switch to simpler single threaded tokio runtime

Less dependencies, yay

Cargo.lock

@@ -415,12 +415,6 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
-[[package]]
-name = "hermit-abi"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
-
 [[package]]
 name = "home"
 version = "0.5.9"
@@ -739,16 +733,6 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "643cb0b8d4fcc284004d5fd0d67ccf61dfffadb7f75e1e71bc420f4688a3a704"
 
-[[package]]
-name = "lock_api"
-version = "0.4.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
 [[package]]
 name = "log"
 version = "0.4.21"
@@ -830,16 +814,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "num_cpus"
-version = "1.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
-dependencies = [
- "hermit-abi",
- "libc",
-]
-
 [[package]]
 name = "objc-sys"
 version = "0.3.5"
@@ -933,29 +907,6 @@ dependencies = [
  "vcpkg",
 ]
 
-[[package]]
-name = "parking_lot"
-version = "0.12.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
-dependencies = [
- "lock_api",
- "parking_lot_core",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.9.10"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "smallvec",
- "windows-targets 0.52.5",
-]
-
 [[package]]
 name = "percent-encoding"
 version = "2.3.1"
@@ -1018,15 +969,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c82cf8cff14456045f55ec4241383baeff27af886adb72ffb2162f99911de0fd"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "reqwest"
 version = "0.12.4"
@@ -1191,12 +1133,6 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
-[[package]]
-name = "scopeguard"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
-
 [[package]]
 name = "security-framework"
 version = "2.11.0"
@@ -1274,15 +1210,6 @@ dependencies = [
  "digest",
 ]
 
-[[package]]
-name = "signal-hook-registry"
-version = "1.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "slab"
 version = "0.4.9"
@@ -1426,26 +1353,11 @@ dependencies = [
  "bytes",
  "libc",
  "mio",
- "num_cpus",
- "parking_lot",
  "pin-project-lite",
- "signal-hook-registry",
  "socket2",
- "tokio-macros",
  "windows-sys 0.48.0",
 ]
 
-[[package]]
-name = "tokio-macros"
-version = "2.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "tokio-native-tls"
 version = "0.3.1"

Cargo.toml

@@ -8,7 +8,7 @@ edition = "2021"
 [dependencies]
 
 rspotify = { version = "0.13", features = ["cli"] }
-tokio = { version = "1.38", features = ["full"] }
+tokio = { version = "1.38", features = ["rt"] }
 
 futures = "*"
 futures-util = "*"

src/main.rs

@@ -5,8 +5,7 @@ use rspotify::{prelude::*, scopes, AuthCodeSpotify, Credentials, OAuth};
 const SPOTIFY_WEB_API_ADD_PLAYLIST_MAX_ID_NUM: usize = 100;
 const SPOTIFY_WEB_API_TRACK_FEATURES_MAX_ID_NUM: usize = 100;
 
-#[tokio::main]
-async fn main() {
+async fn build_new_playlist() {
     let args: Vec<String> = std::env::args().collect();
     if args.len() != 4 {
         eprintln!("usage: {} PLAYLIST_TITLE MIN_TEMPO MAX_TEMPO", args[0]);
@@ -90,3 +89,13 @@ async fn main() {
             .unwrap();
     }
 }
+
+fn main() {
+    tokio::runtime::Builder::new_current_thread()
+        .enable_all()
+        .build()
+        .unwrap()
+        .block_on({
+            build_new_playlist()
+        })
+}