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#!/bin/sh
# For details on the basic form of this script, see https://notabug.org/akkartik/basic-build.
set -e # stop immediately on error
# Some environment variables that can be passed in. For example, to turn off
# optimization:
# $ CFLAGS=-g ./build2
test "$CXX" || export CXX=c++
test "$CC" || export CC=cc
test "$CFLAGS" || export CFLAGS="-g -O2"
export CFLAGS="$CFLAGS -Wall -Wextra -ftrapv -fno-strict-aliasing"
# there's two mechanisms for fast builds here:
# - if a command is quick to run, always run it but update the result only on any change
# - otherwise run it only if the output is 'older_than' the inputs
#
# avoid combining both mechanisms for a single file
# otherwise you'll see spurious messages about files being updated
# risk: a file may unnecessarily update without changes, causing unnecessary work downstream
# return 1 if $1 is older than _any_ of the remaining args
older_than() {
local target=$1
shift
if [ ! -e $target ]
then
#? echo "$target doesn't exist"
echo "updating $target" >&2
return 0 # success
fi
local f
for f in $*
do
if [ $f -nt $target ]
then
echo "updating $target" >&2
return 0 # success
fi
done
return 1 # failure
}
# redirect to $1, unless it's already identical
update() {
if [ ! -e $1 ]
then
cat > $1
else
cat > $1.tmp
diff -q $1 $1.tmp >/dev/null && rm $1.tmp || mv $1.tmp $1
fi
}
noisy_cd() {
cd $1
echo "-- `pwd`" >&2
}
older_than browse_trace_bin browse_trace.cc *_list ../termbox/* && {
# missing some deps here
noisy_cd ../termbox
older_than ../termbox/libtermbox.a ../termbox/*.c && {
older_than utf8.o utf8.c && {
$CC $CFLAGS -c utf8.c
}
older_than termbox.o termbox.c termbox.h input.inl output.inl bytebuffer.inl && {
$CC $CFLAGS -c termbox.c
}
older_than libtermbox.a *.o && {
ar rcs libtermbox.a *.o
}
}
noisy_cd ../browse_trace
grep -h "^[^[:space:]#].*) {$" browse_trace.cc |grep -v ":.*(" |sed 's/ {.*/;/' |update function_list
# auto-generate list of tests to run
grep -h "^\s*void test_" browse_trace.cc |sed 's/^\s*void \(.*\)() {.*/\1,/' |update test_list
grep -h "^\s*void test_" browse_trace.cc |sed 's/^\s*void \(.*\)() {.*/"\1",/' |update test_name_list
$CXX $CFLAGS browse_trace.cc ../termbox/libtermbox.a -o browse_trace_bin
}
exit 0
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