cli/command/image: build: remove permissions warning on Windows #6432
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This warning was added in [moby@4a8b3ca] to print a warning when building Linux images from a Windows client. Window's filesystem does not have an "executable" bit, which mean that, for example, copying a shell script to an image during build would lose the executable bit. So for Windows clients, the executable bit would be set on all files, unconditionally. Originally this was detected in the client, which had direct access to the API response headers, but when refactoring the client to use a common library in [moby@535c4c9], this was refactored into a `ImageBuildResponse` wrapper, deconstructing the API response into an `io.Reader` and a string field containing only the `OSType` header. This was the only use and only purpose of the `OSType` field, and now that BuildKit is the default builder for Linux images, this warning didn't get printed unless BuildKit was explicitly disabled. This patch removes the warning, so that we can potentially remove the field, or the `ImageBuildResponse` type altogether. [moby@4a8b3ca]: moby/moby@4a8b3ca [moby@535c4c9]: moby/moby@535c4c9 Signed-off-by: Sebastiaan van Stijn <[email protected]>
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austinvazquez
approved these changes
Sep 5, 2025
This was referenced Sep 17, 2025
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relates to:
This warning was added in moby@4a8b3ca to print a warning when building Linux images from a Windows client. Window's filesystem does not have an "executable" bit, which mean that, for example, copying a shell script to an image during build would lose the executable bit. So for Windows clients, the executable bit would be set on all files, unconditionally.
Originally this was detected in the client, which had direct access to the API response headers, but when refactoring the client to use a common library in moby@535c4c9, this was refactored into a
ImageBuildResponsewrapper, deconstructing the API response into anio.Readerand a string field containing only theOSTypeheader.This was the only use and only purpose of the
OSTypefield, and now that BuildKit is the default builder for Linux images, this warning didn't get printed unless BuildKit was explicitly disabled.This patch removes the warning, so that we can potentially remove the field, or the
ImageBuildResponsetype altogether.- Human readable description for the release notes
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