[CAS] Add llvm-cas tools to inspect on-disk LLVMCAS #166481
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Created using spr 1.3.7
cachemeifyoucan
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adrian-prantl,
bogner,
ilovepi and
petrhosek
cachemeifyoucan
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petrhosek
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Nov 5, 2025
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| class F<string name> : Flag<["--", "-"], name>; | ||
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| def grp_action : OptionGroup<"Actions">, HelpText<"llvm-cas actions">; |
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Have you considered using subcommands for actions? The subcommand support was introduced in #155026.
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I am aware. But we ship this tool already. I would like to prevent breaking current command-line interface if possible.
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Is it possible to migrate them over the course of a release or two?
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Maybe. I would like to do it incrementally since we need to teach build system about the new command before we can break the old one.
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We should be able to support both syntaxes to avoid breaking existing uses and mark the flag-based versions as deprecated so new users are encouraged to use the subcommand syntax. I'm fine doing it in a follow up change if you prefer.
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@petrhosek I think subcommand is not usable with positional arguments. That is a deal breaker for now to use subcommand parsing.
It would also be nice if a flag can be alias to a subcommand but that is not strictly needed.
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@cachemeifyoucan -- I responded about positional argument handling in the bug. PTAL.
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Ping. Since sub-command parsing needs a bit polish. I think I will update to that in the future. |
petrhosek
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Nov 7, 2025
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/154/builds/23754 Here is the relevant piece of the build log for the reference |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/66/builds/21935 Here is the relevant piece of the build log for the reference |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/23/builds/15355 Here is the relevant piece of the build log for the reference |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/39/builds/8594 Here is the relevant piece of the build log for the reference |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/95/builds/19031 Here is the relevant piece of the build log for the reference |
vinay-deshmukh
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Nov 8, 2025
Add a command-line tool `llvm-cas` to inspect the OnDisk CAS for debugging purpose. It can be used to lookup/update ObjectStore or put/get cache entries from ActionCache, together with other debugging capabilities.
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/201/builds/7000 Here is the relevant piece of the build log for the reference |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/76/builds/13353 Here is the relevant piece of the build log for the reference |
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If I remember correctly, the I think ultimately, as |
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Add a command-line tool
llvm-casto inspect the OnDisk CAS fordebugging purpose. It can be used to lookup/update ObjectStore or
put/get cache entries from ActionCache, together with other debugging
capabilities.