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274 lines
7.3 KiB
Makefile
274 lines
7.3 KiB
Makefile
#
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# \brief Download and patch port of 3rd-party source code
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# \author Norman Feske
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# \date 2014-05-07
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#
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# This makefile must be invoked from the port directory.
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#
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# Arguments:
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#
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# PORT - port description file
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#
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# This makefile includes the port description file. The namespace for variables
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# is organized as follows: Variables and functions that are private to the
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# prepare_port tool are prefixed with '_'. Port description files must not
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# declare any variable with a leading '_'. Variables that interface the
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# prepare_port tool with the port description file are written uppercase. Local
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# helper variables in the port description files should be written lowercase.
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#
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# XXX remove this line when the tool has stabilized
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STRICT_HASH ?= no
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default:
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# repository that contains the port description, used to look up patch files
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REP_DIR := $(realpath $(dir $(PORT))/..)
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#
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# Check presence of argument $1. Back out with error message $2 if not defined.
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#
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_assert = $(if $(strip $1),$1,$(info Error: $(strip $2))$(error ))
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#
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# Helper function that returns $1 if defined, otherwise it returns $2
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#
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_prefer = $(if $1,$1,$2)
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#
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# Include definitions provided by the port description file
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#
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include $(PORT)
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#
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# Common environment
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#
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SHELL := bash
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VERBOSE ?= @
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ECHO := echo -e
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HASHSUM := sha1sum
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BRIGHT_COL ?= \033[01;33m
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DARK_COL ?= \033[00;33m
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DEFAULT_COL ?= \033[0m
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MSG_PREFIX := $(ECHO) "$(DARK_COL)$(notdir $(PORT:.port=)) $(DEFAULT_COL)"
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MSG_DOWNLOAD := $(MSG_PREFIX)"download "
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MSG_APPLY := $(MSG_PREFIX)"apply "
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MSG_UPDATE := $(MSG_PREFIX)"update "
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MSG_INSTALL := $(MSG_PREFIX)"install "
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MSG_GENERATE := $(MSG_PREFIX)"generate "
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MSG_EXTRACT := $(MSG_PREFIX)"extract "
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#
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# Assertion for the presence of a LICENSE and VERSION declarations in the port
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# description
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#
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ifeq ($(LICENSE),)
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default: license_undefined
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license_undefined:
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@$(ECHO) "Error: License undefined"; false
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endif
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ifeq ($(VERSION),)
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default: version_undefined
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version_undefined:
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@$(ECHO) "Error: Version undefined"; false
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endif
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_PATCHES_IN_REP_DIR := $(foreach P,$(PATCHES),$(wildcard $(REP_DIR)/$(P)))
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_DST_HASH_FILE := $(notdir $(PORT:.port=)).hash
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#
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# Default rule that triggers the actual preparation steps
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#
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default: $(DOWNLOADS) _patch $(_DST_HASH_FILE) _dirs
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_dirs: $(DOWNLOADS)
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##
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## Generate the HASH file
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##
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# The hash depends on the content of the port description file and the
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# patches originating from REP_DIR. Patches that are downloaded are already
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# captured by the hash sums of the downloaded files, which are declared in the
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# port description file.
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#
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# During development when the files of MAKEFILE_LIST often change, the
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# keeping all port hashes up to date is an inconvenience. By setting
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# STRICT_HASH to 'no', the MAKEFILE_LIST can be exluded.
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#
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HASH_INPUT += $(_PATCHES_IN_REP_DIR) $(PORT)
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ifneq ($(STRICT_HASH),no)
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HASH_INPUT += $(MAKEFILE_LIST)
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endif
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$(_DST_HASH_FILE): $(HASH_INPUT) $(MAKEFILE_LIST)
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@$(MSG_GENERATE)$(notdir $@)
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$(VERBOSE)cat $(HASH_INPUT) | $(HASHSUM) | sed "s/ .*//" > $@
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_check_hash: $(_DST_HASH_FILE)
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ifneq ($(CHECK_HASH),no)
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$(VERBOSE)diff $< $(HASH_FILE) > /dev/null ||\
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($(ECHO) "Error: $(_REL_HASH_FILE) is out of date, expected" `cat $<` ""; false)
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endif
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##
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## Apply patches
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##
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# default arguments for the patch command
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PATCH_OPT ?= -p0
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#
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# Helper function to obtain options for applying a patch
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#
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_patch_opt = $(call _prefer,$(PATCH_OPT($1)),$(PATCH_OPT))
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#
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# Helper function to look up the input file for a patch
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#
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_patch_input = $(wildcard $1 $(REP_DIR)/$1)
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#
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# Rules for applying patches
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#
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# The 'patch' rule is a phony rule that is used as default rule. It triggers
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# all other steps such as downloading and hash-sum checks. For each patch, there
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# dependency to a phony rule.
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#
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_PATCH_TARGETS := $(addprefix phony/patches/,$(PATCHES))
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_patch: $(_PATCH_TARGETS)
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$(_PATCH_TARGETS): $(DOWNLOADS)
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phony/patches/%:
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@$(MSG_APPLY)$*
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$(VERBOSE)test -f $(firstword $(call _patch_input,$*) fail) ||\
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($(ECHO) "Error: Could not find patch $*"; false)
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$(VERBOSE)for i in $(call _patch_input,$*); do\
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patch -s $(call _patch_opt,$*) < $$i; done
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##
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## Assemble custom directory structures within the port directory
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##
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_DIR_TARGETS := $(addprefix phony/dirs/,$(DIRS))
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_dirs: $(_DIR_TARGETS)
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$(_DIR_TARGETS): _patch
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_dir_content = $(call _assert,$(DIR_CONTENT($1)), \
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Missing declaration of DIR_CONTENT($1))
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phony/dirs/%:
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@$(MSG_INSTALL)$*
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$(VERBOSE)mkdir -p $*
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$(VERBOSE)cp -Lrf $(call _dir_content,$*) $*
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##
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## Obtain source codes from a Git repository
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##
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_git_dir = $(call _assert,$(DIR($1)),Missing declaration of DIR($*))
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%.git:
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$(VERBOSE)test -n "$(REV($*))" ||\
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($(ECHO) "Error: Undefined revision for $*"; false);
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$(VERBOSE)test -n "$(URL($*))" ||\
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($(ECHO) "Error: Undefined URL for $*"; false);
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$(VERBOSE)dir=$(call _git_dir,$*);\
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test -d $$dir || $(MSG_DOWNLOAD)$(URL($*)); \
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test -d $$dir || git clone $(URL($*)) $$dir; \
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$(MSG_UPDATE)$$dir; \
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cd $$dir && git fetch && git reset -q --hard HEAD && git checkout -q $(REV($*))
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##
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## Obtain source codes from Subversion repository
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##
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_svn_dir = $(call _assert,$(DIR($1)),Missing declaration of DIR($*))
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%.svn:
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$(VERBOSE)test -n "$(REV($*))" ||\
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($(ECHO) "Error: Undefined revision for $*"; false);
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$(VERBOSE)test -n "$(URL($*))" ||\
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($(ECHO) "Error: Undefined URL for $*"; false);
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$(VERBOSE)dir=$(call _svn_dir,$*);\
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rm -rf $$dir; \
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$(MSG_DOWNLOAD)$(URL($*)); \
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svn export -q $(URL($*))@$(REV($*)) $$dir;
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##
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## Download a plain file
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##
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_file_name = $(call _prefer,$(NAME($1)),$(notdir $(URL($1))))
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%.file:
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$(VERBOSE)test -n "$(URL($*))" ||\
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($(ECHO) "Error: Undefined URL for $(call _file_name,$*)"; false);
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$(VERBOSE)name=$(call _file_name,$*);\
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(test -f $$name || $(MSG_DOWNLOAD)$(URL($*))); \
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(test -f $$name || wget --quiet $(URL($*)) -O $$name);
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$(VERBOSE)\
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($(ECHO) "$(SHA($*)) $(call _file_name,$*)" |\
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$(HASHSUM) -c > /dev/null 2> /dev/null) || \
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($(ECHO) Error: Hash sum check for $* failed; false)
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##
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## Download and unpack an archive
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##
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_archive_name = $(call _prefer,$(NAME($1)),$(notdir $(URL($1))))
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_archive_dir = $(call _assert,$(DIR($1)),Missing definition of DIR($*) in $(PORT))
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_tar_opt = $(call _prefer,$(TAR_OPT($1)),--strip-components=1)
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#
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# Archive extraction functions for various archive types
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#
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_extract_function(tgz) = tar xfz $(ARCHIVE) -C $(DIR) $(call _tar_opt,$1)
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_extract_function(tar.gz) = tar xfz $(ARCHIVE) -C $(DIR) $(call _tar_opt,$1)
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_extract_function(tar.xz) = tar xfJ $(ARCHIVE) -C $(DIR) $(call _tar_opt,$1)
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_extract_function(tar.bz2) = tar xfj $(ARCHIVE) -C $(DIR) $(call _tar_opt,$1)
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_extract_function(zip) = unzip -o -q -d $(DIR) $(ARCHIVE)
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_ARCHIVE_EXTS := tar.gz tar.xz tgz tar.bz2 zip
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#
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# Function that returns the matching extraction function for a given archive
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#
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# Because this function refers to the 'ARCHIVE' variable, it is only supposed
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# to work from the scope of the %.archive rule.
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#
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_extract_function = $(call _assert,\
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$(foreach E,$(_ARCHIVE_EXTS),\
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$(if $(filter %.$E,$(ARCHIVE)),\
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$(_extract_function($E)),)),\
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Don't know how to extract $(ARCHIVE))
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%.archive: ARCHIVE = $(call _archive_name,$*)
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%.archive: DIR = $(call _archive_dir,$*)
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%.archive: %.file
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@$(MSG_EXTRACT)$(ARCHIVE)
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$(VERBOSE)\
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mkdir -p $(DIR);\
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$(call _extract_function,$*)
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