📦 Reduce select/2 to select/1 by usage of lazy_static

Cargo.toml

@@ -15,6 +15,7 @@ assert_cmd = "2.0.12"
 clap = {version = "3.2.25", features = ["derive"]}
 ctor = "0.1.26"
 k9 = "0.11.6"
+lazy_static = "1.5.0"
 nanoid = "0.4.0"
 path-slash = "0.1.5"
 regex = "1"

src/commanders/selector.rs

@@ -1,11 +1,19 @@
+use crate::cli::Cli;
 use crate::helpers::io_helper::path_bufs_to_sorted_strings;
 use crate::helpers::io_helper::read_dir;
 use crate::helpers::str_helper::gen_input_file_content_for_ffmpeg;
 use crate::helpers::vec_helper::filter_files;
+use clap::ArgMatches;
+use lazy_static::lazy_static;
 use std::path::{Path, PathBuf};
 
-pub fn select(target_dir: &Path, file_format: &str) -> (Vec<PathBuf>, Vec<String>, String) {
-    let all_files_on_target_dir = read_dir(target_dir).unwrap();
+lazy_static! {
+    static ref MATCHES: ArgMatches = Cli::init().get_matches();
+    static ref TARGET_DIR: &'static Path = Path::new(MATCHES.value_of("TARGET_DIR").unwrap());
+}
+
+pub fn select(file_format: &str) -> (Vec<PathBuf>, Vec<String>, String) {
+    let all_files_on_target_dir = read_dir(*TARGET_DIR).unwrap();
     let files_to_merge = filter_files(all_files_on_target_dir, file_format);
     let files_to_merge_as_strings = path_bufs_to_sorted_strings(&files_to_merge);
     let ffmpeg_input_content = gen_input_file_content_for_ffmpeg(&files_to_merge_as_strings);

src/main.rs

@@ -46,7 +46,7 @@ fn main() -> Result<(), Error> {
         remove_file(&ffmpeg_output_file)?;
 
         let (files_to_merge, mut files_to_merge_as_strings, mut ffmpeg_input_content) =
-            select(target_dir, &file_format);
+            select(&file_format);
 
         if !ffmpeg_input_content.is_empty() {
             if verbose {