twidge-sh

#!/bin/bash
# twidge-sh: customized interactive twidge shell
# Copyright: (C) 2010 Florian Baumann <flo@noqqe.de>
# License: GPL-3 <http://www.gnu.org/licenses/gpl-3.0.txt>
# Date: Monday 2010-10-04


### initial settings & security ###############################################
# need some general security checks and generate settings
#
# get config if available
if [ -r $HOME/.twidgerc ]; then
    twidgerc=$HOME/.twidgerc
else
    echo "$HOME/.twidgerc not found!"
    echo "try: 'twidge setup' to fix it."
    exit
fi

# check username
if ! grep -q "screen_name" $twidgerc ; then
    echo "error by getting username from $twidgerc"; exit 1
fi

# check service
if ! grep -q -e "^urlbase:.*$" $twidgerc ; then
    echo "error by getting microblogging-service from $twidgerc"; exit 1
fi

# create new shell with specific config
[ "$0" = 'bash' ] || exec /usr/bin/env bash --rcfile "$0" "$@"

# include user's .bashrc file
[ -r ~/.bashrc ] && {
    pushd ~ > /dev/null
    . .bashrc
    popd > /dev/null
}

### completion and aliases ####################################################
# read standard commands and create aliases for new prompt
# defined aliases will automatically be completed
# usage:
# user@twitter> lsrecent
#
for x in $(twidge lscommands | tail --lines=+4 | cut -f1 -d' '| grep "^$cur")
do
    alias $x="twidge $x"
done

# read local aliases in .twidgerc
# for example:
# [alias]
# recent: lsrecent -u
# replies: lsreplies -u
#
OLDIFS=$IFS; IFS=$'\n'
for y in $(cat $twidgerc | sed -n -e '/\[alias\]/,/\[.*\]/s/:/:/p')
do
    key=$(echo $y | cut -d : -f 1)
    command=$(echo $y | cut -d : -f 2-)
    alias ${key}="twidge $command"
done
IFS=$OLDIFS

# display commands by "help"
alias help="twidge lscommands"

### customized prompt #########################################################
# create microblogging prompt
# for example: user@twitter>
#
PS1='$(get_user)@$(get_services)> '

# get username from config
get_user() {
    if fgrep -q "screen_name" $twidgerc ; then
        fgrep "screen_name" $twidgerc | cut -d \" -f 8
    elif fgrep -q "username:" $twidgerc; then
        fgrep "username:" | awk '{print $NF}'
    fi
}

# get configured service for prompt
get_services() {
    if grep -q -e "^urlbase:.*twitter.com$" $twidgerc; then
        echo "twitter"
    elif grep -q -e "^urlbase:.*identi.ca$" $twidgerc; then
        echo "identica"
    fi
}