diff mercurial/commands.py @ 37437:814e080a1215

commands: document the layering violation in `manifest --all`

This commit fixes the last test failures when using the simple
store extension!

It turns out that `hg manifest --all` locks the repo and scans for
revlogs. This feature was added by 71938479eff9 in 2011. I am
debating changing the behavior. But that can occur in another
commit.

As part of debugging this, I realized that test-manifest.t is the
only meaningful tester of `hg manifest --all` and that test was
improperly disabled when bundlerepos aren't supported. The test is
testing manifest behavior, not whether you can `hg pull` from a
bundle. So I changed the test to `hg unbundle` instead.

FWIW, I wasted a non-trivial amount of time tracking down this
failure. I thought the issue involved Git, which is why I refactored
the test to be more deterministic. Never in my mind would I have
guessed that code in `hg manifest` would scan revlogs. I should have
looked there to begin with. Doh.

Differential Revision: https://phab.mercurial-scm.org/D3118

--- a/mercurial/commands.py	Wed Apr 04 19:17:22 2018 -0700
+++ b/mercurial/commands.py	Wed Apr 04 21:09:47 2018 -0700
@@ -3492,6 +3492,8 @@
             raise error.Abort(_("can't specify a revision with --all"))
 
         res = []
+        # TODO this is a massive layering violation. It assumes the repo is
+        # backed by revlogs with a well-defined naming scheme.
         prefix = "data/"
         suffix = ".i"
         plen = len(prefix)