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metaflac-field2field: minor improvements, shellcheck

master
Matteo Cypriani 1 year ago
parent
commit
aca5e08738
1 changed files with 39 additions and 35 deletions
  1. 39
    35
      audio/metaflac-field2field.sh

+ 39
- 35
audio/metaflac-field2field.sh View File

@@ -18,41 +18,45 @@

#set -x

print_usage()
{
echo "Usage:"
echo " $0 <ACTION> <SRC_FIELD> <DST_FIELD> <FILE.flac> [ <FILE2.flac> [...] ]"
echo "<ACTION> : copy | move | rmcopy | mvcopy"
echo " copy: each occurrence of SRC_FIELD is duplicated to create an occurrence of"
echo " DST_FIELD; all the existing occurrences of SRC_FIELD and DST_FIELD are"
echo " kept."
echo " move: each occurrence of SRC_FIELD is renamed to create an occurrence of"
echo " DST_FIELD; the existing occurrences of DST_FIELD are kept."
echo " rmcopy: the existing occurrences of DST_FIELD are deleted, then each"
echo " occurrence of SRC_FIELD is duplicated to create an occurrence"
echo " of DST_FIELD; the occurrences of SRC_FIELD are kept."
echo " rmmove: the existing occurrences of DST_FIELD are deleted, then each"
echo " occurrence of SRC_FIELD is renamed to create an occurrence of"
echo " DST_FIELD."
exit 1
}
USAGE=$(cat <<EOF
Usage:
$0 <ACTION> <SRC_FIELD> <DST_FIELD> <FILE.flac> [ <FILE2.flac> [...] ]
<ACTION> : copy | move | rmcopy | mvcopy
copy: each occurrence of SRC_FIELD is duplicated to create an occurrence of
DST_FIELD; all the existing occurrences of SRC_FIELD and DST_FIELD are
kept.
move: each occurrence of SRC_FIELD is renamed to create an occurrence of
DST_FIELD; the existing occurrences of DST_FIELD are kept.
rmcopy: the existing occurrences of DST_FIELD are deleted, then each
occurrence of SRC_FIELD is duplicated to create an occurrence
of DST_FIELD; the occurrences of SRC_FIELD are kept.
rmmove: the existing occurrences of DST_FIELD are deleted, then each
occurrence of SRC_FIELD is renamed to create an occurrence of
DST_FIELD.
EOF
)

# Right number of arguments?
if [ $# -lt 4 ] ; then
echo "Wrong number of arguments!"
echo "Wrong number of arguments!" >&2
print_usage
fi

ACTION=$1
ACTION="$1"
shift

# Known action type?
case $ACTION in
case "$ACTION" in
copy) ;;
move) ;;
rmcopy) ;;
rmmove) ;;
*) echo "Action unknown \"$ACTION\"!" ; print_usage ;;
*)
printf 'Action unknown "%s"!\n\n' "$ACTION" >&2
printf '%s\n' "$USAGE" >&2
exit 1
;;
esac

SRC_FIELD=$1
@@ -60,28 +64,28 @@ shift
DST_FIELD=$1
shift

echo "Source field: $SRC_FIELD"
echo "Destination field: $DST_FIELD"
echo "Action: $ACTION"
printf 'Source field: %s\n' "$SRC_FIELD"
printf 'Destination field: %s\n' "$DST_FIELD"
printf 'Action: %s\n' "$ACTION"

echo "Processing files..."

if echo $ACTION | egrep '^rm' >/dev/null ; then
echo "Deleting field $DST_FIELD on each file..."
metaflac --remove-tag=$DST_FIELD "$@"
if echo "$ACTION" | grep '^rm' >/dev/null ; then
printf 'Deleting field "%s" on each file...\n' "$DST_FIELD"
metaflac --remove-tag="$DST_FIELD" "$@"
fi

for file in "$@" ; do
echo "Setting field \"$DST_FIELD\" on file: $file"
metaflac --show-tag=$SRC_FIELD "$file" | sed 's/^[A-Z]\+=//' | while read c1 ; do
echo "Adding $DST_FIELD=$c1..."
metaflac --set-tag=$DST_FIELD="$c1" "$file"
printf 'Setting field "%s" on file: "%s"\n' "$DST_FIELD" "$file"
metaflac --show-tag="$SRC_FIELD" "$file" | sed 's/^[A-Z]\+=//' | while read -r c1 ; do
printf 'Adding "%s"...\n' "$DST_FIELD=$c1"
metaflac --set-tag="$DST_FIELD"="$c1" "$file"
done
done

if echo $ACTION | egrep 'move$' >/dev/null ; then
echo "Deleting $SRC_FIELD on each file..."
metaflac --remove-tag=$SRC_FIELD "$@"
if echo "$ACTION" | grep 'move$' >/dev/null ; then
printf 'Deleting "%s" on each file...\n' "$SRC_FIELD"
metaflac --remove-tag="$SRC_FIELD" "$@"
fi

# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

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