Move under www to ease rsync

www/eps/hpr3413/hpr3413_show_queue_db_1

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+#!/bin/bash -
+#===============================================================================
+#
+#         FILE: show_queue
+#
+#        USAGE: ./show_queue
+#
+#  DESCRIPTION: Show the pending queue, expanding each album's details from
+#               the database.
+#
+#               / This version calls sqlite3 repeatedly in a loop /
+#
+#      OPTIONS: ---
+# REQUIREMENTS: ---
+#         BUGS: ---
+#        NOTES: ---
+#       AUTHOR: Dave Morriss (djm), Dave.Morriss@gmail.com
+#      VERSION: 0.1.1
+#      CREATED: 2020-09-15 12:38:03
+#     REVISION: 2020-09-15 12:38:11
+#
+#===============================================================================
+
+set -o nounset                              # Treat unset variables as an error
+
+SCRIPT=${0##*/}
+#DIR=${0%/*}
+
+VERSION='0.1.1'
+
+#===  FUNCTION  ================================================================
+#          NAME:  cleanup_temp
+#   DESCRIPTION:  Cleanup temporary files when a 'trap' command is triggered
+#    PARAMETERS:  * - names of temporary files to delete
+#       RETURNS:  Nothing
+#===============================================================================
+function cleanup_temp {
+    for tmp in "$@"; do
+        [ -e "$tmp" ] && rm --force "$tmp"
+    done
+    exit 0
+}
+
+#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+STDOUT="/dev/fd/2"
+
+#
+# Files and directories
+#
+BASEDIR="$HOME/MusicDownloads"
+DATADIR="$BASEDIR/Magnatune_Data"
+SCRIPTDIR="$BASEDIR/magnatune-downloader"
+
+QUEUE="$SCRIPTDIR/pending"
+DB="$DATADIR/sqlite_normalized.db"
+
+#
+# Sanity checks
+#
+[ -e "$QUEUE" ] || { echo "$QUEUE not found"; exit 1; }
+
+#
+# Check the queue contains data
+#
+if [[ ! -s $QUEUE ]]; then
+    echo "$SCRIPT($VERSION): there is nothing in the queue"
+    exit
+fi
+
+#
+# Make temporary files and set traps to delete them
+#
+TMP1=$(mktemp) || { echo "$SCRIPT: creation of temporary file failed!" >$STDOUT; exit 1; }
+trap 'cleanup_temp $TMP1' SIGHUP SIGINT SIGPIPE SIGTERM EXIT
+
+RE='^http://magnatune.com/artists/albums/([A-Za-z0-9-]+)/?$'
+
+#
+# Add a partial SQL query that counts the feeds that match the regex. Store it
+# in a temporary file
+#
+cat > "$TMP1" <<ENDSQL1
+SELECT
+    ar.name AS Artist,
+    al.name AS Album,
+    group_concat(distinct ge.name) AS 'Genre',
+    group_concat(distinct sg.name) AS 'Subgenre',
+    al.sku as Code
+FROM albums al
+JOIN artists ar ON al.artist_id = ar.artists_id
+JOIN genres_albums ga on al.album_id = ga.album_id
+JOIN genres ge ON ge.genre_id = ga.genre_id
+JOIN subgenres_albums sa on al.album_id = sa.album_id
+JOIN subgenres sg ON sg.subgenre_id = sa.subgenre_id
+GROUP BY al.album_id
+ENDSQL1
+
+#
+# Read and report the queue elements
+#
+n=0
+while read -r URL; do
+    ((n++))
+
+    if [[ $URL =~ $RE ]]; then
+        SKU="${BASH_REMATCH[1]}"
+    else
+        echo "Problem parsing URL in queue (line $n): $URL"
+        continue
+    fi
+
+    #
+    # Build the query by concatenating the partial SQL with the last line with
+    # the variable contents in it. Use a sub-process to send both pieces of
+    # text to sqlite3.
+    #
+    (cat "$TMP1"; echo "HAVING sku = '$SKU';") | sqlite3 -line "$DB"
+    echo '--------'
+
+done < "$QUEUE"
+
+exit
+
+# vim: syntax=sh:ts=8:sw=4:ai:et:tw=78:fo=tcrqn21
+