Files
q-tools/qcd_function
2013-09-02 17:44:47 +03:00

153 lines
3.6 KiB
Plaintext

function cd_history () {
local old
local p
local b
if [ -z "$1" ]
then \cd "$HOME"
return
fi
old=$( tail -n 149 "$HOME/.bash_cdhistory" )
echo "$old" > "$HOME/.bash_cdhistory"
\cd "$1"
p=$( pwd )
b=$( basename "$p" )
echo $b":"$p >> "$HOME/.bash_cdhistory"
}
alias cd=cd_history
function qcd() {
local OPTIND
local OPTARG
local opt
local case
while getopts aiILl:hm opt
do case "$opt" in
a)
# Adding
local name=${!OPTIND}
if [ -z "$name" ]
then name=$( basename $( pwd ))
fi
echo "$name":$( pwd )
echo "$name":$( pwd ) >> ~/.qcd
return
;;
i)
case="-i"
;;
I)
echo "See ~/.bash_completion for possible duplicates"
echo '
have qcd &&
_qcd()
{
local cur
COMPREPLY=()
cur=${COMP_WORDS[COMP_CWORD]}
if [[ "$cur" == -* ]]; then
COMPREPLY=( $( compgen -W '-i -h -l -L -m ' -- $cur ) )
return 0
fi
COMPREPLY=( $( compgen -W "$( grep -h ^"$cur" ~/.qcd <( tac ~/.bash_cdhistory ) | cut -d: -f1 )" ) )
}
complete -F _qcd qcd
' >> ~/.bash_completion
return
;;
L)
echo ==History ~/.bash_cdhistory:
cat ~/.bash_cdhistory
echo
echo ==Saved ~/.qcd:
cat ~/.qcd
return
;;
l)
local d=$( grep $case -h ^"$OPTARG" ~/.qcd <( tac ~/.bash_cdhistory ) | head -n 1 )
d=${d/*:/}
echo $d
return
;;
m)
local IFS=$'\n'
for line in $( cat ~/.bash_cdhistory );
do if [ -d "${line/*:/}" ];
then echo "$line" >> ~/.bash_cdhistory.tmp
fi
done
mv ~/.bash_cdhistory.tmp ~/.bash_cdhistory
for line in $( cat ~/.qcd );
do if [ -d "${line/*:/}" ];
then echo "$line" >> ~/.qcd.tmp
fi
done
mv ~/.qcd.tmp ~/.qcd
return
;;
h)
echo 'qcd [-hiLm]|[-al] [name]
Change current working path based on the list ~/.qcd
Keeps a history of folders visited in ~/.bash_cdhistory
-a [name] Adds the path to the list
You may add the name of the path, but when omitted
the basename will be used
-i Case insensitive search, must come first.
-I Install autocompletion (use only once)
-l [name] Show the match, but do not change
-L Lists the paths
-m Maintain the list, deleting non-existing entries'
return
;;
esac
done
shift $(($OPTIND - 1))
unset OPTSTRING
unset OPTIND
if [ -z "$1" ]
then \cd; return
fi
if [ "$1" = "-" ]
then \cd -; return
fi
d=$( grep $case -h ^"$1" ~/.qcd <( tac ~/.bash_cdhistory ) | head -n 1 )
d=${d/*:/}
if [ ! -z "$d" ]
then \cd "$d"
fi
}
function whenfilechanges() {
[ -z "$1" ] && { echo 'Usage: whenfilechanges "file" "some" "command"
Follows the modification time of the "file" and runs the command
at every change. '
return
}
[ -e "$1" ] || { echo $1 not found
return
}
local fname
local otime
local ntime
fname=$1
shift 1
otime=$( stat -c %Z "$fname" )
while :
do ntime=$( stat -c %Z "$fname" )
[ "$ntime" -ne "$otime" ] && {
eval "$@"
otime=$( stat -c %Z "$fname" )
}
sleep 2
done
}