bazel/glog.bzl

   1 # Implement a macro glog_library() that the BUILD file can load.
   2 # By default, glog is built with gflags support.  You can change this behavior by using
   3 # glog_library(with_gflags=0)
   4 #
   5 # This file is inspired by the following sample BUILD files:
   6 #       https://github.com/google/glog/issues/61
   7 #       https://github.com/google/glog/files/393474/BUILD.txt
   8
   9 def glog_library(with_gflags=1):
  10     native.cc_library(
  11         name = 'glog',
  12         visibility = [ '//visibility:public' ],
  13         srcs = [
  14             'src/base/commandlineflags.h',
  15             'src/base/googleinit.h',
  16             'src/demangle.cc',
  17             'src/logging.cc',
  18             'src/raw_logging.cc',
  19             'src/signalhandler.cc',
  20             'src/symbolize.cc',
  21             'src/utilities.cc',
  22             'src/vlog_is_on.cc',
  23         ],
  24         hdrs = [
  25             'src/base/mutex.h',
  26             'src/demangle.h',
  27             'src/stacktrace.h',
  28             'src/symbolize.h',
  29             'src/utilities.h',
  30             'src/glog/log_severity.h',
  31         ],
  32         includes = [
  33             'src',
  34         ],
  35         copts = [
  36             # Disable warnings that exists in glog
  37             '-Wno-sign-compare',
  38             '-Wno-unused-local-typedefs',
  39             ## Inject google namespace as 'google'
  40             "-D_START_GOOGLE_NAMESPACE_='namespace google {'",
  41             "-D_END_GOOGLE_NAMESPACE_='}'",
  42             "-DGOOGLE_NAMESPACE='google'",
  43             # Allows src/base/mutex.h to include pthread.h.
  44             '-DHAVE_PTHREAD',
  45             # Allows src/logging.cc to determine the host name.
  46             '-DHAVE_SYS_UTSNAME_H',
  47             # System header files enabler for src/utilities.cc
  48             # Enable system calls from syscall.h
  49             '-DHAVE_SYS_SYSCALL_H',
  50             # Enable system calls from sys/time.h
  51             '-DHAVE_SYS_TIME_H',
  52             '-DHAVE_STDINT_H',
  53             '-DHAVE_STRING_H',
  54             # For logging.cc
  55             '-DHAVE_PREAD',
  56         ] + [
  57             '-DHAVE_LIB_GFLAGS'
  58         ] if with_gflags else [],
  59         deps = [ ':internal_headers' ] + \
  60                 [ '//external:gflags' ] if with_gflags else [],
  61     )
  62
  63     internal_headers = [
  64         ':config_h',
  65         ':logging_h',
  66         ':raw_logging_h',
  67         ':stl_logging_h',
  68         ':vlog_is_on_h',
  69     ]
  70
  71     if PACKAGE_NAME:
  72         native.cc_library(
  73             name = 'internal_headers',
  74             hdrs = internal_headers,
  75             includes = [
  76                         PACKAGE_NAME,
  77             ],
  78         )
  79     else:
  80         native.cc_library(
  81             name = 'internal_headers',
  82             hdrs = internal_headers,
  83         )
  84
  85     native.genrule(
  86         name = 'gen_sh',
  87         outs = [
  88             'gen.sh',
  89         ],
  90         cmd = '''
  91 #! /bin/sh
  92 cat > $@ <<"EOF"
  93 sed -e 's/@ac_cv_have_unistd_h@/1/g' \
  94     -e 's/@ac_cv_have_stdint_h@/1/g' \
  95     -e 's/@ac_cv_have_systypes_h@/1/g' \
  96     -e 's/@ac_cv_have_libgflags_h@/1/g' \
  97     -e 's/@ac_cv_have_uint16_t@/1/g' \
  98     -e 's/@ac_cv_have___builtin_expect@/1/g' \
  99     -e 's/@ac_cv_have_.*@/0/g' \
 100     -e 's/@ac_google_start_namespace@/namespace google {/g' \
 101     -e 's/@ac_google_end_namespace@/}/g' \
 102     -e 's/@ac_google_namespace@/google/g' \
 103     -e 's/@ac_cv___attribute___noinline@/__attribute__((noinline))/g' \
 104     -e 's/@ac_cv___attribute___noreturn@/__attribute__((noreturn))/g' \
 105     -e 's/@ac_cv___attribute___printf_4_5@/__attribute__((__format__ (__printf__, 4, 5)))/g'
 106 EOF''')
 107
 108     native.genrule(
 109         name = 'config_h',
 110         srcs = [
 111             'src/config.h.cmake.in',
 112         ],
 113         outs = [
 114             '/'.join([PACKAGE_NAME, 'config.h']) if PACKAGE_NAME else 'config.h',
 115         ],
 116         cmd = "awk '{ gsub(/^#cmakedefine/, \"//cmakedefine\"); print; }' $(<) > $(@)",
 117     )
 118
 119     native.genrule(
 120         name = 'logging_h',
 121         srcs = [
 122             'src/glog/logging.h.in',
 123         ],
 124         outs = [
 125             '/'.join([PACKAGE_NAME, 'glog/logging.h']) if PACKAGE_NAME else 'glog/logging.h',
 126         ],
 127         cmd = '$(location :gen_sh) < $(<) > $(@)',
 128         tools = [':gen_sh'],
 129     )
 130
 131     native.genrule(
 132         name = 'raw_logging_h',
 133         srcs = [
 134             'src/glog/raw_logging.h.in',
 135         ],
 136         outs = [
 137             '/'.join([PACKAGE_NAME, 'glog/raw_logging.h']) if PACKAGE_NAME else 'glog/raw_logging.h',
 138         ],
 139         cmd = '$(location :gen_sh) < $(<) > $(@)',
 140         tools = [':gen_sh'],
 141     )
 142
 143     native.genrule(
 144         name = 'stl_logging_h',
 145         srcs = [
 146             'src/glog/stl_logging.h.in',
 147         ],
 148         outs = [
 149             '/'.join([PACKAGE_NAME, 'glog/stl_logging.h']) if PACKAGE_NAME else 'glog/stl_logging.h',
 150         ],
 151         cmd = '$(location :gen_sh) < $(<) > $(@)',
 152         tools = [':gen_sh'],
 153     )
 154
 155     native.genrule(
 156         name = 'vlog_is_on_h',
 157         srcs = [
 158             'src/glog/vlog_is_on.h.in',
 159         ],
 160         outs = [
 161             '/'.join([PACKAGE_NAME, 'glog/vlog_is_on.h']) if PACKAGE_NAME else 'glog/vlog_is_on.h',
 162         ],
 163         cmd = '$(location :gen_sh) < $(<) > $(@)',
 164         tools = [':gen_sh'],
 165     )