238 lines
9.9 KiB
Plaintext
238 lines
9.9 KiB
Plaintext
#compdef beet
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# zsh completion for beets music library manager and MusicBrainz tagger: http://beets.radbox.org/
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# Default values for BEETS_LIBRARY & BEETS_CONFIG needed for the cache checking function.
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# They will be updated under the assumption that the config file is in the same directory as the library.
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local BEETS_LIBRARY=~/.config/beets/library.db
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local BEETS_CONFIG=~/.config/beets/config.yaml
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# Use separate caches for file locations, command completions, and query completions.
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# This allows the use of different rules for when to update each one.
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zstyle ":completion:${curcontext}:" cache-policy _beet_check_cache
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_beet_check_cache () {
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local cachefile="$(basename ${1})"
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if [[ ! -a "${1}" ]] || [[ "${1}" -ot =beet ]]; then
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# always update the cache if it doesnt exist, or if the beet executable changes
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return 0
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fi
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case cachefile; in
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(beetslibrary)
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if [[ ! -a "${~BEETS_LIBRARY}" ]] || [[ "${1}" -ot "${~BEETS_CONFIG}" ]]; then
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return 0
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fi
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;;
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(beetscmds)
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_retrieve_cache beetslibrary
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if [[ "${1}" -ot "${~BEETS_CONFIG}" ]]; then
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return 0
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fi
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;;
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esac
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return 1
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}
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# useful: argument to _regex_arguments for matching any word
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local matchany=/$'[^\0]##\0'/
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# arguments to _regex_arguments for completing files and directories
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local -a files dirs
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files=("$matchany" ':file:file:_files')
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dirs=("$matchany" ':dir:directory:_dirs')
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# Retrieve or update caches
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if ! _retrieve_cache beetslibrary || _cache_invalid beetslibrary; then
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local BEETS_LIBRARY="${$(beet config|grep library|cut -f 2 -d ' '):-${BEETS_LIBRARY}}"
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local BEETS_CONFIG="${$(beet config -p):-${BEETS_CONFIG}}"
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_store_cache beetslibrary BEETS_LIBRARY BEETS_CONFIG
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fi
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if ! _retrieve_cache beetscmds || _cache_invalid beetscmds; then
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local -a subcommands fields beets_regex_words_subcmds beets_regex_words_help query modify
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local subcmd cmddesc matchquery matchmodify field fieldargs queryelem modifyelem
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# Useful function for joining grouped lines of output into single lines (taken from _completion_helpers)
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_join_lines() {
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awk -v SEP="$1" -v ARG2="$2" -v START="$3" -v END2="$4" 'BEGIN {if(START==""){f=1}{f=0};
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if(ARG2 ~ "^[0-9]+"){LINE1 = "^[[:space:]]{,"ARG2"}[^[:space:]]"}else{LINE1 = ARG2}}
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($0 ~ END2 && f>0 && END2!="") {exit}
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($0 ~ START && f<1) {f=1; if(length(START)!=0){next}}
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($0 ~ LINE1 && f>0) {if(f<2){f=2; printf("%s",$0)}else{printf("\n%s",$0)}; next}
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(f>1) {gsub(/^[[:space:]]+|[[:space:]]+$/,"",$0); printf("%s%s",SEP, $0); next}
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END {print ""}'
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}
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# Variables used for completing subcommands and queries
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subcommands=(${${(f)"$(beet help | _join_lines ' ' 3 'Commands:')"}[@]})
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fields=($(beet fields | grep -G '^ ' | sort -u | colrm 1 2))
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for field in "${fields[@]}"
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do
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fieldargs="$fieldargs '$field:::{_beet_field_values $field}'"
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done
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queryelem="_values -S : 'query field (add an extra : to match by regexp)' '::' $fieldargs"
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modifyelem="_values -S = 'modify field (replace = with ! to remove field)' $(echo "'${^fields[@]}:: '")"
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# regexps for matching query and modify terms on the command line
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matchquery=/"(${(j/|/)fields[@]})"$':[^\0]##\0'/
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matchmodify=/"(${(j/|/)fields[@]})"$'(=[^\0]##|!)\0'/
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# create completion function for queries
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_regex_arguments _beet_query "$matchany" \# \( "$matchquery" ":query:query string:$queryelem" \) \#
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local "beets_query"="$(which _beet_query)"
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# arguments for _regex_arguments for completing lists of queries and modifications
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beets_query_args=( \( "$matchquery" ":query:query string:{_beet_query}" \) \# )
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beets_modify_args=( \( "$matchmodify" ":modify:modify string:$modifyelem" \) \# )
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# now build arguments for _beet and _beet_help completion functions
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beets_regex_words_subcmds=('(')
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for i in ${subcommands[@]}; do
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subcmd="${i[(w)1]}"
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# remove first word and parenthesised alias, replace : with -, [ with (, ] with ), and remove single quotes
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cmddesc="${${${${${i[(w)2,-1]##\(*\) #}//:/-}//\[/(}//\]/)}//\'/}"
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# update arguments needed for creating _beet
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beets_regex_words_subcmds+=(/"${subcmd}"$'\0'/ ":subcmds:subcommands:((${subcmd}:${cmddesc// /\ }))")
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beets_regex_words_subcmds+=(\( "${matchany}" ":option:option:{_beet_subcmd ${subcmd}}" \) \# \|)
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# update arguments needed for creating _beet_help
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beets_regex_words_help+=("${subcmd}:${cmddesc}")
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done
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beets_regex_words_subcmds[-1]=')'
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_store_cache beetscmds beets_regex_words_subcmds beets_regex_words_help beets_query_args beets_modify_args beets_query
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else
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# Evaluate the variable containing the query completer function
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eval "${beets_query}"
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fi
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# Function for getting unique values for field from database (you may need to change the path to the database).
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_beet_field_values() {
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local -a output fieldvals
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local sqlcmd="select distinct $1 from items;"
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_retrieve_cache beetslibrary
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case ${1}
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in
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lyrics)
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fieldvals=
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;;
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*)
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if [[ "$(sqlite3 ${~BEETS_LIBRARY} ${sqlcmd} 2>&1)" =~ "no such column" ]]; then
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sqlcmd="select distinct value from item_attributes where key=='$1' and value!='';"
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fi
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output="$(sqlite3 ${~BEETS_LIBRARY} ${sqlcmd} 2>/dev/null | sed -rn '/^-+$/,${{/^[- ]+$/n};p}')"
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fieldvals=("${(f)output[@]}")
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;;
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esac
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compadd -P \" -S \" -M 'm:{[:lower:][:upper:]}={[:upper:][:lower:]}' -Q -a fieldvals
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}
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# This function takes a beet subcommand as its first argument, and then uses _regex_words to set ${reply[@]}
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# to an array containing arguments for the _regex_arguments function.
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_beet_subcmd_options() {
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local shortopt optarg optdesc
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local matchany=/$'[^\0]##\0'/
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local -a regex_words
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regex_words=()
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for i in ${${(f)"$(beet help $1 | awk '/^ +-/{if(x)print x;x=$0;next}/^ *$/{if(x) exit}{if(x) x=x$0}END{print x}')"}[@]}
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do
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opt="${i[(w)1]/,/}"
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optarg="${${${i## #[-a-zA-Z]# }##[- ]##*}%%[, ]*}"
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optdesc="${${${${${i[(w)2,-1]/[A-Z, ]#--[-a-z]##[=A-Z]# #/}//:/-}//\[/(}//\]/)}//\'/}"
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case $optarg; in
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("")
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if [[ "$1" == "import" && "$opt" == "-L" ]]; then
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regex_words+=("$opt:$optdesc:\${beets_query_args[@]}")
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else
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regex_words+=("$opt:$optdesc")
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fi
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;;
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(LOG)
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local -a files
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files=("$matchany" ':file:file:_files')
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regex_words+=("$opt:$optdesc:\$files")
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;;
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(CONFIG)
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local -a configfile
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configfile=("$matchany" ':file:config file:{_files -g *.yaml}')
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regex_words+=("$opt:$optdesc:\$configfile")
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;;
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(LIB|LIBRARY)
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local -a libfile
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libfile=("$matchany" ':file:database file:{_files -g *.db}')
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regex_words+=("$opt:$optdesc:\$libfile")
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;;
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(DIR|DIRECTORY)
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local -a dirs
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dirs=("$matchany" ':dir:directory:_dirs')
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regex_words+=("$opt:$optdesc:\$dirs")
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;;
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(SOURCE)
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if [[ "${1}" -eq lastgenre ]]; then
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local -a lastgenresource
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lastgenresource=(/$'(artist|album|track)\0'/ ':source:genre source:(artist album track)')
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regex_words+=("$opt:$optdesc:\$lastgenresource")
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else
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regex_words+=("$opt:$optdesc:\$matchany")
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fi
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;;
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(*)
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regex_words+=("$opt:$optdesc:\$matchany")
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;;
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esac
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done
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_regex_words options "$1 options" "${regex_words[@]}"
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}
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## Function for completing subcommands. It calls another completion function which is first created if it doesn't already exist.
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_beet_subcmd() {
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local -a options
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local subcmd="${1}"
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if [[ ! $(type _beet_${subcmd} | grep function) =~ function ]]; then
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if ! _retrieve_cache "beets${subcmd}" || _cache_invalid "beets${subcmd}"; then
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local matchany=/$'[^\0]##\0'/
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local -a files
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files=("$matchany" ':file:file:_files')
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# get arguments for completing subcommand options
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_beet_subcmd_options "$subcmd"
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options=("${reply[@]}" \#)
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_retrieve_cache beetscmds
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case ${subcmd}; in
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(import)
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_regex_arguments _beet_import "${matchany}" /"${subcmd}"$'\0'/ "${options[@]}" "${files[@]}" \#
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;;
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(modify)
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_regex_arguments _beet_modify "${matchany}" /"${subcmd}"$'\0'/ "${options[@]}" \
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"${beets_query_args[@]}" "${beets_modify_args[@]}"
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;;
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(fields|migrate|version|config)
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_regex_arguments _beet_${subcmd} "${matchany}" /"${subcmd}"$'\0'/ "${options[@]}"
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;;
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(help)
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_regex_words subcmds "subcommands" "${beets_regex_words_help[@]}"
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_regex_arguments _beet_help "${matchany}" /$'help\0'/ "${options[@]}" "${reply[@]}"
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;;
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(*) # Other commands have options followed by a query
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_regex_arguments _beet_${subcmd} "${matchany}" /"${subcmd}"$'\0'/ "${options[@]}" "${beets_query_args[@]}"
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;;
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esac
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# Store completion function in a cache file
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local "beets_${subcmd}"="$(which _beet_${subcmd})"
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_store_cache "beets${subcmd}" "beets_${subcmd}"
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else
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# Evaluate the function which is stored in $beets_${subcmd}
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local var="beets_${subcmd}"
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eval "${(P)var}"
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fi
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fi
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_beet_${subcmd}
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}
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# Global options
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local -a globalopts
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_regex_words options "global options" '-c:path to configuration file:$files' '-v:print debugging information' \
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'-l:library database file to use:$files' '-h:show this help message and exit' '-d:destination music directory:$dirs'
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globalopts=("${reply[@]}")
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# Create main completion function
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_regex_arguments _beet "$matchany" \( "${globalopts[@]}" \# \) "${beets_regex_words_subcmds[@]}"
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# Set tag-order so that options are completed separately from arguments
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zstyle ":completion:${curcontext}:" tag-order '! options'
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# Execute the completion function
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_beet "$@"
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# Local Variables:
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# mode:shell-script
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# End:
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