nix-configs

commit fcf89d2e6c8622b06563db1f5679751698809f9d
parent e9afb953de18b6ff2be2ae85eb7435b2f1ea5ee9
Author: breadcat <breadcat@users.noreply.github.com>
Date:   Fri,  6 Feb 2026 22:07:12 +0000

First revision of audiobook script

Diffstat:
M
machines/atlas.nix
 | 
1
+
M
machines/ilias.nix
 | 
1
+
A
scripts/taudiobooker.nix
 | 
146
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

3 files changed, 148 insertions(+), 0 deletions(-)
diff --git a/machines/atlas.nix b/machines/atlas.nix
@@ -31,6 +31,7 @@ let machine = "atlas"; in {
     ../scripts/duupmove.nix
     ../scripts/restic.nix
     ../scripts/seedy.nix
+    ../scripts/taudiobooker.nix
     ../scripts/vidyascape.nix
     ../scripts/xdb.nix
   ];
diff --git a/machines/ilias.nix b/machines/ilias.nix
@@ -40,6 +40,7 @@ let machine = "ilias"; in {
     ../scripts/startpage-sort.nix
     ../scripts/tank-log.nix
     ../scripts/tank-sort.nix
+    ../scripts/taudiobooker.nix
     ../scripts/watchedlist.nix
     ../scripts/xdb.nix
     ../scripts/youtube-id-rss.nix
diff --git a/scripts/taudiobooker.nix b/scripts/taudiobooker.nix
@@ -0,0 +1,146 @@
+{ pkgs, ... }:
+
+{
+  environment.systemPackages = [
+    (pkgs.writeShellScriptBin "taudiobooker" ''
+		set -euo pipefail
+
+		# variables
+		codec="libopus"
+		bitrate="48k"
+		compression="10"
+		output=""
+
+		# functions
+		strip_chars() { awk '{gsub(/^[ \t-]+|[ \t-]+$/,""); print $0}'; }
+
+		process_opus_file() {
+			local file="$1"
+			output="$file"
+
+			echo "Tagging OPUS file: $file"
+
+			${pkgs.opustags}/bin/opustags -i -D "$output"
+			${pkgs.opustags}/bin/opustags -i -s "GENRE=Audiobook" "$output"
+
+			artist=$(printf "%s" "$output" |
+					 awk -F"-" '{print $1}' |
+					 strip_chars)
+
+			${pkgs.opustags}/bin/opustags -i -s "ARTIST=$artist" "$output"
+
+			if [[ "$output" == *"#"* ]]; then
+				# Series format
+				album=$(printf "%s" "$output" |
+						awk -F"-" '{print $2}' |
+						awk -F"#" '{print $1}' |
+						strip_chars)
+
+				track=$(printf "%s" "$output" |
+						awk -F"-" '{print $2}' |
+						awk -F"#" '{print $2}' |
+						awk '{gsub("^0*",""); print}' |
+						strip_chars)
+
+				title=$(printf "%s" "$output" |
+						awk -F"-" '{gsub(".opus",""); print $3}' |
+						strip_chars)
+
+				${pkgs.opustags}/bin/opustags -i -s "ALBUM=$album" "$output"
+				${pkgs.opustags}/bin/opustags -i -s "TRACKNUMBER=$track" "$output"
+				${pkgs.opustags}/bin/opustags -i -s "TITLE=$title" "$output"
+
+			else
+				# Single file
+				title=$(printf "%s" "$output" |
+						awk -F"-" '{gsub(".opus",""); print $2}' |
+						strip_chars)
+
+				${pkgs.opustags}/bin/opustags -i -s "TITLE=$title" "$output"
+			fi
+		}
+
+		process_other_file() {
+			local file="$1"
+			local base="''${file%.*}"
+			output="''${base}.opus"
+
+			echo "Encoding file to OPUS: $file → $output"
+
+			${pkgs.ffmpeg}/bin/ffmpeg -hide_banner -loglevel error -nostats \
+				-i "$file" \
+				-acodec "$codec" \
+				-ac 1 \
+				-b:a "$bitrate" \
+				-vbr on \
+				-compression_level "$compression" \
+				"$output"
+
+			echo "Done: $output"
+		}
+
+		analyze_directory() {
+			local dir="$1"
+			echo "Analyzing and concatenating directory: $dir"
+
+			# Find most common extension
+			local extension
+			extension=$(find "$dir" -type f -printf '%f\n' \
+				| sed -E 's/.*\.([^.]+)$/\1/' \
+				| sort | uniq -c | sort -nr | awk 'NR==1{print $2}')
+
+			if [[ -z "''${extension}" ]]; then
+				echo "No files found in directory."
+				exit 1
+			fi
+
+			echo "Most common filetype: .$extension"
+
+			# Output filename based on directory name
+			local name
+			name=$(basename "$dir")
+			output="''${name}.opus"
+
+			echo "Concatenating all .$extension files → $output"
+
+			${pkgs.ffmpeg}/bin/ffmpeg -f concat -safe 0 \
+				-i <(for f in "$dir"/*."$extension"; do
+						echo "file '$PWD/$f'"
+					  done) \
+				-acodec "$codec" \
+				-ac 1 \
+				-b:a "$bitrate" \
+				-vbr on \
+				-compression_level "$compression" \
+				"$output"
+
+			echo "Created: $output"
+		}
+
+		# main logic
+
+		if [[ $# -ne 1 ]]; then
+			echo "Usage: $0 <file-or-directory>"
+			exit 1
+		fi
+
+		input="$1"
+
+		if [[ -d "$input" ]]; then
+			analyze_directory "$input"
+		elif [[ -f "$input" ]]; then
+			ext="''${input##*.}"
+			shopt -s nocasematch
+			if [[ "$ext" == "opus" ]]; then
+				process_opus_file "$input"
+			else
+				process_other_file "$input"
+			fi
+			shopt -u nocasematch
+		else
+			echo "Error: '$input' is not a valid file or directory"
+			exit 1
+		fi
+    '')
+  ];
+}