add feature for toggling replaygain support

Cargo.toml

@@ -52,6 +52,7 @@ notify = "6"
 
 [features]
 default = [
+  "replaygain",
   "mp3_extractor",
   "flac_extractor",
   "taglib_extractor",
@@ -66,3 +67,5 @@ mp3_extractor = ["dep:id3"]
 ffprobe_extractor = [] # If to allow using ffmpeg/ffprobe as a fallback tag extractor
 
 command_genhtml = ["dep:html-escape", "dep:urlencoding"]
+
+replaygain = []

src/commands/process.rs

@@ -7,6 +7,7 @@ use crate::types::AudioFileInfo;
 use crate::types::File;
 use crate::utils::ascii_reduce::reduce_to_ascii;
 use crate::utils::formats::get_format_handler;
+#[cfg(feature = "replaygain")]
 use crate::utils::replaygain::analyze_replaygain;
 use crate::utils::scan_for_music;
 
@@ -15,10 +16,13 @@ pub struct ProcessCommandArgs {
 	pub source: String,
 	#[clap(long)]
 	pub dry_run: bool,
+	#[cfg(feature = "replaygain")]
 	#[clap(long)]
 	pub skip_replaygain: bool,
+	#[cfg(feature = "replaygain")]
 	#[clap(long)]
 	pub force_replaygain: bool,
+	#[cfg(feature = "replaygain")]
 	#[clap(long)]
 	pub replaygain_threads: Option<u32>,
 	#[clap(long)]
@@ -112,6 +116,7 @@ fn rename_file(process_args: &ProcessCommandArgs, file: &mut File) {
 	}
 }
 
+#[cfg(feature = "replaygain")]
 pub fn add_replaygain_tags(file: &File, force: bool) -> Result<(), Box<dyn std::error::Error>> {
 	if !file.info.supports_replaygain {
 		println!(
@@ -211,6 +216,7 @@ pub fn process_command(
 		rename_file(process_args, file);
 	}
 	
+	#[cfg(feature = "replaygain")]
 	if !process_args.skip_replaygain && !process_args.dry_run {
 		println!("Adding ReplayGain Tags to Files");
 

src/utils/mod.rs

@@ -1,6 +1,7 @@
 pub mod ascii_reduce;
 pub mod ffprobe;
 pub mod format_detection;
+#[cfg(feature = "replaygain")]
 pub mod replaygain;
 pub mod transcoder;