[OE-core] [PATCH 0/2 ] V3 Incremental rpm image generation

[Robert Yang]

Changes of V3:
* Change the name from INC_RPM_IMAGE_GEN to INC_RPM_IMAGE_GEN as Richard
  suggested, and it will only work for rpm based rootfs, the deb and ipk
  will be done in M3.

* Update rootfs_rpm.bbclass since other developer has modified it since
  V2.

Changes of V2:
* Move the config sample from meta-yocto/conf/local.conf.sample to
  meta-yocto/conf/local.conf.sample.extended as Saul suggested.

Testing:
1) Add INC_RPM_IMAGE_GEN = "1" to conf/local.conf
2) $ bitbake core-image-sato

   * Test when remove some pkgs
     a) Save the modify time of file which is in
        tmp/work/qemux86_64-poky-linux/core-image-sato-1.0-r0/rootfs/dev/.
     b) Edit meta/recipes-sato/images/core-image-sato.bb, remove
        ${SATO_IMAGE_FEATURES} from IMAGE_FEATURES.
     c) bitbake core-image-sato

     Result: The project built well, check the modify time of the file
     which is in
     tmp/work/qemux86_64-poky-linux/core-image-sato-1.0-r0/rootfs/dev/,
     They should be the same to step a)'s, which means that these files
     were note newly created.

   * Testh when add some pkgs
     a) Save the modify time of file which is in
        tmp/work/qemux86_64-poky-linux/core-image-sato-1.0-r0/rootfs/dev/.
     b) Edit meta/recipes-sato/images/core-image-sato.bb, add the
        ${SATO_IMAGE_FEATURES} back to IMAGE_FEATURES.
     c) bitbake core-image-sato

     Result: The project built well, check the modify time of the file
     which is in
     tmp/work/qemux86_64-poky-linux/core-image-sato-1.0-r0/rootfs/dev/,
     They should be the same to step a)'s, which means that these files
     were note newly created.

   * Test when edit a pkg
     a) bitbake bzip2 -cclean
     b) rm -f rm -f sstate-cache/sstate-bzip2-*
     c) Edit meta/recipes-extended/bzip2/bzip2_1.0.6.bb
     d) bitbake core-image-sato
     Result: The project built well, and check:
        tmp/work/qemux86-poky-linux/core-image-sato-1.0-r0/temp/log.do_rootfs
     Only the bzip2 has been re-installed



The following changes since commit 468998cddbe1a803096c9b357e1b5daa3b7e8c2e:

  command.py: add parseConfigurationFiles API (2012-01-06 16:01:44 +0000)

are available in the git repository at:
  git://git.pokylinux.org/poky-contrib robert/inc_image_gen
  http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=robert/inc_image_gen

Robert Yang (2):
  Incremental rpm image generation
  Incremental rpm image generation(Add config sample)

 meta-yocto/conf/local.conf.sample.extended |    7 +++
 meta/classes/image.bbclass                 |   11 ++++-
 meta/classes/package_rpm.bbclass           |   73 ++++++++++++++++++++++++----
 meta/classes/rootfs_rpm.bbclass            |    6 ++-
 4 files changed, 84 insertions(+), 13 deletions(-)

-- 
1.7.4.1