commands: add value for cmdtype argument for read only commands

commands: add value for cmdtype argument for read only commands

In the previous release we added an argument `cmdtype` to registrar.command()
which is a enum and tells whether the command is read only, recoverable write or
unrecoverable write command. This patch add the value of cmdtype argument for
commands which are read only.

Differential Revision: https://phab.mercurial-scm.org/D1468

--- a/mercurial/commands.py	Wed Nov 15 21:07:30 2017 -0800
+++ b/mercurial/commands.py	Tue Nov 21 04:37:51 2017 +0530
@@ -65,6 +65,7 @@
 table.update(debugcommandsmod.command._table)
 
 command = registrar.command(table)
+readonly = registrar.command.readonly
 
 # common command options
 
@@ -1060,7 +1061,7 @@
       _('show only branches that have unmerged heads (DEPRECATED)')),
      ('c', 'closed', False, _('show normal and closed branches')),
     ] + formatteropts,
-    _('[-c]'))
+    _('[-c]'), cmdtype=readonly)
 def branches(ui, repo, active=False, closed=False, **opts):
     """list repository named branches
 
@@ -1254,7 +1255,7 @@
     ('', 'decode', None, _('apply any matching decode filter')),
     ] + walkopts + formatteropts,
     _('[OPTION]... FILE...'),
-    inferrepo=True)
+    inferrepo=True, cmdtype=readonly)
 def cat(ui, repo, file1, *pats, **opts):
     """output the current or given revision of files
 
@@ -1600,7 +1601,7 @@
      ('l', 'local', None, _('edit repository config')),
      ('g', 'global', None, _('edit global config'))] + formatteropts,
     _('[-u] [NAME]...'),
-    optionalrepo=True)
+    optionalrepo=True, cmdtype=readonly)
 def config(ui, repo, *values, **opts):
     """show combined config settings from all hgrc files
 
@@ -1773,7 +1774,7 @@
     ('c', 'change', '', _('change made by revision'), _('REV'))
     ] + diffopts + diffopts2 + walkopts + subrepoopts,
     _('[OPTION]... ([-c REV] | [-r REV1 [-r REV2]]) [FILE]...'),
-    inferrepo=True)
+    inferrepo=True, cmdtype=readonly)
 def diff(ui, repo, *pats, **opts):
     """diff repository (or selected files)
 
@@ -1863,7 +1864,7 @@
     ('', 'switch-parent', None, _('diff against the second parent')),
     ('r', 'rev', [], _('revisions to export'), _('REV')),
     ] + diffopts,
-    _('[OPTION]... [-o OUTFILESPEC] [-r] [REV]...'))
+    _('[OPTION]... [-o OUTFILESPEC] [-r] [REV]...'), cmdtype=readonly)
 def export(ui, repo, *changesets, **opts):
     """dump the header and diffs for one or more changesets
 
@@ -1944,7 +1945,7 @@
     [('r', 'rev', '', _('search the repository as it is in REV'), _('REV')),
      ('0', 'print0', None, _('end filenames with NUL, for use with xargs')),
     ] + walkopts + formatteropts + subrepoopts,
-    _('[OPTION]... [FILE]...'))
+    _('[OPTION]... [FILE]...'), cmdtype=readonly)
 def files(ui, repo, *pats, **opts):
     """list tracked files
 
@@ -2317,7 +2318,7 @@
     ('d', 'date', None, _('list the date (short with -q)')),
     ] + formatteropts + walkopts,
     _('[OPTION]... PATTERN [FILE]...'),
-    inferrepo=True)
+    inferrepo=True, cmdtype=readonly)
 def grep(ui, repo, pattern, *pats, **opts):
     """search revision history for a pattern in specified files
 
@@ -2560,7 +2561,7 @@
     ('a', 'active', False, _('show active branchheads only (DEPRECATED)')),
     ('c', 'closed', False, _('show normal and closed branch heads')),
     ] + templateopts,
-    _('[-ct] [-r STARTREV] [REV]...'))
+    _('[-ct] [-r STARTREV] [REV]...'), cmdtype=readonly)
 def heads(ui, repo, *branchrevs, **opts):
     """show branch heads
 
@@ -2633,7 +2634,7 @@
      ('s', 'system', [], _('show help for specific platform(s)')),
      ],
     _('[-ecks] [TOPIC]'),
-    norepo=True)
+    norepo=True, cmdtype=readonly)
 def help_(ui, name=None, **opts):
     """show help for a given topic or a help overview
 
@@ -2675,7 +2676,7 @@
     ('B', 'bookmarks', None, _('show bookmarks')),
     ] + remoteopts + formatteropts,
     _('[-nibtB] [-r REV] [SOURCE]'),
-    optionalrepo=True)
+    optionalrepo=True, cmdtype=readonly)
 def identify(ui, repo, source=None, rev=None,
              num=None, id=None, branch=None, tags=None, bookmarks=None, **opts):
     """identify the working directory or specified revision
@@ -3249,7 +3250,7 @@
      _('do not display revision or any of its ancestors'), _('REV')),
     ] + logopts + walkopts,
     _('[OPTION]... [FILE]'),
-    inferrepo=True)
+    inferrepo=True, cmdtype=readonly)
 def log(ui, repo, *pats, **opts):
     """show revision history of entire repository or files
 
@@ -3457,7 +3458,7 @@
     [('r', 'rev', '', _('revision to display'), _('REV')),
      ('', 'all', False, _("list files from all revisions"))]
          + formatteropts,
-    _('[-r REV]'))
+    _('[-r REV]'), cmdtype=readonly)
 def manifest(ui, repo, node=None, rev=None, **opts):
     """output the current or given revision of the project manifest
 
@@ -3721,7 +3722,8 @@
             displayer.show(repo[n])
     displayer.close()
 
-@command('paths', formatteropts, _('[NAME]'), optionalrepo=True)
+@command('paths', formatteropts, _('[NAME]'), optionalrepo=True,
+    cmdtype=readonly)
 def paths(ui, repo, search=None, **opts):
     """show aliases for remote repositories
 
@@ -4648,7 +4650,7 @@
     return repo.rollback(dryrun=opts.get(r'dry_run'),
                          force=opts.get(r'force'))
 
-@command('root', [])
+@command('root', [], cmdtype=readonly)
 def root(ui, repo):
     """print the root (top) of the current working directory
 
@@ -4742,7 +4744,7 @@
     ('', 'change', '', _('list the changed files of a revision'), _('REV')),
     ] + walkopts + subrepoopts + formatteropts,
     _('[OPTION]... [FILE]...'),
-    inferrepo=True)
+    inferrepo=True, cmdtype=readonly)
 def status(ui, repo, *pats, **opts):
     """show changed files in the working directory
 
@@ -4907,7 +4909,8 @@
     fm.end()
 
 @command('^summary|sum',
-    [('', 'remote', None, _('check for push and pull'))], '[--remote]')
+    [('', 'remote', None, _('check for push and pull'))],
+    '[--remote]', cmdtype=readonly)
 def summary(ui, repo, **opts):
     """summarize working directory state
 
@@ -5308,7 +5311,7 @@
     finally:
         release(lock, wlock)
 
-@command('tags', formatteropts, '')
+@command('tags', formatteropts, '', cmdtype=readonly)
 def tags(ui, repo, **opts):
     """list repository tags
 
@@ -5531,7 +5534,7 @@
     """
     return hg.verify(repo)
 
-@command('version', [] + formatteropts, norepo=True)
+@command('version', [] + formatteropts, norepo=True, cmdtype=readonly)
 def version_(ui, **opts):
     """output version and copyright information"""
     opts = pycompat.byteskwargs(opts)