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#!/usr/bin/env python
"""
This source file is part of the Swift.org open source project
Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for Swift project authors
-------------------------------------------------------------------------
"""
from __future__ import print_function
import argparse
import json
import os
import platform
import re
import shutil
import subprocess
import subprocess
import sys
import errno
def note(message):
print("--- %s: note: %s" % (os.path.basename(sys.argv[0]), message))
sys.stdout.flush()
def error(message):
print("--- %s: error: %s" % (os.path.basename(sys.argv[0]), message))
sys.stdout.flush()
raise SystemExit(1)
def mkdir_p(path):
"""Create the given directory, if it does not exist."""
try:
os.makedirs(path)
except OSError as e:
# Ignore EEXIST, which may occur during a race condition.
if e.errno != errno.EEXIST:
raise
def call(cmd, cwd=None, verbose=False):
"""Calls a subprocess."""
if verbose:
print(' '.join(cmd))
try:
subprocess.check_call(cmd, cwd=cwd)
except Exception as e:
if not verbose:
print(' '.join(cmd))
error(str(e))
def call_output(cmd, cwd=None, stderr=False, verbose=False):
"""Calls a subprocess for its return data."""
if verbose:
print(' '.join(cmd))
try:
return subprocess.check_output(cmd, cwd=cwd, stderr=stderr, universal_newlines=True).strip()
except Exception as e:
if not verbose:
print(' '.join(cmd))
error(str(e))
def main():
parser = argparse.ArgumentParser(description="""
This script will build a TSC using CMake.
""")
subparsers = parser.add_subparsers(dest='command')
# build
parser_build = subparsers.add_parser("build", help="builds TSC using CMake")
parser_build.set_defaults(func=build)
add_build_args(parser_build)
args = parser.parse_args()
args.func = args.func or build
args.func(args)
# -----------------------------------------------------------
# Argument parsing
# -----------------------------------------------------------
def add_global_args(parser):
"""Configures the parser with the arguments necessary for all actions."""
parser.add_argument(
"--build-dir",
help="path where products will be built [%(default)s]",
default=".build",
metavar="PATH")
parser.add_argument(
"-v", "--verbose",
action="store_true",
help="whether to print verbose output")
parser.add_argument(
"--reconfigure",
action="store_true",
help="whether to always reconfigure cmake")
def add_build_args(parser):
"""Configures the parser with the arguments necessary for build-related actions."""
add_global_args(parser)
parser.add_argument(
"--swiftc-path",
help="path to the swift compiler",
metavar="PATH")
parser.add_argument(
'--cmake-path',
metavar='PATH',
help='path to the cmake binary to use for building')
parser.add_argument(
'--ninja-path',
metavar='PATH',
help='path to the ninja binary to use for building with CMake')
def parse_global_args(args):
"""Parses and cleans arguments necessary for all actions."""
args.build_dir = os.path.abspath(args.build_dir)
args.project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if platform.system() == 'Darwin':
args.sysroot = call_output(["xcrun", "--sdk", "macosx", "--show-sdk-path"], verbose=args.verbose)
else:
args.sysroot = None
def parse_build_args(args):
"""Parses and cleans arguments necessary for build-related actions."""
parse_global_args(args)
args.swiftc_path = get_swiftc_path(args)
args.cmake_path = get_cmake_path(args)
args.ninja_path = get_ninja_path(args)
def get_swiftc_path(args):
"""Returns the path to the Swift compiler."""
if args.swiftc_path:
swiftc_path = os.path.abspath(args.swiftc_path)
elif os.getenv("SWIFT_EXEC"):
swiftc_path = os.path.realpath(os.getenv("SWIFT_EXEC"))
elif platform.system() == 'Darwin':
swiftc_path = call_output(
["xcrun", "--find", "swiftc"],
stderr=subprocess.PIPE,
verbose=args.verbose
)
else:
swiftc_path = call_output(["which", "swiftc"], verbose=args.verbose)
if os.path.basename(swiftc_path) == 'swift':
swiftc_path = swiftc_path + 'c'
return swiftc_path
def get_cmake_path(args):
"""Returns the path to CMake."""
if args.cmake_path:
return os.path.abspath(args.cmake_path)
elif platform.system() == 'Darwin':
return call_output(
["xcrun", "--find", "cmake"],
stderr=subprocess.PIPE,
verbose=args.verbose
)
else:
return call_output(["which", "cmake"], verbose=args.verbose)
def get_ninja_path(args):
"""Returns the path to Ninja."""
if args.ninja_path:
return os.path.abspath(args.ninja_path)
elif platform.system() == 'Darwin':
return call_output(
["xcrun", "--find", "ninja"],
stderr=subprocess.PIPE,
verbose=args.verbose
)
else:
return call_output(["which", "ninja"], verbose=args.verbose)
# -----------------------------------------------------------
# Actions
# -----------------------------------------------------------
def build(args):
parse_build_args(args)
build_tsc(args)
# -----------------------------------------------------------
# Build functions
# -----------------------------------------------------------
def build_with_cmake(args, cmake_args, source_path, build_dir):
"""Runs CMake if needed, then builds with Ninja."""
cache_path = os.path.join(build_dir, "CMakeCache.txt")
if args.reconfigure or not os.path.isfile(cache_path) or not args.swiftc_path in open(cache_path).read():
swift_flags = ""
if args.sysroot:
swift_flags = "-sdk %s" % args.sysroot
cmd = [
args.cmake_path, "-G", "Ninja",
"-DCMAKE_MAKE_PROGRAM=%s" % args.ninja_path,
"-DCMAKE_BUILD_TYPE:=Debug",
"-DCMAKE_Swift_FLAGS=" + swift_flags,
"-DCMAKE_Swift_COMPILER:=%s" % (args.swiftc_path),
] + cmake_args + [source_path]
if args.verbose:
print(' '.join(cmd))
mkdir_p(build_dir)
call(cmd, cwd=build_dir, verbose=True)
# Build.
ninja_cmd = [args.ninja_path]
if args.verbose:
ninja_cmd.append("-v")
call(ninja_cmd, cwd=build_dir, verbose=args.verbose)
def build_tsc(args):
cmake_flags = []
if platform.system() == 'Darwin':
cmake_flags.append("-DCMAKE_C_FLAGS=-target x86_64-apple-macosx10.10")
cmake_flags.append("-DCMAKE_OSX_DEPLOYMENT_TARGET=10.10")
build_with_cmake(args, cmake_flags, args.project_root, args.build_dir)
if __name__ == '__main__':
main()
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