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books: refactoring, split out common code into library, shellcheck'ed

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Yetangitu 2021-05-12 15:14:03 +00:00
parent e1ae2cdb00
commit eba03f2669
1 changed files with 98 additions and 167 deletions
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books
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@ -1,12 +1,22 @@
#!/usr/bin/env bash #!/usr/bin/env bash
#
# shellcheck disable=SC2034,SC1090,SC2254
shopt -s extglob shopt -s extglob
trap "trap_error" TERM trap "trap_error" TERM
trap "trap_clean" EXIT trap "trap_clean" EXIT
export TOP_PID=$$ export TOP_PID=$$
version="0.7.0" version="0.7.1"
release="20210506" release="20200812"
functions="$(dirname "$0")/books_functions"
if [ -f "$functions" ]; then
source "$functions"
else
echo "$functions not found"
exit 1
fi
main () { main () {
# PREFERENCES # PREFERENCES
@ -103,6 +113,8 @@ main () {
[q]=openlibraryid [q]=openlibraryid
[b]=identifierwodash [b]=identifierwodash
[m]=md5 [m]=md5
[D]=ddc
[L]=lcc
) )
# base url for covers # base url for covers
@ -167,9 +179,9 @@ main () {
# used to select table prefix in command line search, contains regex patterns # used to select table prefix in command line search, contains regex patterns
declare -A attribute_columns=( declare -A attribute_columns=(
[description]="descr|toc"
[hashes]="crc32|edonkey|aich|sha1|tth|torrent|btih|sha256"
[topics]="topic_descr|topic_id" [topics]="topic_descr|topic_id"
[hashes]="crc32|edonkey|aich|sha1|tth|torrent|btih|sha256"
[description]="^descr$|toc"
) )
# query output filter for different purposes # query output filter for different purposes
@ -189,15 +201,13 @@ main () {
) )
# GETOPT config # GETOPT config
# remove captital M from options (tr -d 'm ') to allow it to be used for fast path search search_options='@('$(echo "${!schema[@]}"|tr ' ' '|')')'
# remove capital I from options (tr -d 'i ') to allow it to be used for use_ipfs search_getopts="$(echo "${!schema[@]}"|tr ' ' ':'):"
search_options='@('$(echo "${!schema[@]}"|tr ' ' '|')'|'$(echo "${!schema[@]}"|tr -d 'm '|tr -d 'i '|tr ' ' '|'|tr '[:lower:]' '[:upper:]')')'
search_getopts="$(echo "${!schema[@]}"|tr ' ' ':'):$(echo "${!schema[@]}"|tr -d 'm '|tr -d 'i '|tr ' ' ':'|tr '[:lower:]' '[:upper:]'):"
# X11-related config # X11-related config
if xset q &>/dev/null; then if xset q &>/dev/null; then
# used to size yad/zenity windows # used to size yad/zenity windows
min_screenres=$(xrandr|grep '*'|sort -n|head -1|awk '{print $1}') min_screenres=$(xrandr|grep '\*'|sort -n|head -1|awk '{print $1}')
x_size=$(($(echo "$min_screenres"|cut -d 'x' -f 1) - 50)) x_size=$(($(echo "$min_screenres"|cut -d 'x' -f 1) - 50))
y_size=$(($(echo "$min_screenres"|cut -d 'x' -f 2) - 30)) y_size=$(($(echo "$min_screenres"|cut -d 'x' -f 2) - 30))
fi fi
@ -220,8 +230,6 @@ main () {
query="" query=""
no_update=0 no_update=0
mysql=$(find_tool "mysql")
# this contains the columns in the current database, used to filter out unsupported search fields # this contains the columns in the current database, used to filter out unsupported search fields
current_fields="$(get_current_fields)" current_fields="$(get_current_fields)"
@ -242,7 +250,7 @@ main () {
# PROCESS OPTIONS AND BUILD QUERY # PROCESS OPTIONS AND BUILD QUERY
while getopts ":${search_getopts}fF:hkx#:@wu:I:U:=:j:J:M:$" OPTION while getopts ":${search_getopts}fF:hkxX#:@wu:I:U:=:j:J:M:$" OPTION
do do
case $OPTION in case $OPTION in
$search_options) $search_options)
@ -272,6 +280,9 @@ main () {
x) x)
no_update=1 no_update=1
;; ;;
X)
((exact_match++))
;;
'#') '#')
limit="${OPTARG}" limit="${OPTARG}"
;; ;;
@ -288,7 +299,7 @@ main () {
exit_with_error "-u: torrent helper script ($torrent_tools) not found" exit_with_error "-u: torrent helper script ($torrent_tools) not found"
fi fi
else else
exit_with_error '-u needs torrent helper script, see $torrent_tools' exit_with_error "-u needs torrent helper script, see \$torrent_tools"
fi fi
else else
unset use_torrent unset use_torrent
@ -296,7 +307,10 @@ main () {
;; ;;
I) I)
if is_true "$OPTARG"; then if [[ "$OPTARG" == "show" ]]; then
get_ipfs_cid
exit
elif is_true "$OPTARG"; then
use_ipfs=1 use_ipfs=1
unset use_torrent unset use_torrent
else else
@ -462,37 +476,13 @@ main () {
} }
# find tool, returns the first|one|found, exit with error message if none found
find_tool () {
IFS='|' read -ra tools <<< "$*"
found=0
for tool in ${tools[@]}; do
if [[ -n $(which "$tool") ]]; then
found=1
break
fi
done
if [[ $found -eq 0 ]]; then
if [[ ${#tools[@]} -gt 1 ]]; then
exit_with_error "missing programs: $*; install at least one of these: ${tools[*]} and try again"
else
exit_with_error "missing program: $1; please install and try again"
fi
fi
echo "$tool"
}
# DOWNLOAD # DOWNLOAD
# feed this a list of hashes to attempt to download the related publications # feed this a list of hashes to attempt to download the related publications
download () { download () {
db="$1" db="$1"
shift shift
for md5 in $@; do for md5 in "$@"; do
filename=$(get_filename "$md5" "$use_deep_path") filename=$(get_filename "$md5" "$use_deep_path")
@ -504,7 +494,6 @@ download () {
dl_src_ipfs "$db" "$md5" "$filename" dl_src_ipfs "$db" "$md5" "$filename"
else else
dl_src_direct "$db" "$md5" "$filename" dl_src_direct "$db" "$md5" "$filename"
# dl_src_${db} "$md5" "$filename"
fi fi
fi fi
done done
@ -566,20 +555,18 @@ get_file () {
;; ;;
esac esac
trap "kill $(<"${tmpdir}/dl_pid") $(<"${tmpdir}/pager_pid") 2>/dev/null; rm -rf ${tmpdir};" EXIT trap 'kill $(<"${tmpdir}"/dl_pid) $(<"${tmpdir}"/pager_pid) 2>/dev/null; rm -rf "${tmpdir}";' EXIT
# wait for the pager to finish (or be closed by the user) and/or the download to finish # wait for the pager to finish (or be closed by the user) and/or the download to finish
# this replaces the (buggy) auto-kill functionality of yad and zenity (dialog does not have any auto-kill) # this replaces the (buggy) auto-kill functionality of yad and zenity (dialog does not have any auto-kill)
while (kill -0 $(<"${tmpdir}/pager_pid") 2>/dev/null); do
if (kill -0 $(<"${tmpdir}/dl_pid") 2>/dev/null); then while (kill -0 "$(<"${tmpdir}/pager_pid")" 2>/dev/null); do
if (kill -0 "$(<"${tmpdir}/dl_pid")" 2>/dev/null); then
sleep 1 sleep 1
else else
break break
fi fi
done done
kill $(<"${tmpdir}/dl_pid") 2>/dev/null
kill $(<"${tmpdir}/pager_pid") 2>/dev/null
rm -rf "${tmpdir}"
} }
@ -592,11 +579,11 @@ dl_src_direct () {
case "$db" in case "$db" in
libgen) libgen)
url="${downloadurl[$db]}/$(get_torrent ${db} ${md5})/${md5,,}/placeholder" url="${downloadurl[$db]}/$(get_torrent "${db}" "${md5}")/${md5,,}/placeholder"
;; ;;
libgen_fiction) libgen_fiction)
extension=$(get_attr 'extension' "${db}" "${md5}") extension=$(get_attr 'extension' "${db}" "${md5}")
url="${downloadurl[$db]}/$(get_torrent ${db} ${md5})/${md5,,}.${extension,,}/placeholder" url="${downloadurl[$db]}/$(get_torrent "${db}" "${md5}")/${md5,,}.${extension,,}/placeholder"
;; ;;
*) *)
exit_with_error "no direct download available for $db" exit_with_error "no direct download available for $db"
@ -629,7 +616,7 @@ dl_src_ipfs () {
if [[ -z $ipfs_cid ]]; then if [[ -z $ipfs_cid ]]; then
echo "ipfs_cid not found, trying direct download..." echo "ipfs_cid not found, trying direct download..."
dl_src_${db} "${md5}" "${filename}" dl_src_direct "${db}" "${md5}" "${filename}"
else else
url="${ipfs_gw}/ipfs/${ipfs_cid}" url="${ipfs_gw}/ipfs/${ipfs_cid}"
get_file "'${filename}'" "${url}" get_file "'${filename}'" "${url}"
@ -735,7 +722,7 @@ dl_src_torrent () {
until [[ $count == 5 ]]; do until [[ $count == 5 ]]; do
if copy_file; then break; fi if copy_file; then break; fi
sleep 5 sleep 5
count=$((count+1)) ((count++))
done done
if [[ -f "$dest" ]]; then if [[ -f "$dest" ]]; then
if ! check_md5 "$dest"; then if ! check_md5 "$dest"; then
@ -769,8 +756,8 @@ dl_src_torrent () {
dl_torrent () { dl_torrent () {
db="$1" db="$1"
md5="$2" md5="$2"
torrent_filename="$(get_torrent_filename ${db} ${md5})" torrent_filename="$(get_torrent_filename "${db}" "${md5}")"
torrent_abspath="$(get_torrent_filename ${db} ${md5} 1)" torrent_abspath="$(get_torrent_filename "${db}" "${md5}" 1)"
if [[ ! -f "$torrent_abspath" ]]; then if [[ ! -f "$torrent_abspath" ]]; then
url="${torrenturl[$db]}/${torrent_filename}" url="${torrenturl[$db]}/${torrent_filename}"
@ -788,7 +775,7 @@ dl_torrent () {
# currently only the main libgen db can be updated through the api # currently only the main libgen db can be updated through the api
update_database () { update_database () {
db="${programs[books]}" db="${programs[books]}"
last_update=$(($(date +%s)-$(date -d "$(get_time_last_modified $db)" +%s))) last_update=$(($(date +%s)-$(date -d "$(get_time_last_modified "$db")" +%s)))
if [[ $last_update -gt $((max_age*60)) ]]; then if [[ $last_update -gt $((max_age*60)) ]]; then
if [[ $no_update -eq 0 ]]; then if [[ $no_update -eq 0 ]]; then
update_libgen=$(find_tool "update_libgen") update_libgen=$(find_tool "update_libgen")
@ -799,28 +786,17 @@ update_database () {
fi fi
} }
dbx () {
db="$1"
shift
if [ $# -gt 0 ]; then
"$mysql" -Bsss -h ${dbhost} -P ${dbport} -u ${dbuser} ${db} -e "$@"
else
"$mysql" -Bsss -h ${dbhost} -P ${dbport} -u ${dbuser} ${db}
fi
}
get_current_fields () { get_current_fields () {
db="${programs[$program]}" db="${programs[$program]}"
declare -a db_tables="${tables[$db]}" declare -a db_tables="${tables[$db]}"
for table in ${db_tables[@]}; do for table in "${db_tables[@]}"; do
dbx $db "describe $table;"|awk '{print tolower($1)}' dbx "$db" "describe $table;"|awk '{print tolower($1)}'
done done
} }
get_time_last_modified () { get_time_last_modified () {
dbx $db 'select MAX(TimeLastModified) FROM updated;' dbx "$db" 'select MAX(TimeLastModified) FROM updated;'
} }
add_clause () { add_clause () {
@ -845,17 +821,18 @@ add_clause () {
pattern=${pattern//%/\\%} pattern=${pattern//%/\\%}
pattern=${pattern//_/\\_} pattern=${pattern//_/\\_}
[[ ! $opt_pattern =~ $pattern ]] && opt_pattern+=" $pattern" [[ ! $opt_pattern =~ $pattern ]] && opt_pattern+=" $pattern"
case "${option}" in if [ -z "$exact_match" ]; then
[[:lower:]])
clauses+=" and ${schema[${option}]} like '%${pattern}%'" clauses+=" and ${schema[${option}]} like '%${pattern}%'"
;; elif [ "$exact_match" -eq 1 ]; then
[[:upper:]]) clauses+=" and ${schema[${option}]} like '${pattern}%'"
clauses+=" and ${schema[${option,,}]}='${pattern}'" elif [ "$exact_match" -eq 2 ]; then
;; clauses+=" and ${schema[${option}]} like '%${pattern}'"
esac else
clauses+=" and ${schema[${option}]}='${pattern}'"
fi
fi fi
[[ ! $opt_fields =~ ${schema[${option,,}]} ]] && opt_fields+="${schema[${option,,}]}," [[ ! $opt_fields =~ ${schema[${option}]} ]] && opt_fields+="${schema[${option}]},"
else else
echo "warning: option -$option ignored (database $db does not contain column ${schema[${option}]})" echo "warning: option -$option ignored (database $db does not contain column ${schema[${option}]})"
fi fi
@ -878,7 +855,7 @@ run_query () {
else else
query_result+=("${line[@]}") query_result+=("${line[@]}")
fi fi
done < <(echo "$sql"|"$mysql" -Bssss -h "$dbhost" -P "$dbport" -u "$dbuser" "$db"|(eval "${filters[$filter]}")) done < <(dbx "$db" "$sql"|(eval "${filters[$filter]}"))
} }
get_attr () { get_attr () {
@ -1028,9 +1005,8 @@ preview_zenity () {
run_query "$db" "preview_zenity" "${sql}" run_query "$db" "preview_zenity" "${sql}"
if [[ ${#query_result[@]} -gt 0 ]]; then if [[ ${#query_result[@]} -gt 0 ]]; then
filename=$(get_attr 'filename' "$db" "$md5") filename=$(get_attr 'filename' "$db" "$md5")
info="<table><tr><td><b>Author</b>:</td><td colspan='5'>${query_result[0]}</td></tr><tr><td><b>Title</b>:</td><td colspan='5'>${query_result[1]}</td></tr><tr><td><b>Volume</b>:</td><td>${query_result[2]}</td><td><b>Series</b>:</td><td>${query_result[3]}</td><td><b>Edition</b>:</td><td>${query_result[4]}</td></tr><tr><td><b>Year</b>:</td><td>${query_result[5]}</td><td><b>Publisher</b>:</td><td>${query_result[6]}</td></tr><tr><td><b>Language</b>:</td><td>${query_result[7]}</td><td><b>Size</b>:</td><td>${query_result[8]}</td><td><b>Type</b>:</td><td>${query_result[9]}</td></tr><tr><td><b>OLID</b>:</td><td>${query_reslt[10]}</td><td><b>ISBN</b>:</td><td>${query_result[11]}</td><td><b>MD5</b>:</td><td>${md5^^}</td></tr></table><span style='font-size:x-small;'><pre>${filename}</pre></span><hr><table><tr><td style='width:25%;'><img style='width:95%;' src='${coverurl[$db]}/${query_result[13]}'></td><td style='vertical-align:top;'>$(strip_html ${query_result[12]})</td></tr></table>" info="<table><tr><td><b>Author</b>:</td><td colspan='5'>${query_result[0]}</td></tr><tr><td><b>Title</b>:</td><td colspan='5'>${query_result[1]}</td></tr><tr><td><b>Volume</b>:</td><td>${query_result[2]}</td><td><b>Series</b>:</td><td>${query_result[3]}</td><td><b>Edition</b>:</td><td>${query_result[4]}</td></tr><tr><td><b>Year</b>:</td><td>${query_result[5]}</td><td><b>Publisher</b>:</td><td>${query_result[6]}</td></tr><tr><td><b>Language</b>:</td><td>${query_result[7]}</td><td><b>Size</b>:</td><td>${query_result[8]}</td><td><b>Type</b>:</td><td>${query_result[9]}</td></tr><tr><td><b>OLID</b>:</td><td>${query_result[10]}</td><td><b>ISBN</b>:</td><td>${query_result[11]}</td><td><b>MD5</b>:</td><td>${md5^^}</td></tr></table><span style='font-size:x-small;'><pre>${filename}</pre></span><hr><table><tr><td style='width:25%;'><img style='width:95%;' src='${coverurl[$db]}/${query_result[13]}'></td><td style='vertical-align:top;'>$(strip_html "${query_result[12]}")</td></tr></table>"
zenity_result=$(echo "$info"|zenity --width $x_size --height $y_size --text-info --html --ok-label "Download" --cancel-label "Skip" --filename=/dev/stdin 2>/dev/null) if zenity_result=$(echo "$info"|zenity --width $x_size --height $y_size --text-info --html --ok-label "Download" --cancel-label "Skip" --filename=/dev/stdin 2>/dev/null); then
if [[ $? -eq 0 ]]; then
download "${db}" "${md5}" download "${db}" "${md5}"
fi fi
fi fi
@ -1046,10 +1022,8 @@ preview_yad () {
run_query "$db" "preview_yad" "${sql}" run_query "$db" "preview_yad" "${sql}"
if [[ ${#query_result[@]} -gt 0 ]]; then if [[ ${#query_result[@]} -gt 0 ]]; then
filename=$(get_attr 'filename' "$db" "$md5") filename=$(get_attr 'filename' "$db" "$md5")
info="<table><tr><td><b>Author</b>:</td><td colspan='5'>${query_result[0]}</td></tr><tr><td><b>Title</b>:</td><td colspan='5'>${query_result[1]}</td></tr><tr><td><b>Volume</b>:</td><td>${query_result[2]}</td><td><b>Series</b>:</td><td>${query_result[3]}</td><td><b>Edition</b>:</td><td>${query_result[4]}</td></tr><tr><td><b>Year</b>:</td><td>${query_result[5]}</td><td><b>Publisher</b>:</td><td>${query_result[6]}</td></tr><tr><td><b>Language</b>:</td><td>${query_result[7]}</td><td><b>Size</b>:</td><td>${query_result[8]}</td><td><b>Type</b>:</td><td>${query_result[9]}</td></tr><tr><td><b>OLID</b>:</td><td>${query_reslt[10]}</td><td><b>ISBN</b>:</td><td>${query_result[11]}</td><td><b>MD5</b>:</td><td>${md5^^}</td></tr></table><span style='font-size:x-small;'><pre>${filename}</pre></span><hr><table><tr><td style='width:25%;'><img style='width:95%;' src='${coverurl[$db]}/${query_result[13]}'></td><td style='vertical-align:top;'>$(strip_html ${query_result[12]})</td></tr></table>" info="<table><tr><td><b>Author</b>:</td><td colspan='5'>${query_result[0]}</td></tr><tr><td><b>Title</b>:</td><td colspan='5'>${query_result[1]}</td></tr><tr><td><b>Volume</b>:</td><td>${query_result[2]}</td><td><b>Series</b>:</td><td>${query_result[3]}</td><td><b>Edition</b>:</td><td>${query_result[4]}</td></tr><tr><td><b>Year</b>:</td><td>${query_result[5]}</td><td><b>Publisher</b>:</td><td>${query_result[6]}</td></tr><tr><td><b>Language</b>:</td><td>${query_result[7]}</td><td><b>Size</b>:</td><td>${query_result[8]}</td><td><b>Type</b>:</td><td>${query_result[9]}</td></tr><tr><td><b>OLID</b>:</td><td>${query_result[10]}</td><td><b>ISBN</b>:</td><td>${query_result[11]}</td><td><b>MD5</b>:</td><td>${md5^^}</td></tr></table><span style='font-size:x-small;'><pre>${filename}</pre></span><hr><table><tr><td style='width:25%;'><img style='width:95%;' src='${coverurl[$db]}/${query_result[13]}'></td><td style='vertical-align:top;'>$(strip_html "${query_result[12]}")</td></tr></table>"
yad_result=$(echo "$info"|yad --width $x_size --height $y_size --html --button='gtk-cancel:1' --button='Download!filesave!Download this publication:0' --filename=/dev/stdin 2>/dev/null) if yad_result=$(echo "$info"|yad --width $x_size --height $y_size --html --button='gtk-cancel:1' --button='Download!filesave!Download this publication:0' --filename=/dev/stdin 2>/dev/null); then
yad_return=$?
if [[ $yad_return -eq 0 ]]; then
download "${db}" "${md5}" download "${db}" "${md5}"
fi fi
fi fi
@ -1083,9 +1057,11 @@ list_dialog () {
clear clear
if [[ -n $dialog_result ]]; then if [[ -n $dialog_result ]]; then
if [[ $show_preview -gt 0 ]]; then if [[ $show_preview -gt 0 ]]; then
preview "$db" "$dialog_result" # shellcheck disable=SC2086
preview "$db" $dialog_result
else else
download "$db" "$dialog_result" # shellcheck disable=SC2086
download "$db" $dialog_result
fi fi
fi fi
fi fi
@ -1103,9 +1079,11 @@ list_whiptail () {
clear clear
if [[ -n $whiptail_result ]]; then if [[ -n $whiptail_result ]]; then
if [[ $show_preview -gt 0 ]]; then if [[ $show_preview -gt 0 ]]; then
preview "$db" "$whiptail_result" # shellcheck disable=SC2086
preview "$db" $whiptail_result
else else
download "$db" "$whiptail_result" # shellcheck disable=SC2086
download "$db" $whiptail_result
fi fi
fi fi
fi fi
@ -1115,12 +1093,15 @@ list_yad () {
show_preview="$1" show_preview="$1"
db="${programs[$program]}" db="${programs[$program]}"
if [[ ${#query_result[@]} -gt 0 ]]; then if [[ ${#query_result[@]} -gt 0 ]]; then
yad_result=$(yad --width $x_size --height $y_size --separator=" " --title "$program :: ${window_title}" --text "${list_heading}" --list --checklist --dclick-action='bash -c "libgen_preview '$db' %s" &' ${yad_columns[$db]} -- "${query_result[@]}" 2>/dev/null) # shellcheck disable=SC2086
yad_result=$(yad --width $x_size --height $y_size --separator=" " --title "$program :: ${window_title}" --text "${list_heading}" --list --checklist --dclick-action='bash -c "libgen_preview '"$db"' %s" &' ${yad_columns[$db]} -- "${query_result[@]}" 2>/dev/null)
if [[ -n $yad_result ]]; then if [[ -n $yad_result ]]; then
if [[ $show_preview -gt 0 ]]; then if [[ $show_preview -gt 0 ]]; then
preview "$db" "$yad_result" # shellcheck disable=SC2086
preview "$db" $yad_result
else else
download "$db" "$yad_result" # shellcheck disable=SC2086
download "$db" $yad_result
fi fi
fi fi
fi fi
@ -1133,12 +1114,15 @@ list_zenity () {
show_preview="$1" show_preview="$1"
db="${programs[$program]}" db="${programs[$program]}"
if [[ ${#query_result[@]} -gt 0 ]]; then if [[ ${#query_result[@]} -gt 0 ]]; then
# shellcheck disable=SC2086
zenity_result=$(zenity --width $x_size --height $y_size --separator=" " --title "$program :: ${window_title}" --text "${list_heading}" --list --checklist ${zenity_columns[$db]} "${query_result[@]}" 2>/dev/null) zenity_result=$(zenity --width $x_size --height $y_size --separator=" " --title "$program :: ${window_title}" --text "${list_heading}" --list --checklist ${zenity_columns[$db]} "${query_result[@]}" 2>/dev/null)
if [[ -n $zenity_result ]];then if [[ -n $zenity_result ]];then
if [[ $show_preview -gt 0 ]]; then if [[ $show_preview -gt 0 ]]; then
preview "$db" "$zenity_result" # shellcheck disable=SC2086
preview "$db" $zenity_result
else else
download "$db" "$zenity_result" # shellcheck disable=SC2086
download "$db" $zenity_result
fi fi
fi fi
fi fi
@ -1148,15 +1132,16 @@ list_zenity () {
# SQL # SQL
get_fields () { get_fields () {
# shellcheck disable=SC2086
db="${programs[$program]}" db="${programs[$program]}"
[[ -z "$show_fields" ]] && show_fields="${pager_columns[$db]}" [[ -z "$show_fields" ]] && show_fields="${pager_columns[$db]}"
IFS=',' read -ra fields <<< "$show_fields" IFS=',' read -ra fields <<< "$show_fields"
result="" result=""
for field in ${fields[@]}; do for field in "${fields[@]}"; do
[[ ! "${current_fields[*],,}" =~ ${field,,} ]] && exit_with_error "no such field: $field" [[ ! "${current_fields[*],,}" =~ ${field,,} ]] && exit_with_error "no such field: $field"
table="m" table="m"
for category in ${!attribute_columns[@]}; do for category in "${!attribute_columns[@]}"; do
if [[ "${field,,}" =~ ${attribute_columns[$category],,} ]]; then if [[ "${field,,}" =~ ${attribute_columns[$category],,} ]]; then
table="${category:0:1}" table="${category:0:1}"
break break
@ -1282,29 +1267,6 @@ prepare_sql () {
# UTILITY FUNCTIONS # UTILITY FUNCTIONS
url_available () {
url="$1"
dl_tool=$(find_tool "$dl_tools")
case "$dl_tool" in
curl)
curl --output /dev/null --silent --fail -r 0-0 "$url"
;;
wget)
wget -q --spider "$url"
;;
*)
exit_with_error "unknown download tool ${dl_tool}"
;;
esac
}
add_cron_job () {
job="$*"
(crontab -l ; echo "*/1 * * * * $job") 2>/dev/null | sort | uniq | crontab -
}
get_db_for_md5 () { get_db_for_md5 () {
md5="$1" md5="$1"
@ -1325,7 +1287,7 @@ get_torrent_filename () {
md5="$2" md5="$2"
absolute="$3" absolute="$3"
echo -n "${absolute:+$target_directory/${torrent_directory:+$torrent_directory/}}${torrentprefix[$db]}_$(get_torrent ${db} ${md5}).torrent" echo -n "${absolute:+$target_directory/${torrent_directory:+$torrent_directory/}}${torrentprefix[$db]}_$(get_torrent "${db}" "${md5}").torrent"
} }
create_symlinks () { create_symlinks () {
@ -1340,21 +1302,6 @@ create_symlinks () {
exit exit
} }
# leave <br> and <pre> to enable some simple formatting tasks
strip_html () {
#echo "$*"|sed -e 's/<br>/\n/g;s/<[^>]*>//g;s/\n/<br>/g'
echo "$*"
}
is_true () {
val="${1,,}"
if [[ "${val:0:1}" == "y" || "$val" -gt 0 ]]; then
true
else
false
fi
}
check_settings () { check_settings () {
# does target directory exist? # does target directory exist?
[[ ! -d "$target_directory" ]] && exit_with_error "target_directory $target_directory does not exist"; [[ ! -d "$target_directory" ]] && exit_with_error "target_directory $target_directory does not exist";
@ -1363,7 +1310,7 @@ check_settings () {
# when defined, does torrent helper script exist? # when defined, does torrent helper script exist?
if [[ -n "$use_torrent" ]]; then if [[ -n "$use_torrent" ]]; then
if [[ -z "$torrent_tools" ]]; then if [[ -z "$torrent_tools" ]]; then
exit_with_error '-u needs torrent helper script, see $torrent_tools' exit_with_error "-u needs torrent helper script, see \$torrent_tools"
elif ! find_tool "$torrent_tools" >/dev/null; then elif ! find_tool "$torrent_tools" >/dev/null; then
exit_with_error "-u: torrent helper script ($torrent_tools) not found" exit_with_error "-u: torrent helper script ($torrent_tools) not found"
fi fi
@ -1374,33 +1321,16 @@ check_settings () {
fi fi
} }
# echo error message to stdout and terminate main cleanup () {
exit_with_error () { if [[ $ui_tool == "whiptail" ]]; then
echo -e "$(basename $0): $*" >&2 reset
fi
kill -s TERM $TOP_PID
}
trap_error () {
if [[ $ui_tool == "whiptail" ]]; then
reset
fi
exit 1
}
trap_clean () {
if [[ $ui_tool == "whiptail" ]]; then
reset
fi
exit
} }
# HELP # HELP
help () { help () {
echo $(basename $(readlink -f $0)) "version $version" echo "$(basename "$(readlink -f "$0")")" "version $version"
cat <<- 'EOF' cat <<- 'EOF'
Use: books OPTIONS [like] [<PATTERN>] Use: books OPTIONS [like] [<PATTERN>]
@ -1433,8 +1363,9 @@ help () {
SEARCH BY FIELD: SEARCH BY FIELD:
This is the default search mode. If no field options are given this searches This is the default search mode. If no field options are given this searches
the Title field for the PATTERN. Capital options (-A, -T, etc) for exact match, the Title field for the PATTERN. Search uses partial matching by default, use
lower-case (-a, -t, etc) for pattern match. -X for matching words starting with PATTERN, -XX to match words which end with
PATTERN and -XXX for exact matching.
FULLTEXT SEARCH (-f): FULLTEXT SEARCH (-f):
@ -1460,11 +1391,7 @@ help () {
EOF EOF
for key in "${!schema[@]}"; do for key in "${!schema[@]}"; do
if [ "$key" == "m" ]; then echo " -${key} search on ${schema[$key]^^}"
echo " -${key} search on ${schema[$key]^^}"
else
echo " -${key}, -${key^^} search on ${schema[$key]^^}"
fi
done done
cat <<- 'EOF' cat <<- 'EOF'
@ -1474,6 +1401,10 @@ help () {
when no other options are given this will perform a pattern match search when no other options are given this will perform a pattern match search
for the given words over the Author and Title fields. for the given words over the Author and Title fields.
-X search for fields starting with PATTERN
-XX search for fields ending with PATTERN
-XXX search for fields exacly matching PATTERN
-w preview publication info before downloading (cover preview only in GUI tools) -w preview publication info before downloading (cover preview only in GUI tools)
select one or more publication to preview and press enter/click OK. select one or more publication to preview and press enter/click OK.
@ -1538,13 +1469,13 @@ help () {
Do an exact search on the Title field for 'The Odyssey' and the Author field for 'Homer', showing Do an exact search on the Title field for 'The Odyssey' and the Author field for 'Homer', showing
the result in the terminal the result in the terminal
$ books -T 'The Odyssey' -A 'Homer' $ books -X -t 'The Odyssey' -a 'Homer'
Do the same search as above, showing the results in a list on the terminal with checkboxes to select Do the same search as above, showing the results in a list on the terminal with checkboxes to select
one or more publications for download one or more publications for download
$ nbook -T 'The Odyssey' -A 'Homer' $ nbook -X -t 'The Odyssey' -a 'Homer'
A case-insensitive pattern search using an X11-based interface; use bittorrent (-u) when downloading files A case-insensitive pattern search using an X11-based interface; use bittorrent (-u) when downloading files
@ -1578,9 +1509,9 @@ help () {
$ books -M 51b4ee7bc7eeb6ed7f164830d5d904ae -F author,title,extension $ books -M 51b4ee7bc7eeb6ed7f164830d5d904ae -F author,title,extension
Download a publication using its MD5 (-J MD5), using bittorrent (-u) to download Download a publication using its MD5 (-J MD5), using IPFS (-I y) to download
$ books -u y -J 51b4ee7bc7eeb6ed7f164830d5d904ae $ books -I y -J 51b4ee7bc7eeb6ed7f164830d5d904ae
EOF EOF
} }