ignore error

    tasks:
    - name: task
      task:
      - func: shell
        flags:
        - ignoreError
        do:
        - echo "step1"
        - echo "step2" |grep notexist
        - echo "step3"
      - func: shell
        flags:
        - ignoreError
        do:
        - echo "step4"
        - echo "step5" |grep notexist
        - echo "step6"
      - func: shell
        do:
        - echo "step7"
        - echo "step8"
        - echo "step9"
    

    loading [Config]:  ./tests/functests/upconfig.yml
    Main config:
                 Version -> 1.0.0
                  RefDir -> ./tests/functests
                 WorkDir -> cwd
              AbsWorkDir -> /up_project/up
                TaskFile -> c0052
                 Verbose -> vvv
              ModuleName -> self
               ShellType -> /bin/sh
           MaxCallLayers -> 8
                 Timeout -> 3600000
     MaxModuelCallLayers -> 256
               EntryTask -> task
      ModRepoUsernameRef -> 
      ModRepoPasswordRef -> 
    work dir: /up_project/up
    -exec task: task
    loading [Task]:  ./tests/functests/c0052
    module: [self], instance id: [dev], exec profile: []
    profile -  envVars:
    
    (*core.Cache)({
    })
    
    Task1: [task ==> task:  ]
    -Step1:
    self: final context exec vars:
    
    (*core.Cache)({
      "up_runtime_task_layer_number": 0
    })
    
    cmd( 1):
    echo "step1"
    
    -
    step1
    
    -
     .. ok
    cmd( 2):
    echo "step2" |grep notexist
    
    -
    
    -
     .. failed(suppressed if it is not the last step)
    cmd( 3):
    echo "step3"
    
    -
    step3
    
    -
     .. ok
    . ok
    -Step2:
    self: final context exec vars:
    
    (*core.Cache)({
      "last_result": (*utils.ExecResult)({
        Cmd: "echo \"step3\"",
        Code: 0,
        Output: "step3",
        ErrMsg: ""
      }),
      "up_runtime_task_layer_number": 0
    })
    
    cmd( 1):
    echo "step4"
    
    -
    step4
    
    -
     .. ok
    cmd( 2):
    echo "step5" |grep notexist
    
    -
    
    -
     .. failed(suppressed if it is not the last step)
    cmd( 3):
    echo "step6"
    
    -
    step6
    
    -
     .. ok
    . ok
    -Step3:
    self: final context exec vars:
    
    (*core.Cache)({
      "up_runtime_task_layer_number": 0,
      "last_result": (*utils.ExecResult)({
        Cmd: "echo \"step6\"",
        Code: 0,
        Output: "step6",
        ErrMsg: ""
      })
    })
    
    cmd( 1):
    echo "step7"
    
    -
    step7
    
    -
     .. ok
    cmd( 2):
    echo "step8"
    
    -
    step8
    
    -
     .. ok
    cmd( 3):
    echo "step9"
    
    -
    step9
    
    -
     .. ok
    . ok