diff tests/test-help.t @ 30774:eaa5607132a2

debugcommands: stub for debugupgraderepo command

Currently, if Mercurial introduces a new repository/store feature or
changes behavior of an existing feature, users must perform an
`hg clone` to create a new repository with hopefully the
correct/optimal settings. Unfortunately, even `hg clone` may not
give the correct results. For example, if you do a local `hg clone`,
you may get hardlinks to revlog files that inherit the old state.
If you `hg clone` from a remote or `hg clone --pull`, changegroup
application may bypass some optimization, such as converting to
generaldelta.

Optimizing a repository is harder than it seems and requires more
than a simple `hg` command invocation.

This commit starts the process of changing that. We introduce
`hg debugupgraderepo`, a command that performs an in-place upgrade
of a repository to use new, optimal features. The command is just
a stub right now. Features will be added in subsequent commits.

This commit does foreshadow some of the behavior of the new command,
notably that it doesn't do anything by default and that it takes
arguments that influence what actions it performs. These will be
explained more in subsequent commits.

--- a/tests/test-help.t	Wed Jan 11 21:47:19 2017 -0500
+++ b/tests/test-help.t	Thu Nov 24 16:24:09 2016 -0800
@@ -910,6 +910,8 @@
                  show set of successors for revision
    debugtemplate
                  parse and apply a template
+   debugupgraderepo
+                 upgrade a repository to use different features
    debugwalk     show how files match on given patterns
    debugwireargs
                  (no help text available)