versions: HashMap<String, String> = HashMap::new();
+    for file in read_dir(path).unwrap() {
+        let path = file.unwrap().path();
+        if path.is_file() && path.extension().ok_or("BAH").unwrap() == "jar" {
+            let pathstr = path.to_str().ok_or("BAH").unwrap();
+            let namesplit: Vec<&str> = pathstr.split('.').collect();
+            versions.insert(
+                String::from(namesplit[namesplit.len() - 2]),
+                String::from(pathstr),
+            );
+        }
+    }
+    versions
+}
+
+/// .
+///
+/// # Panics
+///
+/// Panics if .
+pub fn copy_cached_version(version_path: &str, download_path: &str) {
+    let versplit: Vec<&str> = version_path.split('/').collect();
+    let download = format!("{}{}", download_path, versplit[versplit.len() - 1]);
+    // println!("{:#?}", download);
+    copy(version_path, download).unwrap();
+}