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verify: allow suppressing warnings about extra files...
verify: allow suppressing warnings about extra files The verifier issues warnings when the set of files in .hg/store doesn't align with the set of files that are advertised via repo.file(f).files() for all files seen in ctx.files() changelog traversal. This logic is reasonable for a default implementation. But some stores may have extra files whose presence is harmless. Or those stores may not have the same transaction rollback semantics that unlink files as other stores. This commit adds support for disabling the warning for orphaned files. The simple store extension has been taught to set this flag. Differential Revision: https://phab.mercurial-scm.org/D3097
Augie Fackler - - Load All Authors

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censor.txt
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The censor system allows retroactively removing content from
files. Actually censoring a node requires using the censor extension,
but the functionality for handling censored nodes is partially in core.
Censored nodes in a filelog have the flag ``REVIDX_ISCENSORED`` set,
and the contents of the censored node are replaced with a censor
tombstone. For historical reasons, the tombstone is packed in the
filelog metadata field ``censored``. This allows censored nodes to be
(mostly) safely transmitted through old formats like changegroup
versions 1 and 2. When using changegroup formats older than 3, the
receiver is required to re-add the ``REVIDX_ISCENSORED`` flag when
storing the revision. This depends on the ``censored`` metadata key
never being used for anything other than censoring revisions, which is
true as of January 2017. Note that the revlog flag is the
authoritative marker of a censored node: the tombstone should only be
consulted when looking for a reason a node was censored or when revlog
flags are unavailable as mentioned above.
The tombstone data is a free-form string. It's expected that users of
censor will want to record the reason for censoring a node in the
tombstone. Censored nodes must be able to fit in the size of the
content being censored.