ref: ab6cc5b92c90ff46045464c3ed7218ceb1c34661
dir: /tool/
#!/usr/bin/env bash
set -eu -o pipefail
print_usage() {
cat <<EOF
Usage: tool [options] command [args]
Commands:
build <config> <target>
Compile orca.
Configs: debug, release
Targets: orca, tui
Output: build/<config>/<target>
clean
Removes build/
info
Prints information about the detected build environment.
Options:
-v Print important commands as they're executed.
-c <name> Use a specific compiler binary.
Default: \$CC, or cc
-d Enable compiler safeguards like -fstack-protector.
You should probably do this if you plan to give the
compiled binary to other people.
-s Print statistics about compile time and binary size.
-h or --help Print this message and exit.
EOF
}
os=
case $(uname -s | awk '{print tolower($0)}') in
linux*) os=linux;;
darwin*) os=mac;;
cygwin*) os=cygwin;;
*bsd*) os=bsd;;
*) os=unknown;;
esac
cc_exe="${CC:-cc}"
verbose=0
protections_enabled=0
stats_enabled=0
while getopts c:dhsv-: opt_val; do
case "$opt_val" in
-)
case "$OPTARG" in
help) print_usage; exit 0;;
*)
echo "Unknown long option --$OPTARG" >&2
print_usage >&2
exit 1
;;
esac
;;
c) cc_exe="$OPTARG";;
h) print_usage; exit 0;;
d) protections_enabled=1;;
s) stats_enabled=1;;
v) verbose=1;;
\?) print_usage >&2; exit 1;;
*) break;;
esac
done
warn() {
echo "Warning: $*" >&2
}
fatal() {
echo "Error: $*" >&2
exit 1
}
script_error() {
echo "Script error: $*" >&2
exit 1
}
verbose_echo() {
if [[ $verbose = 1 ]]; then
echo "$@"
fi
"$@"
}
TIMEFORMAT='%3R'
last_time=
file_size() {
wc -c < "$1" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//'
}
timed_stats() {
if [[ $stats_enabled = 1 ]]; then
{ last_time=$( { time "$@" 1>&3- 2>&4-; } 2>&1 ); } 3>&1 4>&2
else
"$@"
fi
}
if [[ ($os == bsd) || ($os == unknown) ]]; then
warn "Build script not tested on this platform"
fi
# This is not perfect by any means
cc_id=
cc_vers=
if cc_vers_string=$("$cc_exe" --version 2> /dev/null); then
if clang_vers_string=$(echo "$cc_vers_string" | grep clang | head -n1) && ! [[ -z $clang_vers_string ]]; then
cc_id=clang
# clang -dumpversion always pretends to be gcc 4.2.1
# shellcheck disable=SC2001
cc_vers=$(echo "$clang_vers_string" | sed 's/.*version \([0-9]*\.[0-9]*\.[0-9]*\).*/\1/')
# Only gcc has -dumpfullversion
elif cc_vers=$("$cc_exe" -dumpfullversion 2> /dev/null); then
cc_id=gcc
fi
fi
if [[ -z $cc_id ]]; then
warn "Failed to detect compiler type"
fi
if [[ -z $cc_vers ]]; then
warn "Failed to detect compiler version"
fi
add() {
if [[ -z "${1:-}" ]]; then
script_error "At least one argument required for array add"
fi
local array_name
array_name=${1}
shift
eval "$array_name+=($(printf "'%s' " "$@"))"
}
try_make_dir() {
if ! [[ -e "$1" ]]; then
verbose_echo mkdir "$1"
elif ! [[ -d "$1" ]]; then
fatal "File $1 already exists but is not a directory"
fi
}
build_dir=build
build_target() {
local build_subdir
local cc_flags=()
local libraries=()
local source_files=()
local out_exe
add cc_flags -std=c99 -pipe -Wall -Wpedantic -Wextra -Wconversion -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-pointer-types -Werror=int-conversion
if [[ $protections_enabled = 1 ]]; then
add cc_flags -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fpie -Wl,-pie
fi
case "$1" in
debug)
build_subdir=debug
add cc_flags -DDEBUG -ggdb -fsanitize=address -fsanitize=undefined
if [[ $os = mac ]]; then
# mac clang does not have -Og
add cc_flags -O1
# tui in the future
# add libraries -lncurses
else
add cc_flags -Og
# needed if address is already specified? doesn't work on mac clang, at
# least
# add cc_flags -fsanitize=leak
# add libraries -lncursesw
fi
;;
release)
build_subdir=release
add cc_flags -DNDEBUG -O2 -g0
if [[ $protections_enabled != 1 ]]; then
add cc_flags -fno-stack-protector
fi
if [[ $os = mac ]]; then
# todo some stripping option
true
else
# -flto is good on both clang and gcc on Linux
add cc_flags -flto -s
fi
;;
*) fatal "Unknown build config \"$1\"";;
esac
add source_files field.c mark.c bank.c sim.c
case "$2" in
orca|cli)
add source_files cli_main.c
out_exe=orca
;;
tui)
add source_files tui_main.c
add cc_flags -D_XOPEN_SOURCE_EXTENDED=1
out_exe=tui
if [[ $os = mac ]]; then
add libraries -lncurses
else
add libraries -lncursesw
fi
;;
esac
try_make_dir "$build_dir"
try_make_dir "$build_dir/$build_subdir"
local out_path=$build_dir/$build_subdir/$out_exe
# bash versions quirk: empty arrays might give error on expansion, use +
# trick to avoid expanding second operand
verbose_echo timed_stats "$cc_exe" "${cc_flags[@]}" -o "$out_path" "${source_files[@]}" ${libraries[@]+"${libraries[@]}"}
if [[ $stats_enabled = 1 ]]; then
echo "time: $last_time"
echo "size: $(file_size "$out_path")"
fi
}
print_info() {
cat <<EOF
Operating system: $os
Compiler name: $cc_exe
Compiler type: $cc_id
Compiler version: $cc_vers
EOF
}
shift $((OPTIND - 1))
if [[ -z "${1:-}" ]]; then
echo "Error: Command required" >&2
print_usage >&2
exit 1
fi
case "$1" in
info)
if [[ "$#" -gt 1 ]]; then
fatal "Too many arguments for 'info'"
fi
print_info
exit 0
;;
build)
if [[ "$#" -lt 3 ]]; then
fatal "Too few arguments for 'build'"
fi
if [[ "$#" -gt 3 ]]; then
fatal "Too many arguments for 'build'"
fi
build_target "$2" "$3"
;;
clean)
if [[ -d "$build_dir" ]]; then
verbose_echo rm -rf "$build_dir"
fi
;;
*) fatal "Unrecognized command $1";;
esac