Merge lp:~asac/linaro-android-build-tools/mkdir-out-in-repo-sync-from-seed into lp:linaro-android-build-tools

[Alexander Sack]

if you set RAMDISK_SIZE=0 you end up with no build/out dir created;

in turn repo-sync-from-seed () -> cp .repo/manifest.xml out/source-manifest.xml fails like:

repo initialized in /mnt/jenkins/workspace/linaro-android_galaxynexus-jb-gcc47-aosp-blob/build
+ cp .repo/manifest.xml out/source-manifest.xml
cp: cannot create regular file `out/source-manifest.xml': No such file or directory
++ infrastructure_error
++ echo 'Caught infrastructure error - finishing build with '\''Not Built'\'' status'
Caught infrastructure error - finishing build with 'Not Built' status
++ exit 123
Build step 'Execute shell and set build status' changed build result to NOT_BUILT
Build step 'Execute shell and set build status' marked build as failure

creating the out/ directory (just like in the -from-mirror variant helper) fixes this.

[Alexander Sack (asac)]

i merged this now as i wanted to make progress on the current android build system problems with JB (see lp:1030883).

=== modified file 'build-scripts/helpers'
--- build-scripts/helpers	2012-05-21 08:10:01 +0000
+++ build-scripts/helpers	2012-07-30 21:29:20 +0000
@@ -45,6 +45,7 @@
     setup-repo-vars
     time curl --silent --show-error "$REPO_SEED_URL" | gzip -d -c | tar x
     repo init $REPO_QUIET -u "${MANIFEST_REPO}" -b "${MANIFEST_BRANCH}" -m "${MANIFEST_FILENAME}" $REPO_MIRROR --reference=$PWD/$(basename $REPO_SEED_URL .tar.gz)
+    mkdir -p out
     cp .repo/manifest.xml out/source-manifest.xml
     time repo sync $REPO_QUIET -j$SYNC_JOBS
     repo manifest -r -o out/pinned-manifest.xml