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39 lines
1.1 KiB
PHP
39 lines
1.1 KiB
PHP
#
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# \brief Utilities for generating and checking port hashes
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# \author Norman Feske
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# \date 2014-05-27
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#
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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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$(call check_tool,sha1sum)
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_PATCHES_IN_REP_DIR := $(foreach P,$(PATCHES),\
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$(wildcard $(REP_DIR)/$(subst $(REP_DIR)/,,$(P))))
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HASH_INPUT += $(sort $(_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) | sha1sum | 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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