image: Add convert command
#4983
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cli/command/image/convert.go
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| args.Src = posArgs[0] | ||
| args.Dst = posArgs[1] |
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Change into flag arguments.
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Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## master #4983 +/- ##
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- Coverage 61.34% 61.23% -0.11%
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Files 295 296 +1
Lines 20712 20751 +39
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+ Hits 12705 12707 +2
- Misses 7104 7142 +38
+ Partials 903 902 -1 |
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Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>
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| flags.BoolVar(&args.NoAttestations, "no-attestations", false, "Do not include image attestations") | ||
| flags.BoolVar(&args.OnlyAvailablePlatforms, "available", false, "Only include platforms locally available to the daemon") | ||
| flags.StringArrayVar(&args.Dst, "to", nil, "Target image references") | ||
| flags.StringVar(&args.Src, "from", "", "Source image reference") |
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nerdctl already has nerdctl image convert SRC DST with a different purpose (akin to ctr images convert) :
https://github.com/containerd/nerdctl/blob/main/docs/command-reference.md#nerd_face-nerdctl-image-convert
Would it be possible to adopt the same syntax as nerdctl image convert SRC DST, or change the command name to avoid conflict?
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I think in general, the purpose is the same. Unfortunately I don't have any better idea for a name... Do you have any suggestions?
We deliberately chose the src and dst to be flag arguments instead of positional arguments as it gives more clarity, especially when multiple destinations might be specified.
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I don't think we should change our syntax (esp. since we settled on this one as the most user-friendly/better option) just for compatibility's sake.
Unless there's a more explicit/as clear name, I also don't think we should change the name to avoid "colliding" with nerdctls command, although I do understand the possible confusion if we have two commands with the same name/subcommand and different syntax.
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We deliberately chose the src and dst to be flag arguments instead of positional arguments as it gives more clarity, especially when multiple destinations might be specified.
What about making it (docker|nerdctl) image convert SRC DST1 DST2 DST3, or (docker|nerdctl) image convert SRC DST1,DST2,DST3?
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| flags := cmd.Flags() | ||
| flags.StringArrayVar(&args.Platforms, "platforms", nil, "Include only the specified platforms in the destination image") |
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This is named "platform" rather than "platforms" in nerdctl and ctr
Add
docker image convertcommand- Description for the changelog