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Add no-clobber option to CLI

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So the user can abort if the target directory would be overwritten.

Pork:  Remove trailing whitespace
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Benjamin Porter 2019-10-01 13:17:18 -06:00
parent 7d7dd0f91c
commit 7b77b944cf
2 changed files with 53 additions and 46 deletions
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96
AAXtoMP3
View File

@ -5,7 +5,7 @@
# Command Line Options # Command Line Options
# Usage Synopsis. # Usage Synopsis.
usage=$'\nUsage: AAXtoMP3 [--flac] [--aac] [--opus ] [--single] [--chaptered]\n[-e:mp3] [-e:m4a] [-e:m4b] [--authcode <AUTHCODE>]\n[--target_dir <PATH>] [--complete_dir <PATH>] [--validate]\n{FILES}\n' usage=$'\nUsage: AAXtoMP3 [--flac] [--aac] [--opus ] [--single] [--chaptered]\n[-e:mp3] [-e:m4a] [-e:m4b] [--authcode <AUTHCODE>] [--no-clobber]\n[--target_dir <PATH>] [--complete_dir <PATH>] [--validate]\n{FILES}\n'
codec=libmp3lame # Default encoder. codec=libmp3lame # Default encoder.
extension=mp3 # Default encoder extention. extension=mp3 # Default encoder extention.
mode=chaptered # Multi file output mode=chaptered # Multi file output
@ -22,15 +22,15 @@ DEBUG=0 # Default off, If set extremely verbose output.
# #
# Process the command line options. This allows for un-ordered options. Sorta like a getops style # Process the command line options. This allows for un-ordered options. Sorta like a getops style
while true; do while true; do
case "$1" in case "$1" in
# Flac encoding # Flac encoding
-f | --flac ) codec=flac; extension=flac; mode=single; container=flac; shift ;; -f | --flac ) codec=flac; extension=flac; mode=single; container=flac; shift ;;
# Apple m4a music format. # Apple m4a music format.
-a | --aac ) codec=copy; extension=m4a; mode=single; container=m4a; shift ;; -a | --aac ) codec=copy; extension=m4a; mode=single; container=m4a; shift ;;
# Ogg Format # Ogg Format
-o | --opus ) codec=libopus; extension=ogg; container=flac; shift ;; -o | --opus ) codec=libopus; extension=ogg; container=flac; shift ;;
# If appropriate use only a single file output. # If appropriate use only a single file output.
-s | --single ) mode=single; shift ;; -s | --single ) mode=single; shift ;;
# If appropriate use only a single file output. # If appropriate use only a single file output.
-c | --chaptered ) mode=chaptered; shift ;; -c | --chaptered ) mode=chaptered; shift ;;
# This is the same as --single option. # This is the same as --single option.
@ -40,21 +40,23 @@ while true; do
# Similiar to --aac but specific to audio books # Similiar to --aac but specific to audio books
-e:m4b ) codec=copy; extension=m4b; mode=single; container=mp4; shift ;; -e:m4b ) codec=copy; extension=m4b; mode=single; container=mp4; shift ;;
# Change the working dir from AAX directory to what you choose. # Change the working dir from AAX directory to what you choose.
-t | --target_dir ) targetdir="$2"; shift 2 ;; -t | --target_dir ) targetdir="$2"; shift 2 ;;
# Move the AAX file to a new directory when decoding is complete. # Move the AAX file to a new directory when decoding is complete.
-C | --complete_dir ) completedir="$2"; shift 2 ;; -C | --complete_dir ) completedir="$2"; shift 2 ;;
# Authorization code associate with the AAX file(s) # Authorization code associate with the AAX file(s)
-A | --authcode ) auth_code="$2"; shift 2 ;; -A | --authcode ) auth_code="$2"; shift 2 ;;
# Don't overwrite the target directory if it already exists
-n | --no-clobber ) noclobber=1; shift ;;
# Extremely verbose output. # Extremely verbose output.
-d | --debug ) DEBUG=1; shift ;; -d | --debug ) DEBUG=1; shift ;;
# Validate ONLY the aax file(s) No transcoding occurs # Validate ONLY the aax file(s) No transcoding occurs
-V | --validate ) VALIDATE=1; shift ;; -V | --validate ) VALIDATE=1; shift ;;
# Command synopsis. # Command synopsis.
-h | --help ) printf "$usage" $0 ; exit ;; -h | --help ) printf "$usage" $0 ; exit ;;
# Standard flag signifying the end of command line processing. # Standard flag signifying the end of command line processing.
-- ) shift; break ;; -- ) shift; break ;;
# Anything else stops command line processing. # Anything else stops command line processing.
* ) break ;; * ) break ;;
esac esac
done done
@ -105,13 +107,13 @@ debug_vars() {
l=0 l=0
for (( n=0; n<${#args[@]}; n++ )) ; do for (( n=0; n<${#args[@]}; n++ )) ; do
(( "${#args[$n]}" > "$l" )) && l=${#args[$n]} (( "${#args[$n]}" > "$l" )) && l=${#args[$n]}
done done
# Print the Debug Message # Print the Debug Message
echo "$(date "+%F %T%z") DEBUG ${msg}" echo "$(date "+%F %T%z") DEBUG ${msg}"
echo "=Start==========================================================================" echo "=Start=========================================================================="
# Using the max length of a var name we dynamically create the format. # Using the max length of a var name we dynamically create the format.
fmt="%-"${l}"s = %s\n" fmt="%-"${l}"s = %s\n"
for (( n=0; n<${#args[@]}; n++ )) ; do for (( n=0; n<${#args[@]}; n++ )) ; do
@ -121,7 +123,7 @@ debug_vars() {
done done
echo "=End============================================================================" echo "=End============================================================================"
fi fi
} }
# ----- # -----
# log # log
@ -161,24 +163,24 @@ fi
if [[ "x$(type -P ffmpeg)" == "x" ]]; then if [[ "x$(type -P ffmpeg)" == "x" ]]; then
echo "ERROR ffmpeg was not found on your env PATH variable" echo "ERROR ffmpeg was not found on your env PATH variable"
echo "Without it, this script will break." echo "Without it, this script will break."
echo "INSTALL:" echo "INSTALL:"
echo "MacOS: brew install ffmpeg" echo "MacOS: brew install ffmpeg"
echo "Ubuntu: sudo apt-get update; sudo apt-get install ffmpeg libav-tools x264 x265 bc" echo "Ubuntu: sudo apt-get update; sudo apt-get install ffmpeg libav-tools x264 x265 bc"
echo "RHEL: yum install ffmpeg" echo "RHEL: yum install ffmpeg"
exit 1 exit 1
fi fi
# ----- # -----
# Detect ffmpeg and ffprobe # Detect ffmpeg and ffprobe
if [[ "x$(type -P ffprobe)" == "x" ]]; then if [[ "x$(type -P ffprobe)" == "x" ]]; then
echo "ERROR ffprobe was not found on your env PATH variable" echo "ERROR ffprobe was not found on your env PATH variable"
echo "Without it, this script will break." echo "Without it, this script will break."
echo "INSTALL:" echo "INSTALL:"
echo "MacOS: brew install ffmpeg" echo "MacOS: brew install ffmpeg"
echo "Ubuntu: sudo apt-get update; sudo apt-get install ffmpeg libav-tools x264 x265 bc" echo "Ubuntu: sudo apt-get update; sudo apt-get install ffmpeg libav-tools x264 x265 bc"
echo "RHEL: yum install ffmpeg" echo "RHEL: yum install ffmpeg"
exit 1 exit 1
fi fi
# ----- # -----
@ -188,7 +190,7 @@ if [[ "x${container}" == "xmp4" && "x$(type -P mp4art)" == "x" ]]; then
echo "Without it, this script will not be able to add cover art to" echo "Without it, this script will not be able to add cover art to"
echo "m4b files. Note if there are no other errors the AAXtoMP3 will" echo "m4b files. Note if there are no other errors the AAXtoMP3 will"
echo "continue. However no cover art will be added to the output." echo "continue. However no cover art will be added to the output."
echo "INSTALL:" echo "INSTALL:"
echo "MacOS: brew install mp4v2" echo "MacOS: brew install mp4v2"
echo "Ubuntu: sudo apt-get install mp4v2-utils" echo "Ubuntu: sudo apt-get install mp4v2-utils"
fi fi
@ -200,7 +202,7 @@ if [[ "x${container}" == "xmp4" && "x$(type -P mp4chaps)" == "x" ]]; then
echo "Without it, this script will not be able to add chapters to" echo "Without it, this script will not be able to add chapters to"
echo "m4a/b files. Note if there are no other errors the AAXtoMP3 will" echo "m4a/b files. Note if there are no other errors the AAXtoMP3 will"
echo "continue. However no chapter data will be added to the output." echo "continue. However no chapter data will be added to the output."
echo "INSTALL:" echo "INSTALL:"
echo "MacOS: brew install mp4v2" echo "MacOS: brew install mp4v2"
echo "Ubuntu: sudo apt-get install mp4v2-utils" echo "Ubuntu: sudo apt-get install mp4v2-utils"
fi fi
@ -220,26 +222,26 @@ fi
if [ -z $auth_code ]; then if [ -z $auth_code ]; then
echo "ERROR Missing authcode" echo "ERROR Missing authcode"
echo "$usage" echo "$usage"
exit 1 exit 1
fi fi
# ----- # -----
# Check the target dir for if set if it is writable # Check the target dir for if set if it is writable
if [[ "x${targetdir}" != "x" ]]; then if [[ "x${targetdir}" != "x" ]]; then
if [[ ! -w "${targetdir}" || ! -d "${targetdir}" ]] ; then if [[ ! -w "${targetdir}" || ! -d "${targetdir}" ]] ; then
echo "ERROR Target Directory does not exist or is not writable: \"$targetdir\"" echo "ERROR Target Directory does not exist or is not writable: \"$targetdir\""
echo "$usage" echo "$usage"
exit 1 exit 1
fi fi
fi fi
# ----- # -----
# Check the target dir for if set if it is writable # Check the completed dir for if set if it is writable
if [[ "x${completedir}" != "x" ]]; then if [[ "x${completedir}" != "x" ]]; then
if [[ ! -w "${completedir}" || ! -d "${completedir}" ]] ; then if [[ ! -w "${completedir}" || ! -d "${completedir}" ]] ; then
echo "ERROR Complete Directory does not exist or is not writable: \"$completedir\"" echo "ERROR Complete Directory does not exist or is not writable: \"$completedir\""
echo "$usage" echo "$usage"
exit 1 exit 1
fi fi
fi fi
@ -248,7 +250,7 @@ fi
trap 'rm -r -f "${working_directory}"' EXIT trap 'rm -r -f "${working_directory}"' EXIT
# ----- # -----
# Set up some basic working files ASAP. Note the trap will clean this up no matter what. # Set up some basic working files ASAP. Note the trap will clean this up no matter what.
working_directory=`mktemp -d 2>/dev/null || mktemp -d -t 'mytmpdir'` working_directory=`mktemp -d 2>/dev/null || mktemp -d -t 'mytmpdir'`
metadata_file="${working_directory}/metadata.txt" metadata_file="${working_directory}/metadata.txt"
@ -257,7 +259,7 @@ metadata_file="${working_directory}/metadata.txt"
validate_aax() { validate_aax() {
local media_file local media_file
media_file="$1" media_file="$1"
# Test for existance # Test for existance
if [[ ! -r "${media_file}" ]] ; then if [[ ! -r "${media_file}" ]] ; then
log "ERROR File NOT Found: ${media_file}" log "ERROR File NOT Found: ${media_file}"
@ -275,20 +277,20 @@ validate_aax() {
output="$(ffprobe -loglevel warning -activation_bytes ${auth_code} -i "${media_file}" 2>&1)" output="$(ffprobe -loglevel warning -activation_bytes ${auth_code} -i "${media_file}" 2>&1)"
# If invalid then say something. # If invalid then say something.
if [[ $? != "0" ]] ; then if [[ $? != "0" ]] ; then
# No matter what lets bark that something is wrong. # No matter what lets bark that something is wrong.
log "ERROR: Invalid File: ${media_file}" log "ERROR: Invalid File: ${media_file}"
elif [[ "${VALIDATE}" == "1" ]]; then elif [[ "${VALIDATE}" == "1" ]]; then
# If the validate option is present then lets at least state what is valid. # If the validate option is present then lets at least state what is valid.
log "Test 2 SUCCESS: ${media_file}" log "Test 2 SUCCESS: ${media_file}"
fi fi
# This is a big test only performed when the --validate swicth is passed. # This is a big test only performed when the --validate switch is passed.
if [[ "${VALIDATE}" == "1" ]]; then if [[ "${VALIDATE}" == "1" ]]; then
output="$(ffmpeg -hide_banner -activation_bytes ${auth_code} -i "${media_file}" -vn -f null - 2>&1)" output="$(ffmpeg -hide_banner -activation_bytes ${auth_code} -i "${media_file}" -vn -f null - 2>&1)"
if [[ $? != "0" ]] ; then if [[ $? != "0" ]] ; then
log "ERROR: Invalid File: ${media_file}" log "ERROR: Invalid File: ${media_file}"
else else
log "Test 3 SUCCESS: ${media_file}" log "Test 3 SUCCESS: ${media_file}"
fi fi
fi fi
@ -312,7 +314,7 @@ save_metadata() {
# ----- # -----
# Reach into the meta data and extract a specific value. # Reach into the meta data and extract a specific value.
# This is a long pipe of transforms. # This is a long pipe of transforms.
# This finds the first occurance of the key : value pair. # This finds the first occurance of the key : value pair.
get_metadata_value() { get_metadata_value() {
local key local key
@ -334,7 +336,7 @@ do
# Validate the input aax file. Note this happens no matter what. # Validate the input aax file. Note this happens no matter what.
# It's just that if the validate option is set then we skip to next file. # It's just that if the validate option is set then we skip to next file.
# If however vlaidate is not set and we proceed with the script any errors will # If however vlaidate is not set and we proceed with the script any errors will
# case the script to stop. # case the script to stop.
validate_aax "${aax_file}" validate_aax "${aax_file}"
if [[ ${VALIDATE} == "1" ]] ; then if [[ ${VALIDATE} == "1" ]] ; then
@ -360,6 +362,10 @@ do
album_date="$(get_metadata_value date)" album_date="$(get_metadata_value date)"
copyright="$(get_metadata_value copyright)" copyright="$(get_metadata_value copyright)"
if [[ "${noclobber}" = "1" ]] && [[ -d "${output_directory}" ]]; then
log "Noclobber enabled but directory '${output_directory}' exists. Exiting to avoid overwriting"
exit 0
fi
mkdir -p "${output_directory}" mkdir -p "${output_directory}"
# Fancy declaration of which book we are decoding. Including the AUTHCODE. # Fancy declaration of which book we are decoding. Including the AUTHCODE.
@ -384,7 +390,7 @@ do
# Grab the cover art if available. # Grab the cover art if available.
cover_file="${output_directory}/cover.jpg" cover_file="${output_directory}/cover.jpg"
log "Extracting cover into ${cover_file}..." log "Extracting cover into ${cover_file}..."
</dev/null ffmpeg -loglevel error -activation_bytes "${auth_code}" -i "${aax_file}" -an -codec:v copy "${cover_file}" </dev/null ffmpeg -loglevel error -activation_bytes "${auth_code}" -i "${aax_file}" -an -codec:v copy "${cover_file}"
# ----- # -----
# OK now spit the file if that's what you want. # OK now spit the file if that's what you want.
@ -408,11 +414,11 @@ do
read -r -u9 _ read -r -u9 _
read -r -u9 _ _ chapter read -r -u9 _ _ chapter
# The formating of the chapters names and the file names. # The formating of the chapters names and the file names.
# Chapter names are used in a few place. # Chapter names are used in a few place.
chapter_title="${title}-$(printf %0${#chaptercount}d $chapternum) ${chapter}" chapter_title="${title}-$(printf %0${#chaptercount}d $chapternum) ${chapter}"
chapter_file="${output_directory}/${chapter_title}.${extension}" chapter_file="${output_directory}/${chapter_title}.${extension}"
# the ID3 tags must only be specified for *.mp3 files, # the ID3 tags must only be specified for *.mp3 files,
# the other container formats come with their own # the other container formats come with their own
# tagging mechanisms. # tagging mechanisms.
@ -430,10 +436,10 @@ do
</dev/null ffmpeg -loglevel quiet -nostats -i "${output_file}" -i "${cover_file}" -ss "${chapter_start%?}" -to "${chapter_end}" -map 0:0 -map 1:0 -acodec "${codec}" ${id3_version_param} \ </dev/null ffmpeg -loglevel quiet -nostats -i "${output_file}" -i "${cover_file}" -ss "${chapter_start%?}" -to "${chapter_end}" -map 0:0 -map 1:0 -acodec "${codec}" ${id3_version_param} \
-metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" -metadata track="${chapternum}" -metadata title="${chapter_title}" \ -metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" -metadata track="${chapternum}" -metadata title="${chapter_title}" \
"${chapter_file}" "${chapter_file}"
# ----- # -----
# OK lets get what need for the next chapter in the Playlist m3u file. # OK lets get what need for the next chapter in the Playlist m3u file.
# Playlist creation. # Playlist creation.
duration=$(echo "${chapter_end} - ${chapter_start%?}" | bc) duration=$(echo "${chapter_end} - ${chapter_start%?}" | bc)
echo "#EXTINF:${duration%.*},${title} - ${chapter}" >> "${playlist_file}" echo "#EXTINF:${duration%.*},${title} - ${chapter}" >> "${playlist_file}"
echo "${chapter_title}.${extension}" >> "${playlist_file}" echo "${chapter_title}.${extension}" >> "${playlist_file}"
@ -444,7 +450,7 @@ do
if [[ ${container} == "mp4" && $(type -P mp4art) ]]; then if [[ ${container} == "mp4" && $(type -P mp4art) ]]; then
mp4art -q --add "${cover_file}" "${chapter_file}" mp4art -q --add "${cover_file}" "${chapter_file}"
log "Added cover art to ${chapter_title}" log "Added cover art to ${chapter_title}"
fi fi
fi fi
done 9< "$metadata_file" done 9< "$metadata_file"
@ -459,7 +465,7 @@ do
if [[ ${container} == "mp4" && $(type -P mp4art) ]]; then if [[ ${container} == "mp4" && $(type -P mp4art) ]]; then
mp4art -q --add "${cover_file}" "${output_file}" mp4art -q --add "${cover_file}" "${output_file}"
log "Added cover art to ${title}.${extension}" log "Added cover art to ${title}.${extension}"
fi fi
if [[ ${container} == "mp4" && $(type -P mp4chaps) ]]; then if [[ ${container} == "mp4" && $(type -P mp4chaps) ]]; then
ffprobe -i "${aax_file}" -print_format csv -show_chapters 2>/dev/null | awk -F "," '{printf "CHAPTER%02d=%02d:%02d:%02.3f\nCHAPTER%02dNAME=%s\n", NR, $5/60/60, $5/60%60, $5%60, NR, $8}' > "${output_directory}/${title}.chapters.txt" ffprobe -i "${aax_file}" -print_format csv -show_chapters 2>/dev/null | awk -F "," '{printf "CHAPTER%02d=%02d:%02d:%02.3f\nCHAPTER%02dNAME=%s\n", NR, $5/60/60, $5/60%60, $5%60, NR, $8}' > "${output_directory}/${title}.chapters.txt"
mp4chaps -i "${output_file}" mp4chaps -i "${output_file}"
@ -474,7 +480,7 @@ do
# Move the aax file if the decode is completed and the --complete_dir is set to a valid location. # Move the aax file if the decode is completed and the --complete_dir is set to a valid location.
# Check the target dir for if set if it is writable # Check the target dir for if set if it is writable
if [[ "x${completedir}" != "x" ]]; then if [[ "x${completedir}" != "x" ]]; then
log "Moving Transcoded ${aax_file} to ${completedir}" log "Moving Transcoded ${aax_file} to ${completedir}"
mv "${aax_file}" "${completedir}" mv "${aax_file}" "${completedir}"
fi fi

3
README.md
View File

@ -29,7 +29,7 @@ Thanks to kbabioch, this script has also been packaged in the [AUR](https://aur.
## Usage(s) ## Usage(s)
``` ```
bash AAXtoMP3 [-f|--flac] [-o|--opus] [-a|-aac] [-s|--single] [-c|--chaptered] [-e:mp3] [-e:m4a] [-e:m4b] [-A|--authcode <AUTHCODE>] [-t|--target_dir <PATH>] [-C|--complete_dir <PATH>] [-V|--validate] [-d|--debug] [-h|--help] <AAX INPUT_FILES>... bash AAXtoMP3 [-f|--flac] [-o|--opus] [-a|-aac] [-s|--single] [-c|--chaptered] [-e:mp3] [-e:m4a] [-e:m4b] [-A|--authcode <AUTHCODE>] [-n|--no-clobber] [-t|--target_dir <PATH>] [-C|--complete_dir <PATH>] [-V|--validate] [-d|--debug] [-h|--help] <AAX INPUT_FILES>...
``` ```
* **&lt;AAX INPUT_FILES&gt;**... are considered input file(s), useful for batching! * **&lt;AAX INPUT_FILES&gt;**... are considered input file(s), useful for batching!
@ -39,6 +39,7 @@ bash AAXtoMP3 [-f|--flac] [-o|--opus] [-a|-aac] [-s|--single] [-c|--chaptered] [
* **-o** or **--opus** Ogg/Opus Encoding defaults to multiple file output by chapter. The extention is .ogg * **-o** or **--opus** Ogg/Opus Encoding defaults to multiple file output by chapter. The extention is .ogg
* **-a** or **--aac** AAC Encoding and produce a m4a single files output. * **-a** or **--aac** AAC Encoding and produce a m4a single files output.
* **-A** or **--authcode &lt;AUTHCODE&gt;** for this execution of the command use the provided &lt;AUTHCODE&gt; to decode the AAX file. * **-A** or **--authcode &lt;AUTHCODE&gt;** for this execution of the command use the provided &lt;AUTHCODE&gt; to decode the AAX file.
* **-n** or **--no-clobber** If set and the target directory already exists, AAXtoMP3 will exit without overwriting anything.
* **-t** or **--target_dir &lt;PATH&gt;** change the default output location to the named &lt;PATH&gt;. Note the default location is ./Audiobook of the directory to which each AAX file resides. * **-t** or **--target_dir &lt;PATH&gt;** change the default output location to the named &lt;PATH&gt;. Note the default location is ./Audiobook of the directory to which each AAX file resides.
* **-C** or **--complete_dir &lt;PATH&gt;** a directory to place aax files after they have been decoded successfully. Note make a back up of your aax files prior to using this option. Just in case something goes wrong. * **-C** or **--complete_dir &lt;PATH&gt;** a directory to place aax files after they have been decoded successfully. Note make a back up of your aax files prior to using this option. Just in case something goes wrong.
* **-V** or **--validate** Perform 2 validation tests on the supplied aax files. This is more extensive than the normal validation as we attempt to transcode the aax file to a null file. This can take a long period of time. However it is useful when inspecting a large set of aax files prior to transcoding. As download errors are common with Audible servers. * **-V** or **--validate** Perform 2 validation tests on the supplied aax files. This is more extensive than the normal validation as we attempt to transcode the aax file to a null file. This can take a long period of time. However it is useful when inspecting a large set of aax files prior to transcoding. As download errors are common with Audible servers.