Creation of LTS branch "lts_2020_02_25"20200225

  - 0033c9ea91a52ade7c6b725aa2ef3cbe15463421 Fix build on FreeBSD/powerpc (#616) by kgotlinux <60880393+kgotlinux@users.noreply.github.com>
  - 0d5ce2797eb695aee7e019e25323251ef6ffc277 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - b69c7d880caddfc25bf348dbcfe9d45fdd8bc6e6 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 2a5633fc077a58528cdbfe78720f3f6bfdc6044d Merge "Export of internal Abseil changes" by Xiaoyi Zhang <zhangxy@google.com>
  - f9b3d6e493c1b6ab3dbdab71c5f8fa849db4abaf Add RISCV support to GetProgramCounter() (#621) by Khem Raj <raj.khem@gmail.com>
  - 0232c87f21c26718aa3eb2d86678070f3b498a4e Add missing ABSL_HAVE_VDSO_SUPPORT conditional (#622) by Sinan Kaya <41809318+franksinankaya@users.noreply.github.com>
  - 3c814105108680997d0821077694f663693b5382 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - c44657f55692eddf5504156645d1f4ec7b3acabd Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 98eb410c93ad059f9bba1bf43f5bb916fc92a5ea Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - bf78e977309c4cb946914b456404141ddac1c302 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - d95d1567165d449e4c213ea31a15cbb112a9865f Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 24713a7036a81498334807fa5c7ad3cb7c643711 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 72382c21fefed981b4b8a2a1b82e2d231c2c2e39 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 08a7e7bf972c8451855a5022f2faf3d3655db015 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 36bcd9599b3f48c99357ba61cf33584889306d6a Fix pointer format specifier in documentation (#614) by Andre Nguyen <andre-nguyen@users.noreply.github.com>
  - 0f86336b6939ea673cc1cbe29189286cae67d63a Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - c512f118dde6ffd51cb7d8ac8804bbaf4d266c3a Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 37dd2562ec830d547a1524bb306be313ac3f2556 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 44427702614d7b86b064ba06a390f5eb2f85dbf6 fix: Add support for more ARM processors detection (#608) by Andre Nguyen <andre-nguyen@users.noreply.github.com>
  - 159bf2bf6d1cc8087e02468d071e94d1177d1bae Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - a2e6adecc294dc4cd98cc285a9134ce58e0f2ad0 Use https links. (#586) by nlewycky <nicholas@mxc.ca>
  - 564001ae506a17c51fa1223684a78f05f91d3d91 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - b3aaac8a37c467a1125c794196caa90d0957bdc3 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 63ee2f8877915a3565c29707dba8fe4d7822596a Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - a048203a881f11f4b7b8df5fb563aec85522f8db Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 1de0166368e2ae67347f92099d6dca3ab3a4a496 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - ad904b6cd3906ddf79878003d92b7bc08d7786ae Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 29235139149790f5afc430c11cec8f1eb1677607 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - bf86cfe165ef7d70dfe68f0b8fc0c018bc79a577 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 12bc53e0318d80569270a5b26ccbc62b52022b89 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 1e39f8626a4dadec1f56920b999dd4c3cfae333e Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 77f87009a34c745255bd84d8f2647040d831a2b3 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - d659fe54b35ab9b8e35c72e50a4b8814167d5a84 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - a4b757b5d42694306a9de853cee0a5fba9c7bbe9 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 0514227d2547793b23e209809276375e41c76617 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 7f4fe64af80fe3c84db8ea938276c3690573c45e Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 16d9fd58a51c6083234e2e9f8f50e49ed5ed02e4 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - bcaae6009c0833b73c6fa7bdd972921d8081a724 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 8ba96a8244bbe334d09542e92d566673a65c1f78 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 2103fd9acdf58279f739860bff3f8c9f4b845605 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 3df7b52a6ada51a72a23796b844549a7b282f1b8 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - fa8c75182fbfdeddb2485fc0d53baeda3f40b7a3 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 85092b4b648ca729c6263c4a302a41dfff28705e Fix Conan builds (#400) by Adrian Ostrowski <adr.ostrowski@gmail.com>
  - e96ae2203b80d5ae2e0b7abe0c77b722b224b16d Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 20de2db748ca0471cfb61cb53e813dd12938c12b Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 846e5dbedac123d12455adcfe6f53c8b5dcbfeef Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 8207907f4f7fbaeeaa2b7340c76875e06fd345ba Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 078b89b3c046d230ef3ad39494e5852184eb528b Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 19b021cb3ff23048dfbe236a4e611925d8930831 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - ecc0033b54847f6c9ee37dbb0be8aa17e5b6d37b Always enable proper symbolize implementation on Windows ... by Loo Rong Jie <loorongjie@gmail.com>
  - 2796d500aea5a31d26b8b24a33fab7a1c8fa2f32 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - e4c8d0eb8ef4acb5d7a4252b3b87feb391ef7e41 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - a15364ce4d88534ae2295127e5d8e32aefb6b446 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - ab3552a18964e7063c8324f45b3896a6a20b08a8 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - e9f9000c7c80993cb589d011616b7a8016e42f4a Fix ABSL_WAITER_MODE detection for mingw (#342) by Joe Sylve <Joe.Sylve@gmail.com>
  - abea769b551f7a100f540967cb95debdb0080df8 Fix ABSL_HAVE_ALARM check on mingw (#341) by Joe Sylve <Joe.Sylve@gmail.com>
  - 25597bdfc148e91e27678ec30efa52f4fc8c164f Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - aad33fefaa8f744d71ce747a53717b835bdf8e84 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 8fe7214fe2d7a45ecc4d85f6a524c6b1532426de Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - debac94cfb5a0fa75d1d97c399682bd1c72e3191 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 882b3501a31eb0e4ae4213afb91a0e43feda7d5f Fix spelling errors (#384) by Sungmann Cho <55860394+chosungmann@users.noreply.github.com>
  - 502efe6d7841bff82b1aeef5500491fe9a48c635 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - ccdd1d57b6386ebc26fb0c7d99b604672437c124 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - ddf8e52a2918dd0ccec75d3e2426125fa3926724 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 6ec136281086b71da32b5fb068bd6e46b78a5c79 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - ac78ffc3bc0a8b295cab9a03817760fd460df2a1 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 5374c56e5196320681993869e3126b51edac2a43 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 97c1664b4bbab5f78fac2b151ab02656268fb34b Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 325fd7b042ff4ec34f7dd32e602cd81ad0e24b22 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 83c1d65c90a92aa49632b9ac5a793214bb0768bc Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - eb6b7bd23bc0815bfd784e1a74021ce166765280 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 9ddac555b7861dc178d0dbe758a1cfbed718784b Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 1948f6f967e34db9793cfa8b4bcbaf370d039fd8 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - a0d1e098c2f99694fa399b175a7ccf920762030e Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 2d2d7fbc283315b676159716376e739d3d23ed94 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 0302d1e5fa4fcdd1763b7d1bb3212943b1ae911d supppress unused variable warning for gcc (#372) by Martin <pizzard@users.noreply.github.com>
  - 262d74ba81b1fc4d71f459555cde8ecb39786d68 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - f0afae0d49af3e15a7169e019634d7719143d94d Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 0e7afdcbd24c7e5b7cab4e0217d8886f1525b520 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 9a41ffdd3a0ccbcdd29c4e3886b28e06f2cd9c66 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 36910d3d7e9fccadd6603f232d0c4f54dcd47c7e [bazel] Add fixes for --incompatible_load_cc_rules_from_b... by Yannic <contact@yannic-bonenberger.com>
  - aae8143cf9aa611f70d7ea9b95b8b8b383b2271a Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - d9aa92d7fb324314f9df487ac23d32a25650b742 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 321ab5303023c86cd15d9ddc5740fb4b4fde32e1 Export of internal Abseil changes by Abseil Team <absl-team@google.com>
  - 4ef574064e75b86f115549e9eb4c7e806781b3ab Export of internal Abseil changes by Abseil Team <absl-team@google.com>

GitOrigin-RevId: 0033c9ea91a52ade7c6b725aa2ef3cbe15463421
Change-Id: I8a2b70063cb3ab40c6943a6db0fe40cae71ed8d7

1 files changed, 229 insertions, 0 deletions

diff --git a/absl/abseil.podspec.gen.py b/absl/abseil.podspec.gen.py
new file mode 100755
index 00000000..6aefb794
--- /dev/null
+++ b/absl/abseil.podspec.gen.py
@@ -0,0 +1,229 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""This script generates abseil.podspec from all BUILD.bazel files.
+
+This is expected to run on abseil git repository with Bazel 1.0 on Linux.
+It recursively analyzes BUILD.bazel files using query command of Bazel to
+dump its build rules in XML format. From these rules, it constructs podspec
+structure.
+"""
+
+import argparse
+import collections
+import os
+import re
+import subprocess
+import xml.etree.ElementTree
+
+# Template of root podspec.
+SPEC_TEMPLATE = """
+# This file has been automatically generated from a script.
+# Please make modifications to `abseil.podspec.gen.py` instead.
+Pod::Spec.new do |s|
+  s.name     = 'abseil'
+  s.version  = '${version}'
+  s.summary  = 'Abseil Common Libraries (C++) from Google'
+  s.homepage = 'https://abseil.io'
+  s.license  = 'Apache License, Version 2.0'
+  s.authors  = { 'Abseil Team' => 'abseil-io@googlegroups.com' }
+  s.source = {
+    :git => 'https://github.com/abseil/abseil-cpp.git',
+    :tag => '${tag}',
+  }
+  s.module_name = 'absl'
+  s.header_mappings_dir = 'absl'
+  s.header_dir = 'absl'
+  s.libraries = 'c++'
+  s.compiler_flags = '-Wno-everything'
+  s.pod_target_xcconfig = {
+    'USER_HEADER_SEARCH_PATHS' => '$(inherited) "$(PODS_TARGET_SRCROOT)"',
+    'USE_HEADERMAP' => 'NO',
+    'ALWAYS_SEARCH_USER_PATHS' => 'NO',
+  }
+  s.ios.deployment_target = '7.0'
+  s.osx.deployment_target = '10.9'
+  s.tvos.deployment_target = '9.0'
+  s.watchos.deployment_target = '2.0'
+"""
+
+# Rule object representing the rule of Bazel BUILD.
+Rule = collections.namedtuple(
+    "Rule", "type name package srcs hdrs textual_hdrs deps visibility testonly")
+
+
+def get_elem_value(elem, name):
+  """Returns the value of XML element with the given name."""
+  for child in elem:
+    if child.attrib.get("name") != name:
+      continue
+    if child.tag == "string":
+      return child.attrib.get("value")
+    if child.tag == "boolean":
+      return child.attrib.get("value") == "true"
+    if child.tag == "list":
+      return [nested_child.attrib.get("value") for nested_child in child]
+    raise "Cannot recognize tag: " + child.tag
+  return None
+
+
+def normalize_paths(paths):
+  """Returns the list of normalized path."""
+  # e.g. ["//absl/strings:dir/header.h"] -> ["absl/strings/dir/header.h"]
+  return [path.lstrip("/").replace(":", "/") for path in paths]
+
+
+def parse_rule(elem, package):
+  """Returns a rule from bazel XML rule."""
+  return Rule(
+      type=elem.attrib["class"],
+      name=get_elem_value(elem, "name"),
+      package=package,
+      srcs=normalize_paths(get_elem_value(elem, "srcs") or []),
+      hdrs=normalize_paths(get_elem_value(elem, "hdrs") or []),
+      textual_hdrs=normalize_paths(get_elem_value(elem, "textual_hdrs") or []),
+      deps=get_elem_value(elem, "deps") or [],
+      visibility=get_elem_value(elem, "visibility") or [],
+      testonly=get_elem_value(elem, "testonly") or False)
+
+
+def read_build(package):
+  """Runs bazel query on given package file and returns all cc rules."""
+  result = subprocess.check_output(
+      ["bazel", "query", package + ":all", "--output", "xml"])
+  root = xml.etree.ElementTree.fromstring(result)
+  return [
+      parse_rule(elem, package)
+      for elem in root
+      if elem.tag == "rule" and elem.attrib["class"].startswith("cc_")
+  ]
+
+
+def collect_rules(root_path):
+  """Collects and returns all rules from root path recursively."""
+  rules = []
+  for cur, _, _ in os.walk(root_path):
+    build_path = os.path.join(cur, "BUILD.bazel")
+    if os.path.exists(build_path):
+      rules.extend(read_build("//" + cur))
+  return rules
+
+
+def relevant_rule(rule):
+  """Returns true if a given rule is relevant when generating a podspec."""
+  return (
+      # cc_library only (ignore cc_test, cc_binary)
+      rule.type == "cc_library" and
+      # ignore empty rule
+      (rule.hdrs + rule.textual_hdrs + rule.srcs) and
+      # ignore test-only rule
+      not rule.testonly)
+
+
+def get_spec_var(depth):
+  """Returns the name of variable for spec with given depth."""
+  return "s" if depth == 0 else "s{}".format(depth)
+
+
+def get_spec_name(label):
+  """Converts the label of bazel rule to the name of podspec."""
+  assert label.startswith("//absl/"), "{} doesn't start with //absl/".format(
+      label)
+  # e.g. //absl/apple/banana -> abseil/apple/banana
+  return "abseil/" + label[7:]
+
+
+def write_podspec(f, rules, args):
+  """Writes a podspec from given rules and args."""
+  rule_dir = build_rule_directory(rules)["abseil"]
+  # Write root part with given arguments
+  spec = re.sub(r"\$\{(\w+)\}", lambda x: args[x.group(1)],
+                SPEC_TEMPLATE).lstrip()
+  f.write(spec)
+  # Write all target rules
+  write_podspec_map(f, rule_dir, 0)
+  f.write("end\n")
+
+
+def build_rule_directory(rules):
+  """Builds a tree-style rule directory from given rules."""
+  rule_dir = {}
+  for rule in rules:
+    cur = rule_dir
+    for frag in get_spec_name(rule.package).split("/"):
+      cur = cur.setdefault(frag, {})
+    cur[rule.name] = rule
+  return rule_dir
+
+
+def write_podspec_map(f, cur_map, depth):
+  """Writes podspec from rule map recursively."""
+  for key, value in sorted(cur_map.items()):
+    indent = "  " * (depth + 1)
+    f.write("{indent}{var0}.subspec '{key}' do |{var1}|\n".format(
+        indent=indent,
+        key=key,
+        var0=get_spec_var(depth),
+        var1=get_spec_var(depth + 1)))
+    if isinstance(value, dict):
+      write_podspec_map(f, value, depth + 1)
+    else:
+      write_podspec_rule(f, value, depth + 1)
+    f.write("{indent}end\n".format(indent=indent))
+
+
+def write_podspec_rule(f, rule, depth):
+  """Writes podspec from given rule."""
+  indent = "  " * (depth + 1)
+  spec_var = get_spec_var(depth)
+  # Puts all files in hdrs, textual_hdrs, and srcs into source_files.
+  # Since CocoaPods treats header_files a bit differently from bazel,
+  # this won't generate a header_files field so that all source_files
+  # are considered as header files.
+  srcs = sorted(set(rule.hdrs + rule.textual_hdrs + rule.srcs))
+  write_indented_list(
+      f, "{indent}{var}.source_files = ".format(indent=indent, var=spec_var),
+      srcs)
+  # Writes dependencies of this rule.
+  for dep in sorted(rule.deps):
+    name = get_spec_name(dep.replace(":", "/"))
+    f.write("{indent}{var}.dependency '{dep}'\n".format(
+        indent=indent, var=spec_var, dep=name))
+
+
+def write_indented_list(f, leading, values):
+  """Writes leading values in an indented style."""
+  f.write(leading)
+  f.write((",\n" + " " * len(leading)).join("'{}'".format(v) for v in values))
+  f.write("\n")
+
+
+def generate(args):
+  """Generates a podspec file from all BUILD files under absl directory."""
+  rules = filter(relevant_rule, collect_rules("absl"))
+  with open(args.output, "wt") as f:
+    write_podspec(f, rules, vars(args))
+
+
+def main():
+  parser = argparse.ArgumentParser(
+      description="Generates abseil.podspec from BUILD.bazel")
+  parser.add_argument(
+      "-v", "--version", help="The version of podspec", required=True)
+  parser.add_argument(
+      "-t",
+      "--tag",
+      default=None,
+      help="The name of git tag (default: version)")
+  parser.add_argument(
+      "-o",
+      "--output",
+      default="abseil.podspec",
+      help="The name of output file (default: abseil.podspec)")
+  args = parser.parse_args()
+  if args.tag is None:
+    args.tag = args.version
+  generate(args)
+
+
+if __name__ == "__main__":
+  main()