commands: add admin namespace

In order to stop abusing the 'debug' namespace for non-debug command,
it adds a new 'admin' namespace dedicated to 'admin' operations on a
repository (i.e commands suitable for administration tasks).

This namespace entry would be used to migrate in the future some
existing commands from the 'debug' namespace, or other top level
commands that may not be directly exposed to end users.
(verify command is a perfect candidate for this case)

mercurial/admin_commands.py

@@ -0,0 +1,11 b''
+# admin_commands.py - command processing for admin* commands
+#
+# Copyright 2022 Mercurial Developers
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2 or any later version.
+
+from . import registrar
+
+table = {}
+command = registrar.command(table)

mercurial/commands.py

@@ -19,6 +19,7 b' from .node import ('
     wdirrev,
 )
 from . import (
+    admin_commands as admin_commands_mod,
     archival,
     bookmarks,
     bundle2,
@@ -75,6 +76,7 b' from .utils import ('
 
 table = {}
 table.update(debugcommandsmod.command._table)
+table.update(admin_commands_mod.command._table)
 
 command = registrar.command(table)
 INTENT_READONLY = registrar.INTENT_READONLY

setup.py

@@ -1309,6 +1309,7 b' if py2exehacked:'
 
 packages = [
     'mercurial',
+    'mercurial.admin',
     'mercurial.cext',
     'mercurial.cffi',
     'mercurial.defaultrc',

tests/test-alias.t

@@ -68,17 +68,17 b' basic'
 help
 
   $ hg help -c | grep myinit
-   myinit       This is my documented alias for init.
+   myinit        This is my documented alias for init.
   $ hg help -c | grep mycommit
-   mycommit     This is my alias with only doc.
+   mycommit      This is my alias with only doc.
   $ hg help -c | grep cleanstatus
   [1]
   $ hg help -c | grep lognull
-   lognull      Logs the null rev
+   lognull       Logs the null rev
   $ hg help -c | grep dln
   [1]
   $ hg help -c | grep recursivedoc
-   recursivedoc Logs the null rev in debug mode
+   recursivedoc  Logs the null rev in debug mode
   $ hg help myinit
   hg myinit [OPTIONS] [BLA] [BLE]
   
@@ -603,7 +603,7 b' command provided extension, should be ab'
 help for a shell alias
 
   $ hg help -c | grep rebate
-   rebate       This is my alias which just prints something.
+   rebate        This is my alias which just prints something.
   $ hg help rebate
   hg rebate [MYARGS]