classes/buildhistory: add new output history collection class

Create a new build output history reporting class, using testlab.bbclass
from meta-oe as a base. This records information from images produced by
the build process in text files structured suitably for tracking within
a git repository, thus enabling monitoring of changes over time.

Build history collection can be enabled simply by adding the following
to your local.conf:

INHERIT += "buildhistory"

The output after a build can then be found in BUILDHISTORY_DIR (defaults to
TMPDIR/buildhistory). If you set up this directory as a git repository and
set BUILDHISTORY_COMMIT to "1" in local.conf, the build history data will
be committed on every build.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>

3 files changed, 167 insertions, 6 deletions

diff --git a/meta/classes/buildhistory.bbclass b/meta/classes/buildhistory.bbclass
new file mode 100644
index 0000000000..21f8493ce5
--- /dev/null
+++ b/meta/classes/buildhistory.bbclass
@@ -0,0 +1,105 @@
+#
+# Records history of build output in order to detect regressions
+#
+# Based in part on testlab.bbclass
+#
+# Copyright (C) 2011 Intel Corporation
+# Copyright (C) 2007-2011 Koen Kooi <koen@openembedded.org>
+#
+
+BUILDHISTORY_DIR ?= "${TMPDIR}/buildhistory"
+BUILDHISTORY_DIR_IMAGE = "${BUILDHISTORY_DIR}/images/${MACHINE_ARCH}/${TCLIBC}/${IMAGE_BASENAME}"
+BUILDHISTORY_COMMIT ?= "0"
+BUILDHISTORY_COMMIT_AUTHOR ?= "buildhistory <buildhistory@${DISTRO}>"
+BUILDHISTORY_PUSH_REPO ?= ""
+
+buildhistory_get_image_installed() {
+	# Anything requiring the use of the packaging system should be done in here
+	# in case the packaging files are going to be removed for this image
+
+	mkdir -p ${BUILDHISTORY_DIR_IMAGE}
+
+	# Get list of installed packages
+	list_installed_packages | sort > ${BUILDHISTORY_DIR_IMAGE}/installed-package-names.txt
+	INSTALLED_PKGS=`cat ${BUILDHISTORY_DIR_IMAGE}/installed-package-names.txt`
+
+	# Produce installed package file and size lists and dependency graph
+	echo -n > ${BUILDHISTORY_DIR_IMAGE}/installed-packages.txt
+	echo -n > ${BUILDHISTORY_DIR_IMAGE}/installed-package-sizes.tmp
+	echo -e "digraph depends {\n    node [shape=plaintext]" > ${BUILDHISTORY_DIR_IMAGE}/depends.dot
+	for pkg in $INSTALLED_PKGS; do
+		pkgfile=`get_package_filename $pkg`
+		echo `basename $pkgfile` >> ${BUILDHISTORY_DIR_IMAGE}/installed-packages.txt
+		if [ -f $pkgfile ] ; then
+			pkgsize=`du -k $pkgfile | head -n1 | awk '{ print $1 }'`
+			echo $pkgsize $pkg >> ${BUILDHISTORY_DIR_IMAGE}/installed-package-sizes.tmp
+		fi
+
+		deps=`list_package_depends $pkg`
+		for dep in $deps ; do
+			echo "$pkg OPP $dep;" | sed -e 's:-:_:g' -e 's:\.:_:g' -e 's:+::g' | sed 's:OPP:->:g' >> ${BUILDHISTORY_DIR_IMAGE}/depends.dot
+		done
+
+		recs=`list_package_recommends $pkg`
+		for rec in $recs ; do
+			echo "$pkg OPP $rec [style=dotted];" | sed -e 's:-:_:g' -e 's:\.:_:g' -e 's:+::g' | sed 's:OPP:->:g' >> ${BUILDHISTORY_DIR_IMAGE}/depends.dot
+		done
+	done
+	echo "}" >>  ${BUILDHISTORY_DIR_IMAGE}/depends.dot
+
+	cat ${BUILDHISTORY_DIR_IMAGE}/installed-package-sizes.tmp | sort -n -r | awk '{print $1 "\tKiB " $2}' > ${BUILDHISTORY_DIR_IMAGE}/installed-package-sizes.txt
+	rm ${BUILDHISTORY_DIR_IMAGE}/installed-package-sizes.tmp
+
+	# Produce some cut-down graphs (for readability)
+	grep -v kernel_image ${BUILDHISTORY_DIR_IMAGE}/depends.dot | grep -v kernel_2 | grep -v kernel_3 > ${BUILDHISTORY_DIR_IMAGE}/depends-nokernel.dot
+	grep -v libc6 ${BUILDHISTORY_DIR_IMAGE}/depends-nokernel.dot | grep -v libgcc > ${BUILDHISTORY_DIR_IMAGE}/depends-nokernel-nolibc.dot
+	grep -v update_ ${BUILDHISTORY_DIR_IMAGE}/depends-nokernel-nolibc.dot > ${BUILDHISTORY_DIR_IMAGE}/depends-nokernel-nolibc-noupdate.dot
+	grep -v kernel_module ${BUILDHISTORY_DIR_IMAGE}/depends-nokernel-nolibc-noupdate.dot > ${BUILDHISTORY_DIR_IMAGE}/depends-nokernel-nolibc-noupdate-nomodules.dot
+
+	# Workaround for broken shell function dependencies
+	if false ; then
+		get_package_filename
+		list_package_depends
+		list_package_recommends
+	fi
+}
+
+buildhistory_get_imageinfo() {
+	# List the files in the image, but exclude date/time etc.
+	# This awk script is somewhat messy, but handles where the size is not printed for device files under pseudo
+	find ${IMAGE_ROOTFS} -ls | awk '{ if ( $7 ~ /[0-9]/ ) printf "%s %10-s %10-s %10s %s %s %s\n", $3, $5, $6, $7, $11, $12, $13 ; else printf "%s %10-s %10-s %10s %s %s %s\n", $3, $5, $6, 0, $10, $11, $12 }' > ${BUILDHISTORY_DIR_IMAGE}/files-in-image.txt
+
+	# Add some configuration information
+	echo "${MACHINE}: ${IMAGE_BASENAME} configured for ${DISTRO} ${DISTRO_VERSION}" > ${BUILDHISTORY_DIR_IMAGE}/build-id
+	echo "${@buildhistory_get_layers(d)}" >> ${BUILDHISTORY_DIR_IMAGE}/build-id
+}
+
+# By prepending we get in before the removal of packaging files
+ROOTFS_POSTPROCESS_COMMAND =+ "buildhistory_get_image_installed ; "
+
+IMAGE_POSTPROCESS_COMMAND += " buildhistory_get_imageinfo ; "
+
+def buildhistory_get_layers(d):
+	layertext = "Configured metadata layers:\n%s\n" % '\n'.join(get_layers_branch_rev(d))
+	return layertext
+
+
+buildhistory_commit() {
+	( cd ${BUILDHISTORY_DIR}/
+		git add ${BUILDHISTORY_DIR}/*
+		git commit ${BUILDHISTORY_DIR}/ -m "Build ${BUILDNAME} for machine ${MACHINE} configured for ${DISTRO} ${DISTRO_VERSION}" --author "${BUILDHISTORY_COMMIT_AUTHOR}" > /dev/null
+		if [ "${BUILDHISTORY_PUSH_REPO}" != "" ] ; then
+			git push -q ${BUILDHISTORY_PUSH_REPO}
+		fi) || true
+}
+
+python buildhistory_eventhandler() {
+	import bb.build
+	import bb.event
+
+	if isinstance(e, bb.event.BuildCompleted):
+		if e.data.getVar("BUILDHISTORY_COMMIT", True) == "1":
+			bb.build.exec_func("buildhistory_commit", e.data)
+}
+
+addhandler buildhistory_eventhandler
diff --git a/meta/classes/rootfs_ipk.bbclass b/meta/classes/rootfs_ipk.bbclass
index 4a5a2dd3be..b4b95c5645 100644
--- a/meta/classes/rootfs_ipk.bbclass
+++ b/meta/classes/rootfs_ipk.bbclass
@@ -143,11 +143,36 @@ remove_packaging_data_files() {
         mkdir ${IMAGE_ROOTFS}${opkglibdir}
 }
 
+list_installed_packages() {
+	grep ^Package: ${IMAGE_ROOTFS}${opkglibdir}/status | sed "s/^Package: //"
+}
+
+get_package_filename() {
+	name=`opkg-cl ${IPKG_ARGS} info $1 | grep -B 7 -A 7 "^Status.* \(\(installed\)\|\(unpacked\)\)" | awk '/^Package/ {printf $2"_"}'`
+	name=$name`opkg-cl ${IPKG_ARGS} info $1 | grep -B 7 -A 7 "^Status.* \(\(installed\)\|\(unpacked\)\)" | awk -F: '/^Version/ {printf $NF"_"}' | sed 's/^\s*//g'`
+	name=$name`opkg-cl ${IPKG_ARGS} info $1 | grep -B 7 -A 7 "^Status.* \(\(installed\)\|\(unpacked\)\)" | awk '/^Archi/ {print $2".ipk"}'`
+
+	fullname=`find ${DEPLOY_DIR_IPK} -name "$name" || true`
+	if [ "$fullname" = "" ] ; then
+		echo $name
+	else
+		echo $fullname
+	fi
+}
+
+list_package_depends() {
+	opkg-cl ${IPKG_ARGS} info $1 | grep ^Depends | sed -e 's/^Depends: //' -e 's/,//g' -e 's:([=<>]* [0-9a-zA-Z.~\-]*)::g'
+}
+
+list_package_recommends() {
+	opkg-cl ${IPKG_ARGS} info $1 | grep ^Recommends | sed -e 's/^Recommends: //' -e 's/,//g' -e 's:([=<>]* [0-9a-zA-Z.~\-]*)::g'
+}
+
 install_all_locales() {
 
     PACKAGES_TO_INSTALL=""
 
-    INSTALLED_PACKAGES=`grep ^Package: ${IMAGE_ROOTFS}${opkglibdir}/status |sed "s/^Package: //"|egrep -v -- "(-locale-|-dev$|-doc$|^kernel|^glibc|^ttf|^task|^perl|^python)"`
+    INSTALLED_PACKAGES=`list_installed_packages | egrep -v -- "(-locale-|-dev$|-doc$|^kernel|^glibc|^ttf|^task|^perl|^python)"`
 
     for pkg in $INSTALLED_PACKAGES
     do
diff --git a/meta/classes/rootfs_rpm.bbclass b/meta/classes/rootfs_rpm.bbclass
index 6973008c59..5fd45d758c 100644
--- a/meta/classes/rootfs_rpm.bbclass
+++ b/meta/classes/rootfs_rpm.bbclass
@@ -160,16 +160,47 @@ remove_packaging_data_files() {
 	rm -rf ${IMAGE_ROOTFS}${opkglibdir}
 }
 
+RPM_QUERY_CMD = '${RPM} --root ${IMAGE_ROOTFS} -D "_dbpath ${rpmlibdir}" \
+		-D "__dbi_txn create nofsync private"'
+
+list_installed_packages() {
+	${RPM_QUERY_CMD} -qa --qf "[%{NAME}\n]"
+}
+
+get_package_filename() {
+	resolve_package_rpm ${RPMCONF_TARGET_BASE}-base_archs.conf $1
+}
+
+list_package_depends() {
+	pkglist=`list_installed_packages`
+
+	for req in `${RPM_QUERY_CMD} -q --qf "[%{REQUIRES}\n]" $1`; do
+		if echo "$req" | grep -q "^rpmlib" ; then continue ; fi
+
+		realpkg=""
+		for dep in $pkglist; do
+			if [ "$dep" = "$req" ] ; then
+				realpkg="1"
+				echo $req
+				break
+			fi
+		done
+
+		if [ "$realdep" = "" ] ; then
+			${RPM_QUERY_CMD} -q --whatprovides $req --qf "%{NAME}\n"
+		fi
+	done
+}
+
+list_package_recommends() {
+	:
+}
 
 install_all_locales() {
 	PACKAGES_TO_INSTALL=""
 
 	# Generate list of installed packages...
-	INSTALLED_PACKAGES=$( \
-		${RPM} --root ${IMAGE_ROOTFS} -D "_dbpath ${rpmlibdir}" \
-		-D "__dbi_txn create nofsync private" \
-		-qa --qf "[%{NAME}\n]" | egrep -v -- "(-locale-|-dev$|-doc$|^kernel|^glibc|^ttf|^task|^perl|^python)" \
-	)
+	INSTALLED_PACKAGES=`list_installed_packages | egrep -v -- "(-locale-|-dev$|-doc$|^kernel|^glibc|^ttf|^task|^perl|^python)"`
 
 	# This would likely be faster if we did it in one transaction
 	# but this should be good enough for the few users of this function...