buildhistory: allow disabling image and/or package history

Add a BUILDHISTORY_FEATURES variable which can be set to "" to disable
buildhistory with the class still inherited.

BUILDHISTORY_FEATURES by default contains two items - image and package.
You can use these to disable the image and package history functions
individually - this is particularly useful if you want to get the image
contents and dependency graphs but don't need the package history.

Additionally, ensure we quit shell procedures gracefully by using return
instead of exit.

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

diff --git a/meta/classes/buildhistory.bbclass b/meta/classes/buildhistory.bbclass
index 6c2d4e9653d02173781b034c39668ad2b8af6bc8..3a68d8d6f585a32901e26a9a8fbe5a7e55d4db38 100644 (file)
--- a/meta/classes/buildhistory.bbclass
+++ b/meta/classes/buildhistory.bbclass
@@ -7,6 +7,7 @@
 # Copyright (C) 2007-2011 Koen Kooi <koen@openembedded.org>
 #
 
+BUILDHISTORY_FEATURES ?= "image package"
 BUILDHISTORY_DIR ?= "${TMPDIR}/buildhistory"
 BUILDHISTORY_DIR_IMAGE = "${BUILDHISTORY_DIR}/images/${MACHINE_ARCH}/${TCLIBC}/${IMAGE_BASENAME}"
 BUILDHISTORY_DIR_PACKAGE = "${BUILDHISTORY_DIR}/packages/${MULTIMACH_TARGET_SYS}/${PN}"
@@ -25,6 +26,9 @@ PACKAGEFUNCS += "buildhistory_emit_pkghistory"
 python buildhistory_emit_pkghistory() {
        import re
 
+       if not "package" in (d.getVar('BUILDHISTORY_FEATURES', True) or "").split():
+               return 0
+
        pkghistdir = d.getVar('BUILDHISTORY_DIR_PACKAGE', True)
 
        class RecipeInfo:
@@ -269,6 +273,10 @@ 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
 
+       if [ "${@base_contains('BUILDHISTORY_FEATURES', 'image', '1', '0', d)}" = "0" ] ; then
+               return
+       fi
+
        mkdir -p ${BUILDHISTORY_DIR_IMAGE}
 
        # Get list of installed packages
@@ -317,6 +325,10 @@ buildhistory_get_image_installed() {
 }
 
 buildhistory_get_imageinfo() {
+       if [ "${@base_contains('BUILDHISTORY_FEATURES', 'image', '1', '0', d)}" = "0" ] ; then
+               return
+       fi
+
        # 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
        ( cd ${IMAGE_ROOTFS} && find . -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 }' | sort -k5 > ${BUILDHISTORY_DIR_IMAGE}/files-in-image.txt )
@@ -371,7 +383,7 @@ def buildhistory_get_imagevars(d):
 buildhistory_commit() {
        if [ ! -d ${BUILDHISTORY_DIR} ] ; then
                # Code above that creates this dir never executed, so there can't be anything to commit
-               exit
+               return
        fi
 
        ( cd ${BUILDHISTORY_DIR}/
@@ -396,8 +408,9 @@ python buildhistory_eventhandler() {
        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)
+               if e.data.getVar('BUILDHISTORY_FEATURES', True).strip():
+                       if e.data.getVar("BUILDHISTORY_COMMIT", True) == "1":
+                               bb.build.exec_func("buildhistory_commit", e.data)
 }
 
 addhandler buildhistory_eventhandler