538 lines
17 KiB
Plaintext
538 lines
17 KiB
Plaintext
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#!/bin/bash
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_name="txtsh"
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_author="mio"
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_desc="(t[e^]kst\"ish), n. a Bash shell client for twtxt, a microblogging \
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service."
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_version="0.3"
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_moddate="2017-03-05"
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_license="BSD-3"
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# Defaults
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_def_conf="$HOME/.config/$_name/config"
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# Config options
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_options=(\
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"nick = user" \
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"twtfile = $HOME/.config/$_name/twtxt.txt" \
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"twturl = https://example.tld/twtxt.txt" \
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"check_following = True" \
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"use_pager = False" \
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"porcelain = False" \
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"disclose_identity = False" \
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"character_limit = 140" \
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"character_warning = 140" \
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"limit_timeline = 20" \
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"timeout = 5.0" \
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"sorting = descending" \
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"pre_tweet_hook = \"\"" \
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"post_tweet_hook = \"\"" \
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# The options below are not part of twtxt spec
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"character_limit_on = True" \
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"character_warning_on = True" \
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"limit_search = 20" \
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"editor = vi" \
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)
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_registries=(\
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"https://registry.twtxt.org/api/plain/" \
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)
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# (Formatting) Unicode symbols and ANSI escape codes
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_fmt_mkr="🞚 "
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_fmt_url="⛺ "
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_fmt_date="⌚ "
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_fmt_bold="\033[1m"
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_fmt_reset="\033[0m"
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_fmt_ts="+%Y-%m-%d %H:%M %Z"
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# Create config and data files
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create_config() {
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mkdir -p "$(dirname $_def_conf)"
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# Replace default values with user input
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if [ -n "$1" ]; then _options[0]="nick = $1"
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else _options[0]="nick = $(whoami)"; fi
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if [ -n "$2" ]; then _options[1]="twtfile = $2"; fi
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if [ -n "$3" ]; then _options[2]="twturl = $3"; fi
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# Output config
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echo -e "[twtxt]" > $_def_conf
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for opt in "${_options[@]}"; do
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echo -e "$opt" >> $_def_conf
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done
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echo -e "\n[following]\n\n[registries]" >> $_def_conf
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for opt in "${_registries[@]}"; do
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echo -e "$opt" >> $_def_conf
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done
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# Create twtfile if it doesn't exist
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if [ ! -f "${_options[1]/* = /}" ]; then
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mkdir -p "$(dirname ${_options[1]/* = /})"
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touch "${_options[1]/* = /}"
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fi
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}
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# Load config file
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load_config() {
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if [ ! -f $_def_conf ]; then
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echo -e "Error: no config file found. Try running \
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\"$_name quickstart\" first."; exit 1
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else
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# Load config into array
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local old_ifs=$IFS
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local csection
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readarray buffer < $_def_conf
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IFS=$'\n'
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for line in ${buffer[@]}; do
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case "$line" in
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\[twtxt\]) csection="twtxt";;
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\[following\]) csection="following";;
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\[registries\]) csection="registries";;
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esac
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# Store followings and registries in one variable each
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if [ "$csection" = "following" ] && \
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[ ! "$line" = "[following]" ]; then
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following="${following}$line\n"
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fi
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if [ "$csection" = "registries" ] && \
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[ ! "$line" = "[registries]" ]; then
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registries=("${registries[@]}" "$line")
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fi
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# Set variables for the other options
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if [ -n "$line" ] && [[ ! "$line" =~ "[" ]] && \
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[ ! "$csection" = "following" ] && \
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[ ! "$csection" = "registries" ]; then
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# if: user config value is empty, reset to default value
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# else: assign value
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if [[ "${line/* = /}" =~ "=" || -z "${line/* = /}" ]] && \
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[ "$csection" = "twtxt" ]; then
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for opt in "${_options[@]}"; do
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if [[ "$opt" =~ "${line/ */}" ]]; then
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eval "${opt/ = */}=${opt/* = /}"
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fi
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done
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else
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eval "${line/ = */}=${line/* = /}"
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fi
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fi
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done
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IFS=$old_ifs
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fi
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}
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# Edit config values
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edit_config() {
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if [ -z "$1" ]; then
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echo -e "Please specify a setting and value."; exit 1
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elif [ -n "$1" ] && [ -n "$2" ]; then
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# Edit values
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load_config
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case "$1" in
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nick) sed -i "s|nick = $nick|nick = $2|" $_def_conf;;
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twtfile) sed -i "s|twtfile = $twtfile|twtfile = $2|" $_def_conf;;
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twturl) sed -i "s|twturl = $twturl|twturl = $twturl|" $_def_conf;;
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*) echo -e "See \"$_name config\" for options."
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esac
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else
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# Output current values
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load_config
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case "$1" in
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nick) echo -e "$nick";;
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twtfile) echo -e "$twtfile";;
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twturl) echo -e "$twturl";;
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edit) eval $editor "$_def_conf";;
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*) cat $_def_conf;;
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esac
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fi
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}
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# Wrap curl commands with presets
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# to manage flags for all outgoing requests
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curlp() {
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local ccmd="curl -L -s --connect-timeout $timeout"
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# Include user-agent string with outgoing requests if enabled
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if [ "$disclose_identity" = "True" ]; then
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ccmd="${ccmd} -A $_name (twtxt)/$_version (+$twturl; @$nick)"
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fi
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case $1 in
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post) echo -e "$($ccmd -X POST $2)";;
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src) echo -e "$($ccmd $2)";;
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status) echo -e $($ccmd -I $2 | head -n 1 | cut -f 2 -d " ");;
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esac
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}
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# Format a string containing twtxt data for display
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format_twdata() {
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local tdata ts twt
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local old_ifs=$IFS
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# Limit number of results and sort order
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case $1 in
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search)
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tdata=`echo -e "$2" | tail -n $limit_search`
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if [ "$sorting" = "descending" ]; then
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tdata=$(echo -e "$tdata" | sort -r)
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fi;;
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timeline*)
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tdata=`echo -e "$2" | tail -n $limit_timeline`
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if [ "$sorting" = "descending" ]; then
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tdata=$(echo -e "$tdata" | sort -r)
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fi;;
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esac
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# Display data
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# Porcelain view
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if [ "$porcelain" = "True" ]; then
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echo -e "$tdata"; exit 0
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fi
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# Formatted view
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IFS=$'\n'
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for item in ${tdata[@]}; do
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case $1 in
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search|timeline)
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# Format: nick, twturl, timestamp, tweet
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# Disable ANSI codes when use_pager is enabled
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if [ "$use_pager" = "True" ]; then
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_fmt_bold=""; _fmt_reset=""
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fi
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# Format fields
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ts=$(echo ${item} | cut -f 3)
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echo -e $_fmt_mkr${_fmt_bold}$(echo ${item} | cut -f 1)\
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${_fmt_reset}
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echo -e $_fmt_url$(echo ${item} | cut -f 2)
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echo -e $_fmt_date$(date -d$ts $_fmt_ts)
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twt=`echo ${item} | cut -f 4`
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if [ "$character_limit_on" = "True" ] && \
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[ ${#twt} -gt $character_limit ]; then
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twt=$(echo -e "$twt" | cut -c 1-$character_limit)
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fi
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# Check tweet is not empty string
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# e.g. user search has no tweets
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if [ -z "$twt" ]; then echo "";
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else echo -e $twt"\n"; fi;;
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timeline_me)
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# Format: timestamp, tweet
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ts=$(echo ${item} | cut -f 1)
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echo -e $_fmt_date$(date -d$ts $_fmt_ts)
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echo -e $(echo ${item} | cut -f 2)"\n";;
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esac
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done
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IFS=$old_ifs
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}
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# Check for pager before output if available and enabled
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# Takes data formatting type and twtxt data string as inputs
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output_twdata() {
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local fdata
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local if_pager=`whereis less | grep "/less"`
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if [ "$use_pager" = "True" ] && [ -n "$if_pager" ]; then
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fdata=`format_twdata "$1" "$2"`
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echo -e "$fdata" > $(dirname $_def_conf)/pager.tmp
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less $(dirname $_def_conf)/pager.tmp
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rm -rf $(dirname $_def_conf)/pager.tmp
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else
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format_twdata "$1" "$2"
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fi
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}
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# Add a source to following list
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follow() {
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local is_following=$(echo $following | grep "$2")
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if [ -n "$1" ] && [ -n "$2" ] && [ -z "$is_following" ]; then
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sed -i "s|\[following\]|\[following\]\n$1\ =\ $2|" $_def_conf
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echo -e "You are now following ${_fmt_bold}$1${_fmt_reset}."
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elif [ -n "$is_following" ]; then
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echo -e "You are already following ${_fmt_bold}$1${_fmt_reset}."
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else
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echo -e "Usage: $_name follow [nick] [url]"
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fi
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}
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# List sources user is following
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following() {
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if [ -z "$following" ]; then
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echo -e "You haven't followed anyone yet."
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else
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local fol
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local fstatus="404"
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printf "$following" | while read line; do
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# Format: nick @ twturl (status_code)
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fol="${_fmt_bold}${line/ = */}${_fmt_reset} @ ${line/* = /}"
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if [ "$check_following" = "True" ]; then
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fstatus=`curlp "status" "${line/* = /}"`
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fol="${fol} ($fstatus)"
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fi
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echo -e "$fol"
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done
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fi
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}
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# Interactive setup
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quickstart() {
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echo -e "---------- $_name quickstart ----------\n"
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# Check for existing conf
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if [ -f "$_def_conf" ]; then
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read -p "A config file already exists. Overwrite it? [Y/n] " ow_config
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while [[ ! "$ow_config" = "y" && ! "$ow_config" = "n" ]]; do
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read -p "Please answer 'y' or 'n': " ow_config
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done
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if [ "$ow_config" = "n" ]; then
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mv $_def_conf $_def_conf-$(date +"%Y-%m-%d-%H%M");
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echo -e "Old config copied to $_def_conf-$(date +"%Y-%m-%d-%H%M")"
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fi
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fi
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read -p "What's your nick? [$(whoami)] " nick
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read -p "Where do you want to store your tweets? (Enter full path) \
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[${_options[1]/* = /}] " twtfile
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read -p "Where can others find your tweets? (File should end in .txt) \
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[${_options[2]/* = /}] " twturl
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create_config "$nick" "$twtfile" "$twturl"
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echo -e "Config created in $(dirname $_def_conf). Ready to tweet!"
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}
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# Add user to registry
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api_add_user() {
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local resp=`curlp "post" \
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"${registries[0]}users?url=$twturl&nickname=$nick"`
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case $resp in
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OK) echo -e "Your nick has been added to the registry. Hooray!";;
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*) echo -e "Error: $resp";;
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esac
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}
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# Search registry for a tag, tweet or user
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api_search() {
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if [ -n "$1" ] && [ -n "$2" ]; then
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local src_data
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case $1 in
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keyword) src_data=`curlp "src" "${registries[0]}tweets?q=$2"`;;
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tag) src_data=`curlp "src" "${registries[0]}tags/$2"`;;
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user) src_data=`curlp "src" "${registries[0]}users?q=$2"`;;
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*) echo "Invalid search option. Options: keyword, tag, user";;
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esac
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if [ -z "$src_data" ]; then
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echo -e "No search results found."; exit 0
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else
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output_twdata "search" "$src_data"
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fi
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else
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echo -e "Usage: $_name search keyword|tag|user [keyword]"
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fi
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}
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# Get timeline by type: user, mentions (registry), public (registry)
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api_timeline() {
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local ftype src_data
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case $1 in
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me)
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ftype="timeline_me"
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src_data=`cat $twtfile`
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if [ -z "$src_data" ]; then
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echo -e "Nothing to see yet. Try tweeting first?"; exit 0
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fi;;
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mentions)
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ftype="timeline"
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src_data=`curlp "src" "${registries[0]}mentions?url=$twturl"`
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if [ -z "$src_data" ]; then
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echo -e "No mentions found."; exit 0
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fi;;
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public)
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ftype="timeline"
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src_data=`curlp "src" "${registries[0]}tweets"`
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if [ -z "$src_data" ]; then
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echo -e "No tweets found."; exit 0
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fi;;
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*) echo -n "Usage: $_name timeline me|mentions|public"; exit 1;;
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esac
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output_twdata "$ftype" "$src_data"
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}
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||
|
|
# View another user's timeline given a nick or source url
|
||
|
|
view() {
|
||
|
|
local src src_data
|
||
|
|
if [ -n "$1" ]; then
|
||
|
|
# if: check whether it's a source and attempt to resolve url
|
||
|
|
# elif: check for nick match
|
||
|
|
# else: exit with no match found
|
||
|
|
if [[ "$1" =~ "http://" || "$1" =~ "https://" ]]; then
|
||
|
|
src_data=`curlp "src" "$1"`
|
||
|
|
elif [ -z "$src_data" ]; then
|
||
|
|
src=`cat $_def_conf | grep "$1"`
|
||
|
|
if [ -n "$src" ]; then
|
||
|
|
src_data=`curlp "src" "${src/* = /}"`
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
echo -e "No tweets found from nick/source."; exit 1
|
||
|
|
fi
|
||
|
|
echo -e "Timeline of ${_fmt_bold}$1${_fmt_reset}:\n"
|
||
|
|
output_twdata "timeline_me" "$src_data"
|
||
|
|
else
|
||
|
|
echo -e "Usage: $_name view [source]"
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Load tweet hook commands
|
||
|
|
tweet_hook() {
|
||
|
|
local hook msg
|
||
|
|
case "$1" in
|
||
|
|
pre)
|
||
|
|
hook="$pre_tweet_hook"
|
||
|
|
msg="Running pre-tweet hook ...";;
|
||
|
|
post)
|
||
|
|
hook="$post_tweet_hook"
|
||
|
|
msg="Running post-tweek hook ...";;
|
||
|
|
esac
|
||
|
|
hook=`echo -e "$hook" | sed "s|\"||g"`
|
||
|
|
if [ -n "$hook" ]; then
|
||
|
|
echo -e "$msg"
|
||
|
|
eval "$hook" || exit 1
|
||
|
|
echo -e "Done."
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Add a tweet to user timeline
|
||
|
|
tweet() {
|
||
|
|
if [ ! -f "$twtfile" ]; then touch "$twtfile"; fi
|
||
|
|
# Launch external editor to compose
|
||
|
|
local buffer=$(dirname $_def_conf)/tweet.tmp
|
||
|
|
$editor $buffer
|
||
|
|
|
||
|
|
# Check for empty tweet
|
||
|
|
if [ ! -f $buffer ] || [ -z "$(cat $buffer)" ]; then exit 0; fi
|
||
|
|
|
||
|
|
# Alert user if character limit warning is enabled and limit exceeded
|
||
|
|
local twt="$(cat $buffer)"
|
||
|
|
while [ ${#twt} -gt $character_warning ] && \
|
||
|
|
[ "$character_warning_on" = "True" ]; do
|
||
|
|
read -p "Your tweet is ${#twt} chars long (limit $character_warning \
|
||
|
|
chars). What would you like to do? [e]dit / [i]gnore : " resp_limit
|
||
|
|
while [[ ! "$resp_limit" = "e" && ! "$resp_limit" = "i" ]]; do
|
||
|
|
read -p "Please answer 'e' (edit) or 'i' (ignore) : " \
|
||
|
|
resp_limit
|
||
|
|
done
|
||
|
|
case $resp_limit in
|
||
|
|
e) $editor $buffer;;
|
||
|
|
i) break;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
# Save tweet
|
||
|
|
tweet_hook "pre"
|
||
|
|
echo -e "$(date +%FT%T%:z)\t$(cat $buffer)" >> $twtfile
|
||
|
|
rm -rf $buffer
|
||
|
|
echo -e "Tweet added. Cheers!"
|
||
|
|
tweet_hook "post"
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Add new tweet (inline variant)
|
||
|
|
# Limitation: like most bash shell scripts, using special characters at
|
||
|
|
# the prompt without manual escaping will cause bash to throw an error.
|
||
|
|
# Retained for convenience.
|
||
|
|
quicktweet() {
|
||
|
|
if [ ! -f "$twtfile" ]; then touch "$twtfile"; fi
|
||
|
|
if [ -z "$1" ]; then
|
||
|
|
echo -e "No empty tweets, please. Try again?"; exit 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Alert user if character limit warning is enabled and limit exceeded
|
||
|
|
local twt="$1"
|
||
|
|
while [ ${#twt} -gt $character_warning ] && \
|
||
|
|
[ "$character_warning_on" = "True" ]; do
|
||
|
|
read -p "Your tweet is ${#twt} chars long (limit $character_warning \
|
||
|
|
chars). What would you like to do? [e]dit / [i]gnore : " resp_limit
|
||
|
|
while [[ ! "$resp_limit" = "e" && ! "$resp_limit" = "i" ]]; do
|
||
|
|
read -p "Please answer 'e' (edit) or 'i' (ignore) : " \
|
||
|
|
resp_limit
|
||
|
|
done
|
||
|
|
case $resp_limit in
|
||
|
|
e) read -e -i "$twt" -p "Edit tweet: " twt;;
|
||
|
|
i) break;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
# Save tweet
|
||
|
|
tweet_hook "pre"
|
||
|
|
echo -e "`date +%FT%T%:z`\t$twt" >> $twtfile
|
||
|
|
echo -e "Tweet added. Cheers!"
|
||
|
|
tweet_hook "post"
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Unfollow a source
|
||
|
|
unfollow() {
|
||
|
|
local is_following=$(echo $following | grep "$1")
|
||
|
|
if [ -n "$1" ] && [ -n "$is_following" ]; then
|
||
|
|
sed -i "s|.*$1|__unfollowdelete|" $_def_conf
|
||
|
|
printf "$(cat $_def_conf | sed "/__unfollowdelete/d")" > $_def_conf
|
||
|
|
echo -e "You have unfollowed \
|
||
|
|
${_fmt_bold}${is_following/ = */}${_fmt_reset} @ $1."
|
||
|
|
elif [ -z "$is_following" ]; then
|
||
|
|
echo -e "You're not currently following this source."
|
||
|
|
else
|
||
|
|
echo -e "Please specify a source url."
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
# Command switch
|
||
|
|
case "$1" in
|
||
|
|
config) edit_config $2 $3;;
|
||
|
|
follow) load_config; follow $2 $3;;
|
||
|
|
following) load_config; following;;
|
||
|
|
qt) load_config; quicktweet "$2";;
|
||
|
|
quickstart) quickstart;;
|
||
|
|
register) load_config; api_add_user;;
|
||
|
|
search) load_config; api_search $2 $3;;
|
||
|
|
timeline) load_config; api_timeline $2;;
|
||
|
|
tweet) load_config; tweet;;
|
||
|
|
unfollow) load_config; unfollow $2;;
|
||
|
|
view) load_config; view $2 $3;;
|
||
|
|
--version|version) echo -e "$_name v. $_version";;
|
||
|
|
*) echo -e "$_name — $_desc\n\n\
|
||
|
|
Usage: $_name [command] [args]\n\n\
|
||
|
|
Commands:\n\
|
||
|
|
config\t\tEdit the config file\n\
|
||
|
|
follow\t\tAdd a new source to follow\n\
|
||
|
|
following\t\tList sources you are following\n\
|
||
|
|
qt\t\t\tQuickly add a new tweet\n\
|
||
|
|
quickstart\t\tSet up $_name (run this first!)\n\
|
||
|
|
register\t\tAdd your nick to registry (optional for discoverability)\n\
|
||
|
|
search\t\tSearch registry by keyword, tag or user\n\
|
||
|
|
timeline\t\tView your timeline, mentions or public timeline\n\
|
||
|
|
tweet\t\tAdd a new tweet from a preferred text editor\n\
|
||
|
|
unfollow\t\tRemove a source from your following list\n\
|
||
|
|
view\t\tView a source by url\n\
|
||
|
|
version\t\tShow the version\n\
|
||
|
|
help\t\tShow this help message\n\n\
|
||
|
|
Examples:\n\
|
||
|
|
$_name config nick MyNick\t\t\tChange your nick to \"MyNick\"\n\
|
||
|
|
$_name config edit\t\t\t\tEdit config file in an editor (default: vi)\n\
|
||
|
|
$_name follow Foo https://foo.tld/twtxt.txt\tFollow user \"Foo\"\n\
|
||
|
|
$_name search tag blog\t\t\tSearch registry for tweets with \"blog\" tag\n\
|
||
|
|
$_name timeline me\t\t\t\tView your timeline\n\
|
||
|
|
$_name qt \"Hello world!\"\t\t\tTweet a message\n\
|
||
|
|
$_name unfollow https://foo.tld/twtxt.txt\tRemove url from followings\n\
|
||
|
|
$_name view Foo\t\t\t\tView user Foo's twtxt if already on followings\n\
|
||
|
|
$_name view https://foo.tld/twtxt.txt\tView source url\n\
|
||
|
|
";;
|
||
|
|
esac
|