#
# Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

ifndef _ZIP_ARCHIVE_GMK
_ZIP_ARCHIVE_GMK := 1

ifeq (,$(_MAKEBASE_GMK))
  $(error You must include MakeBase.gmk prior to including ZipArchive.gmk)
endif

# Setup make rules for creating a zip archive.
#
# Parameter 1 is the name of the rule. This name is used as variable prefix,
# and the targets generated are listed in a variable by that name.
#
# Remaining parameters are named arguments. These include:
#   SRC
#   ZIP
#   INCLUDES
#   INCLUDE_FILES
#   EXCLUDES
#   EXCLUDE_FILES
#   EXCLUDE_PATTERNS - Patterns with at most one % wildcard matching filenames
#                      and not directories.
#   EXCLUDE_PATTERNS_$dir - Exclude patterns just like above but specific to one
#                           src dir
#   SUFFIXES
#   EXTRA_DEPS
#   FOLLOW_SYMLINKS - Set to explicitly follow symlinks. Affects performance of
#                     finding files.
#   ZIP_OPTIONS extra options to pass to zip
SetupZipArchive = $(NamedParamsMacroTemplate)
define SetupZipArchiveBody

  # Create a version $1_SRC with a guaranteed trailing slash
  $1_SRC_SLASH := $$(addsuffix /, $$(patsubst %/, %, $$($1_SRC)))

  # To avoid running find over too large sets of files, which causes make to crash
  # on some configurations (cygwin), use INCLUDES and INCLUDE_FILES to build a set
  # of directories to run find in, if available.
  ifneq ($$($1_INCLUDES)$$($1_INCLUDE_FILES),)
    $1_FIND_LIST := $$(wildcard $$(foreach s,$$($1_SRC_SLASH), \
        $$(addprefix $$s,$$($1_INCLUDES) $$($1_INCLUDE_FILES))))
  else
    $1_FIND_LIST := $$($1_SRC_SLASH)
  endif

  # Find all files in the source tree.
  # If asked to, follow symlinks in this find since that is what zip does. To do
  # this, we need to call ShellFindFiles directly.
  ifeq ($$($1_FOLLOW_SYMLINKS), true)
    $1_ALL_SRCS := $$(call not-containing,_the.,$$(call ShellFindFiles,$$($1_FIND_LIST), , -L))
  else
    $1_ALL_SRCS := $$(call not-containing,_the.,$$(call FindFiles,$$($1_FIND_LIST)))
  endif

  # Filter on suffixes if set
  ifneq ($$($1_SUFFIXES),)
    $1_ALL_SRCS := $$(filter $$(addprefix %, $$($1_SUFFIXES)), $$($1_ALL_SRCS))
  endif

  ifneq ($$($1_INCLUDES),)
    ifneq ($$($1_SUFFIXES),)
      $1_ZIP_INCLUDES := $$(foreach s,$$($1_SUFFIXES), \
          $$(addprefix -i$(SPACE)$(DQUOTE),$$(addsuffix /*$$s$(DQUOTE),$$($1_INCLUDES))))
    else
      $1_ZIP_INCLUDES := $$(addprefix -i$(SPACE)$(DQUOTE),$$(addsuffix /*$(DQUOTE),$$($1_INCLUDES)))
    endif
  else
    ifneq ($$($1_SUFFIXES),)
      $1_ZIP_INCLUDES := $$(foreach s,$$($1_SUFFIXES), \
          $$(addprefix -i$(SPACE)$(DQUOTE),*$$s$(DQUOTE)))
    endif
  endif
  ifneq ($$($1_INCLUDE_FILES),)
    $1_ZIP_INCLUDES += $$(addprefix -i$(SPACE),$$($1_INCLUDE_FILES))
  endif
  ifneq ($$($1_EXCLUDES),)
    $1_ZIP_EXCLUDES := $$(addprefix -x$(SPACE)$(DQUOTE),$$(addsuffix /*$(DQUOTE),$$($1_EXCLUDES)))
    $1_SRC_EXCLUDES := $$(foreach s,$$($1_SRC_SLASH),$$(addprefix $$s,$$(addsuffix /%,$$($1_EXCLUDES))))
    $1_ALL_SRCS := $$(filter-out $$($1_SRC_EXCLUDES),$$($1_ALL_SRCS))
  endif
  ifneq ($$($1_EXCLUDE_FILES),)
    $1_SRC_EXCLUDE_FILES := $$(addprefix %, $$($1_EXCLUDE_FILES)) $$($1_EXCLUDE_FILES)
    $1_ALL_SRCS := $$(filter-out $$($1_SRC_EXCLUDE_FILES), $$($1_ALL_SRCS))
    $$(foreach s, $$($1_SRC_SLASH), \
      $$(eval $1_ZIP_EXCLUDES_$$s += \
          $$(addprefix -x$$(SPACE), $$(patsubst $$s%,%, $$($1_EXCLUDE_FILES))) \
      ) \
    )
  endif
  ifneq ($$($1_EXCLUDE_PATTERNS), )
    $1_ALL_SRCS := $$(filter-out $$($1_EXCLUDE_PATTERNS), $$($1_ALL_SRCS))
    $1_ZIP_EXCLUDES += $$(addprefix -x$(SPACE), $$(subst %,\*,$$($1_EXCLUDE_PATTERNS)))
  endif
  # Rewrite src dir specific exclude patterns to zip excludes
  $$(foreach s, $$($1_SRC_SLASH), \
    $$(if $$($1_EXCLUDE_PATTERNS_$$s), \
      $$(eval $1_ZIP_EXCLUDES_$$s += \
          $$(addprefix -x$$(SPACE), $$(subst %,\*,$$($1_EXCLUDE_PATTERNS_$$s))) \
      ) \
    ) \
  )

  # Use a slightly shorter name for logging, but with enough path to identify this zip.
  $1_NAME:=$$(subst $$(OUTPUTDIR)/,,$$($1_ZIP))

  # Now $1_ALL_SRCS should contain all sources that are going to be put into the zip.
  # I.e. the zip -i and -x options should match the filtering done in the makefile.
  # Explicitly excluded files can be given with absolute path. The patsubst solution
  # isn't perfect but the likelyhood of an absolute path to match something in a src
  # dir is very small.
  # If zip has nothing to do, it returns 12 and would fail the build. Check for 12
  # and only fail if it's not.
  $$($1_ZIP) : $$($1_ALL_SRCS) $$($1_EXTRA_DEPS)
	$$(call LogWarn, Updating $$($1_NAME))
	$$(call MakeTargetDir)
        # Find duplicate file names in the SRC and generate excludes for all
        # instances that should not be included. Run this rather expensive
        # calculation as part of the recipe to avoid running it when nothing
        # needs to be rebuilt. The drawback is that we cannot exclude these
        # files from the make prerequisites list, but the number of files is
        # usually small so a very rare unnecessary rebuild is worth it.
        # (The inner most foreach here is used instead of eval to declare a
        # local variable.)
	$$(foreach root, $$($1_SRC_SLASH), \
	  $$(foreach file, $$(filter $$(root)%, $$($1_ALL_SRCS)), \
	    $$(foreach relfile, $$(patsubst $$(root)%, %, $$(file)), \
	      $$(if $$($1_relfiles_$$(call DoubleDollar, $$(relfile))), \
	        $$(eval $1_ZIP_EXCLUDES_$$(root) += -x $$(relfile)) \
	      , \
	        $$(eval $1_relfiles_$$(call DoubleDollar, $$(relfile)) := 1) \
	      ) \
	    ) \
	  ) \
	)
	$$(foreach s,$$($1_SRC_SLASH), $$(call ExecuteWithLog, \
	    $$(SUPPORT_OUTPUTDIR)/zip/$$(patsubst $$(OUTPUTDIR)/%,%, $$@), \
	    (cd $$s && $(ZIPEXE) -qru $$($1_ZIP_OPTIONS) $$@ . \
	        $$($1_ZIP_INCLUDES) $$($1_ZIP_EXCLUDES) -x \*_the.\* \
	        $$($1_ZIP_EXCLUDES_$$s) \
	        || test "$$$$?" = "12" \
	    ))$$(NEWLINE) \
	) true \
	$(TOUCH) $$@

  # Add zip to target list
  $1 += $$($1_ZIP)
endef

endif # _ZIP_ARCHIVE_GMK