Enable build dir outside of the poky directory

You need to first set up the build directory by sourcing the poky build script,
after that builds can be run in that directory so long as bitbake is in $PATH
removing the need to source the init script for each build.

i.e:
$ . poky-init-build-env ~/my-build
$ bitbake some-image
<<later, in a different shell>>
$ cd ~/my-build
$ export PATH=/path/to/bitbake/bin:$PATH
$ bitbake an-image

This patch also removes use of OEROOT in recipes, etc.

Signed-off-by: Joshua Lock <josh@linux.intel.com>

5 files changed, 78 insertions, 45 deletions

diff --git a/scripts/poky-env-internal b/scripts/poky-env-internal
index 54b6ee896..862ce7aec 100755
--- a/scripts/poky-env-internal
+++ b/scripts/poky-env-internal
@@ -19,19 +19,30 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 
-# Change this to the location of this file.
-# Also update the locations at the top of conf/local.conf
+# scripts/ is a sub-directory of OEROOT, we use readlink to get the full path
+SCRIPTPATH=`readlink -f "$BASH_SOURCE"`
+OEROOT="`dirname $SCRIPTPATH`/../"
 
-OEROOT=`pwd`
 if [ "x$BDIR" = "x" ]; then
-	if [ "x$1" = "x" ]; then
-		BDIR="build"
-	else
-		BDIR="$1"
-	fi
+	  if [ "x$1" = "x" ]; then
+        BDIR="build"
+	  else
+		    BDIR=`readlink -f "$1"`
+	  fi
+fi
+if [[ "$BDIR" = /* ]] ; then
+    BUILDDIR="$BDIR"
+else
+    BUILDDIR="`pwd`/$BDIR"
 fi
-BUILDDIR="$OEROOT/$BDIR/"
 unset BDIR
+
+mkdir -p $BUILDDIR/conf
+if ! (test -w "$BUILDDIR"); then
+    echo >&2 "Error: Cannot write to $BUILDDIR, perhaps try sourcing with a writable path? i.e. . poky-init-build-env ~/my-build"
+    return
+fi
+
 BITBAKEDIR="$OEROOT/bitbake$BBEXTRA/"
 PKGDIR="$OEROOT/meta/"
 BBPATH="$BITBAKEDIR $PKGDIR"
@@ -51,9 +62,8 @@ do
         continue
     fi
     if [ -e $OEROOT/$repo/poky-extra-environment ]; then
-	. $OEROOT/$repo/poky-extra-environment
+	      . $OEROOT/$repo/poky-extra-environment
     fi
-    BBPATH=" $BBPATH $OEROOT/$repo"
 done
 
 BBPATH="$BBPATH $HOME/.oe $HOME/.poky $BUILDDIR"
@@ -78,12 +88,13 @@ BUILD_SYS="$BUILD_ARCH-$BUILD_OS"
 
 PATH="$BITBAKEDIR/bin/:$OEROOT/scripts:$PATH"
 
-cd "$BUILDDIR"
-
 # Remove any symlinks from paths
 BITBAKEDIR=`readlink -f "$BITBAKEDIR"`
 PKGDIR=`readlink -f "$PKGDIR"`
 BUILDDIR=`readlink -f "$BUILDDIR"`
+OEROOT=`readlink -f "$OEROOT"`
+
+cd "$BUILDDIR"
 
 if ! (test -d "$BITBAKEDIR" && test -d "$PKGDIR" && test -d "$BUILDDIR"); then
     echo >&2 "Error: Not all directories exist! Did you run this script in poky directory?"
@@ -91,7 +102,7 @@ if ! (test -d "$BITBAKEDIR" && test -d "$PKGDIR" && test -d "$BUILDDIR"); then
 fi
 
 if [ "x" = "x$POKYLOCALCONF" ]; then
-    POKYLOCALCONF="$BUILDDIR/conf/local.conf.sample"
+    POKYLOCALCONF="$OEROOT/build/conf/local.conf.sample"
 fi
 if ! (test -r "$BUILDDIR/conf/local.conf"); then
     echo "You had no conf/local.conf file. Poky has created this configuration file for you"
@@ -105,17 +116,19 @@ if ! (test -r "$BUILDDIR/conf/local.conf"); then
 fi
 
 if [ "x" = "x$POKYLAYERCONF" ]; then
-    POKYLAYERCONF="$BUILDDIR/conf/bblayers.conf.sample"
+    POKYLAYERCONF="$OEROOT/build/conf/bblayers.conf.sample"
 fi
 if ! (test -r "$BUILDDIR/conf/bblayers.conf"); then
-    cp -f $POKYLAYERCONF $BUILDDIR/conf/bblayers.conf
+    # Put the abosolute path to the layers in bblayers.conf so we can run
+    # bitbake without the init script after the first run
+    sed "s|##POKYBASE##|$OEROOT|g" $POKYLAYERCONF > $BUILDDIR/conf/bblayers.conf
 fi
 
 # Prevent disturbing a new GIT clone in same console
 unset POKYLOCALCONF
 unset POKYLAYERCONF
 
-export BBPATH OEROOT BUILD_SYS BUILDDIR
+export BBPATH BUILD_SYS BUILDDIR
 
 # Kill off the TERMINFO variable, as glibc will grab its contents in its 'make
 # install' if set
@@ -141,4 +154,4 @@ echo "Common targets are poky-image-minimal, poky-image-sato, meta-toolchain or
 echo
 echo "You can also run generated qemu images with a command like 'runqemu qemux86'"
 
-export BB_ENV_EXTRAWHITE="MACHINE DISTRO POKYMODE POKYLIBC OEROOT http_proxy ftp_proxy SSH_AGENT_PID SSH_AUTH_SOCK BB_SRCREV_POLICY SDKMACHINE BB_NUMBER_THREADS"
+export BB_ENV_EXTRAWHITE="MACHINE DISTRO POKYMODE POKYLIBC http_proxy ftp_proxy SSH_AGENT_PID SSH_AUTH_SOCK BB_SRCREV_POLICY SDKMACHINE BB_NUMBER_THREADS"
diff --git a/scripts/pstage-scanner b/scripts/pstage-scanner
index 923491258..4a27aa5d2 100755
--- a/scripts/pstage-scanner
+++ b/scripts/pstage-scanner
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 ##
-## This script will scan all of the packages in ${OEROOT}/pstage (or argv[1])
+## This script will scan all of the packages in PSTAGE_DIR (or argv[1])
 ## in search of packages which install files outside of their native sysroot
 ##
 
@@ -16,15 +16,24 @@ def main():
     """Generate a list of pstage packages and scan them for badness"""
     package_list = []
 
-    ## First we walk the pstage directory, let's assume we're running from
-    ## a sibling of pstage (i.e. scripts) if no path defined
     try:
         path = sysv.arg[1]
     except:
-        path = os.path.join(os.environ.get("OEROOT"), "pstage")
+        # Assume pstage is a child of tmp, Poky's default
+        tmpdir = None
+        sub.Popen(["bitbake", "-e"], stdout=sub.PIPE,stderr=sub.PIPE)
+        err, out = p.communicate()
+        if (!out):
+            print("bitbake not in your environment, try pstage-scanner /some/path/to/pstage")
+            exit
+        for line in out:
+            if line.find("PSTAGE_DIR=") != -1:
+                tmpdir = line.partition("=")[2].strip("\"")
+                break
 
     if len(path) < 1 or not os.path.exists(path):
-        path = os.path.join(os.environ.get("OEROOT"), "pstage")
+        print ("No path defined and bitbake not in your environment, try pstage-scanner /some/path/to/pstage")
+        exit
     
     global logf
     try:
diff --git a/scripts/qemuimage-tests/sanity/boot b/scripts/qemuimage-tests/sanity/boot
index b4c0094f2..57b204b17 100755
--- a/scripts/qemuimage-tests/sanity/boot
+++ b/scripts/qemuimage-tests/sanity/boot
@@ -9,8 +9,7 @@
 # This file is licensed under the GNU General Public License,
 # Version 2.
 #
-
-. $OEROOT/scripts/qemuimage-testlib
+. $POKYBASE/scripts/qemuimage-testlib
 
 TIMEOUT=120
 QEMU_IPADDR="192.168.7.2"
diff --git a/scripts/qemuimage-tests/sanity/ssh b/scripts/qemuimage-tests/sanity/ssh
index 7dd895951..3c7638cc2 100755
--- a/scripts/qemuimage-tests/sanity/ssh
+++ b/scripts/qemuimage-tests/sanity/ssh
@@ -9,7 +9,7 @@
 # Version 2.
 #
 
-. $OEROOT/scripts/qemuimage-testlib
+. $POKYBASE/scripts/qemuimage-testlib
 
 TIMEOUT=360
 QEMU_IPADDR="192.168.7.2"
diff --git a/scripts/runqemu b/scripts/runqemu
index c7c51ec77..bb26f8b63 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -19,11 +19,23 @@
 
 
 if [ "x$BUILDDIR" = "x" ]; then
-    echo "You need to source poky-init-build-env before running this script"
-    exit 1
+    # BUILDDIR unset, try and get TMPDIR from bitbake
+    type -P bitbake &>/dev/null || {
+        echo "You either need bitbake in your PATH or to source poky-init-build-env before running this script" >&2; exit 1; }
+
+    # we have bitbake in PATH, get TMPDIR from the environment
+    TMPDIR=`bitbake -e | grep TMPDIR=\" | cut -d '=' -f2 | cut -d '"' -f2`
+else
+    TMPDIR=$BUILDDIR/tmp
+fi
+
+if ! (test -d "$TMPDIR"); then
+    echo >&2 "Error: no $TMPDIR directory, please re-run the script from the Poky build directory."
+    return
 fi
 
-INTERNAL_SCRIPT=`which poky-qemu-internal`
+SCRIPTSDIR=`dirname "$0"`
+INTERNAL_SCRIPT=SCRIPTSDIR/poky-qemu-internal`
 
 if [ "x$1" = "x" ]; then
     echo
@@ -67,9 +79,9 @@ fi
 
 if [ "$MACHINE" = "qemuarm" -o "$MACHINE" = "spitz" -o "$MACHINE" = "borzoi" -o "$MACHINE" = "akita" -o "$MACHINE" = "nokia800" ]; then
     if [ "x$ZIMAGE" = "x" ]; then
-        ZIMAGE=$BUILDDIR/tmp/deploy/images/zImage-$MACHINE.bin
+        ZIMAGE=$TMPDIR/deploy/images/zImage-$MACHINE.bin
     fi
-    CROSSPATH=$BUILDDIR/sysroots/$BUILD_SYS/arm-poky-linux-gnueabi/bin
+    CROSSPATH=$TMPDIR/sysroots/$BUILD_SYS/arm-poky-linux-gnueabi/bin
 fi
 
 function findimage {
@@ -96,7 +108,7 @@ function findimage {
 if [ "$MACHINE" = "qemuarm" ]; then
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-            T=$BUILDDIR/tmp/deploy/images
+            T=$TMPDIR/deploy/images
             findimage $T qemuarm ext3 "poky-image-sdk poky-image-sato poky-image-minimal"
         fi
     fi
@@ -104,34 +116,34 @@ fi
 
 if [ "$MACHINE" = "qemumips" ]; then
     if [ "x$ZIMAGE" = "x" ]; then
-        ZIMAGE=$BUILDDIR/tmp/deploy/images/vmlinux-$MACHINE.bin
+        ZIMAGE=$TMPDIR/tmp/deploy/images/vmlinux-$MACHINE.bin
     fi
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-            T=$BUILDDIR/tmp/deploy/images
+            T=$TMPDIR/tmp/deploy/images
             findimage $T $MACHINE ext3 "poky-image-sdk poky-image-sato poky-image-minimal"
         fi
     fi
-    CROSSPATH=$BUILDDIR/tmp/sysroots/$BUILD_SYS/usr
+    CROSSPATH=$TMPDIR/tmp/sysroots/$BUILD_SYS/usr
 fi
 
 if [ "$MACHINE" = "qemuppc" ]; then
     if [ "x$ZIMAGE" = "x" ]; then
-        ZIMAGE=$BUILDDIR/tmp/deploy/images/zImage-$MACHINE.bin
+        ZIMAGE=$TMPDIR/tmp/deploy/images/zImage-$MACHINE.bin
     fi
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-            T=$BUILDDIR/tmp/deploy/images
+            T=$TMPDIR/tmp/deploy/images
             findimage $T $MACHINE ext3 "poky-image-sdk poky-image-sato poky-image-minimal"
         fi
     fi
-    CROSSPATH=$BUILDDIR/tmp/sysroots/$BUILD_SYS/usr
+    CROSSPATH=$TMPDIR/tmp/sysroots/$BUILD_SYS/usr
 fi
 
 if [ "$MACHINE" = "spitz" ]; then
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-           HDIMAGE=$BUILDDIR/tmp/deploy/images/poky-image-sato-spitz.ext3
+           HDIMAGE=$TMPDIR/tmp/deploy/images/poky-image-sato-spitz.ext3
         fi
     fi
 fi
@@ -139,7 +151,7 @@ fi
 if [ "$MACHINE" = "akita" ]; then
     if [ "$TYPE" = "jffs2" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-           HDIMAGE=$BUILDDIR/tmp/deploy/images/poky-image-sato-akita.jffs2
+           HDIMAGE=$TMPDIR/tmp/deploy/images/poky-image-sato-akita.jffs2
         fi
     fi
 fi
@@ -147,7 +159,7 @@ fi
 if [ "$MACHINE" = "nokia800" ]; then
     if [ "$TYPE" = "jffs2" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-           HDIMAGE=$BUILDDIR/tmp/deploy/images/poky-image-sato-nokia800.jffs2
+           HDIMAGE=$TMPDIR/tmp/deploy/images/poky-image-sato-nokia800.jffs2
         fi
     fi
 fi
@@ -155,15 +167,15 @@ fi
 
 if [ "$MACHINE" = "qemux86" ]; then
     if [ "x$ZIMAGE" = "x" ]; then
-        ZIMAGE=$BUILDDIR/tmp/deploy/images/bzImage-$MACHINE.bin
+        ZIMAGE=$TMPDIR/tmp/deploy/images/bzImage-$MACHINE.bin
     fi
     if [ "$TYPE" = "ext3" ]; then
         if [ "x$HDIMAGE" = "x" ]; then
-            T=$BUILDDIR/tmp/deploy/images
+            T=$TMPDIR/tmp/deploy/images
             findimage $T qemux86 ext3 "moblin-image-sdk moblin-image-netbook poky-image-sdk poky-image-sato poky-image-minimal"
         fi
     fi
-    CROSSPATH=$BUILDDIR/tmp/sysroots/$BUILD_SYS/usr
+    CROSSPATH=$TMPDIR/tmp/sysroots/$BUILD_SYS/usr
 fi
 
 if [ "$MACHINE" = "qemuarm" -o "$MACHINE" = "spitz" -o "$MACHINE" = "borzoi" -o "$MACHINE" = "akita" -o "$MACHINE" = "nokia800" ]; then
@@ -182,6 +194,6 @@ if [ ! -e $CROSSPATH/$TARGET_SYS/bin/gcc ]; then
    ln -s $CROSSPATH/bin/$TARGET_SYS-gcc $CROSSPATH/$TARGET_SYS/bin/gcc
 fi
 
-CROSSPATH=$BUILDDIR/tmp/sysroots/$BUILD_SYS/usr/bin:$CROSSPATH:$BUILDDIR/tmp/cross/bin
+CROSSPATH=$TMPDIR/tmp/sysroots/$BUILD_SYS/usr/bin:$CROSSPATH:$TMPDIR/tmp/cross/bin
 
 . $INTERNAL_SCRIPT