Fix DTD prototype dataset on Windows

[pmeier]

This is the second time we are alerted by the torchdata folks that something broke, but without our CI is picking up on it. Both times it was related to Windows and we didn't notice, because we only run the prototype tests on a Linux machine.

I'm wondering if we should switch to a Windows machine for prototype tests in CI given that AFAIK no one of us is developing on Windows. Thoughts @datumbox @NicolasHug ?

cc @pmeier @bjuncek

[facebook-github-bot]

💊 CI failures summary and remediations

As of commit 3159f66 (more details on the Dr. CI page):

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• 2/2 failures introduced in this PR

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🕵️ 1 new failure recognized by patterns

The following CI failures do not appear to be due to upstream breakages:

CodeQL / build (1/1)

Step: "Build TorchVision" (full log | diagnosis details | 🔁 rerun)

2022-01-31T17:01:16.1616459Z ##[error]Process completed with exit code 1.

2022-01-31T17:01:16.0010808Z     self.finalize_options()
2022-01-31T17:01:16.0011288Z   File "/home/runner/.local/lib/python3.8/site-packages/setuptools/command/develop.py", line 52, in finalize_options
2022-01-31T17:01:16.0011776Z     easy_install.finalize_options(self)
2022-01-31T17:01:16.0012644Z   File "/home/runner/.local/lib/python3.8/site-packages/setuptools/command/easy_install.py", line 276, in finalize_options
2022-01-31T17:01:16.0013022Z     self._fix_install_dir_for_user_site()
2022-01-31T17:01:16.0013560Z   File "/home/runner/.local/lib/python3.8/site-packages/setuptools/command/easy_install.py", line 382, in _fix_install_dir_for_user_site
2022-01-31T17:01:16.0013933Z     self.create_home_path()
2022-01-31T17:01:16.0014676Z   File "/home/runner/.local/lib/python3.8/site-packages/setuptools/command/easy_install.py", line 1338, in create_home_path
2022-01-31T17:01:16.0015069Z     if path.startswith(home) and not os.path.isdir(path):
2022-01-31T17:01:16.0015489Z AttributeError: 'int' object has no attribute 'startswith'
2022-01-31T17:01:16.1616459Z ##[error]Process completed with exit code 1.
2022-01-31T17:01:16.1673198Z Post job cleanup.
2022-01-31T17:01:16.3166077Z [command]/usr/bin/git version
2022-01-31T17:01:16.3228584Z git version 2.34.1
2022-01-31T17:01:16.3279658Z [command]/usr/bin/git config --local --name-only --get-regexp core\.sshCommand
2022-01-31T17:01:16.3338330Z [command]/usr/bin/git submodule foreach --recursive git config --local --name-only --get-regexp 'core\.sshCommand' && git config --local --unset-all 'core.sshCommand' || :
2022-01-31T17:01:16.3762140Z [command]/usr/bin/git config --local --name-only --get-regexp http\.https\:\/\/github\.com\/\.extraheader
2022-01-31T17:01:16.3814274Z http.https://github.com/.extraheader
2022-01-31T17:01:16.3829279Z [command]/usr/bin/git config --local --unset-all http.https://github.com/.extraheader
2022-01-31T17:01:16.3892289Z [command]/usr/bin/git submodule foreach --recursive git config --local --name-only --get-regexp 'http\.https\:\/\/github\.com\/\.extraheader' && git config --local --unset-all 'http.https://github.com/.extraheader' || :
2022-01-31T17:01:16.4547416Z Cleaning up orphan processes

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1 failure not recognized by patterns:

Job	Step	Action
cmake_macos_cpu	curl -o conda.sh https://repo.anaconda.com/miniconda/Miniconda3-latest-MacOSX-x86_64.sh
sh conda.sh -b
source $HOME/miniconda3/bin/activate
conda install -yq conda-build cmake
packaging/build_cmake.sh
	🔁 rerun

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[pmeier]

Turns out, this is actually an issue in torchdata with properly stripping the newline characters: pytorch/data#173.

[pmeier]

With my fix in pytorch/data#174, we do not need to care about the line endings while generating or reading the files. Thus, this PR only fixes the mock data generation of DTD.

[NicolasHug]

Thanks @pmeier