Add support for a very basic randomize.

Cargo.toml

@@ -3,7 +3,9 @@ name = "record_watch"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[[bin]]
+name = "rw"
+path = "src/main.rs"
 
 [dependencies]
 walkdir = "2.3.2"
@@ -13,3 +15,5 @@ dirs = "4.0.0"
 serde_json = "1.0.79"
 serde = { version = "1.0.136", features= ["derive"] }
 bytes = "1.1.0"
+rand = "0.8.5"
+

src/main.rs

@@ -7,13 +7,24 @@ use walkdir::DirEntry;
 use walkdir::WalkDir;
 mod mpvctl;
 use crate::mpvctl::MpvCtl;
+use rand::seq::SliceRandom;
+use rand::thread_rng;
 use tokio::time::{sleep, Duration};
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    let mut args = env::args();
+    let mut args = env::args().peekable();
     let _program = args.next().expect("argv[0] should be this program?");
+    let randomize: bool = match args.peek() {
+        Some(flag) if flag == "-r" => {
+            // Consume the flag
+            args.next().expect("We already know this arg exists");
+            true
+        }
+        _ => false,
+    };
     let profile = args.next().expect("Must provide a profile");
+
     let directories: Vec<String> = args.collect();
 
     let mut files: Vec<DirEntry> = Vec::new();
@@ -58,6 +69,9 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     let mut mpvctl = MpvCtl::connect("/tmp/recordwatchsocket").await?;
     let mut end_file_listener = mpvctl.listen(&["end-file"])?;
+    if randomize {
+        files.shuffle(&mut thread_rng());
+    }
     for f in files {
         let canonicalized_path = f.path().canonicalize()?;
         let already_watched_count: i64 = sqlx::query(r#"SELECT count(*) FROM watched WHERE path = ? AND profile = (SELECT id FROM PROFILE WHERE name = ?)"#)