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772 lines
30 KiB
772 lines
30 KiB
#!/usr/bin/env python3 |
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# Generated by gyp. Do not edit. |
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# Copyright (c) 2012 Google Inc. All rights reserved. |
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# Use of this source code is governed by a BSD-style license that can be |
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# found in the LICENSE file. |
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|
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"""Utility functions to perform Xcode-style build steps. |
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|
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These functions are executed via gyp-mac-tool when using the Makefile generator. |
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""" |
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|
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import fcntl |
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import fnmatch |
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import glob |
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import json |
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import os |
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import plistlib |
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import re |
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import shutil |
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import struct |
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import subprocess |
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import sys |
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import tempfile |
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|
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def main(args): |
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executor = MacTool() |
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exit_code = executor.Dispatch(args) |
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if exit_code is not None: |
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sys.exit(exit_code) |
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|
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class MacTool: |
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"""This class performs all the Mac tooling steps. The methods can either be |
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executed directly, or dispatched from an argument list.""" |
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|
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def Dispatch(self, args): |
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"""Dispatches a string command to a method.""" |
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if len(args) < 1: |
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raise Exception("Not enough arguments") |
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|
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method = "Exec%s" % self._CommandifyName(args[0]) |
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return getattr(self, method)(*args[1:]) |
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|
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def _CommandifyName(self, name_string): |
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"""Transforms a tool name like copy-info-plist to CopyInfoPlist""" |
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return name_string.title().replace("-", "") |
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|
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def ExecCopyBundleResource(self, source, dest, convert_to_binary): |
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"""Copies a resource file to the bundle/Resources directory, performing any |
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necessary compilation on each resource.""" |
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convert_to_binary = convert_to_binary == "True" |
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extension = os.path.splitext(source)[1].lower() |
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if os.path.isdir(source): |
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# Copy tree. |
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# TODO(thakis): This copies file attributes like mtime, while the |
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# single-file branch below doesn't. This should probably be changed to |
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# be consistent with the single-file branch. |
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if os.path.exists(dest): |
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shutil.rmtree(dest) |
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shutil.copytree(source, dest) |
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elif extension == ".xib": |
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return self._CopyXIBFile(source, dest) |
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elif extension == ".storyboard": |
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return self._CopyXIBFile(source, dest) |
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elif extension == ".strings" and not convert_to_binary: |
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self._CopyStringsFile(source, dest) |
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else: |
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if os.path.exists(dest): |
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os.unlink(dest) |
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shutil.copy(source, dest) |
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|
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if convert_to_binary and extension in (".plist", ".strings"): |
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self._ConvertToBinary(dest) |
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|
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def _CopyXIBFile(self, source, dest): |
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"""Compiles a XIB file with ibtool into a binary plist in the bundle.""" |
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|
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# ibtool sometimes crashes with relative paths. See crbug.com/314728. |
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base = os.path.dirname(os.path.realpath(__file__)) |
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if os.path.relpath(source): |
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source = os.path.join(base, source) |
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if os.path.relpath(dest): |
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dest = os.path.join(base, dest) |
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|
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args = ["xcrun", "ibtool", "--errors", "--warnings", "--notices"] |
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|
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if os.environ["XCODE_VERSION_ACTUAL"] > "0700": |
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args.extend(["--auto-activate-custom-fonts"]) |
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if "IPHONEOS_DEPLOYMENT_TARGET" in os.environ: |
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args.extend( |
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[ |
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"--target-device", |
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"iphone", |
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"--target-device", |
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"ipad", |
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"--minimum-deployment-target", |
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os.environ["IPHONEOS_DEPLOYMENT_TARGET"], |
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] |
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) |
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else: |
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args.extend( |
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[ |
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"--target-device", |
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"mac", |
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"--minimum-deployment-target", |
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os.environ["MACOSX_DEPLOYMENT_TARGET"], |
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] |
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) |
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|
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args.extend( |
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["--output-format", "human-readable-text", "--compile", dest, source] |
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) |
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ibtool_section_re = re.compile(r"/\*.*\*/") |
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ibtool_re = re.compile(r".*note:.*is clipping its content") |
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try: |
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stdout = subprocess.check_output(args) |
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except subprocess.CalledProcessError as e: |
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print(e.output) |
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raise |
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current_section_header = None |
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for line in stdout.splitlines(): |
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if ibtool_section_re.match(line): |
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current_section_header = line |
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elif not ibtool_re.match(line): |
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if current_section_header: |
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print(current_section_header) |
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current_section_header = None |
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print(line) |
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return 0 |
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|
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def _ConvertToBinary(self, dest): |
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subprocess.check_call( |
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["xcrun", "plutil", "-convert", "binary1", "-o", dest, dest] |
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) |
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|
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def _CopyStringsFile(self, source, dest): |
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"""Copies a .strings file using iconv to reconvert the input into UTF-16.""" |
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input_code = self._DetectInputEncoding(source) or "UTF-8" |
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|
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# Xcode's CpyCopyStringsFile / builtin-copyStrings seems to call |
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# CFPropertyListCreateFromXMLData() behind the scenes; at least it prints |
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# CFPropertyListCreateFromXMLData(): Old-style plist parser: missing |
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# semicolon in dictionary. |
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# on invalid files. Do the same kind of validation. |
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import CoreFoundation |
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|
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with open(source, "rb") as in_file: |
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s = in_file.read() |
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d = CoreFoundation.CFDataCreate(None, s, len(s)) |
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_, error = CoreFoundation.CFPropertyListCreateFromXMLData(None, d, 0, None) |
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if error: |
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return |
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|
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with open(dest, "wb") as fp: |
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fp.write(s.decode(input_code).encode("UTF-16")) |
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|
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def _DetectInputEncoding(self, file_name): |
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"""Reads the first few bytes from file_name and tries to guess the text |
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encoding. Returns None as a guess if it can't detect it.""" |
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with open(file_name, "rb") as fp: |
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try: |
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header = fp.read(3) |
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except Exception: |
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return None |
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if header.startswith(b"\xFE\xFF"): |
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return "UTF-16" |
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elif header.startswith(b"\xFF\xFE"): |
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return "UTF-16" |
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elif header.startswith(b"\xEF\xBB\xBF"): |
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return "UTF-8" |
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else: |
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return None |
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|
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def ExecCopyInfoPlist(self, source, dest, convert_to_binary, *keys): |
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"""Copies the |source| Info.plist to the destination directory |dest|.""" |
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# Read the source Info.plist into memory. |
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with open(source) as fd: |
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lines = fd.read() |
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|
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# Insert synthesized key/value pairs (e.g. BuildMachineOSBuild). |
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plist = plistlib.readPlistFromString(lines) |
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if keys: |
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plist.update(json.loads(keys[0])) |
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lines = plistlib.writePlistToString(plist) |
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|
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# Go through all the environment variables and replace them as variables in |
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# the file. |
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IDENT_RE = re.compile(r"[_/\s]") |
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for key in os.environ: |
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if key.startswith("_"): |
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continue |
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evar = "${%s}" % key |
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evalue = os.environ[key] |
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lines = lines.replace(lines, evar, evalue) |
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# Xcode supports various suffices on environment variables, which are |
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# all undocumented. :rfc1034identifier is used in the standard project |
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# template these days, and :identifier was used earlier. They are used to |
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# convert non-url characters into things that look like valid urls -- |
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# except that the replacement character for :identifier, '_' isn't valid |
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# in a URL either -- oops, hence :rfc1034identifier was born. |
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evar = "${%s:identifier}" % key |
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evalue = IDENT_RE.sub("_", os.environ[key]) |
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lines = lines.replace(lines, evar, evalue) |
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evar = "${%s:rfc1034identifier}" % key |
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evalue = IDENT_RE.sub("-", os.environ[key]) |
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lines = lines.replace(lines, evar, evalue) |
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# Remove any keys with values that haven't been replaced. |
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lines = lines.splitlines() |
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for i in range(len(lines)): |
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if lines[i].strip().startswith("<string>${"): |
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lines[i] = None |
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lines[i - 1] = None |
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lines = "\n".join(line for line in lines if line is not None) |
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# Write out the file with variables replaced. |
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with open(dest, "w") as fd: |
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fd.write(lines) |
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# Now write out PkgInfo file now that the Info.plist file has been |
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# "compiled". |
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self._WritePkgInfo(dest) |
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if convert_to_binary == "True": |
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self._ConvertToBinary(dest) |
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def _WritePkgInfo(self, info_plist): |
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"""This writes the PkgInfo file from the data stored in Info.plist.""" |
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plist = plistlib.readPlist(info_plist) |
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if not plist: |
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return |
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# Only create PkgInfo for executable types. |
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package_type = plist["CFBundlePackageType"] |
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if package_type != "APPL": |
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return |
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# The format of PkgInfo is eight characters, representing the bundle type |
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# and bundle signature, each four characters. If that is missing, four |
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# '?' characters are used instead. |
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signature_code = plist.get("CFBundleSignature", "????") |
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if len(signature_code) != 4: # Wrong length resets everything, too. |
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signature_code = "?" * 4 |
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dest = os.path.join(os.path.dirname(info_plist), "PkgInfo") |
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with open(dest, "w") as fp: |
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fp.write(f"{package_type}{signature_code}") |
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def ExecFlock(self, lockfile, *cmd_list): |
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"""Emulates the most basic behavior of Linux's flock(1).""" |
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# Rely on exception handling to report errors. |
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fd = os.open(lockfile, os.O_RDONLY | os.O_NOCTTY | os.O_CREAT, 0o666) |
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fcntl.flock(fd, fcntl.LOCK_EX) |
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return subprocess.call(cmd_list) |
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def ExecFilterLibtool(self, *cmd_list): |
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"""Calls libtool and filters out '/path/to/libtool: file: foo.o has no |
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symbols'.""" |
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libtool_re = re.compile( |
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r"^.*libtool: (?:for architecture: \S* )?" r"file: .* has no symbols$" |
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) |
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libtool_re5 = re.compile( |
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r"^.*libtool: warning for library: " |
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+ r".* the table of contents is empty " |
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+ r"\(no object file members in the library define global symbols\)$" |
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) |
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env = os.environ.copy() |
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# Ref: |
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# http://www.opensource.apple.com/source/cctools/cctools-809/misc/libtool.c |
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# The problem with this flag is that it resets the file mtime on the file to |
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# epoch=0, e.g. 1970-1-1 or 1969-12-31 depending on timezone. |
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env["ZERO_AR_DATE"] = "1" |
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libtoolout = subprocess.Popen(cmd_list, stderr=subprocess.PIPE, env=env) |
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err = libtoolout.communicate()[1].decode("utf-8") |
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for line in err.splitlines(): |
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if not libtool_re.match(line) and not libtool_re5.match(line): |
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print(line, file=sys.stderr) |
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# Unconditionally touch the output .a file on the command line if present |
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# and the command succeeded. A bit hacky. |
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if not libtoolout.returncode: |
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for i in range(len(cmd_list) - 1): |
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if cmd_list[i] == "-o" and cmd_list[i + 1].endswith(".a"): |
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os.utime(cmd_list[i + 1], None) |
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break |
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return libtoolout.returncode |
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def ExecPackageIosFramework(self, framework): |
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# Find the name of the binary based on the part before the ".framework". |
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binary = os.path.basename(framework).split(".")[0] |
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module_path = os.path.join(framework, "Modules") |
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if not os.path.exists(module_path): |
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os.mkdir(module_path) |
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module_template = ( |
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"framework module %s {\n" |
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' umbrella header "%s.h"\n' |
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"\n" |
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" export *\n" |
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" module * { export * }\n" |
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"}\n" % (binary, binary) |
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) |
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with open(os.path.join(module_path, "module.modulemap"), "w") as module_file: |
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module_file.write(module_template) |
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|
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def ExecPackageFramework(self, framework, version): |
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"""Takes a path to Something.framework and the Current version of that and |
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sets up all the symlinks.""" |
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# Find the name of the binary based on the part before the ".framework". |
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binary = os.path.basename(framework).split(".")[0] |
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|
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CURRENT = "Current" |
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RESOURCES = "Resources" |
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VERSIONS = "Versions" |
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|
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if not os.path.exists(os.path.join(framework, VERSIONS, version, binary)): |
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# Binary-less frameworks don't seem to contain symlinks (see e.g. |
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# chromium's out/Debug/org.chromium.Chromium.manifest/ bundle). |
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return |
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|
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# Move into the framework directory to set the symlinks correctly. |
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pwd = os.getcwd() |
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os.chdir(framework) |
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|
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# Set up the Current version. |
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self._Relink(version, os.path.join(VERSIONS, CURRENT)) |
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|
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# Set up the root symlinks. |
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self._Relink(os.path.join(VERSIONS, CURRENT, binary), binary) |
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self._Relink(os.path.join(VERSIONS, CURRENT, RESOURCES), RESOURCES) |
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|
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# Back to where we were before! |
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os.chdir(pwd) |
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|
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def _Relink(self, dest, link): |
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"""Creates a symlink to |dest| named |link|. If |link| already exists, |
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it is overwritten.""" |
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if os.path.lexists(link): |
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os.remove(link) |
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os.symlink(dest, link) |
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|
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def ExecCompileIosFrameworkHeaderMap(self, out, framework, *all_headers): |
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framework_name = os.path.basename(framework).split(".")[0] |
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all_headers = [os.path.abspath(header) for header in all_headers] |
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filelist = {} |
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for header in all_headers: |
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filename = os.path.basename(header) |
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filelist[filename] = header |
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filelist[os.path.join(framework_name, filename)] = header |
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WriteHmap(out, filelist) |
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|
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def ExecCopyIosFrameworkHeaders(self, framework, *copy_headers): |
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header_path = os.path.join(framework, "Headers") |
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if not os.path.exists(header_path): |
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os.makedirs(header_path) |
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for header in copy_headers: |
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shutil.copy(header, os.path.join(header_path, os.path.basename(header))) |
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|
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def ExecCompileXcassets(self, keys, *inputs): |
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"""Compiles multiple .xcassets files into a single .car file. |
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|
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This invokes 'actool' to compile all the inputs .xcassets files. The |
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|keys| arguments is a json-encoded dictionary of extra arguments to |
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pass to 'actool' when the asset catalogs contains an application icon |
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or a launch image. |
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Note that 'actool' does not create the Assets.car file if the asset |
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catalogs does not contains imageset. |
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""" |
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command_line = [ |
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"xcrun", |
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"actool", |
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"--output-format", |
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"human-readable-text", |
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"--compress-pngs", |
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"--notices", |
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"--warnings", |
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"--errors", |
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] |
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is_iphone_target = "IPHONEOS_DEPLOYMENT_TARGET" in os.environ |
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if is_iphone_target: |
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platform = os.environ["CONFIGURATION"].split("-")[-1] |
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if platform not in ("iphoneos", "iphonesimulator"): |
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platform = "iphonesimulator" |
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command_line.extend( |
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[ |
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"--platform", |
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platform, |
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"--target-device", |
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"iphone", |
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"--target-device", |
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"ipad", |
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"--minimum-deployment-target", |
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os.environ["IPHONEOS_DEPLOYMENT_TARGET"], |
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"--compile", |
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os.path.abspath(os.environ["CONTENTS_FOLDER_PATH"]), |
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] |
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) |
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else: |
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command_line.extend( |
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[ |
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"--platform", |
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"macosx", |
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"--target-device", |
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"mac", |
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"--minimum-deployment-target", |
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os.environ["MACOSX_DEPLOYMENT_TARGET"], |
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"--compile", |
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os.path.abspath(os.environ["UNLOCALIZED_RESOURCES_FOLDER_PATH"]), |
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] |
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) |
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if keys: |
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keys = json.loads(keys) |
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for key, value in keys.items(): |
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arg_name = "--" + key |
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if isinstance(value, bool): |
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if value: |
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command_line.append(arg_name) |
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elif isinstance(value, list): |
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for v in value: |
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command_line.append(arg_name) |
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command_line.append(str(v)) |
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else: |
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command_line.append(arg_name) |
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command_line.append(str(value)) |
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# Note: actool crashes if inputs path are relative, so use os.path.abspath |
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# to get absolute path name for inputs. |
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command_line.extend(map(os.path.abspath, inputs)) |
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subprocess.check_call(command_line) |
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|
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def ExecMergeInfoPlist(self, output, *inputs): |
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"""Merge multiple .plist files into a single .plist file.""" |
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merged_plist = {} |
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for path in inputs: |
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plist = self._LoadPlistMaybeBinary(path) |
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self._MergePlist(merged_plist, plist) |
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plistlib.writePlist(merged_plist, output) |
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|
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def ExecCodeSignBundle(self, key, entitlements, provisioning, path, preserve): |
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"""Code sign a bundle. |
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|
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This function tries to code sign an iOS bundle, following the same |
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algorithm as Xcode: |
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1. pick the provisioning profile that best match the bundle identifier, |
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and copy it into the bundle as embedded.mobileprovision, |
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2. copy Entitlements.plist from user or SDK next to the bundle, |
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3. code sign the bundle. |
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""" |
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substitutions, overrides = self._InstallProvisioningProfile( |
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provisioning, self._GetCFBundleIdentifier() |
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) |
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entitlements_path = self._InstallEntitlements( |
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entitlements, substitutions, overrides |
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) |
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|
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args = ["codesign", "--force", "--sign", key] |
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if preserve == "True": |
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args.extend(["--deep", "--preserve-metadata=identifier,entitlements"]) |
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else: |
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args.extend(["--entitlements", entitlements_path]) |
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args.extend(["--timestamp=none", path]) |
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subprocess.check_call(args) |
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|
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def _InstallProvisioningProfile(self, profile, bundle_identifier): |
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"""Installs embedded.mobileprovision into the bundle. |
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|
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Args: |
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profile: string, optional, short name of the .mobileprovision file |
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to use, if empty or the file is missing, the best file installed |
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will be used |
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bundle_identifier: string, value of CFBundleIdentifier from Info.plist |
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|
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Returns: |
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A tuple containing two dictionary: variables substitutions and values |
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to overrides when generating the entitlements file. |
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""" |
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source_path, provisioning_data, team_id = self._FindProvisioningProfile( |
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profile, bundle_identifier |
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) |
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target_path = os.path.join( |
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os.environ["BUILT_PRODUCTS_DIR"], |
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os.environ["CONTENTS_FOLDER_PATH"], |
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"embedded.mobileprovision", |
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) |
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shutil.copy2(source_path, target_path) |
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substitutions = self._GetSubstitutions(bundle_identifier, team_id + ".") |
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return substitutions, provisioning_data["Entitlements"] |
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|
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def _FindProvisioningProfile(self, profile, bundle_identifier): |
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"""Finds the .mobileprovision file to use for signing the bundle. |
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|
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Checks all the installed provisioning profiles (or if the user specified |
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the PROVISIONING_PROFILE variable, only consult it) and select the most |
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specific that correspond to the bundle identifier. |
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|
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Args: |
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profile: string, optional, short name of the .mobileprovision file |
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to use, if empty or the file is missing, the best file installed |
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will be used |
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bundle_identifier: string, value of CFBundleIdentifier from Info.plist |
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|
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Returns: |
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A tuple of the path to the selected provisioning profile, the data of |
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the embedded plist in the provisioning profile and the team identifier |
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to use for code signing. |
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|
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Raises: |
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SystemExit: if no .mobileprovision can be used to sign the bundle. |
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""" |
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profiles_dir = os.path.join( |
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os.environ["HOME"], "Library", "MobileDevice", "Provisioning Profiles" |
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) |
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if not os.path.isdir(profiles_dir): |
|
print( |
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"cannot find mobile provisioning for %s" % (bundle_identifier), |
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file=sys.stderr, |
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) |
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sys.exit(1) |
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provisioning_profiles = None |
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if profile: |
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profile_path = os.path.join(profiles_dir, profile + ".mobileprovision") |
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if os.path.exists(profile_path): |
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provisioning_profiles = [profile_path] |
|
if not provisioning_profiles: |
|
provisioning_profiles = glob.glob( |
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os.path.join(profiles_dir, "*.mobileprovision") |
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) |
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valid_provisioning_profiles = {} |
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for profile_path in provisioning_profiles: |
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profile_data = self._LoadProvisioningProfile(profile_path) |
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app_id_pattern = profile_data.get("Entitlements", {}).get( |
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"application-identifier", "" |
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) |
|
for team_identifier in profile_data.get("TeamIdentifier", []): |
|
app_id = f"{team_identifier}.{bundle_identifier}" |
|
if fnmatch.fnmatch(app_id, app_id_pattern): |
|
valid_provisioning_profiles[app_id_pattern] = ( |
|
profile_path, |
|
profile_data, |
|
team_identifier, |
|
) |
|
if not valid_provisioning_profiles: |
|
print( |
|
"cannot find mobile provisioning for %s" % (bundle_identifier), |
|
file=sys.stderr, |
|
) |
|
sys.exit(1) |
|
# If the user has multiple provisioning profiles installed that can be |
|
# used for ${bundle_identifier}, pick the most specific one (ie. the |
|
# provisioning profile whose pattern is the longest). |
|
selected_key = max(valid_provisioning_profiles, key=lambda v: len(v)) |
|
return valid_provisioning_profiles[selected_key] |
|
|
|
def _LoadProvisioningProfile(self, profile_path): |
|
"""Extracts the plist embedded in a provisioning profile. |
|
|
|
Args: |
|
profile_path: string, path to the .mobileprovision file |
|
|
|
Returns: |
|
Content of the plist embedded in the provisioning profile as a dictionary. |
|
""" |
|
with tempfile.NamedTemporaryFile() as temp: |
|
subprocess.check_call( |
|
["security", "cms", "-D", "-i", profile_path, "-o", temp.name] |
|
) |
|
return self._LoadPlistMaybeBinary(temp.name) |
|
|
|
def _MergePlist(self, merged_plist, plist): |
|
"""Merge |plist| into |merged_plist|.""" |
|
for key, value in plist.items(): |
|
if isinstance(value, dict): |
|
merged_value = merged_plist.get(key, {}) |
|
if isinstance(merged_value, dict): |
|
self._MergePlist(merged_value, value) |
|
merged_plist[key] = merged_value |
|
else: |
|
merged_plist[key] = value |
|
else: |
|
merged_plist[key] = value |
|
|
|
def _LoadPlistMaybeBinary(self, plist_path): |
|
"""Loads into a memory a plist possibly encoded in binary format. |
|
|
|
This is a wrapper around plistlib.readPlist that tries to convert the |
|
plist to the XML format if it can't be parsed (assuming that it is in |
|
the binary format). |
|
|
|
Args: |
|
plist_path: string, path to a plist file, in XML or binary format |
|
|
|
Returns: |
|
Content of the plist as a dictionary. |
|
""" |
|
try: |
|
# First, try to read the file using plistlib that only supports XML, |
|
# and if an exception is raised, convert a temporary copy to XML and |
|
# load that copy. |
|
return plistlib.readPlist(plist_path) |
|
except Exception: |
|
pass |
|
with tempfile.NamedTemporaryFile() as temp: |
|
shutil.copy2(plist_path, temp.name) |
|
subprocess.check_call(["plutil", "-convert", "xml1", temp.name]) |
|
return plistlib.readPlist(temp.name) |
|
|
|
def _GetSubstitutions(self, bundle_identifier, app_identifier_prefix): |
|
"""Constructs a dictionary of variable substitutions for Entitlements.plist. |
|
|
|
Args: |
|
bundle_identifier: string, value of CFBundleIdentifier from Info.plist |
|
app_identifier_prefix: string, value for AppIdentifierPrefix |
|
|
|
Returns: |
|
Dictionary of substitutions to apply when generating Entitlements.plist. |
|
""" |
|
return { |
|
"CFBundleIdentifier": bundle_identifier, |
|
"AppIdentifierPrefix": app_identifier_prefix, |
|
} |
|
|
|
def _GetCFBundleIdentifier(self): |
|
"""Extracts CFBundleIdentifier value from Info.plist in the bundle. |
|
|
|
Returns: |
|
Value of CFBundleIdentifier in the Info.plist located in the bundle. |
|
""" |
|
info_plist_path = os.path.join( |
|
os.environ["TARGET_BUILD_DIR"], os.environ["INFOPLIST_PATH"] |
|
) |
|
info_plist_data = self._LoadPlistMaybeBinary(info_plist_path) |
|
return info_plist_data["CFBundleIdentifier"] |
|
|
|
def _InstallEntitlements(self, entitlements, substitutions, overrides): |
|
"""Generates and install the ${BundleName}.xcent entitlements file. |
|
|
|
Expands variables "$(variable)" pattern in the source entitlements file, |
|
add extra entitlements defined in the .mobileprovision file and the copy |
|
the generated plist to "${BundlePath}.xcent". |
|
|
|
Args: |
|
entitlements: string, optional, path to the Entitlements.plist template |
|
to use, defaults to "${SDKROOT}/Entitlements.plist" |
|
substitutions: dictionary, variable substitutions |
|
overrides: dictionary, values to add to the entitlements |
|
|
|
Returns: |
|
Path to the generated entitlements file. |
|
""" |
|
source_path = entitlements |
|
target_path = os.path.join( |
|
os.environ["BUILT_PRODUCTS_DIR"], os.environ["PRODUCT_NAME"] + ".xcent" |
|
) |
|
if not source_path: |
|
source_path = os.path.join(os.environ["SDKROOT"], "Entitlements.plist") |
|
shutil.copy2(source_path, target_path) |
|
data = self._LoadPlistMaybeBinary(target_path) |
|
data = self._ExpandVariables(data, substitutions) |
|
if overrides: |
|
for key in overrides: |
|
if key not in data: |
|
data[key] = overrides[key] |
|
plistlib.writePlist(data, target_path) |
|
return target_path |
|
|
|
def _ExpandVariables(self, data, substitutions): |
|
"""Expands variables "$(variable)" in data. |
|
|
|
Args: |
|
data: object, can be either string, list or dictionary |
|
substitutions: dictionary, variable substitutions to perform |
|
|
|
Returns: |
|
Copy of data where each references to "$(variable)" has been replaced |
|
by the corresponding value found in substitutions, or left intact if |
|
the key was not found. |
|
""" |
|
if isinstance(data, str): |
|
for key, value in substitutions.items(): |
|
data = data.replace("$(%s)" % key, value) |
|
return data |
|
if isinstance(data, list): |
|
return [self._ExpandVariables(v, substitutions) for v in data] |
|
if isinstance(data, dict): |
|
return {k: self._ExpandVariables(data[k], substitutions) for k in data} |
|
return data |
|
|
|
|
|
def NextGreaterPowerOf2(x): |
|
return 2 ** (x).bit_length() |
|
|
|
|
|
def WriteHmap(output_name, filelist): |
|
"""Generates a header map based on |filelist|. |
|
|
|
Per Mark Mentovai: |
|
A header map is structured essentially as a hash table, keyed by names used |
|
in #includes, and providing pathnames to the actual files. |
|
|
|
The implementation below and the comment above comes from inspecting: |
|
http://www.opensource.apple.com/source/distcc/distcc-2503/distcc_dist/include_server/headermap.py?txt |
|
while also looking at the implementation in clang in: |
|
https://llvm.org/svn/llvm-project/cfe/trunk/lib/Lex/HeaderMap.cpp |
|
""" |
|
magic = 1751998832 |
|
version = 1 |
|
_reserved = 0 |
|
count = len(filelist) |
|
capacity = NextGreaterPowerOf2(count) |
|
strings_offset = 24 + (12 * capacity) |
|
max_value_length = max(len(value) for value in filelist.values()) |
|
|
|
out = open(output_name, "wb") |
|
out.write( |
|
struct.pack( |
|
"<LHHLLLL", |
|
magic, |
|
version, |
|
_reserved, |
|
strings_offset, |
|
count, |
|
capacity, |
|
max_value_length, |
|
) |
|
) |
|
|
|
# Create empty hashmap buckets. |
|
buckets = [None] * capacity |
|
for file, path in filelist.items(): |
|
key = 0 |
|
for c in file: |
|
key += ord(c.lower()) * 13 |
|
|
|
# Fill next empty bucket. |
|
while buckets[key & capacity - 1] is not None: |
|
key = key + 1 |
|
buckets[key & capacity - 1] = (file, path) |
|
|
|
next_offset = 1 |
|
for bucket in buckets: |
|
if bucket is None: |
|
out.write(struct.pack("<LLL", 0, 0, 0)) |
|
else: |
|
(file, path) = bucket |
|
key_offset = next_offset |
|
prefix_offset = key_offset + len(file) + 1 |
|
suffix_offset = prefix_offset + len(os.path.dirname(path) + os.sep) + 1 |
|
next_offset = suffix_offset + len(os.path.basename(path)) + 1 |
|
out.write(struct.pack("<LLL", key_offset, prefix_offset, suffix_offset)) |
|
|
|
# Pad byte since next offset starts at 1. |
|
out.write(struct.pack("<x")) |
|
|
|
for bucket in buckets: |
|
if bucket is not None: |
|
(file, path) = bucket |
|
out.write(struct.pack("<%ds" % len(file), file)) |
|
out.write(struct.pack("<s", "\0")) |
|
base = os.path.dirname(path) + os.sep |
|
out.write(struct.pack("<%ds" % len(base), base)) |
|
out.write(struct.pack("<s", "\0")) |
|
path = os.path.basename(path) |
|
out.write(struct.pack("<%ds" % len(path), path)) |
|
out.write(struct.pack("<s", "\0")) |
|
|
|
|
|
if __name__ == "__main__": |
|
sys.exit(main(sys.argv[1:]))
|
|
|