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#!/bin/sh
#
# Bootstrap script, so we can build and test redo using (mostly) redo.
# Before redo is available, we have to use minimal/do to build it. After
# that, we switch to real redo.
#
# NOTE: Don't use this as a model for your own redo projects! It's friendly
# to provide a 'do' script at the top of your project for people who haven't
# installed redo, but that script is usually just a copy of minimal/do,
# because your project probably doesn't have the same bootstrap problem that
# redo itself does.
#
die() {
echo "$0:" "$@" >&2
exit 42
}
usage() {
echo "Usage: $0 [redo-args...] <target>" >&2
echo " where valid targets are: build all test install clean" >&2
echo " and redo-args are optional args for redo, like -j10, -x" >&2
exit 10
}
mydir=$(dirname "$0")
cd "$(/bin/pwd)" && cd "$mydir" || die "can't find self in dir: $mydir"
args=
while [ "$1" != "${1#-}" ]; do
args="$args $1"
shift
done
if [ "$#" -gt 1 ]; then
usage
fi
if [ -n "$args" -a "$#" -lt 1 ]; then
usage
fi
if [ "$#" -lt 1 ]; then
# if no extra args given, use a default target
target=all
else
target=$1
fi
build() {
./minimal/do -c bin/all || die "failed to compile redo."
bin/redo bin/all || die "redo failed self test."
}
clean() {
./minimal/do -c clean || die "failed to clean."
rm -rf .redo .do_built .do_built.dir
}
case $target in
build)
build
;;
all|install)
build && bin/redo $args "$target"
;;
test)
# Be intentionally confusing about paths, to try to
# detect bugs.
rm -f 't/symlink path'
ln -s .. 't/symlink path' || die 'failed to make test dir.'
cd 't/symlink path/t/symlink path'
# First test minimal/do
build
# Add ./redo to PATH so we launch with redo/sh as the shell
PATH=$PWD/redo:$PATH minimal/do test || die "minimal/do test failed"
clean
build
# Now switch to testing 'real' redo
bin/redo $args test || die "redo test failed"
;;
clean)
clean
;;
*)
echo "$0: unknown target '$target'" >&2
exit 11
;;
esac