# $NetBSD: fetch-list.mk,v 1.15 2016/08/09 15:16:35 asau Exp $

######################################################################
### fetch-list (PUBLIC)
######################################################################
### fetch-list is a public target to print out a standalone shell
### script to fetch all distfiles needed to build the package,
### including distfiles needed by dependencies.  This script does not
### perform any checksumming of the distfiles and does not resume
### interrupted file transfers.
###
.PHONY: fetch-list
fetch-list: fetch-list-header fetch-list-recursive

######################################################################
### fetch-list-header (PRIVATE)
######################################################################
### fetch-list-header prints out the preamble comments for the
### fetch-list shell script.
###
.PHONY: fetch-list-header
fetch-list-header:
	@${ECHO} '#!/bin/sh'
	@${ECHO} '#'
	@${ECHO} '# This is an auto-generated script, the result of running'
	@${ECHO} '# `${MAKE} fetch-list'"'"' in directory "'"`${PWD_CMD}`"'"'
	@${ECHO} '# on host "'"`${UNAME} -n`"'" on "'"`date`"'".'
	@${ECHO} '#'

######################################################################
### fetch-list-recursive (PRIVATE)
######################################################################
### fetch-list-recursive outputs the heart of the shell script by
### looping over all package directories for dependencies and
### outputting the shell script to fetch the distfiles for that
### dependency.
###
.PHONY: fetch-list-recursive
fetch-list-recursive:
	@${_DEPENDS_WALK_CMD} -r ${PKGPATH} |				\
	while read dir; do						\
	    (	cd ../../$$dir &&					\
		${RECURSIVE_MAKE} ${MAKEFLAGS} fetch-list-one-pkg |	\
		${AWK} '/^[^#]/ { FoundSomething = 1 }			\
			/^unsorted/ { gsub(/[[:space:]]+/, " \\\n\t") }	\
			/^echo/ { gsub(/;[[:space:]]+/, "\n") }		\
			{ block[line_c++] = $$0 }			\
			END { if (FoundSomething)			\
				for (line = 0; line < line_c; line++)	\
					print block[line] }'		\
	    );								\
	done

######################################################################
### fetch-list-one-pkg (PRIVATE)
######################################################################
### fetch-list-one-pkg outputs the standalone shell script code to
### fetch the distfiles for the package.
###
.PHONY: fetch-list-one-pkg
fetch-list-one-pkg:
.if !empty(_ALLFILES) && empty(INTERACTIVE_STAGE:Mfetch)
	@${ECHO}
	@${ECHO} '#'
	@location=`${PWD_CMD} | ${AWK} -F / '{ print $$(NF-1) "/" $$NF }'`; \
		${ECHO} '# Need additional files for ${PKGNAME} ('$$location')...'
.  for fetchfile in ${_ALLFILES}
.    if exists(${DYNAMIC_SITES_SCRIPT})
	@(if [ ! -f ${_DISTDIR}/${fetchfile:T} ]; then			\
		${ECHO};						\
		filesize=`${AWK} '					\
			/^Size/ && $$2 == "(${fetchfile})" { print $$4 } \
			' ${DISTINFO_FILE}` || true;			\
		${ECHO} '# Fetch ${fetchfile} ('$${filesize-???}' bytes):'; \
		${ECHO} '#';						\
		${ECHO} '${SH} -s ${fetchfile:T} <<"EOF" |(';		\
		${CAT} ${DYNAMIC_SITES_SCRIPT};				\
		${ECHO} EOF;						\
		${ECHO} read unsorted_sites;				\
		${ECHO} 'unsorted_sites="$${unsorted_sites} ${_MASTER_SITE_BACKUP}"'; \
		${ECHO} sites='"'${_ORDERED_SITES:Q}'"';		\
		${ECHO} "${MKDIR} ${_DISTDIR}";				\
		${ECHO} 'cd ${_DISTDIR} && { [ -f ${fetchfile} -o -f ${fetchfile:T} ] ||'; \
		${ECHO}	'for site in $$sites; do';			\
		${ECHO}	'	case "$${site}" in';			\
		${ECHO}	'	-*)';					\
		${ECHO} '		${_FETCH_CMD.${FETCH_USING}} ${_FETCH_BEFORE_ARGS.${FETCH_USING}} ${_FETCH_OUTPUT_ARGS.${FETCH_USING}} ${fetchfile:T} "$${site#-}" ${_FETCH_AFTER_ARGS.${FETCH_USING}} && break ||'; \
		${ECHO} '		${ECHO} ${fetchfile:T} not fetched';	\
		${ECHO}	'		;;';				\
		${ECHO}	'	*)';					\
		${ECHO} '		${_FETCH_CMD.${FETCH_USING}} ${_FETCH_BEFORE_ARGS.${FETCH_USING}} ${_FETCH_OUTPUT_ARGS.${FETCH_USING}} ${fetchfile:T} "$${site}${fetchfile:T}" ${_FETCH_AFTER_ARGS.${FETCH_USING}} && break ||'; \
		${ECHO} '		${ECHO} ${fetchfile:T} not fetched';	\
		${ECHO}	'		;;';				\
		${ECHO}	'	esac;';			\
		${ECHO}	'done; }';					\
		${ECHO} ')';						\
	fi)
.    else
	@(if [ ! -f ${_DISTDIR}/${fetchfile:T} ]; then			\
		${ECHO};						\
		filesize=`${AWK} '					\
			/^Size/ && $$2 == "(${fetchfile})" { print $$4 } \
			' ${DISTINFO_FILE}` || true;			\
		${ECHO} '# Fetch ${fetchfile} ('$${filesize-???}' bytes):'; \
		${ECHO} '#';						\
		${ECHO} 'unsorted_sites="${SITES.${fetchfile:T:S/=/--/}} ${_MASTER_SITE_BACKUP}"'; \
		${ECHO} sites='"'${_ORDERED_SITES:Q}'"';		\
		${ECHO} "${MKDIR} ${_DISTDIR}";				\
		${ECHO} 'cd ${_DISTDIR} && { [ -f ${fetchfile} -o -f ${fetchfile:T} ] ||'; \
		${ECHO}	'for site in $$sites; do';			\
		${ECHO}	'	case "$${site}" in';			\
		${ECHO}	'	-*)';					\
		${ECHO} '		${_FETCH_CMD.${FETCH_USING}} ${_FETCH_BEFORE_ARGS.${FETCH_USING}} ${_FETCH_OUTPUT_ARGS.${FETCH_USING}} ${fetchfile:T} "$${site#-}" ${_FETCH_AFTER_ARGS.${FETCH_USING}} && break ||'; \
		${ECHO} '		${ECHO} ${fetchfile:T} not fetched';	\
		${ECHO}	'		;;';				\
		${ECHO}	'	*)';					\
		${ECHO} '		${_FETCH_CMD.${FETCH_USING}} ${_FETCH_BEFORE_ARGS.${FETCH_USING}} ${_FETCH_OUTPUT_ARGS.${FETCH_USING}} ${fetchfile:T} "$${site}${fetchfile:T}" ${_FETCH_AFTER_ARGS.${FETCH_USING}} && break ||'; \
		${ECHO} '		${ECHO} ${fetchfile:T} not fetched';	\
		${ECHO}	'		;;';				\
		${ECHO}	'	esac;';			\
		${ECHO}	'done; }';					\
	fi)
.    endif
.  endfor
.endif