Removing unnecessary warning due to generation field

[kapilkd13]

setting generation field after schema validation and removing this generation field from the final output.

closes #382

[kapilkd13]

Output will be something like this

Resolved 'E:\GitHub\gsoc\common-workflow-language\v1.0\v1.0\dir.cwl' to 'file:///E:/GitHub/gsoc/common-workflow-language/v1.0/v1.0/dir.cwl'
We are on Microsoft Windows and not all components of this CWL description have a
container specified. This means that these steps will be executed in the default container,
which is frolvlad/alpine-bash.

Note, this could affect portability if this CWL description relies on non-POSIX features
or commands in this container. For best results add the following to your CWL
description's hints section:

hints:
  DockerRequirement:
    dockerPull: frolvlad/alpine-bash

[job dir.cwl] initializing from file:///E:/GitHub/gsoc/common-workflow-language/v1.0/v1.0/dir.cwl
[job dir.cwl] {
    "indir": {
        "class": "Directory", 
        "location": "file:///e:/GitHub/gsoc/common-workflow-language/v1.0/v1.0/testdir", 
        "basename": "testdir"
    }
}
[job dir.cwl] path mappings is {
    "file:///e:/GitHub/gsoc/common-workflow-language/v1.0/v1.0/testdir/c/d": [
        "E:\\GitHub\\gsoc\\common-workflow-language\\v1.0\\v1.0\\testdir\\c\\d", 
        "/var/lib/cwl/stg3206b963-d87a-4b99-8450-a611fe2f01aa/testdir/c/d", 
        "File", 
        false
    ], 
    "file:///e:/GitHub/gsoc/common-workflow-language/v1.0/v1.0/testdir": [
        "E:\\GitHub\\gsoc\\common-workflow-language\\v1.0\\v1.0\\testdir", 
        "/var/lib/cwl/stg3206b963-d87a-4b99-8450-a611fe2f01aa/testdir", 
        "Directory", 
        true
    ], 
    "file:///e:/GitHub/gsoc/common-workflow-language/v1.0/v1.0/testdir/a": [
        "E:\\GitHub\\gsoc\\common-workflow-language\\v1.0\\v1.0\\testdir\\a", 
        "/var/lib/cwl/stg3206b963-d87a-4b99-8450-a611fe2f01aa/testdir/a", 
        "File", 
        false
    ], 
    "file:///e:/GitHub/gsoc/common-workflow-language/v1.0/v1.0/testdir/b": [
        "E:\\GitHub\\gsoc\\common-workflow-language\\v1.0\\v1.0\\testdir\\b", 
        "/var/lib/cwl/stg3206b963-d87a-4b99-8450-a611fe2f01aa/testdir/b", 
        "File", 
        false
    ], 
    "file:///e:/GitHub/gsoc/common-workflow-language/v1.0/v1.0/testdir/c": [
        "E:\\GitHub\\gsoc\\common-workflow-language\\v1.0\\v1.0\\testdir\\c", 
        "/var/lib/cwl/stg3206b963-d87a-4b99-8450-a611fe2f01aa/testdir/c", 
        "Directory", 
        false
    ]
}
[job dir.cwl] command line bindings is [
    {
        "position": [
            0, 
            0
        ], 
        "datum": "cd"
    }, 
    {
        "position": [
            0, 
            1
        ], 
        "valueFrom": "$(inputs.indir.path)"
    }, 
    {
        "shellQuote": false, 
        "valueFrom": "&&", 
        "position": [
            0, 
            2
        ]
    }, 
    {
        "position": [
            0, 
            3
        ], 
        "datum": "find"
    }, 
    {
        "position": [
            0, 
            4
        ], 
        "datum": "."
    }, 
    {
        "shellQuote": false, 
        "valueFrom": "|", 
        "position": [
            0, 
            5
        ]
    }, 
    {
        "position": [
            0, 
            6
        ], 
        "datum": "sort"
    }
]
[job dir.cwl] c:\users\kapilk~1\appdata\local\temp\tmpdjdafk$ docker \
    run \
    -i \
    --volume=/C/users/kapilk~1/appdata/local/temp/tmpdjdafk:/var/spool/cwl:rw \
    --volume=/C/users/kapilk~1/appdata/local/temp/tmpbipmg2:/tmp:rw \
    --volume=/E/GitHub/gsoc/common-workflow-language/v1.0/v1.0/testdir:/var/lib/cwl/stg3206b963-d87a-4b99-8450-a611fe2f01aa/testdir:ro \
    --workdir=/var/spool/cwl \
    --read-only=true \
    --log-driver=none \
    --user=1000:50 \
    --rm \
    --env=TMPDIR=/tmp \
    --env=HOME=/var/spool/cwl \
    frolvlad/alpine-bash \
    /bin/sh \
    -c \
    'cd' '/var/lib/cwl/stg3206b963-d87a-4b99-8450-a611fe2f01aa/testdir' && 'find' '.' | 'sort' > c:\users\kapilk~1\appdata\local\temp\tmpdjdafk\output.txt
[job dir.cwl] completed success
[job dir.cwl] {
    "outlist": {
        "checksum": "sha1$13cda8661796ae241da3a18668fb552161a72592", 
        "basename": "output.txt", 
        "nameext": ".txt", 
        "nameroot": "output", 
        "http://commonwl.org/cwltool#generation": 0, 
        "location": "file:///C:/users/kapilk%7E1/appdata/local/temp/tmpdjdafk/output.txt", 
        "class": "File", 
        "size": 20
    }
}
[job dir.cwl] Removing input staging directory c:\users\kapilk~1\appdata\local\temp\tmplkjnub
[job dir.cwl] Removing temporary directory c:\users\kapilk~1\appdata\local\temp\tmpbipmg2
Copying C:\users\kapilk~1\appdata\local\temp\tmpdjdafk\output.txt to E:/GitHub/gsoc/cwltool/output.txt
Final process status is success
{
    "outlist": {
        "checksum": "sha1$13cda8661796ae241da3a18668fb552161a72592", 
        "basename": "output.txt", 
        "nameext": ".txt", 
        "nameroot": "output", 
        "location": "file:///E://GitHub/gsoc/cwltool/output.txt", 
        "path": "E:\\GitHub\\gsoc\\cwltool\\output.txt", 
        "class": "File", 
        "size": 20
    }
}

Process finished with exit code 0

[mr-c]

LGTM, I'd like @tetron to verify this

[tetron]

I think you want ("File",) to make it a 1-item tuple.

[tetron]

Looks good.