On 11/06/2016 05:40 AM, Gregory Szorc wrote:
# HG changeset patch
# User Gregory Szorc <gregory.sz...@gmail.com>
# Date 1478391613 25200
# Sat Nov 05 17:20:13 2016 -0700
# Node ID 9daec9c7adabe8c84cf2c01fc938e010ee4884d6
# Parent ed3241d8b00e476818ff1aec3db0136bf960de35
commands: 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 patch 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 patches.
I had a similar series in progress which a slightly different
naming/behavior.
* 'hg debugformat' list details about the current repository format (and
possible upgrade)
* 'hg debugformat --upgrade' performs actual upgrade (more on this in
the next patch)
I'm not saying you should restart your whole series to match this, but
I'll most probably submit a rename proposal to match the above once this
is in.
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
Since the first bits or your series are in, you should consider adding
the command to the "mercurial/debugcommands.py" ;-)
@@ -3747,6 +3747,17 @@ def debugtemplate(ui, repo, tmpl, **opts
displayer.show(repo[r], **props)
displayer.close()
+@command('debugupgraderepo', dryrunopts)
+def debugupgraderepo(ui, repo, **opts):
+ """upgrade a repository to use different features
+
+ During the upgrade, the repository will be locked and no writes will be
+ allowed.
+
+ At times during the upgrade, the repository may not be readable.
+ """
+ raise error.Abort(_('not yet implemented'))
+
@command('debugwalk', walkopts, _('[OPTION]... [FILE]...'), inferrepo=True)
def debugwalk(ui, repo, *pats, **opts):
"""show how files match on given patterns"""
diff --git a/tests/test-completion.t b/tests/test-completion.t
--- a/tests/test-completion.t
+++ b/tests/test-completion.t
@@ -109,6 +109,7 @@ Show debug commands if there are no othe
debugsub
debugsuccessorssets
debugtemplate
+ debugupgraderepo
debugwalk
debugwireargs
@@ -274,6 +275,7 @@ Show all commands + options
debugsub: rev
debugsuccessorssets:
debugtemplate: rev, define
+ debugupgraderepo: dry-run
debugwalk: include, exclude
debugwireargs: three, four, five, ssh, remotecmd, insecure
files: rev, print0, include, exclude, template, subrepos
diff --git a/tests/test-help.t b/tests/test-help.t
--- a/tests/test-help.t
+++ b/tests/test-help.t
@@ -917,6 +917,8 @@ Test list of internal help commands
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)
diff --git a/tests/test-upgrade-repo.t b/tests/test-upgrade-repo.t
new file mode 100644
--- /dev/null
+++ b/tests/test-upgrade-repo.t
@@ -0,0 +1,5 @@
+ $ hg init empty
+ $ cd empty
+ $ hg debugupgraderepo
+ abort: not yet implemented
+ [255]
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--
Pierre-Yves David
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