97 lines
2.9 KiB
Makefile
97 lines
2.9 KiB
Makefile
# $NetBSD: subst.mk,v 1.11 2004/03/07 09:29:25 grant Exp $
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#
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# This Makefile fragment implements a general text replacement facility.
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# Package makefiles define a ``class'', for each of which a paricular
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# substitution description can be defined. For each class of files, a
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# target subst-<class> is created to perform the text replacement.
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#
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# The following variables are used:
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#
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# SUBST_CLASSES
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# A list of class names. A new class name must be appended (+=).
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#
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# SUBST_STAGE.<class>
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# "stage" at which we do the text replacement, e.g. pre-configure,
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# post-build, etc.
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#
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# SUBST_MESSAGE.<class>
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# message to display, noting what is being substituted
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#
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# SUBST_FILES.<class>
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# files on which to run the substitution; these are relative to
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# ${WRKSRC}
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#
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# SUBST_SED.<class>
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# sed(1) substitution expression to run on the specified files
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#
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# SUBST_FILTER_CMD.<class>
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# filter used to perform the actual substitution on the specified
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# files. Defaults to ${SED} ${SUBST_SED.<class>}.
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ECHO_SUBST_MSG?= ${ECHO}
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# _SUBST_IS_TEXT_FILE returns 0 if $${file} is a text file.
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_SUBST_IS_TEXT_FILE?= \
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${FILE_CMD} $${file} | ${EGREP} "(executable .* script|shell script|text)" >/dev/null 2>&1
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.for _class_ in ${SUBST_CLASSES}
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_SUBST_COOKIE.${_class_}= ${WRKDIR}/.subst_${_class_}_done
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. if defined(SUBST_SED.${_class_}) && !empty(SUBST_SED.${_class_})
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SUBST_FILTER_CMD.${_class_}?= ${SED} ${SUBST_SED.${_class_}}
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. else
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SUBST_FILTER_CMD.${_class_}?= # empty
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. endif
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SUBST_TARGETS+= subst-${_class_}
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_SUBST_TARGETS.${_class_}= subst-${_class_}-message
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_SUBST_TARGETS.${_class_}+= ${_SUBST_COOKIE.${_class_}}
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_SUBST_TARGETS.${_class_}+= subst-${_class_}-cookie
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.ORDER: ${_SUBST_TARGETS.${_class_}}
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. if defined(SUBST_STAGE.${_class_})
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${SUBST_STAGE.${_class_}}: subst-${_class_}
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. endif
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.PHONY: subst-${_class_}
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subst-${_class_}: ${_SUBST_TARGETS.${_class_}}
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.PHONY: subst-${_class_}-message
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subst-${_class_}-message:
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. if defined(SUBST_MESSAGE.${_class_})
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${_PKG_SILENT}${_PKG_DEBUG} \
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${ECHO_SUBST_MSG} "=> ${SUBST_MESSAGE.${_class_}}"
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. endif
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.PHONY: subst-${_class_}-cookie
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subst-${_class_}-cookie:
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${_PKG_SILENT}${_PKG_DEBUG} \
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${TOUCH} ${TOUCH_FLAGS} ${_SUBST_COOKIE.${_class_}}
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${_SUBST_COOKIE.${_class_}}:
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. if !empty(SUBST_FILTER_CMD.${_class_})
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${_PKG_SILENT}${_PKG_DEBUG} \
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cd ${WRKSRC}; \
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files="${SUBST_FILES.${_class_}}"; \
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case "$$files" in \
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"") ;; \
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*) for file in $${files}; do \
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if ${_SUBST_IS_TEXT_FILE}; then \
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${MV} -f $$file $$file.subst.sav || exit 1; \
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${CAT} $$file.subst.sav \
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| ${SUBST_FILTER_CMD.${_class_}} \
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> $$file; \
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if [ -x $$file.subst.sav ]; then \
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${CHMOD} +x $$file; \
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fi; \
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if ${CMP} -s $$file.subst.sav $$file; then \
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${MV} -f $$file.subst.sav $$file; \
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else \
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${ECHO} $$file >> ${.TARGET}; \
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fi; \
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fi; \
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done ;; \
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esac
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. endif
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.endfor
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