Code drill feature parity, downloading snippets from github

Phase 1 and 2. Phase 3 will allow custom github repo input.

src/generator/cache.rs

@@ -3,10 +3,12 @@ use std::fs;
 use std::io::Read;
 use std::path::PathBuf;
 
+#[allow(dead_code)]
 pub struct DiskCache {
     base_dir: PathBuf,
 }
 
+#[allow(dead_code)]
 impl DiskCache {
     pub fn new(subdir: &str) -> Option<Self> {
         let base = dirs::data_dir()?.join("keydr").join(subdir);
@@ -37,6 +39,7 @@ impl DiskCache {
     }
 }
 
+#[allow(dead_code)]
 #[cfg(feature = "network")]
 pub fn fetch_url(url: &str) -> Option<String> {
     let client = reqwest::blocking::Client::builder()
@@ -51,6 +54,7 @@ pub fn fetch_url(url: &str) -> Option<String> {
     }
 }
 
+#[allow(dead_code)]
 #[cfg(not(feature = "network"))]
 pub fn fetch_url(_url: &str) -> Option<String> {
     None

src/generator/github_code.rs

@@ -1,41 +0,0 @@
-use crate::engine::filter::CharFilter;
-use crate::generator::TextGenerator;
-
-#[allow(dead_code)]
-pub struct GitHubCodeGenerator {
-    cached_snippets: Vec<String>,
-    current_idx: usize,
-}
-
-impl GitHubCodeGenerator {
-    #[allow(dead_code)]
-    pub fn new() -> Self {
-        Self {
-            cached_snippets: Vec::new(),
-            current_idx: 0,
-        }
-    }
-}
-
-impl Default for GitHubCodeGenerator {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
-impl TextGenerator for GitHubCodeGenerator {
-    fn generate(
-        &mut self,
-        _filter: &CharFilter,
-        _focused: Option<char>,
-        _word_count: usize,
-    ) -> String {
-        if self.cached_snippets.is_empty() {
-            return "// GitHub code fetching not yet configured. Use settings to add a repository."
-                .to_string();
-        }
-        let snippet = self.cached_snippets[self.current_idx % self.cached_snippets.len()].clone();
-        self.current_idx += 1;
-        snippet
-    }
-}

src/generator/mod.rs

@@ -3,7 +3,6 @@ pub mod capitalize;
 pub mod code_patterns;
 pub mod code_syntax;
 pub mod dictionary;
-pub mod github_code;
 pub mod numbers;
 pub mod passage;
 pub mod phonetic;