vicint

#!/bin/sh
## Interactive C in vim (edit, compile, run)
#
# Usage: $0 file.c
#
# - open a file and terminal
# - wait until the file is changed (saved)
# - run a command, default: compile and run
#
# Needs: innotifywait (from inotify-tools)

if ! type -p inotifywait >& /dev/null; then
	echo "ERROR: inotifywait not found"
	exit 1
fi

fn="$1"
if ! [ -f "$fn" ]; then
	echo "File $fn does not exist, creating"
	touch "$fn"
fi
out=$(basename "$fn" .c)-cint

while :; do
	# Multiple events are sent, the last one is DELETE_SELF
	inotifywait -qq -e delete_self "$fn"
	# Recreated file can be missing before the command starts
	until [ -f "$fn" ]; do
		sleep 0.5
	done
	echo "=== Compile $fn to $out"
	gcc -o "$out" "$fn" && "./$out"
done