mirror of
https://github.com/ohmyzsh/ohmyzsh.git
synced 2024-09-19 04:01:21 +02:00
Merge pull request #2510 from pavoljuhas/master
Add scd plugin for smart change of directory.
This commit is contained in:
Robby Russell
commit
e7420736db
3 changed files with 494 additions and 0 deletions
122
plugins/scd/README.md
Normal file
122
plugins/scd/README.md
Normal file
|
|
@ -0,0 +1,122 @@
|
|||
# scd - smart change of directory
|
||||
|
||||
Define `scd` shell function for changing to any directory with
|
||||
a few keystrokes.
|
||||
|
||||
`scd` keeps history of the visited directories, which serves as an index of
|
||||
the known paths. The directory index is updated after every `cd` command in
|
||||
the shell and can be also filled manually by running `scd -a`. To switch to
|
||||
some directory, `scd` needs few fragments of the desired path to match with
|
||||
the index. A selection menu is displayed in case of several matches, with a
|
||||
preference given to recently visited paths. `scd` can create permanent
|
||||
directory aliases, which appear as named directories in zsh session.
|
||||
|
||||
## INSTALLATION
|
||||
|
||||
For oh-my-zsh, add `scd` to the `plugins` array in the ~/.zshrc file as in the
|
||||
[template file](../../templates/zshrc.zsh-template#L45).
|
||||
|
||||
Besides zsh, `scd` can be used with *bash*, *dash* or *tcsh*
|
||||
shells and is also available as [Vim](http://www.vim.org/) plugin and
|
||||
[IPython](http://ipython.org/) extension. For installation details, see
|
||||
https://github.com/pavoljuhas/smart-change-directory.
|
||||
|
||||
## SYNOPSIS
|
||||
|
||||
```sh
|
||||
scd [options] [pattern1 pattern2 ...]
|
||||
```
|
||||
|
||||
## OPTIONS
|
||||
|
||||
<dl><dt>
|
||||
-a, --add</dt><dd>
|
||||
add specified directories to the directory index.</dd><dt>
|
||||
|
||||
--unindex</dt><dd>
|
||||
remove specified directories from the index.</dd><dt>
|
||||
|
||||
-r, --recursive</dt><dd>
|
||||
apply options <em>--add</em> or <em>--unindex</em> recursively.</dd><dt>
|
||||
|
||||
--alias=ALIAS</dt><dd>
|
||||
create alias for the current or specified directory and save it to
|
||||
<em>~/.scdalias.zsh</em>.</dd><dt>
|
||||
|
||||
--unalias</dt><dd>
|
||||
remove ALIAS definition for the current or specified directory from
|
||||
<em>~/.scdalias.zsh</em>.</dd><dt>
|
||||
|
||||
--list</dt><dd>
|
||||
show matching directories and exit.</dd><dt>
|
||||
|
||||
-v, --verbose</dt><dd>
|
||||
display directory rank in the selection menu.</dd><dt>
|
||||
|
||||
-h, --help</dt><dd>
|
||||
display this options summary and exit.</dd>
|
||||
</dl>
|
||||
|
||||
## Examples
|
||||
|
||||
```sh
|
||||
# Index recursively some paths for the very first run
|
||||
scd -ar ~/Documents/
|
||||
|
||||
# Change to a directory path matching "doc"
|
||||
scd doc
|
||||
|
||||
# Change to a path matching all of "a", "b" and "c"
|
||||
scd a b c
|
||||
|
||||
# Change to a directory path that ends with "ts"
|
||||
scd "ts(#e)"
|
||||
|
||||
# Show selection menu and ranking of 20 most likely directories
|
||||
scd -v
|
||||
|
||||
# Alias current directory as "xray"
|
||||
scd --alias=xray
|
||||
|
||||
# Jump to a previously defined aliased directory
|
||||
scd xray
|
||||
```
|
||||
|
||||
# FILES
|
||||
|
||||
<dl><dt>
|
||||
~/.scdhistory</dt><dd>
|
||||
time-stamped index of visited directories.</dd><dt>
|
||||
|
||||
~/.scdalias.zsh</dt><dd>
|
||||
scd-generated definitions of directory aliases.</dd>
|
||||
</dl>
|
||||
|
||||
# ENVIRONMENT
|
||||
|
||||
<dl><dt>
|
||||
SCD_HISTFILE</dt><dd>
|
||||
path to the scd index file (by default ~/.scdhistory).</dd><dt>
|
||||
|
||||
SCD_HISTSIZE</dt><dd>
|
||||
maximum number of entries in the index (5000). Index is trimmed when it
|
||||
exceeds <em>SCD_HISTSIZE</em> by more than 20%.</dd><dt>
|
||||
|
||||
SCD_MENUSIZE</dt><dd>
|
||||
maximum number of items for directory selection menu (20).</dd><dt>
|
||||
|
||||
SCD_MEANLIFE</dt><dd>
|
||||
mean lifetime in seconds for exponential decay of directory
|
||||
likelihood (86400).</dd><dt>
|
||||
|
||||
SCD_THRESHOLD</dt><dd>
|
||||
threshold for cumulative directory likelihood. Directories with
|
||||
a lower likelihood compared to the best match are excluded (0.005).
|
||||
</dd><dt>
|
||||
|
||||
SCD_SCRIPT</dt><dd>
|
||||
command script file where scd writes the final <code>cd</code>
|
||||
command. This variable must be defined when scd runs in its own
|
||||
process rather than as a shell function. It is up to the
|
||||
scd caller to use the output in <em>SCD_SCRIPT</em>.</dd>
|
||||
</dl>
|
||||
353
plugins/scd/scd
Executable file
353
plugins/scd/scd
Executable file
|
|
@ -0,0 +1,353 @@
|
|||
#!/bin/zsh -f
|
||||
|
||||
emulate -L zsh
|
||||
local EXIT=return
|
||||
if [[ $(whence -w $0) == *:' 'command ]]; then
|
||||
emulate -R zsh
|
||||
local RUNNING_AS_COMMAND=1
|
||||
EXIT=exit
|
||||
fi
|
||||
|
||||
local DOC='scd -- smart change to a recently used directory
|
||||
usage: scd [options] [pattern1 pattern2 ...]
|
||||
Go to a directory path that contains all fixed string patterns. Prefer
|
||||
recently visited directories and directories with patterns in their tail
|
||||
component. Display a selection menu in case of multiple matches.
|
||||
|
||||
Options:
|
||||
-a, --add add specified directories to the directory index
|
||||
--unindex remove specified directories from the index
|
||||
-r, --recursive apply options --add or --unindex recursively
|
||||
--alias=ALIAS create alias for the current or specified directory and
|
||||
store it in ~/.scdalias.zsh
|
||||
--unalias remove ALIAS definition for the current or specified
|
||||
directory from ~/.scdalias.zsh
|
||||
--list show matching directories and exit
|
||||
-v, --verbose display directory rank in the selection menu
|
||||
-h, --help display this message and exit
|
||||
'
|
||||
|
||||
local SCD_HISTFILE=${SCD_HISTFILE:-${HOME}/.scdhistory}
|
||||
local SCD_HISTSIZE=${SCD_HISTSIZE:-5000}
|
||||
local SCD_MENUSIZE=${SCD_MENUSIZE:-20}
|
||||
local SCD_MEANLIFE=${SCD_MEANLIFE:-86400}
|
||||
local SCD_THRESHOLD=${SCD_THRESHOLD:-0.005}
|
||||
local SCD_SCRIPT=${RUNNING_AS_COMMAND:+$SCD_SCRIPT}
|
||||
local SCD_ALIAS=~/.scdalias.zsh
|
||||
|
||||
local ICASE a d m p i tdir maxrank threshold
|
||||
local opt_help opt_add opt_unindex opt_recursive opt_verbose
|
||||
local opt_alias opt_unalias opt_list
|
||||
local -A drank dalias
|
||||
local dmatching
|
||||
local last_directory
|
||||
|
||||
setopt extendedhistory extendedglob noautonamedirs brace_ccl
|
||||
|
||||
# If SCD_SCRIPT is defined make sure the file exists and is empty.
|
||||
# This removes any previous old commands.
|
||||
[[ -n "$SCD_SCRIPT" ]] && [[ -s $SCD_SCRIPT || ! -f $SCD_SCRIPT ]] && (
|
||||
umask 077
|
||||
: >| $SCD_SCRIPT
|
||||
)
|
||||
|
||||
# process command line options
|
||||
zmodload -i zsh/zutil
|
||||
zmodload -i zsh/datetime
|
||||
zparseopts -D -- a=opt_add -add=opt_add -unindex=opt_unindex \
|
||||
r=opt_recursive -recursive=opt_recursive \
|
||||
-alias:=opt_alias -unalias=opt_unalias -list=opt_list \
|
||||
v=opt_verbose -verbose=opt_verbose h=opt_help -help=opt_help \
|
||||
|| $EXIT $?
|
||||
|
||||
if [[ -n $opt_help ]]; then
|
||||
print $DOC
|
||||
$EXIT
|
||||
fi
|
||||
|
||||
# load directory aliases if they exist
|
||||
[[ -r $SCD_ALIAS ]] && source $SCD_ALIAS
|
||||
|
||||
# works faster than the (:a) modifier and is compatible with zsh 4.2.6
|
||||
_scd_Y19oug_abspath() {
|
||||
set -A $1 ${(ps:\0:)"$(
|
||||
unfunction -m "*"; shift
|
||||
for d; do
|
||||
cd $d && print -Nr -- $PWD && cd $OLDPWD
|
||||
done
|
||||
)"}
|
||||
}
|
||||
|
||||
# define directory alias
|
||||
if [[ -n $opt_alias ]]; then
|
||||
if [[ -n $1 && ! -d $1 ]]; then
|
||||
print -u2 "'$1' is not a directory."
|
||||
$EXIT 1
|
||||
fi
|
||||
a=${opt_alias[-1]#=}
|
||||
_scd_Y19oug_abspath d ${1:-$PWD}
|
||||
# alias in the current shell, update alias file if successful
|
||||
hash -d -- $a=$d &&
|
||||
(
|
||||
umask 077
|
||||
hash -dr
|
||||
[[ -r $SCD_ALIAS ]] && source $SCD_ALIAS
|
||||
hash -d -- $a=$d
|
||||
hash -dL >| $SCD_ALIAS
|
||||
)
|
||||
$EXIT $?
|
||||
fi
|
||||
|
||||
# undefine directory alias
|
||||
if [[ -n $opt_unalias ]]; then
|
||||
if [[ -n $1 && ! -d $1 ]]; then
|
||||
print -u2 "'$1' is not a directory."
|
||||
$EXIT 1
|
||||
fi
|
||||
_scd_Y19oug_abspath a ${1:-$PWD}
|
||||
a=$(print -rD ${a})
|
||||
if [[ $a != [~][^/]## ]]; then
|
||||
$EXIT
|
||||
fi
|
||||
a=${a#[~]}
|
||||
# unalias in the current shell, update alias file if successful
|
||||
if unhash -d -- $a 2>/dev/null && [[ -r $SCD_ALIAS ]]; then
|
||||
(
|
||||
umask 077
|
||||
hash -dr
|
||||
source $SCD_ALIAS
|
||||
unhash -d -- $a 2>/dev/null &&
|
||||
hash -dL >| $SCD_ALIAS
|
||||
)
|
||||
fi
|
||||
$EXIT $?
|
||||
fi
|
||||
|
||||
# Rewrite directory index if it is at least 20% oversized
|
||||
if [[ -s $SCD_HISTFILE ]] && \
|
||||
(( $(wc -l <$SCD_HISTFILE) > 1.2 * $SCD_HISTSIZE )); then
|
||||
m=( ${(f)"$(<$SCD_HISTFILE)"} )
|
||||
print -lr -- ${m[-$SCD_HISTSIZE,-1]} >| ${SCD_HISTFILE}
|
||||
fi
|
||||
|
||||
# Determine the last recorded directory
|
||||
if [[ -s ${SCD_HISTFILE} ]]; then
|
||||
last_directory=${"$(tail -1 ${SCD_HISTFILE})"#*;}
|
||||
fi
|
||||
|
||||
# Internal functions are prefixed with "_scd_Y19oug_".
|
||||
# The "record" function adds its arguments to the directory index.
|
||||
_scd_Y19oug_record() {
|
||||
while [[ -n $last_directory && $1 == $last_directory ]]; do
|
||||
shift
|
||||
done
|
||||
if [[ $# -gt 0 ]]; then
|
||||
( umask 077
|
||||
p=": ${EPOCHSECONDS}:0;"
|
||||
print -lr -- ${p}${^*} >>| $SCD_HISTFILE )
|
||||
fi
|
||||
}
|
||||
|
||||
if [[ -n $opt_add ]]; then
|
||||
for d; do
|
||||
if [[ ! -d $d ]]; then
|
||||
print -u2 "Directory '$d' does not exist."
|
||||
$EXIT 2
|
||||
fi
|
||||
done
|
||||
_scd_Y19oug_abspath m ${*:-$PWD}
|
||||
_scd_Y19oug_record $m
|
||||
if [[ -n $opt_recursive ]]; then
|
||||
for d in $m; do
|
||||
print -n "scanning ${d} ... "
|
||||
_scd_Y19oug_record ${d}/**/*(-/N)
|
||||
print "[done]"
|
||||
done
|
||||
fi
|
||||
$EXIT
|
||||
fi
|
||||
|
||||
# take care of removing entries from the directory index
|
||||
if [[ -n $opt_unindex ]]; then
|
||||
if [[ ! -s $SCD_HISTFILE ]]; then
|
||||
$EXIT
|
||||
fi
|
||||
# expand existing directories in the argument list
|
||||
for i in {1..$#}; do
|
||||
if [[ -d ${argv[i]} ]]; then
|
||||
_scd_Y19oug_abspath d ${argv[i]}
|
||||
argv[i]=${d}
|
||||
fi
|
||||
done
|
||||
m="$(awk -v recursive=${opt_recursive} '
|
||||
BEGIN {
|
||||
for (i = 2; i < ARGC; ++i) {
|
||||
argset[ARGV[i]] = 1;
|
||||
delete ARGV[i];
|
||||
}
|
||||
}
|
||||
1 {
|
||||
d = $0; sub(/^[^;]*;/, "", d);
|
||||
if (d in argset) next;
|
||||
}
|
||||
recursive {
|
||||
for (a in argset) {
|
||||
if (substr(d, 1, length(a) + 1) == a"/") next;
|
||||
}
|
||||
}
|
||||
{ print $0 }
|
||||
' $SCD_HISTFILE ${*:-$PWD} )" || $EXIT $?
|
||||
: >| ${SCD_HISTFILE}
|
||||
[[ ${#m} == 0 ]] || print -r -- $m >> ${SCD_HISTFILE}
|
||||
$EXIT
|
||||
fi
|
||||
|
||||
# The "action" function is called when there is just one target directory.
|
||||
_scd_Y19oug_action() {
|
||||
cd $1 || return $?
|
||||
if [[ -z $SCD_SCRIPT && -n $RUNNING_AS_COMMAND ]]; then
|
||||
print -u2 "Warning: running as command with SCD_SCRIPT undefined."
|
||||
fi
|
||||
if [[ -n $SCD_SCRIPT ]]; then
|
||||
print -r "cd ${(q)1}" >| $SCD_SCRIPT
|
||||
fi
|
||||
}
|
||||
|
||||
# Match and rank patterns to the index file
|
||||
# set global arrays dmatching and drank
|
||||
_scd_Y19oug_match() {
|
||||
## single argument that is an existing directory or directory alias
|
||||
if [[ $# == 1 ]] && \
|
||||
[[ -d ${d::=$1} || -d ${d::=${nameddirs[$1]}} ]] && [[ -x $d ]];
|
||||
then
|
||||
_scd_Y19oug_abspath dmatching $d
|
||||
drank[${dmatching[1]}]=1
|
||||
return
|
||||
fi
|
||||
|
||||
# ignore case unless there is an argument with an uppercase letter
|
||||
[[ "$*" == *[[:upper:]]* ]] || ICASE='(#i)'
|
||||
|
||||
# calculate rank of all directories in the SCD_HISTFILE and keep it as drank
|
||||
# include a dummy entry for splitting of an empty string is buggy
|
||||
[[ -s $SCD_HISTFILE ]] && drank=( ${(f)"$(
|
||||
print -l /dev/null -10
|
||||
<$SCD_HISTFILE \
|
||||
awk -v epochseconds=$EPOCHSECONDS -v meanlife=$SCD_MEANLIFE '
|
||||
BEGIN { FS = "[:;]"; }
|
||||
length($0) < 4096 && $2 > 0 {
|
||||
tau = 1.0 * ($2 - epochseconds) / meanlife;
|
||||
if (tau < -4.61) tau = -4.61;
|
||||
prec = exp(tau);
|
||||
sub(/^[^;]*;/, "");
|
||||
if (NF) ptot[$0] += prec;
|
||||
}
|
||||
END { for (di in ptot) { print di; print ptot[di]; } }'
|
||||
)"}
|
||||
)
|
||||
unset "drank[/dev/null]"
|
||||
|
||||
# filter drank to the entries that match all arguments
|
||||
for a; do
|
||||
p=${ICASE}"*${a}*"
|
||||
drank=( ${(kv)drank[(I)${~p}]} )
|
||||
done
|
||||
|
||||
# build a list of matching directories reverse-sorted by their probabilities
|
||||
dmatching=( ${(f)"$(
|
||||
for d p in ${(kv)drank}; do
|
||||
print -r -- "$p $d";
|
||||
done | sort -grk1 | cut -d ' ' -f 2-
|
||||
)"}
|
||||
)
|
||||
|
||||
# if some directory paths match all patterns in order, discard all others
|
||||
p=${ICASE}"*${(j:*:)argv}*"
|
||||
m=( ${(M)dmatching:#${~p}} )
|
||||
[[ -d ${m[1]} ]] && dmatching=( $m )
|
||||
# if some directory names match last pattern, discard all others
|
||||
p=${ICASE}"*${(j:*:)argv}[^/]#"
|
||||
m=( ${(M)dmatching:#${~p}} )
|
||||
[[ -d ${m[1]} ]] && dmatching=( $m )
|
||||
# if some directory names match all patterns, discard all others
|
||||
m=( $dmatching )
|
||||
for a; do
|
||||
p=${ICASE}"*/[^/]#${a}[^/]#"
|
||||
m=( ${(M)m:#${~p}} )
|
||||
done
|
||||
[[ -d ${m[1]} ]] && dmatching=( $m )
|
||||
# if some directory names match all patterns in order, discard all others
|
||||
p=${ICASE}"/*${(j:[^/]#:)argv}[^/]#"
|
||||
m=( ${(M)dmatching:#${~p}} )
|
||||
[[ -d ${m[1]} ]] && dmatching=( $m )
|
||||
|
||||
# do not match $HOME or $PWD when run without arguments
|
||||
if [[ $# == 0 ]]; then
|
||||
dmatching=( ${dmatching:#(${HOME}|${PWD})} )
|
||||
fi
|
||||
|
||||
# keep at most SCD_MENUSIZE of matching and valid directories
|
||||
m=( )
|
||||
for d in $dmatching; do
|
||||
[[ ${#m} == $SCD_MENUSIZE ]] && break
|
||||
[[ -d $d && -x $d ]] && m+=$d
|
||||
done
|
||||
dmatching=( $m )
|
||||
|
||||
# find the maximum rank
|
||||
maxrank=0.0
|
||||
for d in $dmatching; do
|
||||
[[ ${drank[$d]} -lt maxrank ]] || maxrank=${drank[$d]}
|
||||
done
|
||||
|
||||
# discard all directories below the rank threshold
|
||||
threshold=$(( maxrank * SCD_THRESHOLD ))
|
||||
dmatching=( ${^dmatching}(Ne:'(( ${drank[$REPLY]} >= threshold ))':) )
|
||||
}
|
||||
|
||||
_scd_Y19oug_match $*
|
||||
|
||||
## process whatever directories that remained
|
||||
if [[ ${#dmatching} == 0 ]]; then
|
||||
print -u2 "No matching directory."
|
||||
$EXIT 1
|
||||
fi
|
||||
|
||||
## build formatted directory aliases for selection menu or list display
|
||||
for d in $dmatching; do
|
||||
if [[ -n ${opt_verbose} ]]; then
|
||||
dalias[$d]=$(printf "%.3g %s" ${drank[$d]} $d)
|
||||
else
|
||||
dalias[$d]=$(print -Dr -- $d)
|
||||
fi
|
||||
done
|
||||
|
||||
## process the --list option
|
||||
if [[ -n $opt_list ]]; then
|
||||
for d in $dmatching; do
|
||||
print -r -- "# ${dalias[$d]}"
|
||||
print -r -- $d
|
||||
done
|
||||
$EXIT
|
||||
fi
|
||||
|
||||
## process single directory match
|
||||
if [[ ${#dmatching} == 1 ]]; then
|
||||
_scd_Y19oug_action $dmatching
|
||||
$EXIT $?
|
||||
fi
|
||||
|
||||
## here we have multiple matches - display selection menu
|
||||
a=( {a-z} {A-Z} )
|
||||
p=( )
|
||||
for i in {1..${#dmatching}}; do
|
||||
[[ -n ${a[i]} ]] || break
|
||||
p+="${a[i]}) ${dalias[${dmatching[i]}]}"
|
||||
done
|
||||
|
||||
print -c -r -- $p
|
||||
|
||||
if read -s -k 1 d && [[ ${i::=${a[(I)$d]}} -gt 0 ]]; then
|
||||
_scd_Y19oug_action ${dmatching[i]}
|
||||
$EXIT $?
|
||||
fi
|
||||
19
plugins/scd/scd.plugin.zsh
Normal file
19
plugins/scd/scd.plugin.zsh
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
## The scd script should autoload as a shell function.
|
||||
autoload scd
|
||||
|
||||
|
||||
## If the scd function exists, define a change-directory-hook function
|
||||
## to record visited directories in the scd index.
|
||||
if [[ ${+functions[scd]} == 1 ]]; then
|
||||
scd_chpwd_hook() { scd --add $PWD }
|
||||
autoload add-zsh-hook
|
||||
add-zsh-hook chpwd scd_chpwd_hook
|
||||
fi
|
||||
|
||||
|
||||
## Allow scd usage with unquoted wildcard characters such as "*" or "?".
|
||||
alias scd='noglob scd'
|
||||
|
||||
|
||||
## Load the directory aliases created by scd if any.
|
||||
if [[ -s ~/.scdalias.zsh ]]; then source ~/.scdalias.zsh; fi
|
||||
Loading…
Reference in a new issue