feat(mm): Initial commit with a basic image viewer

src/main.rs

@@ -0,0 +1,39 @@
+mod cli;
+mod errors;
+use std::path::{Path, PathBuf};
+
+use errors::*;
+mod viewer;
+pub fn main() -> Result<()> {
+    let args = <cli::Cli as clap::Parser>::parse();
+    if let Some(shell) = args.completions {
+        cli::Cli::completions(shell);
+        return Ok(());
+    }
+    let files = walker(args.input);
+    if files.is_empty() {
+        return Err(Error).attach("No files found");
+    }
+    viewer::run(files);
+
+    Ok(())
+}
+
+// Returns all the children (if a dir) and sister (if an image) files of the input path
+fn walker(input: impl AsRef<Path>) -> Vec<PathBuf> {
+    let mut tb = ignore::types::TypesBuilder::new();
+    tb.add("image", "*.jpg").expect("Failed to add image type");
+    ignore::WalkBuilder::new(input)
+        .types(
+            tb.select("image")
+                .add_defaults()
+                .build()
+                .expect("Failed to build type finder"),
+        )
+        .sort_by_file_name(|a, b| a.cmp(b))
+        .build()
+        .filter_map(|e| e.ok())
+        .filter(|e| e.file_type().map_or(false, |ft| ft.is_file()))
+        .map(|e| e.path().to_path_buf())
+        .collect()
+}