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add term

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Joseph Werle 10 years ago
parent 0bb1f96029
commit a7bbe0383a
9 changed files with 536 additions and 2 deletions
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2
Makefile
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BIN ?= bpkg
PREFIX ?= /usr/local
CMDS = json install package
CMDS = json install package term
install: uninstall
install $(BIN) $(PREFIX)/bin

1
bpkg-term
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lib/term/term.sh

2
lib/install/install.sh
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@ -138,7 +138,7 @@ bpkg_install () {
## prune existing
rm -rf ${name}-${version} &&
## shallow clone
git clone --depth=1 ${BPKG_GIT_REMOTE}/${user}/${name}.git ${name}-${version} &&
git clone --depth=1 ${BPKG_GIT_REMOTE}/${user}/${name}.git ${name}-${version} > /dev/null 2>&1 &&
## move into directory
cd ${name}-${version} &&
## build

21
lib/term/LICENSE
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The MIT License (MIT)
Copyright (c) 2014 Joseph Werle
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

14
lib/term/Makefile
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BIN ?= term
PREFIX ?= /usr/local
install:
cp term.sh $(PREFIX)/bin/$(BIN)
uninstall:
rm -f $(PREFIX)/bin/$(BIN)
example.sh:
./example.sh
.PHONY: example.sh

100
lib/term/README.md
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term.sh
=======
Terminal fun written in bash inspired by clibs/term
## install
```sh
$ make install
```
or
```sh
$ . term.sh
```
## usage
```
usage: term [-hV] <command> [args]
```
## example
```sh
$ { term color green; } && { term underline; } && { echo heyaaaa; }
heyaaaa
```
## api
```
commands:
write <code> Write a terminal escape code
cursor <op> Perform operation to cursor
color <color> Set terminal color by name (See colors)
background <color> Set terminal background by name (See colors)
move <x> <y> Move to (x, y)
transition <x> <y> Transition to (x, y)
clear <section> Clear terminal section by name (See sections)
reset Reset the terminal escape code sequence
bright Write bright escape code
dim Write dim escape code
underline Write underline escape code
blink Write blink escape code
reverse Write reverse escape code
hidden Write hidden escape code
colors:
black $ term color black
red $ term color red
green $ term color green
yellow $ term color yellow
blue $ term color blue
magenta $ term color magenta
cyan $ term color cyan
white $ term color white
gray|grey $ term color gray
sections:
start Start of line
end End of line
up Upper section
down Lower section
line Current line
screen Entire screen
```
## histogram
See `example.sh`
```
.
.
.
.
.
█
. █
█
. █
█ █
. █ █
█ █
█ █
. █ █ █ █ █ █ █ █ █ █ █
```
## license
MIT

98
lib/term/example.sh
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#!/bin/bash
## include
. term.sh
## data
declare -a data=( 0 2 3 1 3 3 3 8 2 12 4 2 4 3 )
## clean up everything
cleanup () {
## clear
term clear screen
## bring back cursor
term cursor show
return 0
}
## on SIGINT signal
onsigint () {
cleanup
exit 1
}
## clear screen
term clear screen
## position to top left
term move 0 0
## clear line
term clear line
## hide cursor
term cursor hide
## catch sigint
trap "onsigint" SIGINT
## main loop
{
let pad=3
let n=0
let w=($(tput cols))
let h=($(tput lines))
let x=0
let y=0
let len="${#data[@]}"
term clear screen
term move ${pad} 1
## y axis
for (( n = 0; n < (h - pad - 1); n += 2 )); do
term transition 0 2
term color gray
printf "."
done
y=( ${h} - 2 )
term move ${pad} ${y}
## x axis
for (( n = 0; n < (w - pad * 3); n += 6)); do
term color gray
printf "."
term transition 6 0
done
x=0
for (( i = 0; i < len; ++i )); do
let n="${data[$i]}"
while (( n-- )); do
if (( n < 0 )); then
break
fi
let a=( ${x} * 6 + ${pad} )
let b=( ${h} - ${n} + ${pad} )
#echo $a $b
term move ${a} ${b}
term reset
printf "█"
done
(( x++ ))
sleep .5
done
h=( ${h} - 1)
term move ${w} ${h}
}
## clean up terminal
cleanup
## exit
exit $?

7
lib/term/package.json
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{
"name": "term",
"version": "0.0.1",
"description": "Terminal utility functions",
"scripts": [ "term.sh" ],
"install": "make install"
}

293
lib/term/term.sh
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#!/bin/bash
## version
VERSION="0.0.1"
## coords
let _x=0
let _y=0
## output error to stderr
error () {
printf >&2 "error: %s\n" "${@}"
}
## output usage
usage () {
echo "usage: term [-hV] <command> [args]"
}
## write code to terminal
term_write () {
local let c="${1}"
## ensure
if [ -z "${c}" ]; then
return 1
fi
printf "\e[${c}"
return 0
}
## cursor operations
term_cursor () {
local op="$1"
if [ -z "${op}" ]; then
return 1
fi
case "${op}" in
hide) term write "?25l" ;;
show) term write "?25h" ;;
*) return 1 ;;
esac
return 0
}
## move to (x, y)
term_move () {
local let x="${1}"
local let y="${2}"
## ensure
if [ -z "${x}" ] || [ -z "${y}" ]; then
return 1
fi
## set state
(( _x = ${x} ))
(( _y = ${y} ))
## write
printf "\e[%d;%d;f" ${y} ${x}
return 0
}
term_transition () {
local let x="${1}"
local let y="${2}"
if [ -z "${x}" ] || [ -z "${y}" ]; then
return 1
fi
(( x = ${x} + ${_x} ))
(( y = ${y} + ${_y} ))
term move "${x}" "${y}"
return 0
}
## set terminal color
term_color () {
local color="${1}"
local fmt="\e[3%dm"
if [ -z "${color}" ]; then
return 1
fi
case "${color}" in
black) printf "${fmt}" "0" ;;
red) printf "${fmt}" "1" ;;
green) printf "${fmt}" "2" ;;
yellow) printf "${fmt}" "3" ;;
blue) printf "${fmt}" "4" ;;
magenta) printf "${fmt}" "5" ;;
cyan) printf "${fmt}" "6" ;;
white) printf "${fmt}" "7" ;;
gray|grey) printf "\e[90m" ;;
*) return 1 ;;
esac
return 0
}
## set term background color
term_background () {
local color="${1}"
local fmt="\e[4%dm"
if [ -z "${color}" ]; then
return 1
fi
case "${color}" in
black) printf "${fmt}" "0" ;;
red) printf "${fmt}" "1" ;;
green) printf "${fmt}" "2" ;;
yellow) printf "${fmt}" "3" ;;
blue) printf "${fmt}" "4" ;;
magenta) printf "${fmt}" "5" ;;
cyan) printf "${fmt}" "6" ;;
white) printf "${fmt}" "7" ;;
*) return 1 ;;
esac
return 0
}
## reset terminal escape sequence
term_reset () {
term write "0m"
}
## make terminal bright
term_bright () {
term write "1m"
}
## make terminal dim
term_dim () {
term write "2m"
}
## make terminal underlined
term_underline () {
term write "4m"
}
## make terminal blink
term_blink () {
term write "5m"
}
## make terminal reverse
term_reverse () {
term write "7m"
}
## make terminal hidden
term_hidden () {
term write "8m"
}
## clear a terminal section by name
term_clear () {
local section="${1}"
local fmt="\e[%s"
if [ -z "${section}" ]; then
return 1
fi
case "${section}" in
start) printf "${fmt}" "1K";;
end) printf "${fmt}" "K";;
line) printf "${fmt}" "2K";;
screen|up) printf "${fmt}" "1J";;
down) printf "${fmt}" "J";;
*) return 1 ;;
esac
return 0
}
##
# Term functions
#
# usage: term [-hV] <command>
##
term () {
local arg="$1"
local cmd=""
shift
case "${arg}" in
## flags
-V|--version)
echo "${VERSION}"
return 0
;;
-h|--help)
usage
## commands
{
echo
echo "commands: "
echo
echo " write <code> Write a terminal escape code"
echo " cursor <op> Perform operation to cursor"
echo " color <color> Set terminal color by name (See colors)"
echo " background <color> Set terminal background by name (See colors)"
echo " move <x> <y> Move to (x, y)"
echo " transition <x> <y> Transition to (x, y)"
echo " clear <section> Clear terminal section by name (See sections)"
echo " reset Reset the terminal escape code sequence"
echo " bright Write bright escape code"
echo " dim Write dim escape code"
echo " underline Write underline escape code"
echo " blink Write blink escape code"
echo " reverse Write reverse escape code"
echo " hidden Write hidden escape code"
}
## colors
{
echo
echo "colors:"
echo
term color black
echo " black $ term color black"
term color red
echo " red $ term color red"
term color green
echo " green $ term color green"
term color yellow
echo " yellow $ term color yellow"
term color blue
echo " blue $ term color blue"
term color magenta
echo " magenta $ term color magenta"
term color cyan
echo " cyan $ term color cyan"
term color white
echo " white $ term color white"
term color gray
echo " gray|grey $ term color gray"
term reset
}
## sections
{
echo
echo "sections:"
echo
echo " start Start of line"
echo " end End of line"
echo " up Upper section"
echo " down Lower section"
echo " line Current line"
echo " screen Entire screen"
}
return 0
;;
*)
cmd="term_${arg}"
if type "${cmd}" > /dev/null 2>&1; then
"${cmd}" "${@}"
return $?
else
if [ ! -z "${arg}" ]; then
error "Unknown argument: \`${arg}'"
fi
usage
return 1
fi
;;
esac
}
## detect if being sourced and
## export if so else execute
## main function with args
if [[ ${BASH_SOURCE[0]} != $0 ]]; then
export -f term
else
term "${@}"
fi
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