# Copyright 2009, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#     * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#
# This file is based on the icu38.scons file from the Chrome project,
# Copyright (c) 2006-2008 The Chromium Authors.

# Variables to control what does or doesn't get built here:
#
# CombinedLib
#       When True, builds a combined libicu.a (or icu.lib) containing
#       the common, i18n, stubdata and toolutil parts of ICU.  When
#       False, builds those as separate libraries.
#
# GeneratedDataLib
#       When True, specifies that we want to build a libicudata.a
#       (or icudata.lib) library containing the data.  When False,
#       we copy out the icudt38l.dat file or the Chromium icudt38.dll
#       file.
#
# Note that we've only verified the behavior that each platform
# needs to build the way it currently wants, so don't expect that
# you can just change the way a given platform builds without maybe
# having to fix things.  For example, attempts to set GenerateDataLib
# on Windows will need to fix problems executing the utilities that
# handle the generation.

import os

CombinedLib = True
GenerateDataLib = False

Import('env')

env = env.Clone(
    GENERATED_DIR = env.Dir('$ICU38_DIR/generated'),
    GENCCODE = env.File('$ICU38_DIR/generated/genccode$PROGSUFFIX'),
    ICUPKG = env.File('$ICU38_DIR/generated/icupkg$PROGSUFFIX'),
)

env.ApplySConscript([
    '$CHROME_SRC_DIR/build/external_code.scons',
])

env.Prepend(
    CPPPATH = [
        '$ICU38_DIR/source/common',
        '$ICU38_DIR/public/common',
        '$ICU38_DIR/source/i18n',
        '$ICU38_DIR/public/i18n',
        '$ICU38_DIR/source/tools/toolutil',
    ],
    CPPDEFINES = [
        'U_STATIC_IMPLEMENTATION',
    ],
)

if env.Bit('mac'):
  env.FilterOut(CCFLAGS=['-Werror'],
                CPPDEFINES=['DEBUG'])
  env['GENCCODE_NAME'] = 'icudt38l'
  env['GENCCODE_FLAGS'] = '-a gcc-darwin -n $GENCCODE_NAME -e icudt38'
  env['GENCCODE_SUFFIX'] = '.s'

if env.Bit('linux'):
  env['GENCCODE_NAME'] = 'icudt38l'
  env['GENCCODE_FLAGS'] = '-a gcc -n $GENCCODE_NAME -e icudt38'
  env['GENCCODE_SUFFIX'] = '.s'

if env.Bit('windows'):
  env['GENCCODE_NAME'] = 'icudt38'
  env['GENCCODE_FLAGS'] = '-e icudt38'
  env['GENCCODE_SUFFIX'] = '.c'

if env.Bit('windows'):
  # /Wd4996 to silence warning about strncpy
  env.Append(CCFLAGS = ['/WX', '/wd4996'])
else:
  env.Append(
      CCFLAGS = [
          # TODO: fix ICU to not depend on this flag.
          '-fno-strict-aliasing',

          '-Wno-parentheses',

          # See uprv_UnicodeStringDummy at end of source/common/unistr.cpp.
          '-Wno-unused-function',
      ]
  )

if 'WIN32_LEAN_AND_MEAN' in env['CPPDEFINES']:
  env['CPPDEFINES'].remove('WIN32_LEAN_AND_MEAN')

common_input_files = [
    'source/common/bmpset.cpp',
    'source/common/brkeng.cpp',
    'source/common/brkiter.cpp',
    'source/common/caniter.cpp',
    'source/common/chariter.cpp',
    'source/common/cmemory.c',
    'source/common/cstring.c',
    'source/common/cwchar.c',
    'source/common/dictbe.cpp',
    'source/common/locbased.cpp',
    'source/common/locid.cpp',
    'source/common/locmap.c',
    'source/common/locutil.cpp',
    'source/common/normlzr.cpp',
    'source/common/parsepos.cpp',
    'source/common/propname.cpp',
    'source/common/punycode.c',
    'source/common/putil.c',
    'source/common/rbbi.cpp',
    'source/common/rbbidata.cpp',
    'source/common/rbbinode.cpp',
    'source/common/rbbirb.cpp',
    'source/common/rbbiscan.cpp',
    'source/common/rbbisetb.cpp',
    'source/common/rbbistbl.cpp',
    'source/common/rbbitblb.cpp',
    'source/common/resbund.cpp',
    'source/common/resbund_cnv.cpp',
    'source/common/ruleiter.cpp',
    'source/common/schriter.cpp',
    'source/common/serv.cpp',
    'source/common/servlk.cpp',
    'source/common/servlkf.cpp',
    'source/common/servls.cpp',
    'source/common/servnotf.cpp',
    'source/common/servrbf.cpp',
    'source/common/servslkf.cpp',
    'source/common/triedict.cpp',
    'source/common/uarrsort.c',
    'source/common/ubidi.c',
    'source/common/ubidi_props.c',
    'source/common/ubidiln.c',
    'source/common/ubidiwrt.c',
    'source/common/ubrk.cpp',
    'source/common/ucase.c',
    'source/common/ucasemap.c',
    'source/common/ucat.c',
    'source/common/uchar.c',
    'source/common/uchriter.cpp',
    'source/common/ucln_cmn.c',
    'source/common/ucmndata.c',
    'source/common/ucnv.c',
    'source/common/ucnv_bld.c',
    'source/common/ucnv_cb.c',
    'source/common/ucnv_cnv.c',
    'source/common/ucnv_err.c',
    'source/common/ucnv_ext.c',
    'source/common/ucnv_io.c',
    'source/common/ucnv_lmb.c',
    'source/common/ucnv_set.c',
    'source/common/ucnv_u16.c',
    'source/common/ucnv_u32.c',
    'source/common/ucnv_u7.c',
    'source/common/ucnv_u8.c',
    'source/common/ucnv2022.c',
    'source/common/ucnvbocu.c',
    'source/common/ucnvdisp.c',
    'source/common/ucnvhz.c',
    'source/common/ucnvisci.c',
    'source/common/ucnvlat1.c',
    'source/common/ucnvmbcs.c',
    'source/common/ucnvscsu.c',
    'source/common/ucol_swp.c',
    'source/common/udata.c',
    'source/common/udatamem.c',
    'source/common/udataswp.c',
    'source/common/uenum.c',
    'source/common/uhash.c',
    'source/common/uhash_us.cpp',
    'source/common/uidna.cpp',
    'source/common/uinit.c',
    'source/common/uinvchar.c',
    'source/common/uiter.cpp',
    'source/common/uloc.c',
    'source/common/umapfile.c',
    'source/common/umath.c',
    'source/common/umutex.c',
    'source/common/unames.c',
    'source/common/unifilt.cpp',
    'source/common/unifunct.cpp',
    'source/common/uniset.cpp',
    'source/common/uniset_props.cpp',
    'source/common/unisetspan.cpp',
    'source/common/unistr.cpp',
    'source/common/unistr_case.cpp',
    'source/common/unistr_cnv.cpp',
    'source/common/unistr_props.cpp',
    'source/common/unorm.cpp',
    'source/common/unorm_it.c',
    'source/common/unormcmp.cpp',
    'source/common/uobject.cpp',
    'source/common/uprops.c',
    'source/common/ures_cnv.c',
    'source/common/uresbund.c',
    'source/common/uresdata.c',
    'source/common/usc_impl.c',
    'source/common/uscript.c',
    'source/common/uset.cpp',
    'source/common/uset_props.cpp',
    'source/common/usetiter.cpp',
    'source/common/ushape.c',
    'source/common/usprep.cpp',
    'source/common/ustack.cpp',
    'source/common/ustr_cnv.c',
    'source/common/ustr_wcs.c',
    'source/common/ustrcase.c',
    'source/common/ustrenum.cpp',
    'source/common/ustrfmt.c',
    'source/common/ustring.c',
    'source/common/ustrtrns.c',
    'source/common/utext.cpp',
    'source/common/utf_impl.c',
    'source/common/util.cpp',
    'source/common/util_props.cpp',
    'source/common/utrace.c',
    'source/common/utrie.c',
    'source/common/utypes.c',
    'source/common/uvector.cpp',
    'source/common/uvectr32.cpp',
    'source/common/wintz.c',
]

i18n_input_files = [
    'source/i18n/anytrans.cpp',
    'source/i18n/astro.cpp',
    'source/i18n/basictz.cpp',
    'source/i18n/bocsu.c',
    'source/i18n/buddhcal.cpp',
    'source/i18n/calendar.cpp',
    'source/i18n/casetrn.cpp',
    'source/i18n/choicfmt.cpp',
    'source/i18n/coleitr.cpp',
    'source/i18n/coll.cpp',
    'source/i18n/cpdtrans.cpp',
    'source/i18n/csdetect.cpp',
    'source/i18n/csmatch.cpp',
    'source/i18n/csr2022.cpp',
    'source/i18n/csrecog.cpp',
    'source/i18n/csrmbcs.cpp',
    'source/i18n/csrsbcs.cpp',
    'source/i18n/csrucode.cpp',
    'source/i18n/csrutf8.cpp',
    'source/i18n/curramt.cpp',
    'source/i18n/currfmt.cpp',
    'source/i18n/currunit.cpp',
    'source/i18n/datefmt.cpp',
    'source/i18n/dcfmtsym.cpp',
    'source/i18n/decimfmt.cpp',
    'source/i18n/digitlst.cpp',
    'source/i18n/dtfmtsym.cpp',
    'source/i18n/dtrule.cpp',
    'source/i18n/esctrn.cpp',
    'source/i18n/fmtable.cpp',
    'source/i18n/fmtable_cnv.cpp',
    'source/i18n/format.cpp',
    'source/i18n/funcrepl.cpp',
    'source/i18n/gregocal.cpp',
    'source/i18n/gregoimp.cpp',
    'source/i18n/hebrwcal.cpp',
    'source/i18n/indiancal.cpp',
    'source/i18n/inputext.cpp',
    'source/i18n/islamcal.cpp',
    'source/i18n/japancal.cpp',
    'source/i18n/measfmt.cpp',
    'source/i18n/measure.cpp',
    'source/i18n/msgfmt.cpp',
    'source/i18n/name2uni.cpp',
    'source/i18n/nfrs.cpp',
    'source/i18n/nfrule.cpp',
    'source/i18n/nfsubs.cpp',
    'source/i18n/nortrans.cpp',
    'source/i18n/nultrans.cpp',
    'source/i18n/numfmt.cpp',
    'source/i18n/olsontz.cpp',
    'source/i18n/persncal.cpp',
    'source/i18n/plurfmt.cpp',
    'source/i18n/plurrule.cpp',
    'source/i18n/quant.cpp',
    'source/i18n/rbnf.cpp',
    'source/i18n/rbt.cpp',
    'source/i18n/rbt_data.cpp',
    'source/i18n/rbt_pars.cpp',
    'source/i18n/rbt_rule.cpp',
    'source/i18n/rbt_set.cpp',
    'source/i18n/rbtz.cpp',
    'source/i18n/regexcmp.cpp',
    'source/i18n/regexst.cpp',
    'source/i18n/reldtfmt.cpp',
    'source/i18n/rematch.cpp',
    'source/i18n/remtrans.cpp',
    'source/i18n/repattrn.cpp',
    'source/i18n/search.cpp',
    'source/i18n/simpletz.cpp',
    'source/i18n/smpdtfmt.cpp',
    'source/i18n/sortkey.cpp',
    'source/i18n/strmatch.cpp',
    'source/i18n/strrepl.cpp',
    'source/i18n/stsearch.cpp',
    'source/i18n/taiwncal.cpp',
    'source/i18n/tblcoll.cpp',
    'source/i18n/timezone.cpp',
    'source/i18n/titletrn.cpp',
    'source/i18n/tolowtrn.cpp',
    'source/i18n/toupptrn.cpp',
    'source/i18n/translit.cpp',
    'source/i18n/transreg.cpp',
    'source/i18n/tridpars.cpp',
    'source/i18n/tzrule.cpp',
    'source/i18n/tztrans.cpp',
    'source/i18n/ucal.cpp',
    'source/i18n/ucln_in.c',
    'source/i18n/ucol.cpp',
    'source/i18n/ucol_bld.cpp',
    'source/i18n/ucol_cnt.cpp',
    'source/i18n/ucol_elm.cpp',
    'source/i18n/ucol_res.cpp',
    'source/i18n/ucol_sit.cpp',
    'source/i18n/ucol_tok.cpp',
    'source/i18n/ucol_wgt.c',
    'source/i18n/ucoleitr.cpp',
    'source/i18n/ucsdet.cpp',
    'source/i18n/ucurr.cpp',
    'source/i18n/udat.cpp',
    'source/i18n/ulocdata.c',
    'source/i18n/umsg.cpp',
    'source/i18n/unesctrn.cpp',
    'source/i18n/uni2name.cpp',
    'source/i18n/unum.cpp',
    'source/i18n/uregex.cpp',
    'source/i18n/uregexc.cpp',
    'source/i18n/usearch.cpp',
    'source/i18n/utmscale.c',
    'source/i18n/utrans.cpp',
    'source/i18n/vtzone.cpp',
    'source/i18n/windtfmt.cpp',
    'source/i18n/winnmfmt.cpp',
]

stubdata_input_files = [
    'source/stubdata/stubdata.c',
]

toolutil_input_files = [
    'source/tools/toolutil/filestrm.c',
    'source/tools/toolutil/package.cpp',
    'source/tools/toolutil/pkgitems.cpp',
    'source/tools/toolutil/propsvec.c',
    'source/tools/toolutil/swapimpl.cpp',
    'source/tools/toolutil/toolutil.c',
    'source/tools/toolutil/toolutil.vcproj',
    'source/tools/toolutil/ucbuf.c',
    'source/tools/toolutil/ucm.c',
    'source/tools/toolutil/ucmstate.c',
    'source/tools/toolutil/unewdata.c',
    'source/tools/toolutil/uoptions.c',
    'source/tools/toolutil/uparse.c',
    'source/tools/toolutil/writesrc.c',
    'source/tools/toolutil/xmlparser.cpp',
]

def MakeObject(env, source, extra_defines):
  base, ext = os.path.splitext(source)
  return env.ComponentObject(base, '$ICU38_DIR/' + source,
                             CPPDEFINES = env['CPPDEFINES'] + extra_defines)



if CombinedLib:

  if env.Bit('linux'):
    # U_STATIC_IMPLEMENTATION gets overridden by U_COMBINED_IMPLEMENTATION,
    # which on linux causes all the symbols to be exported from the shared
    # library, conflicting with the browser's definition if it uses icu as well
    # (e.g.  Chrome).
    combined_flag = []
  else:
    combined_flag = ['U_COMBINED_IMPLEMENTATION']
  # These empirically fail to build when U_COMMON_IMPLEMENTATION
  # isn't defined in addition to U_COMBINED_IMPLEMENTATION.  Remove
  # them from the source file list and re-append them with Nodes
  # for custom-built object files with both defined.

  need_common_implementation = [
      'source/common/ubidi.c',
      'source/common/ubidiln.c',
  ]

  objects = []
  for n in need_common_implementation:
    common_input_files.remove(n)
    o = MakeObject(env, n, ['U_COMMON_IMPLEMENTATION'] + combined_flag)
    objects.append(o)

  sources = common_input_files + i18n_input_files + stubdata_input_files
  objects += [MakeObject(env, n, combined_flag) for n in sources]

  icu_lib = env.ComponentLibrary('icu', objects);

else:

  common_objects = [MakeObject(env, n, ['U_COMMON_IMPLEMENTATION'])
                    for n in common_input_files]
  icu_lib = env.ComponentLibrary('icuuc', common_objects)

  i18n_objects = [MakeObject(env, n, ['U_I18N_IMPLEMENTATION'])
                  for n in i18n_input_files]
  env.ComponentLibrary('icui18n', i18n_objects)

  stubdata_objects = [MakeObject(env, n, []) for n in stubdata_input_files]
  env.ComponentLibrary('icudata_stub', stubdata_objects)

  toolutil_objects = [MakeObject(env, n, ['U_TOOLUTIL_IMPLEMENTATION'])
                      for n in toolutil_input_files]

  env.ComponentLibrary('icutu', toolutil_objects)


if GenerateDataLib:

  icudata_lst = env.Command(['$GENERATED_DIR/icudata.lst',
                             '$GENERATED_DIR/icudt38l/ucadata.icu'],
                            ['source/data/in/icudt38l.dat'],
                            ('$ICUPKG -d ${TARGETS[1].dir} --list -x "*"'
                             ' $SOURCE > $TARGET'))
  env.Depends(icudata_lst, '$ICUPKG')

  icudt38_dat = env.Command(['$GENERATED_DIR/${GENCCODE_NAME}.dat'],
                            icudata_lst,
                            ('$ICUPKG -tl -c -s ${SOURCES[1].dir}'
                             ' -a $SOURCE new $TARGET'))
  env.Depends(icudt38_dat, '$ICUPKG')

  icudt38_src = env.Command(
      '$GENERATED_DIR/${GENCCODE_NAME}_dat${GENCCODE_SUFFIX}',
      icudt38_dat,
      '$GENCCODE $GENCCODE_FLAGS -d ${TARGET.dir} $SOURCE')
  env.Depends(icudt38_src, '$GENCCODE')

  icu_data = env.ComponentLibrary('icudata', icudt38_src)

  if CombinedLib:
    lib_list = ['icu']
  else:
    lib_list = ['icui18n', 'icutu', 'icuuc', 'icudata_stub']

  env_tools = env.Clone(LIBS = lib_list)

  env_tools.Program(env['GENCCODE'],
                    '$ICU38_DIR/source/tools/genccode/genccode.c')
  env_tools.Program(env['ICUPKG'], '$ICU38_DIR/source/tools/icupkg/icupkg.cpp')

else:

  icu_data = None

  # The ICU library isn't useful without the data properly installed.
  if env.Bit('windows'):
    icu_data = env.Replicate('$ARTIFACTS_DIR', 'icudt38.dll')
  else:
    icu_data = env.Replicate('$ARTIFACTS_DIR',
                             '$ICU38_DIR/source/data/in/icudt38l.dat')

  env.Requires(icu_lib, icu_data)