我有两个带有Yocto meta数据的分支，它们构建的图像略有不同（其中一个图像安装了更多的包，有助于开发代码）。
目前，两个分支都在同一个构建目录中构建映像。我希望每个分支都有自己的构建目录和元数据，比如sstate-cache......如何实现？

trigger:
- development-image

variables:
  IMAGE_NAME: texas-image
  IMAGE_FILE: texas-image.rootfs.wic.xz  
  META_LAYERS: yocto-meta-layers
  YOCTO_RELEASE: kirkstone
  YOCTO_SOURCES: yocto-linux
  YOCTO_BUILD_DIR: build
  
  FIT_IMAGE_DIR: tools/tftp_u-boot
  FIT_IMAGE_NAME: puma

  BOOT_OVER_ETH: boot-over-eth
  IMAGE_FILE_BOOT_OVER_ETH: texas-image.rootfs.cpio.gz
  IMAGE_DEVICE_TREE_EVM_BOARD: k3-am642-evm.dtb
  IMAGE_DEVICE_TREE_SK_BOARD: k3-am642-sk.dtb
  BOOTLOADER_IMAGE_BOOT_OVER_ETH: u-boot.img
  TIBOOT3_BINARY_BOOT_OVER_ETH: tiboot3.bin
  TISPL_BINARY_BOOT_OVER_ETH: tispl.bin
  KERNEL_IMAGE_BOOT_OVER_ETH: Image
  
pool:
  #vmImage: ubuntu-latest
  name: Etteplan

stages:
 - stage: SetupYoctoEnv
   jobs:
    - job: DownloadResources
      displayName: 'Downloading resources and dependencies'
      #workspace:
      #clean: $(IMAGE_DIR)
      steps:
       - bash: |
            echo $(Build.ArtifactStagingDirectory)
            echo $(Build.SourcesDirectory)
            echo $(Build.BinariesDirectory)
            echo $(Common.TestResultsDirectory)
            
       - checkout: self # self represents the repo where the initial Pipelines YAML file was found  clean: true
         clean: false
         path: $(YOCTO_SOURCES)

       #- task: DeleteFiles@1
       #  displayName: "Removing tmp directory"
       #  inputs:
       #     SourceFolder: $(YOCTO_BUILD_DIR)/tmp
       #     Contents: '*'
       #     RemoveSourceFolder: true

       - bash: |
            echo Creating directory structure
            ls -l
            mkdir -p ${META_LAYERS}
            mkdir -p ${BOOT_OVER_ETH}

       - bash: |
            echo Fetching Yocto meta layers
            pwd
            if [[ ! -d poky ]]; then git clone -b ${YOCTO_RELEASE} git://git.yoctoproject.org/poky.git; fi
            if [[ ! -d meta-openembedded ]]; then git clone -b ${YOCTO_RELEASE} git://git.openembedded.org/meta-openembedded; fi
            if [[ ! -d meta-ti ]]; then git clone -b ${YOCTO_RELEASE} git://git.yoctoproject.org/meta-ti; fi
            if [[ ! -d meta-arm ]]; then git clone -b ${YOCTO_RELEASE} https://git.yoctoproject.org/meta-arm/; fi
         workingDirectory: $(META_LAYERS)
      
    - job: PrepareEnv
      displayName: 'Preparing Environment'
      dependsOn: 'DownloadResources'
      steps:
       - checkout: none
         clean: false
         path: $(YOCTO_SOURCES)
       - bash: |
            echo Initializing Yocto build environment
            source ${META_LAYERS}/poky/oe-init-build-env
            echo "Adding layers to bblayers.conf"
            pwd
            if ! grep -q meta-oe conf/bblayers.conf; then  bitbake-layers add-layer ../${META_LAYERS}/meta-openembedded/meta-oe; fi
            if ! grep -q meta-python conf/bblayers.conf; then  bitbake-layers add-layer ../${META_LAYERS}/meta-openembedded/meta-python; fi
            if ! grep -q meta-networking conf/bblayers.conf; then bitbake-layers add-layer ../${META_LAYERS}/meta-openembedded/meta-networking; fi
            if ! grep -q meta-arm-toolchain conf/bblayers.conf; then bitbake-layers add-layer ../${META_LAYERS}/meta-arm/meta-arm-toolchain; fi
            if ! grep -q meta-arm conf/bblayers.conf; then bitbake-layers add-layer ../${META_LAYERS}/meta-arm/meta-arm; fi
            if ! grep -q meta-ti-bsp conf/bblayers.conf; then bitbake-layers add-layer ../${META_LAYERS}/meta-ti/meta-ti-bsp; fi
            if ! grep -q meta-ti-extras conf/bblayers.conf; then bitbake-layers add-layer ../${META_LAYERS}/meta-ti/meta-ti-extras; fi
            if ! grep -q meta-rt conf/bblayers.conf; then bitbake-layers add-layer ../${META_LAYERS}/../meta-rt; fi
         
 - stage: BuildImage
   dependsOn: 
    - SetupYoctoEnv
   jobs:
    - job: BuildImage
      displayName: 'Building Yocto image'
      timeoutInMinutes: 300
      steps:
       - checkout: none
         clean: false
         path: $(YOCTO_SOURCES)
       - bash: |  
           source ${META_LAYERS}/poky/oe-init-build-env
           bitbake ${IMAGE_NAME}

    - job: BuildFitImage
      displayName: 'Building Fit Image'
      dependsOn: 'BuildImage'
      steps:
       - checkout: none
         clean: false
         path: $(YOCTO_SOURCES)

       - bash: |
            ln -s ../../$(YOCTO_BUILD_DIR)/tmp/deploy/images/am64xx-evm bin
            ls -l bin
            mkimage -f ${FIT_IMAGE_NAME}.its ${FIT_IMAGE_NAME}.itb
         workingDirectory: $(FIT_IMAGE_DIR)

 - stage: Publish
   dependsOn: 
    - BuildImage
   jobs:
     - job: PublishImage
       displayName: 'Publish Image'
       steps:
        - checkout: none

        - task: CopyFiles@2
          displayName: 'Collecting files boot over ethernet'
          inputs:
             sourceFolder: '$(YOCTO_BUILD_DIR)/tmp/deploy/images/am64xx-evm'
             contents: |
                  $(IMAGE_FILE_BOOT_OVER_ETH)
                  $(IMAGE_DEVICE_TREE_EVM_BOARD)
                  $(IMAGE_DEVICE_TREE_SK_BOARD)
                  $(BOOTLOADER_IMAGE_BOOT_OVER_ETH)
                  $(TIBOOT3_BINARY_BOOT_OVER_ETH)
                  $(TIBOOT3_BINARY_BOOT_OVER_ETH)
                  $(TISPL_BINARY_BOOT_OVER_ETH)
                  $(KERNEL_IMAGE_BOOT_OVER_ETH)
             overWrite: true
             targetFolder: '$(BOOT_OVER_ETH)'
          
        - task: ArchiveFiles@2
          inputs:
             rootFolderOrFile: $(BOOT_OVER_ETH)
             archiveType: 'zip'
             archiveFile: $(BOOT_OVER_ETH).zip
             replaceExistingArchive: true
             verbose: true
              
        
        - task: PublishPipelineArtifact@1
          inputs:
             targetPath: $(BOOT_OVER_ETH).zip
             artifactType: 'pipeline'
             artifactName: $(BOOT_OVER_ETH)

        - task: PublishPipelineArtifact@1
          inputs:
             targetPath: $(YOCTO_BUILD_DIR)/tmp/deploy/images/am64xx-evm/$(IMAGE_FILE)
             artifactType: 'pipeline'
             artifactName: $(IMAGE_NAME)

        - task: PublishPipelineArtifact@1
          inputs:
             targetPath: $(FIT_IMAGE_DIR)/$(FIT_IMAGE_NAME).itb
             artifactType: 'pipeline'
             artifactName: fit-image-$(FIT_IMAGE_NAME)

感谢您的帮助：）