From a5395435ffd12973da3b6e4959c8fe8290f952e0 Mon Sep 17 00:00:00 2001
From: Glen Barber <gjb@FreeBSD.org>
Date: Tue, 9 Feb 2016 19:27:38 +0000
Subject: [PATCH] Add logic to rotate the package repository, keyed on
 PKG_VERSION, and create a 'latest' symlink to the PKG_VERSION repository
 path.

Suggested by:	des
Sponsored by:	The FreeBSD Foundation
---
 Makefile      |  2 +-
 Makefile.inc1 | 21 ++++++++++++++++-----
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 1b0ee6370220..95a2a9b09b6c 100644
--- a/Makefile
+++ b/Makefile
@@ -128,7 +128,7 @@ TGTS=	all all-man buildenv buildenvvars buildkernel buildworld \
 	build32 builddtb distribute32 install32 xdev xdev-build xdev-install \
 	xdev-links native-xtools stageworld stagekernel stage-packages \
 	create-world-packages create-kernel-packages create-packages \
-	packages installconfig sign-packages
+	packages installconfig real-packages sign-packages
 
 TGTS+=	${SUBDIR_TARGETS}
 
diff --git a/Makefile.inc1 b/Makefile.inc1
index 88be22c205d2..0a4671010a41 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -1374,7 +1374,10 @@ _pkgbootstrap:
 	@env ASSUME_ALWAYS_YES=YES pkg bootstrap
 .endif
 
-packages:	stage-packages create-packages sign-packages
+packages:
+	${MAKE} -C ${.CURDIR} PKG_VERSION=${PKG_VERSION} real-packages
+
+real-packages:	stage-packages create-packages sign-packages
 
 stage-packages:
 	@mkdir -p ${WSTAGEDIR} ${KSTAGEDIR}
@@ -1413,7 +1416,7 @@ create-world-packages:	_pkgbootstrap
 			create -M ${DESTDIR}/$${pkgname}.ucl \
 			-p ${DESTDIR}/$${pkgname}.plist \
 			-r ${DESTDIR} \
-			-o ${REPODIR}/$$(pkg -o ABI_FILE=${DESTDIR}/bin/sh config ABI)/latest ; \
+			-o ${REPODIR}/$$(pkg -o ABI_FILE=${DESTDIR}/bin/sh config ABI)/${PKG_VERSION} ; \
 	done
 
 create-kernel-packages:	_pkgbootstrap
@@ -1441,7 +1444,7 @@ create-kernel-packages:	_pkgbootstrap
 		create -M ${DESTDIR}/${DISTDIR}/kernel-${flavor}.ucl \
 		-p ${DESTDIR}/${DISTDIR}/kernel-${flavor}.plist \
 		-r ${DESTDIR}/${DISTDIR} \
-		-o ${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/latest
+		-o ${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/${PKG_VERSION}
 .endfor
 .endif
 .if ${BUILDKERNELS:[#]} > 1 && !defined(NO_INSTALLEXTRAKERNELS)
@@ -1470,14 +1473,22 @@ create-kernel-packages:	_pkgbootstrap
 		create -M ${DESTDIR}/kernel.${_kernel}/kernel.${_kernel}-${flavor}.ucl \
 		-p ${DESTDIR}/kernel.${_kernel}/kernel.${_kernel}-${flavor}.plist \
 		-r ${DESTDIR}/kernel.${_kernel} \
-		-o ${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/latest
+		-o ${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/${PKG_VERSION}
 .endfor
 .endif
 .endfor
 .endif
 
 sign-packages:	_pkgbootstrap
-	@pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh repo ${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI) ${PKGSIGNKEY}
+	@[ -L "${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/latest" ] && \
+		unlink ${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/latest ; \
+	env PKG_VERSION=${PKG_VERSION} pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh repo \
+		-o ${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/${PKG_VERSION} \
+		${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/${PKG_VERSION} \
+		${PKGSIGNKEY} ; \
+	env PKG_VERSION=${PKG_VERSION} \
+		ln -s ${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/${PKG_VERSION} \
+		${REPODIR}/$$(pkg -o ABI_FILE=${WSTAGEDIR}/bin/sh config ABI)/latest
 
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