80 lines
2.2 KiB
Makefile
80 lines
2.2 KiB
Makefile
# $NetBSD: alternatives.mk,v 1.13 2018/05/16 21:23:02 rillig Exp $
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#
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# This Makefile fragment handles the alternatives system, registering a
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# package in the database.
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#
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# User-settable variables:
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#
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# (none)
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#
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# Package-settable variables:
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#
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# ALTERNATIVES_SRC
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# A _single_ file that contains the alternatives provided by the
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# package.
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#
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# Default value: The name of the ALTERNATIVES file in the package
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# directory, if it exists. Otherwise, nothing.
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#
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# Each line of the alternatives file contains two filenames:
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#
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# wrapper alternative
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#
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# The wrapper is the command that is run by the user.
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# The alternative is the implementation of that command that is
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# provided by the package.
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# Both paths are relative to PREFIX.
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# The paths may use placeholders of the form @VARNAME@, which are
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# replaced with the actual values as per FILES_SUBST.
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#
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# Variables defined by this file:
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#
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# PKG_ALTERNATIVES
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# The path to the pkg_alternatives command.
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#
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# Keywords: alternatives
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.if !defined(ALTERNATIVES_MK)
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ALTERNATIVES_MK= # defined
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_VARGROUPS+= alternatives
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_PKG_VARS.alternatives= ALTERNATIVES_SRC
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_SYS_VARS.alternatives= PKG_ALTERNATIVES
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.if exists(${.CURDIR}/ALTERNATIVES)
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ALTERNATIVES_SRC?= ${.CURDIR}/ALTERNATIVES
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.endif
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ALTERNATIVES_SRC?= # none
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.if !empty(ALTERNATIVES_SRC)
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${WRKDIR}/.altinstall: ${ALTERNATIVES_SRC}
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@{ ${ECHO} 'if ${TEST} $${STAGE} = "POST-INSTALL"; then'; \
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${ECHO} '${CAT} >./+ALTERNATIVES <<EOF'; \
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${SED} ${FILES_SUBST_SED} <${ALTERNATIVES_SRC}; \
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${ECHO} 'EOF'; \
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${ECHO} 'if ${TEST} -x ${PKG_ALTERNATIVES}; then'; \
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${ECHO} '${PKG_ALTERNATIVES} -gs register ./+ALTERNATIVES'; \
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${ECHO} 'fi'; \
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${ECHO} 'fi'; \
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} >${WRKDIR}/.altinstall
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${WRKDIR}/.altdeinstall: ${ALTERNATIVES_SRC}
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@{ ${ECHO} 'if ${TEST} $${STAGE} = "DEINSTALL"; then'; \
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${ECHO} 'if ${TEST} -x ${PKG_ALTERNATIVES}; then'; \
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${ECHO} '${PKG_ALTERNATIVES} -gs unregister ./+ALTERNATIVES'; \
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${ECHO} 'fi'; \
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${ECHO} '${RM} -f ./+ALTERNATIVES'; \
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${ECHO} 'fi'; \
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} >${WRKDIR}/.altdeinstall
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PRINT_PLIST_AWK+= /^libdata\/alternatives\// { next; }
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PKG_ALTERNATIVES= ${LOCALBASE}/sbin/pkg_alternatives
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INSTALL_TEMPLATES+= ${WRKDIR}/.altinstall
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DEINSTALL_TEMPLATES+= ${WRKDIR}/.altdeinstall
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.endif
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.endif # ALTERNATIVES_MK
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