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Continuous frecency #266

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Continuous frecency #266

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dcd5541
Allow changing the max score for aging
rupa Sep 15, 2018
f95fbd1
continuous frecency
rupa Sep 12, 2018
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2 changes: 2 additions & 0 deletions README
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,8 @@ NOTES
Optionally:
Set $_Z_CMD to change the command name (default z).
Set $_Z_DATA to change the datafile (default $HOME/.z).
Set $_Z_MAX_SCORE lower to age entries out faster (default
9000).
Set $_Z_NO_RESOLVE_SYMLINKS to prevent symlink resolution.
Set $_Z_NO_PROMPT_COMMAND to handle PROMPT_COMMAND/precmd your-
self.
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3 changes: 3 additions & 0 deletions z.1
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Expand Up @@ -78,6 +78,9 @@ Set \fB$_Z_CMD\fR to change the command name (default \fBz\fR).
Set \fB$_Z_DATA\fR to change the datafile (default \fB$HOME/.z\fR).
.RE
.RS
Set \fB$_Z_MAX_SCORE\fR lower to age entries out faster (default \fB9000\fR).
.RE
.RS
Set \fB$_Z_NO_RESOLVE_SYMLINKS\fR to prevent symlink resolution.
.RE
.RS
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15 changes: 7 additions & 8 deletions z.sh
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Expand Up @@ -10,6 +10,7 @@
# * optionally:
# set $_Z_CMD in .bashrc/.zshrc to change the command (default z).
# set $_Z_DATA in .bashrc/.zshrc to change the datafile (default ~/.z).
# set $_Z_MAX_SCORE lower to age entries out faster (default 9000).
# set $_Z_NO_RESOLVE_SYMLINKS to prevent symlink resolution.
# set $_Z_NO_PROMPT_COMMAND if you're handling PROMPT_COMMAND yourself.
# set $_Z_EXCLUDE_DIRS to an array of directories to exclude.
Expand Down Expand Up @@ -62,7 +63,8 @@ _z() {

# maintain the data file
local tempfile="$datafile.$RANDOM"
_z_dirs | awk -v path="$*" -v now="$(date +%s)" -F"|" '
local score=${_Z_MAX_SCORE:-9000}
_z_dirs | awk -v path="$*" -v now="$(date +%s)" -v score=$score -F"|" '
BEGIN {
rank[path] = 1
time[path] = now
Expand All @@ -79,7 +81,7 @@ _z() {
count += $2
}
END {
if( count > 9000 ) {
if( count > score ) {
# aging
for( x in rank ) print x "|" 0.99*rank[x] "|" time[x]
} else for( x in rank ) print x "|" rank[x] "|" time[x]
Expand Down Expand Up @@ -138,12 +140,9 @@ _z() {
local cd
cd="$( < <( _z_dirs ) awk -v t="$(date +%s)" -v list="$list" -v typ="$typ" -v q="$fnd" -F"|" '
function frecent(rank, time) {
# relate frequency and time
dx = t - time
if( dx < 3600 ) return rank * 4
if( dx < 86400 ) return rank * 2
if( dx < 604800 ) return rank / 2
return rank / 4
# relate frequency and time
dx = t - time
return rank * (3.75/(0.0001 * dx + 1) + 0.25)
}
function output(matches, best_match, common) {
# list or return the desired directory
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