Initial commit

README.md

@@ -1,2 +1,27 @@
 # flac2pod
 Seamlessly converts your existing FLAC library to be played on an iPod Classic.
+
+This script makes use of ffmpeg to convert your existing FLAC music library to either MP3-320 or ALAC for easy iPod Classic use. It also takes advantage of "rg2sc" (https://github.com/rwinkhart/rg2sc) to convert any existing ReplayGain tags to Apple Sound Check tags that are compatible with Apple products.
+
+# Usage
+
+```
+flac2pod -f --mp3  # will convert library to MP3-320 and forcefully update Sound Check tags (even if they already exist)
+
+flac2pod --alac  # will convert library to ALAC in a .m4a container - only updates missing Sound Check tags
+
+flac2pod  # will convert library to MP3-320 - only updates missing Sound Check tags
+```
+
+In order for flac2pod to function, your library must be structured as follows:
+Library dir -> Artist dir -> Album dir -> FLAC files
+
+When prompted for the source directory, you want to input your library parent directory.
+
+# Installation
+
+flac2pod is available in the AUR as "flac2pod". If installing on a non-Arch-based distribution, follow the manual installation instructions:
+
+- copy the flac2pod executable from https://github.com/rwinkhart/flac2pod/blob/master/bin/flac2pod to your /usr/bin/
+- copy the rg2sc executable from https://github.com/rwinkhart/rg2sc/blob/master/bin/rg2sc to your /usr/bin
+- install python-mutagen, ffmpeg, and lame

bin/flac2pod

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+#!/bin/python3
+
+# external modules
+
+from os import path, system, walk
+from pathlib import Path
+from sys import argv
+
+
+# utility functions
+
+def scan_source():
+    _artist_dirs, _album_dirs, _full_paths = [], [], []
+    for _root, _directories, _files in walk(path.expanduser(source)):
+        for _dir in sorted(_directories):
+            if not _root.endswith(path.expanduser(source)):
+                _artist_dirs.append(_root)
+    _artist_dirs = list(set(_artist_dirs))
+    for _artist in sorted(_artist_dirs):
+        for _root, _directories, _files in walk(path.expanduser(_artist)):
+            if not _root.endswith(path.expanduser(_artist)):
+                _album_dirs.append(_root)
+    _album_dirs = list(set(_album_dirs))
+    for _album in sorted(_album_dirs):
+        for _root, _directories, _files in walk(path.expanduser(_album)):
+            for _filename in _files:
+                if _filename.endswith('.flac'):
+                    _full_paths.append(f"{_album}/{_filename[:-5]}")
+    return _album_dirs, _full_paths
+
+
+def create_destination():
+    for _dir in source_directories[0]:
+        Path(path.expanduser(_dir.replace(path.expanduser(source), path.expanduser(destination))))\
+            .mkdir(0o700, parents=True, exist_ok=True)
+
+
+def scan_destination_convert_alac():
+    for _file in source_directories[1]:
+        if not Path(f"{_file.replace(path.expanduser(source), path.expanduser(destination))}.m4a").is_file():
+            system(f"ffmpeg -i '{_file}.flac' -c:v copy -c:a alac -map_metadata 0 -id3v2_version 3 "
+                   f"'{_file.replace(path.expanduser(source), path.expanduser(destination))}.m4a'")
+
+
+def scan_destination_convert_mp3():
+    for _file in source_directories[1]:
+        print(_file)
+        if not Path(f"{_file.replace(path.expanduser(source), path.expanduser(destination))}.mp3").is_file():
+            system(f"ffmpeg -i '{_file}.flac' -c:v copy -ab 320k -map_metadata 0 -id3v2_version 3 "
+                   f"'{_file.replace(path.expanduser(source), path.expanduser(destination))}.mp3'")
+
+
+def rg2sc():
+    if argument.__contains__('-f'):
+        system(f"{rg2sc} -f {destination}")
+    else:
+        system(f"{rg2sc} {destination}")
+
+
+# program start sequence
+
+# retrieve typed argument
+argument_list = argv
+i, argument = 0, ''
+for _ in argument_list:
+    while i < len(argument_list) - 1:
+        i += 1
+        argument += argument_list[i] + ' '
+argument = argument[:-1]
+
+source = input('Source parent directory: ')
+if source.endswith('/'):
+    source = source[:-1]
+destination = input('Destination parent directory: ')
+if destination.endswith('/'):
+    destination = destination[:-1]
+
+source_directories = scan_source()
+create_destination()
+if argument.__contains__('--alac'):
+    scan_destination_convert_alac()
+else:
+    scan_destination_convert_mp3()
+    rg2sc()

package.sh

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+#!/bin/bash
+
+# This script packages flac2pod (from source) for Arch Linux.
+
+echo -e '\n\nThe value entered in this field will only affect the version reported to the package manager. The latest source is used regardless.\n'
+read -r -p "Version number: " version
+read -r -p "Revision number: " revision
+
+echo -e '\nOptions (please enter the number only):'
+echo -e '\n1. GitHub Release Tag\n2. Local\n'
+read -r -p "Source (for build scripts): " source
+
+if [ "$source" == "1" ]; then
+    source='https://github.com/rwinkhart/flac2pod/releases/download/v$pkgver/flac2pod-$pkgver.tar.xz'
+else
+    source=local://flac2pod-"$version".tar.xz
+fi
+
+
+# Archive creation
+echo -e '\nPackaging as generic...\n'
+mkdir -p packages/archtemp/usr
+cp -r bin packages/archtemp/usr/
+cp -r share packages/archtemp/usr/
+tar -C packages/archtemp -cvf packages/flac2pod-"$version".tar.xz usr/
+rm -rf packages/archtemp
+sha512="$(sha512sum packages/flac2pod-"$version".tar.xz | awk '{print $1;}')"
+echo -e "\nsha512 sum:\n$sha512"
+echo -e "\nGeneric packaging complete.\n"
+
+# PKGBUILD creation
+echo -e '\nGenerating PKGBUILD...'
+echo "# Maintainer: Randall Winkhart <idgr at tutanota dot com>
+
+pkgname=flac2pod
+pkgver="$version"
+pkgrel="$revision"
+pkgdesc='Converts your FLAC library to be iPod-ready'
+url='https://github.com/rwinkhart/flac2pod'
+arch=('any')
+license=('GPL2')
+depends=(python ffmpeg lame rg2sc)
+
+source=(\""$source"\")
+sha512sums=('"$sha512"')
+
+package() {
+
+    tar xf flac2pod-"\"\$pkgver\"".tar.xz -C "\"\${pkgdir}\""
+
+}
+" > packages/PKGBUILD
+    echo -e "\nPKGBUILD generated.\n"

share/licenses/flac2pod/license

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+    flac2pod is a FOSS audio transcoding script for preparing music for an Apple iPod.
+    Copyright (C) 2022  Randall Winkhart  idgr@tutanota.com
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.