JarArchive.gmk

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ifndef _JAR_ARCHIVE_GMK
_JAR_ARCHIVE_GMK := 1

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

FALSE_FIND_PATTERN:=-name FILE_NAME_THAT_DOESNT_EXIST

# Setup make rules for creating a jar 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:
#   DEPENDENCIES:=List of dependencies for the jar target. If left empty,
#       dependencies are calculated automatically from the source files found.
#       For this to work, the source files must exist when the makefile is
#       parsed.
#   SRCS:=List of directories in where to find files to add to archive
#   BIN:=Directory where to store build control files
#   SUFFIXES:=File suffixes to include in jar
#   INCLUDES:=List of directories/packages in SRCS that should be included
#   EXCLUDES:=List of directories/packages in SRCS that should be excluded
#   EXCLUDE_FILES:=List of files in SRCS that should be excluded
#   EXTRA_FILES:=List of files in SRCS that should be included regardless of suffix match.
#   JAR:=Jar file to create
#   MANIFEST:=Optional manifest file template.
#   JARMAIN:=Optional main class to add to manifest
#   JARINDEX:=true means generate the index in the jar file.
#   SKIP_METAINF:=Set to prevent contents of an META-INF directory to be automatically
#       added to the archive.
#   EXTRA_MANIFEST_ATTR:=Extra attribute to add to manifest.
#   CHECK_COMPRESS_JAR Check the COMPRESS_JAR variable
#   JAR_CMD:=Optionally override the jar command to use when creating the archive.
SetupJarArchive = $(NamedParamsMacroTemplate)
define SetupJarArchiveBody

  $1_JARMAIN:=$(strip $$($1_JARMAIN))
  $1_JARNAME:=$$(notdir $$($1_JAR))
  $1_JAR_OUTPUT_DIR := $$(patsubst %/, %, $$(dir $$($1_JAR)))
  $$(call SetIfEmpty, $1_BIN, $$($1_JAR_OUTPUT_DIR))
  $1_MANIFEST_FILE:=$$($1_BIN)/_the.$$($1_JARNAME)_manifest
  $1_DELETESS_FILE:=$$($1_BIN)/_the.$$($1_JARNAME)_deletess
  $1_DELETES_FILE:=$$($1_BIN)/_the.$$($1_JARNAME)_deletes
  $$(call SetIfEmpty, $1_JAR_CMD, $$(JAR))

  ifeq (,$$($1_SUFFIXES))
    # No suffix was set, default to classes.
    $1_SUFFIXES:=.class
  endif
  # Convert suffixes to a find expression
  $1_FIND_PATTERNS:=$(FALSE_FIND_PATTERN) $$(patsubst %,$(SPACE)-o$(SPACE)-name$(SPACE)$(DQUOTE)*%$(DQUOTE),$$($1_SUFFIXES))
  # On windows, a lot of includes/excludes risk making the command line too long, so
  # writing the grep patterns to files.
  # Grep returns 1 if nothing is matched. Do not fail the build for this.
  ifneq (,$$($1_INCLUDES))
    $1_GREP_INCLUDE_PATTERNS:=$$(call EscapeDollar, \
        $$(foreach src,$$($1_SRCS), $$(addprefix $$(src)/,$$($1_INCLUDES))))
    # If there are a lot of include patterns, output to file to shorten command lines
    ifeq ($$(word 20,$$($1_GREP_INCLUDE_PATTERNS)),)
      $1_GREP_INCLUDES:=| ( $(GREP) $$(patsubst %,$(SPACE)-e$(SPACE)$(DQUOTE)%$(DQUOTE),$$($1_GREP_INCLUDE_PATTERNS)) \
          || test "$$$$?" = "1" )
    else
      $1_GREP_INCLUDE_OUTPUT = \
          $$(eval $$(call ListPathsSafely,$1_GREP_INCLUDE_PATTERNS, \
              $$($1_BIN)/_the.$$($1_JARNAME)_include))
      $1_GREP_INCLUDES:=| ( $(GREP) -f $$($1_BIN)/_the.$$($1_JARNAME)_include \
          || test "$$$$?" = "1" )
    endif
  endif
  ifneq (,$$($1_EXCLUDES)$$($1_EXCLUDE_FILES))
    $1_GREP_EXCLUDE_PATTERNS:=$$(call EscapeDollar, \
        $$(foreach src,$$($1_SRCS),$$(addprefix $$(src)/, \
        $$($1_EXCLUDES) $$($1_EXCLUDE_FILES))))
    # If there are a lot of include patterns, output to file to shorten command lines
    ifeq ($$(word 20,$$($1_GREP_EXCLUDE_PATTERNS)),)
      $1_GREP_EXCLUDES:=| ( $(GREP) -v $$(patsubst %,$(SPACE)-e$(SPACE)$(DQUOTE)%$(DQUOTE),$$($1_GREP_EXCLUDE_PATTERNS)) \
          || test "$$$$?" = "1" )
    else
      $1_GREP_EXCLUDE_OUTPUT = \
          $$(eval $$(call ListPathsSafely,$1_GREP_EXCLUDE_PATTERNS, \
              $$($1_BIN)/_the.$$($1_JARNAME)_exclude))
      $1_GREP_EXCLUDES:=| ( $(GREP) -v -f $$($1_BIN)/_the.$$($1_JARNAME)_exclude \
          || test "$$$$?" = "1" )
    endif
  endif

  # Check if this jar needs to have its index generated.
  ifneq (,$$($1_JARINDEX))
    $1_JARINDEX = (cd $$(dir $$@) && $$($1_JAR_CMD) -i $$(notdir $$@))
  else
    $1_JARINDEX = true
  endif
  # When this macro is run in the same makefile as the java compilation, dependencies are
  # transferred in make variables. When the macro is run in a different makefile than the
  # java compilation, the dependencies need to be found in the filesystem.
  $1_ORIG_DEPS := $$($1_DEPENDENCIES)
  ifeq ($$($1_DEPENDENCIES), )
    # Add all source roots to the find cache since we are likely going to run find
    # on these more than once. The cache will only be updated if necessary.
    $$(call FillFindCache, $$($1_FIND_LIST))
    $1_DEPENDENCIES:=$$(filter $$(addprefix %,$$($1_SUFFIXES)), \
        $$(call FindFiles,$$($1_SRCS)))
    ifneq (,$$($1_GREP_INCLUDE_PATTERNS))
      $1_DEPENDENCIES:=$$(filter $$(addsuffix %,$$($1_GREP_INCLUDE_PATTERNS)),$$($1_DEPENDENCIES))
    endif
    ifneq (,$$($1_GREP_EXCLUDE_PATTERNS))
      $1_DEPENDENCIES:=$$(filter-out $$(addsuffix %,$$($1_GREP_EXCLUDE_PATTERNS)),$$($1_DEPENDENCIES))
    endif
    # Look for EXTRA_FILES in all SRCS dirs and as absolute paths.
    $1_DEPENDENCIES+=$$(wildcard $$(foreach src, $$($1_SRCS), \
        $$(addprefix $$(src)/, $$($1_EXTRA_FILES))) $$($1_EXTRA_FILES))
    ifeq (,$$($1_SKIP_METAINF))
      $1_DEPENDENCIES+=$$(call FindFiles,$$(wildcard $$(addsuffix /META-INF,$$($1_SRCS))))
    endif
  endif
  # The dependency list should never be empty
  ifeq ($$(strip $$($1_DEPENDENCIES)), )
    $$(warning No dependencies found for $1)
  endif

  # Utility macros, to make the shell script receipt somewhat easier to decipher.

  # Capture extra files is the same for both CAPTURE_CONTENTS and SCAPTURE_CONTENTS so
  # only define it once to avoid duplication.
  # The list of extra files might be long, so need to use ListPathsSafely to print
  # them out to a separate file. Then process the contents of that file to rewrite
  # into -C <dir> <file> lines.
  # The EXTRA_FILES_RESOLVED variable must be set in the macro so that it's evaluated
  # in the recipe when the files are guaranteed to exist.
  $1_CAPTURE_EXTRA_FILES=\
      $$(eval $1_EXTRA_FILES_RESOLVED:=$$(call DoubleDollar, \
          $$(wildcard $$(foreach src, $$($1_SRCS), \
          $$(addprefix $$(src)/, $$($1_EXTRA_FILES))) $$($1_EXTRA_FILES)))) \
      $$(if $$($1_EXTRA_FILES_RESOLVED), \
        $$(eval $$(call ListPathsSafely,$1_EXTRA_FILES_RESOLVED, \
            $$($1_BIN)/_the.$$($1_JARNAME)_contents.extra)) \
        $(SED) $$(foreach src,$$($1_SRCS), -e 's|$$(src)/|-C $$(src) |g') \
            $$($1_BIN)/_the.$$($1_JARNAME)_contents.extra \
            >> $$($1_BIN)/_the.$$($1_JARNAME)_contents $$(NEWLINE))

  # The capture contents macro finds all files (matching the patterns, typically
  # .class and .prp) that are newer than the jar-file, ie the new content to be put into the jar.
  # NOTICE: please leave the parentheses space separated otherwise the AIX build will break!
  $1_CAPTURE_CONTENTS=\
      $(RM) $$($1_BIN)/_the.$$($1_JARNAME)_contents $$(NEWLINE) \
      $$(foreach src,$$($1_SRCS), \
        $(FIND) $$(src) -type f -a \( $$($1_FIND_PATTERNS) \) -a -newer $$@ $$($1_GREP_INCLUDES) \
          $$($1_GREP_EXCLUDES) | $(SED) 's|$$(src)/|-C $$(src) |g' \
        >> $$($1_BIN)/_the.$$($1_JARNAME)_contents $$(NEWLINE)) \
      $$($1_CAPTURE_EXTRA_FILES)

  # The capture metainf macro finds all files below the META-INF directory that are newer than the jar-file.
  # Find returns non zero if the META-INF dir does not exist, ignore this.
  ifeq (,$$($1_SKIP_METAINF))
    $1_CAPTURE_METAINF =$$(foreach src,$$($1_SRCS), \
        ( ( $(FIND) $$(src)/META-INF -type f -a -newer $$@ 2> /dev/null || true ) \
            | $(SED) 's|$$(src)/|-C $$(src) |g' >> \
        $$($1_BIN)/_the.$$($1_JARNAME)_contents ) $$(NEWLINE) )
  endif
  # The capture deletes macro finds all deleted files and concatenates them. The resulting file
  # tells us what to remove from the jar-file.
  $1_CAPTURE_DELETES=$$(foreach src,$$($1_SRCS),($(FIND) $$(src) -name _the.package.deleted -newer $$@ \
      -exec $(SED) 's|$$(src)||g' \{\} >> $$($1_DELETES_FILE) \;) $$(NEWLINE))
  # The update contents macro updates the jar file with the previously capture contents.
  # Use 'wc -w' to see if the contents file is empty.
  $1_UPDATE_CONTENTS=\
      if [ "`$(WC) -l $$($1_BIN)/_the.$$($1_JARNAME)_contents | $(AWK) '{ print $$$$1 }'`" -gt "0" ]; then \
        $(ECHO) "  updating" `$(WC) -l $$($1_BIN)/_the.$$($1_JARNAME)_contents | $(AWK) '{ print $$$$1 }'` files && \
        $(SORT) $$($1_BIN)/_the.$$($1_JARNAME)_contents > $$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted && \
        $$($1_JAR_CMD) --update $$($1_JAR_OPTIONS) --file $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted; \
      fi $$(NEWLINE)
  # The s-variants of the above macros are used when the jar is created from scratch.
  # NOTICE: please leave the parentheses space separated otherwise the AIX build will break!
  $1_SCAPTURE_CONTENTS=\
      $(RM) $$($1_BIN)/_the.$$($1_JARNAME)_contents $$(NEWLINE) \
      $$(foreach src,$$($1_SRCS), \
        $(FIND) $$(src) -type f -a \( $$($1_FIND_PATTERNS) \) $$($1_GREP_INCLUDES) \
            $$($1_GREP_EXCLUDES) | $(SED) 's|$$(src)/|-C $$(src) |g' \
            >> $$($1_BIN)/_the.$$($1_JARNAME)_contents $$(NEWLINE)) \
      $$($1_CAPTURE_EXTRA_FILES)

  # Find returns non zero if the META-INF dir does not exist, ignore this.
  ifeq (,$$($1_SKIP_METAINF))
    $1_SCAPTURE_METAINF=$$(foreach src,$$($1_SRCS), \
        ( ( $(FIND) $$(src)/META-INF -type f 2> /dev/null || true ) \
            | $(SED) 's|$$(src)/|-C $$(src) |g' >> \
        $$($1_BIN)/_the.$$($1_JARNAME)_contents) $$(NEWLINE) )
  endif
  $1_SUPDATE_CONTENTS=\
      $(SORT) $$($1_BIN)/_the.$$($1_JARNAME)_contents > $$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted && \
      $$($1_JAR_CMD) --update $$($1_JAR_OPTIONS) --file $$@ @$$($1_BIN)/_the.$$($1_JARNAME)_contents_sorted $$(NEWLINE)

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

  # If reproducible build and the boot jdk jar supports --date option
  # then specify the --date using SOURCE_DATE in ISO-8601
  $1_JAR_OPTIONS :=
  ifeq ($$(BOOT_JDK_JAR_SUPPORTS_DATE), true)
    $1_JAR_OPTIONS += --date $(SOURCE_DATE_ISO_8601)
  endif
  ifneq (,$$($1_CHECK_COMPRESS_JAR))
    ifneq ($(COMPRESS_JARS), true)
      $1_JAR_OPTIONS += --no-compress
    endif
  endif

  # Include all variables of significance in the vardeps file
  $1_VARDEPS := $$($1_JAR_CMD) $$($1_JAR_OPTIONS) $$($1_MANIFEST) \
      $$($1_JARMAIN) $$($1_EXTRA_MANIFEST_ATTR) $$($1_ORIG_DEPS) $$($1_SRCS) \
      $$($1_INCLUDES) $$($1_EXCLUDES) $$($1_EXCLUDE_FILES) $$($1_EXTRA_FILES)
  $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, $$($1_BIN)/_the.$$($1_JARNAME).vardeps)

  # Here is the rule that creates/updates the jar file.
  $$($1_JAR) : $$($1_DEPENDENCIES) $$($1_MANIFEST) $$($1_VARDEPS_FILE)
	$$(call MakeTargetDir)
	$$(call MakeDir, $$($1_BIN))
	$$($1_GREP_INCLUDE_OUTPUT)
	$$($1_GREP_EXCLUDE_OUTPUT)
        # If the vardeps file is part of the newer prereq list, it means that
        # either the jar file does not exist, or we need to recreate it from
        # from scratch anyway since a simple update will not catch all the
        # potential changes.
	$$(if $$(filter $$($1_VARDEPS_FILE) $$($1_MANIFEST), $$?), \
	  $$(if $$($1_MANIFEST), \
	    $(CP) $$($1_MANIFEST) $$($1_MANIFEST_FILE) $$(NEWLINE) \
	  , \
	    $(RM) $$($1_MANIFEST_FILE) && $(TOUCH) $$($1_MANIFEST_FILE) $$(NEWLINE)) \
	  $$(if $$($1_JARMAIN), \
	    $(ECHO) "Main-Class: $$(strip $$($1_JARMAIN))" >> $$($1_MANIFEST_FILE) $$(NEWLINE)) \
	  $$(if $$($1_EXTRA_MANIFEST_ATTR), \
	    $(PRINTF) "$$($1_EXTRA_MANIFEST_ATTR)\n" >> $$($1_MANIFEST_FILE) $$(NEWLINE)) \
	  $(ECHO) Creating $$($1_NAME) $$(NEWLINE) \
	  $$($1_JAR_CMD) --create $$($1_JAR_OPTIONS) --file $$@ --manifest $$($1_MANIFEST_FILE) $$(NEWLINE) \
	  $$($1_SCAPTURE_CONTENTS) \
	  $$($1_SCAPTURE_METAINF) \
	  $$($1_SUPDATE_CONTENTS) \
	  $$($1_JARINDEX) && true \
	, \
	  $(ECHO) Modifying $$($1_NAME) $$(NEWLINE) \
	  $$($1_CAPTURE_CONTENTS) \
	  $$($1_CAPTURE_METAINF) \
	  $(RM) $$($1_DELETES_FILE) $$(NEWLINE) \
	  $$($1_CAPTURE_DELETES) \
	  $(CAT) $$($1_DELETES_FILE) > $$($1_DELETESS_FILE) $$(NEWLINE) \
	  if [ -s $$($1_DELETESS_FILE) ]; then \
	    $(ECHO) "  deleting" `$(WC) -l $$($1_DELETESS_FILE) | $(AWK) '{ print $$$$1 }'` files && \
	    $(ZIPEXE) -q -d $$@ `$(CAT) $$($1_DELETESS_FILE)` ; \
	  fi $$(NEWLINE) \
	  $$($1_UPDATE_CONTENTS) true $$(NEWLINE) \
	  $$($1_JARINDEX) && true )

  # Add jar to target list
  $1 += $$($1_JAR)
endef

endif # _JAR_ARCHIVE_GMK