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Fix pre-commit hook issue on Windows #31648

merged 3 commits into from Feb 18, 2020

Fix pre-commit hook issue on Windows #31648

merged 3 commits into from Feb 18, 2020


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teharris1 commented Feb 8, 2020

Proposed change

Update shebang in scripts/ to be comparable with git on Windows per this pre-commit hook issue:
pre-commit/pre-commit#780 (comment)

Someone should definitely test this in *NIX environment before merge.

Type of change

  • Dependency upgrade
  • Bugfix (non-breaking change which fixes an issue)
  • New integration (thank you!)
  • New feature (which adds functionality to an existing integration)
  • Breaking change (fix/feature causing existing functionality to break)
  • Code quality improvements to existing code or addition of tests

Additional information

Pre-commit hook failes on Windows with error:
Executable /bin/sh not found

The proper format of the shebang is:
#!/usr/bin/env sh -eu

  • This PR fixes or closes issue: fixes #
  • This PR is related to issue:
  • Link to documentation pull request:


  • The code change is tested and works locally.
  • Local tests pass. Your PR cannot be merged unless tests pass
  • There is no commented out code in this PR.
  • I have followed the development checklist
  • The code has been formatted using Black (black --fast homeassistant tests)
  • Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

If the code communicates with devices, web services, or third-party tools:

  • The manifest file has all fields filled out correctly.
    Updated and included derived files by running: python3 -m script.hassfest.
  • New or updated dependencies have been added to requirements_all.txt.
    Updated by running python3 -m script.gen_requirements_all.
  • Untested files have been added to .coveragerc.

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teharris1 added 3 commits Feb 8, 2020
@project-bot project-bot bot added this to Needs review in Dev Feb 8, 2020

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teharris1 commented Feb 18, 2020

@scop Can you have a look at this PR? I am having issues with the pre-commit hooks due to an issue with mypy the this script/ script. I think this is a straight forward change but best if you look at it.

@balloob balloob requested a review from scop Feb 18, 2020
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balloob left a comment

Tested locally, works on Mac.

Thanks for the fix.

Dev automation moved this from Needs review to Reviewer approved Feb 18, 2020
@balloob balloob merged commit f6540e3 into home-assistant:dev Feb 18, 2020
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codecov/patch Coverage not affected when comparing e3894d2...9c97e28
codecov/project 94.65% (target 90%)
docs-missing Documentation ok.
Dev automation moved this from Reviewer approved to Done Feb 18, 2020

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scop commented Feb 19, 2020

Interesting. I wonder if other shell scripts are similarly affected. They're not used in pre-commit checks though, but maybe in some other unixy environments on windows.

$ git grep -F /bin/sh

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balloob commented Feb 19, 2020

Probably are.

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@teharris1 teharris1 deleted the teharris1:prehook branch Mar 15, 2020
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