#!/bin/sh
# dm 0.9 - Directory Manager
# (Instructions below the license)
# LICENSE
# Copyright (C) 2007 LluĂs Batlle i Rossell
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# Instructions:
# 'dm' will manage a list of id-directory. 'dmcd' will allow the current shell
# to change to the directory given by 'id'.
#
# Examples:
# $ dm 1 /tmp # Adds the id '1' for /tmp
# $ dm 2 . # Adds the id '2' for the current dir
# $ dmcd 1 # Goes to /tmp
# $ dmcd 2 # Goes to what was your current dir
# $ dm -d 2 # Deletes the entry for '2'.
# $ dm # Shows your 'database'
# 1 /tmp
# $ dm -h # Shows help, and defines 'dmcd' for sh.
#
# In order to use 'dmcd', you should define the function
# given by "dm -h" in your shell. Put it in your bashrc or
# a file like that.
#
# Your directory database is stored in ~/.dm .
function showdirs
{
if [ -f ~/.dm ] ; then
cat ~/.dm | sort
fi
}
function testdir
{
if [ "$1x" == "x" ]; then
echo "Error: You should specify an alias for a directory." 1>&2
return 1
fi
if [ -f ~/.dm ] ; then
grep "^$1 " ~/.dm > /dev/null 2> /dev/null
if [ $? -ne 0 ]; then
echo "Error: There is no directory for '$1'" 1>&2
return 1
fi
else
echo "Error: There is no directory for '$1'" 1>&2
return 1
fi
}
function deldir
{
# Remove the old def
if [ -f ~/.dm ] ; then
sed -i "/^$1\t/d" ~/.dm
fi
}
function setdir
{
# Remove the old def
deldir $1
NEWDIR=`getpath "$2"`
# Add new
echo "$1 $NEWDIR" >> ~/.dm
}
function getdir
{
if [ -f ~/.dm ] ; then
grep "^$1 " ~/.dm | sed 's/^[^\t]*\t//'
else
return 1
fi
}
function showhelp
{
echo "usage: $0 [ -l | -d id | -t id | id | id newdir ]"
echo 'For sh: function dmcd { dm -t $1 && cd `dm $1`; }'
}
function getpath
{
OLD=`pwd`
cd "$1"
pwd
cd "$OLD"
}
# dm -t $1 && cd `dm $1`
if [ $# -lt 1 ]; then
showdirs
elif [ $1 == "-l" ]; then
showdirs
elif [ $1 == "-h" ]; then
showhelp
elif [ $1 == "-d" ]; then
deldir $2
elif [ $1 == "-t" ]; then
testdir $2
elif [ $# -eq 2 ]; then
setdir $1 $2
elif [ $# -eq 1 ]; then
getdir $1
fi