#
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# CDDL HEADER START
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#
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# The contents of this file are subject to the terms of the
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# Common Development and Distribution License (the "License").
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# You may not use this file except in compliance with the License.
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#
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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# or http://www.opensolaris.org/os/licensing.
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# See the License for the specific language governing permissions
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# and limitations under the License.
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#
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# When distributing Covered Code, include this CDDL HEADER in each
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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# If applicable, add the following below this CDDL HEADER, with the
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# fields enclosed by brackets "[]" replaced with your own identifying
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# information: Portions Copyright [yyyy] [name of copyright owner]
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#
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# CDDL HEADER END
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#
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#
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# Copyright (c) 2010, 2017, Oracle and/or its affiliates. All rights reserved.
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#
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GIT = /usr/bin/git
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COMPONENT_PREP_GIT?=yes
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ifeq ($(strip $(COMPONENT_PREP_GIT)), yes)
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#
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# Anything that we pull from a GIT repo must have a GIT_REPO{_[0-9]+} and
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# GIT_COMMIT_ID{_[0-9]+} to match.
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#
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GIT_SUFFIXES = $(subst GIT_REPO_,, $(filter GIT_REPO_%, $(.VARIABLES)))
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# Templates for git variables and rules. We separate the variable assignments
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# from the rules so that all the variable assignments are given a chance to
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# complete before those variables are used in targets or prerequisites, where
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# they'll be expanded immediately.
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define git-variables
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ifdef GIT_REPO$(1)
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ifeq ("",$(strip $(or $(GIT_BRANCH$(1)),$(GIT_COMMIT_ID$(1)))))
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$$(error GIT_BRANCH$(1) and/or GIT_COMMIT_ID$(1) must be defined)
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endif
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ifdef GIT_BRANCH$(1)
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GIT_BRANCH_ARG$(1) = -b $$(GIT_BRANCH$(1))
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else
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GIT_BRANCH_ARG$(1) = -b master
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endif
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# If the label is not already defined (including to empty), set it to the version.
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COMPONENT_LABEL$(1) ?= $$(COMPONENT_VERSION$(1))
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# The source directory is <name>-(<label>|<version>)[-(<tag>|<branch>)][-<commit].
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COMPONENT_SRC$(1) ?= $$(COMPONENT_NAME$(1))$$(COMPONENT_LABEL$(1):%=-%)$$($$(or $$(GIT_TAG$(1)),$$(GIT_BRANCH$(1))))$$(GIT_COMMIT_ID$(1):%=-%)
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COMPONENT_ARCHIVE$(1) ?= $$(COMPONENT_SRC$(1)).tar.gz
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# If the source is github attempt to generate an archive url. Defining
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# COMPONENT_ARCHIVE_URL here messes with prep-download.mk, which keys off of
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# that variable to build download rules, so keep track of which suffixes
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# generated a github archive URL, and prep-download.mk will use that list to
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# remove those URLs. If the primary (unsuffixed) archive is from github, then
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# we add a dummy __BLANK__ suffix to the list, and filter that out separately.
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ifeq (github,$(findstring github,$(GIT_REPO$(1))))
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COMPONENT_ARCHIVE_URL$(1) ?= $(GIT_REPO$(1))/archive/$(GIT_BRANCH$(1)).tar.gz
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GITHUB_ARCHIVE_SUFFIXES += $(or $(strip $(1:_%=%)),__BLANK__)
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else
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COMPONENT_ARCHIVE_SRC$(1) = git
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endif
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CLEAN_PATHS += $$(COMPONENT_SRC$(1))
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CLOBBER_PATHS += $$(COMPONENT_ARCHIVE$(1))
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SOURCE_DIR$(1) = $$(COMPONENT_DIR)/$$(COMPONENT_SRC$(1))
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endif
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endef
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define git-rules
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ifdef GIT_REPO$(1)
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download:: $$(USERLAND_ARCHIVES)$$(COMPONENT_ARCHIVE$(1))
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# First attempt to download a cached archive of the SCM repo at the proper
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# changeset ID, If COMPONENT_ARCHIVE_URL is defined try that as well.
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# If that fails, create an archive by cloning the SCM repo,
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# updating to the selected changeset, archiving that directory, and cleaning up
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# when complete.
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#
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# GIT CLONE ARGS
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# A shallow clone (--depth=1) to git clone takes only the top level (named)
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# commits on any branches or tags and can cause use of other commit IDs to
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# fail. As such, it should never be used here as it can make it impossible to
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# reliably reproduce archives created from the result since git clone (unlike
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# mercurial) currently has no way of cloning to a specific commit id.
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$$(USERLAND_ARCHIVES)$$(COMPONENT_ARCHIVE$(1)): $(MAKEFILE_PREREQ)
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$$(FETCH) --file $$@ $$(GIT_HASH$(1):%=--hash %) --url GIT || \
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($$(FETCH) --file $$@ $$(COMPONENT_ARCHIVE_URL$(1):%=--url %) || \
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(TMP_REPO=$$$$($(MKTEMP) --directory) && \
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$(GIT) clone $$(GIT_REPO$(1)) $$(GIT_BRANCH_ARG$(1)) $$$${TMP_REPO} && \
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(cd $$$${TMP_REPO} ; $(GIT) checkout \
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$$(GIT_COMMIT_ID$(1))) && \
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(cd $$$${TMP_REPO} ; \
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$(GIT) config tar.tar.bz2.command "bzip2 -c"; \
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$(GIT) config tar.tar.xz.command "xz -c"; \
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$(GIT) archive \
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--format $(subst $(COMPONENT_SRC$(1)).,,$(COMPONENT_ARCHIVE$(1))) \
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--prefix $$(COMPONENT_SRC$(1))/ \
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$$(or $$(GIT_COMMIT_ID$(1)),$$(GIT_BRANCH$(1)))) > $$@ && \
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$(RM) -r $$$${TMP_REPO} ) && \
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( GIT_HASH=$$$$(digest -a sha256 $$@) && \
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$(GSED) -i \
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-e "s/\(GIT_HASH$(1)[[:space:]]*=[[:space:]]*\).*/\1sha256:$$$${GIT_HASH}/" \
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Makefile ))
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USERLAND_REQUIRED_PACKAGES += developer/versioning/git
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endif
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endef
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# Evaluate the variable assignments immediately
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$(eval $(call git-variables,))
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$(foreach suffix, $(GIT_SUFFIXES), $(eval $(call git-variables,_$(suffix))))
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$(eval $(call git-rules,))
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$(foreach suffix, $(GIT_SUFFIXES), $(eval $(call git-rules,_$(suffix))))
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endif
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