fish: Add z
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config/fish/functions/z.fish
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189
config/fish/functions/z.fish
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# maintains a jump-list of the directories you actually use
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#
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# INSTALL:
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# * put something like this in your config.fish:
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# . /path/to/z.fish
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# * put something like this in your fish_prompt function:
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# z --add "$PWD"
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# * cd around for a while to build up the db
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# * PROFIT!!
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#
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# USE:
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# * z foo # goes to most frecent dir matching foo
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# * z foo bar # goes to most frecent dir matching foo and bar
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# * z -r foo # goes to highest ranked dir matching foo
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# * z -t foo # goes to most recently accessed dir matching foo
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# * z -l foo # list all dirs matching foo (by frecency)
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function addzhist --on-variable PWD
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z --add "$PWD"
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end
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function z -d "Jump to a recent directory."
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set -l datafile "$HOME/.z"
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# add entries
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if [ "$argv[1]" = "--add" ]
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set -e argv[1]
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# $HOME isn't worth matching
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[ "$argv" = "$HOME" ]; and return
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set -l tempfile (command mktemp $datafile.XXXXXX)
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test -f $tempfile; or return
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# maintain the file
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command awk -v path="$argv" -v now=(date +%s) -F"|" '
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BEGIN {
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rank[path] = 1
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time[path] = now
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}
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$2 >= 1 {
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if( $1 == path ) {
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rank[$1] = $2 + 1
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time[$1] = now
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} else {
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rank[$1] = $2
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time[$1] = $3
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}
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count += $2
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}
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END {
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if( count > 1000 ) {
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for( i in rank ) print i "|" 0.9*rank[i] "|" time[i] # aging
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} else for( i in rank ) print i "|" rank[i] "|" time[i]
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}
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' $datafile ^/dev/null > $tempfile
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command mv -f $tempfile $datafile
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# tab completion
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else
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if [ "$argv[1]" = "--complete" ]
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command awk -v q="$argv[2]" -F"|" '
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BEGIN {
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if( q == tolower(q) ) nocase = 1
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split(q,fnd," ")
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}
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{
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if( system("test -d \"" $1 "\"") ) next
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if( nocase ) {
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for( i in fnd ) tolower($1) !~ tolower(fnd[i]) && $1 = ""
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if( $1 ) print $1
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} else {
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for( i in fnd ) $1 !~ fnd[i] && $1 = ""
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if( $1 ) print $1
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}
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}
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' "$datafile" 2>/dev/null
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else
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# list/go
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set -l last ''
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set -l list 0
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set -l typ ''
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set -l fnd ''
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while [ (count $argv) -gt 0 ]
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switch "$argv[1]"
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case -- '-h'
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echo "z [-h][-l][-r][-t] args" >&2
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return
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case -- '-l'
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set list 1
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case -- '-r'
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set typ "rank"
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case -- '-t'
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set typ "recent"
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case -- '--'
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while [ "$argv[1]" ]
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set -e argv[1]
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set fnd "$fnd $argv[1]"
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end
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case '*'
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set fnd "$fnd $argv[1]"
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end
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set last $1
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set -e argv[1]
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end
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[ "$fnd" ]; or set list 1
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# if we hit enter on a completion just go there
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[ -d "$last" ]; and cd "$last"; and return
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# no file yet
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[ -f "$datafile" ]; or return
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set -l tempfile (command mktemp $datafile.XXXXXX)
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test -f $tempfile; or return
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set -l target (command awk -v t=(date +%s) -v list="$list" -v typ="$typ" -v q="$fnd" -v tmpfl="$tempfile" -F"|" '
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function frecent(rank, time) {
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dx = t-time
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if( dx < 3600 ) return rank*4
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if( dx < 86400 ) return rank*2
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if( dx < 604800 ) return rank/2
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return rank/4
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}
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function output(files, toopen, override) {
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if( list ) {
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if( typ == "recent" ) {
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cmd = "sort -nr >&2"
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} else cmd = "sort -n >&2"
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for( i in files ) if( files[i] ) printf "%-10s %s\n", files[i], i | cmd
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if( override ) printf "%-10s %s\n", "common:", override > "/dev/stderr"
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} else {
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if( override ) toopen = override
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print toopen
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}
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}
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function common(matches, fnd, nc) {
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for( i in matches ) {
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if( matches[i] && (!short || length(i) < length(short)) ) short = i
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}
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if( short == "/" ) return
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for( i in matches ) if( matches[i] && i !~ short ) x = 1
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if( x ) return
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if( nc ) {
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for( i in fnd ) if( tolower(short) !~ tolower(fnd[i]) ) x = 1
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} else for( i in fnd ) if( short !~ fnd[i] ) x = 1
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if( !x ) return short
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}
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BEGIN { split(q, a, " ") }
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{
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if( system("test -d \"" $1 "\"") ) next
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print $0 >> tmpfl
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if( typ == "rank" ) {
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f = $2
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} else if( typ == "recent" ) {
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f = t-$3
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} else f = frecent($2, $3)
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wcase[$1] = nocase[$1] = f
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for( i in a ) {
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if( $1 !~ a[i] ) delete wcase[$1]
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if( tolower($1) !~ tolower(a[i]) ) delete nocase[$1]
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}
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if( wcase[$1] > oldf ) {
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cx = $1
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oldf = wcase[$1]
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} else if( nocase[$1] > noldf ) {
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ncx = $1
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noldf = nocase[$1]
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}
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}
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END {
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if( cx ) {
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output(wcase, cx, common(wcase, a, 0))
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} else if( ncx ) output(nocase, ncx, common(nocase, a, 1))
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}
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' "$datafile")
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if [ $status -gt 0 ]
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command rm -f "$tempfile"
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else
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command mv -f "$tempfile" "$datafile"
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[ "$target" ]; and cd "$target"
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end
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end
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end
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end
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