Created
December 6, 2016 07:11
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imgcat, I dont remember where did I get this one, but I will upload it to my gists.
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#!/bin/bash | |
# tmux requires unrecognized OSC sequences to be wrapped with DCS tmux; | |
# <sequence> ST, and for all ESCs in <sequence> to be replaced with ESC ESC. It | |
# only accepts ESC backslash for ST. | |
function print_osc() { | |
if [[ $TERM == screen* ]] ; then | |
printf "\033Ptmux;\033\033]" | |
else | |
printf "\033]" | |
fi | |
} | |
# More of the tmux workaround described above. | |
function print_st() { | |
if [[ $TERM == screen* ]] ; then | |
printf "\a\033\\" | |
else | |
printf "\a" | |
fi | |
} | |
# print_image filename inline base64contents | |
# filename: Filename to convey to client | |
# inline: 0 or 1 | |
# base64contents: Base64-encoded contents | |
function print_image() { | |
print_osc | |
printf '1337;File=' | |
if [[ -n "$1" ]]; then | |
printf 'name='`echo -n "$1" | base64`";" | |
fi | |
if $(base64 --version 2>&1 | egrep 'fourmilab|GNU' > /dev/null) | |
then | |
BASE64ARG=-d | |
else | |
BASE64ARG=-D | |
fi | |
echo -n "$3" | base64 $BASE64ARG | wc -c | awk '{printf "size=%d",$1}' | |
printf ";inline=$2" | |
printf ":" | |
echo -n "$3" | |
print_st | |
printf '\n' | |
} | |
function error() { | |
echo "ERROR: $*" 1>&2 | |
} | |
function show_help() { | |
echo "Usage: imgcat filename ..." 1>& 2 | |
echo " or: cat filename | imgcat" 1>& 2 | |
} | |
## Main | |
if [ -t 0 ]; then | |
has_stdin=f | |
else | |
has_stdin=t | |
fi | |
# Show help if no arguments and no stdin. | |
if [ $has_stdin = f -a $# -eq 0 ]; then | |
show_help | |
exit | |
fi | |
# Look for command line flags. | |
while [ $# -gt 0 ]; do | |
case "$1" in | |
-h|--h|--help) | |
show_help | |
exit | |
;; | |
-*) | |
error "Unknown option flag: $1" | |
show_help | |
exit 1 | |
;; | |
*) | |
if [ -r "$1" ] ; then | |
print_image "$1" 1 "$(base64 < "$1")" | |
else | |
error "imgcat: $1: No such file or directory" | |
exit 2 | |
fi | |
;; | |
esac | |
shift | |
done | |
# Read and print stdin | |
if [ $has_stdin = t ]; then | |
print_image "" 1 "$(cat | base64)" | |
fi | |
exit 0 |
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