Merge pull request swiftlang#30 from nkcsgexi/update-tool

build-script: add a script to rebuild SwiftSyntax and install it to an existing toolchain.

Author: nkcsgexi

update-toolchain.py

@@ -0,0 +1,75 @@
+#!/usr/bin/env python
+from __future__ import print_function
+
+import argparse
+import os
+import subprocess
+import sys
+import tempfile
+import errno
+import platform
+import shutil
+
+BUILD_SCRIPT = os.path.dirname(os.path.abspath(__file__)) + '/build-script.py'
+
+def printerr(message):
+    print(message, file=sys.stderr)
+
+def note(message):
+    print("--- %s: note: %s" % (os.path.basename(sys.argv[0]), message))
+    sys.stdout.flush()
+
+def fatal_error(message):
+    printerr(message)
+    sys.exit(1)
+
+def escapeCmdArg(arg):
+    if '"' in arg or ' ' in arg:
+        return '"%s"' % arg.replace('"', '\\"')
+    else:
+        return arg
+
+def check_call(cmd, env=os.environ):
+    print(' '.join([escapeCmdArg(arg) for arg in cmd]))
+    return subprocess.check_call(cmd, env=env, stderr=subprocess.STDOUT)
+
+def build(swiftc_exec, build_dir):
+    check_call([BUILD_SCRIPT, '--release', '--swiftc-exec', swiftc_exec,
+        '--build-dir', build_dir, '-v'])
+
+def install(swiftc_exec, build_dir, dylib_dir, module_dir):
+    check_call([BUILD_SCRIPT, '--release', '--install', '--swiftc-exec',
+        swiftc_exec, '--dylib-dir', dylib_dir, '--swiftmodule-dir', module_dir,
+        '--build-dir', build_dir, '-v'])
+
+def main():
+    if not os.geteuid() == 0:
+        fatal_error("\n!!!!!!!!Run this script with root access!!!!!!!!\n")
+    parser = argparse.ArgumentParser(
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        description='''
+Build and re-install SwiftSytnax for an existing toolchain.
+
+This script calls ./build-script internally to rebuild SwiftSyntax using an
+existing toolchain and install the build artifacts back to the toolchain.
+''')
+
+    basic_group = parser.add_argument_group('Basic')
+
+    basic_group.add_argument('--toolchain-dir', default=None, help='''
+        Directory of an existing toolchain.
+        ''')
+
+    args = parser.parse_args(sys.argv[1:])
+    build_dir = tempfile.mkdtemp()
+    swiftc_exec = args.toolchain_dir + '/usr/bin/swiftc'
+    dylib_dir = args.toolchain_dir + '/usr/lib/swift/macosx'
+    module_dir = args.toolchain_dir + '/usr/lib/swift/macosx/x86_64'
+    print('Using swiftc: ' + swiftc_exec)
+    print('Using build directory: ' + build_dir)
+    build(swiftc_exec=swiftc_exec, build_dir=build_dir)
+    install(swiftc_exec=swiftc_exec, build_dir=build_dir, dylib_dir=dylib_dir,
+        module_dir=module_dir)
+
+if __name__ == '__main__':
+    main()