|
|
# show.py - Extension implementing `hg show`
|
|
|
#
|
|
|
# Copyright 2017 Gregory Szorc <gregory.szorc@gmail.com>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
|
|
|
"""unified command to show various repository information (EXPERIMENTAL)
|
|
|
|
|
|
This extension provides the :hg:`show` command, which provides a central
|
|
|
command for displaying commonly-accessed repository data and views of that
|
|
|
data.
|
|
|
|
|
|
The following config options can influence operation.
|
|
|
|
|
|
``commands``
|
|
|
------------
|
|
|
|
|
|
``show.aliasprefix``
|
|
|
List of strings that will register aliases for views. e.g. ``s`` will
|
|
|
effectively set config options ``alias.s<view> = show <view>`` for all
|
|
|
views. i.e. `hg swork` would execute `hg show work`.
|
|
|
|
|
|
Aliases that would conflict with existing registrations will not be
|
|
|
performed.
|
|
|
"""
|
|
|
|
|
|
from __future__ import absolute_import
|
|
|
|
|
|
from mercurial.i18n import _
|
|
|
from mercurial.node import nullrev
|
|
|
from mercurial import (
|
|
|
cmdutil,
|
|
|
commands,
|
|
|
destutil,
|
|
|
error,
|
|
|
formatter,
|
|
|
graphmod,
|
|
|
phases,
|
|
|
pycompat,
|
|
|
registrar,
|
|
|
revset,
|
|
|
revsetlang,
|
|
|
)
|
|
|
|
|
|
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
|
|
|
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
|
|
|
# be specifying the version(s) of Mercurial they are tested with, or
|
|
|
# leave the attribute unspecified.
|
|
|
testedwith = 'ships-with-hg-core'
|
|
|
|
|
|
cmdtable = {}
|
|
|
command = registrar.command(cmdtable)
|
|
|
revsetpredicate = registrar.revsetpredicate()
|
|
|
|
|
|
class showcmdfunc(registrar._funcregistrarbase):
|
|
|
"""Register a function to be invoked for an `hg show <thing>`."""
|
|
|
|
|
|
# Used by _formatdoc().
|
|
|
_docformat = '%s -- %s'
|
|
|
|
|
|
def _extrasetup(self, name, func, fmtopic=None, csettopic=None):
|
|
|
"""Called with decorator arguments to register a show view.
|
|
|
|
|
|
``name`` is the sub-command name.
|
|
|
|
|
|
``func`` is the function being decorated.
|
|
|
|
|
|
``fmtopic`` is the topic in the style that will be rendered for
|
|
|
this view.
|
|
|
|
|
|
``csettopic`` is the topic in the style to be used for a changeset
|
|
|
printer.
|
|
|
|
|
|
If ``fmtopic`` is specified, the view function will receive a
|
|
|
formatter instance. If ``csettopic`` is specified, the view
|
|
|
function will receive a changeset printer.
|
|
|
"""
|
|
|
func._fmtopic = fmtopic
|
|
|
func._csettopic = csettopic
|
|
|
|
|
|
showview = showcmdfunc()
|
|
|
|
|
|
@command('show', [
|
|
|
# TODO: Switch this template flag to use cmdutil.formatteropts if
|
|
|
# 'hg show' becomes stable before --template/-T is stable. For now,
|
|
|
# we are putting it here without the '(EXPERIMENTAL)' flag because it
|
|
|
# is an important part of the 'hg show' user experience and the entire
|
|
|
# 'hg show' experience is experimental.
|
|
|
('T', 'template', '', ('display with template'), _('TEMPLATE')),
|
|
|
], _('VIEW'))
|
|
|
def show(ui, repo, view=None, template=None):
|
|
|
"""show various repository information
|
|
|
|
|
|
A requested view of repository data is displayed.
|
|
|
|
|
|
If no view is requested, the list of available views is shown and the
|
|
|
command aborts.
|
|
|
|
|
|
.. note::
|
|
|
|
|
|
There are no backwards compatibility guarantees for the output of this
|
|
|
command. Output may change in any future Mercurial release.
|
|
|
|
|
|
Consumers wanting stable command output should specify a template via
|
|
|
``-T/--template``.
|
|
|
|
|
|
List of available views:
|
|
|
"""
|
|
|
if ui.plain() and not template:
|
|
|
hint = _('invoke with -T/--template to control output format')
|
|
|
raise error.Abort(_('must specify a template in plain mode'), hint=hint)
|
|
|
|
|
|
views = showview._table
|
|
|
|
|
|
if not view:
|
|
|
ui.pager('show')
|
|
|
# TODO consider using formatter here so available views can be
|
|
|
# rendered to custom format.
|
|
|
ui.write(_('available views:\n'))
|
|
|
ui.write('\n')
|
|
|
|
|
|
for name, func in sorted(views.items()):
|
|
|
ui.write(('%s\n') % func.__doc__)
|
|
|
|
|
|
ui.write('\n')
|
|
|
raise error.Abort(_('no view requested'),
|
|
|
hint=_('use "hg show VIEW" to choose a view'))
|
|
|
|
|
|
# TODO use same logic as dispatch to perform prefix matching.
|
|
|
if view not in views:
|
|
|
raise error.Abort(_('unknown view: %s') % view,
|
|
|
hint=_('run "hg show" to see available views'))
|
|
|
|
|
|
template = template or 'show'
|
|
|
|
|
|
fn = views[view]
|
|
|
ui.pager('show')
|
|
|
|
|
|
if fn._fmtopic:
|
|
|
fmtopic = 'show%s' % fn._fmtopic
|
|
|
with ui.formatter(fmtopic, {'template': template}) as fm:
|
|
|
return fn(ui, repo, fm)
|
|
|
elif fn._csettopic:
|
|
|
ref = 'show%s' % fn._csettopic
|
|
|
spec = formatter.lookuptemplate(ui, ref, template)
|
|
|
displayer = cmdutil.changeset_templater(ui, repo, spec, buffered=True)
|
|
|
return fn(ui, repo, displayer)
|
|
|
else:
|
|
|
return fn(ui, repo)
|
|
|
|
|
|
@showview('bookmarks', fmtopic='bookmarks')
|
|
|
def showbookmarks(ui, repo, fm):
|
|
|
"""bookmarks and their associated changeset"""
|
|
|
marks = repo._bookmarks
|
|
|
if not len(marks):
|
|
|
# This is a bit hacky. Ideally, templates would have a way to
|
|
|
# specify an empty output, but we shouldn't corrupt JSON while
|
|
|
# waiting for this functionality.
|
|
|
if not isinstance(fm, formatter.jsonformatter):
|
|
|
ui.write(_('(no bookmarks set)\n'))
|
|
|
return
|
|
|
|
|
|
active = repo._activebookmark
|
|
|
longestname = max(len(b) for b in marks)
|
|
|
# TODO consider exposing longest shortest(node).
|
|
|
|
|
|
for bm, node in sorted(marks.items()):
|
|
|
fm.startitem()
|
|
|
fm.context(ctx=repo[node])
|
|
|
fm.write('bookmark', '%s', bm)
|
|
|
fm.write('node', fm.hexfunc(node), fm.hexfunc(node))
|
|
|
fm.data(active=bm == active,
|
|
|
longestbookmarklen=longestname,
|
|
|
nodelen=5)
|
|
|
|
|
|
@showview('stack', csettopic='stack')
|
|
|
def showstack(ui, repo, displayer):
|
|
|
"""current line of work"""
|
|
|
wdirctx = repo['.']
|
|
|
if wdirctx.rev() == nullrev:
|
|
|
raise error.Abort(_('stack view only available when there is a '
|
|
|
'working directory'))
|
|
|
|
|
|
if wdirctx.phase() == phases.public:
|
|
|
ui.write(_('(empty stack; working directory parent is a published '
|
|
|
'changeset)\n'))
|
|
|
return
|
|
|
|
|
|
# TODO extract "find stack" into a function to facilitate
|
|
|
# customization and reuse.
|
|
|
|
|
|
baserev = destutil.stackbase(ui, repo)
|
|
|
basectx = None
|
|
|
|
|
|
if baserev is None:
|
|
|
baserev = wdirctx.rev()
|
|
|
stackrevs = {wdirctx.rev()}
|
|
|
else:
|
|
|
stackrevs = set(repo.revs('%d::.', baserev))
|
|
|
|
|
|
ctx = repo[baserev]
|
|
|
if ctx.p1().rev() != nullrev:
|
|
|
basectx = ctx.p1()
|
|
|
|
|
|
# And relevant descendants.
|
|
|
branchpointattip = False
|
|
|
cl = repo.changelog
|
|
|
|
|
|
for rev in cl.descendants([wdirctx.rev()]):
|
|
|
ctx = repo[rev]
|
|
|
|
|
|
# Will only happen if . is public.
|
|
|
if ctx.phase() == phases.public:
|
|
|
break
|
|
|
|
|
|
stackrevs.add(ctx.rev())
|
|
|
|
|
|
# ctx.children() within a function iterating on descandants
|
|
|
# potentially has severe performance concerns because revlog.children()
|
|
|
# iterates over all revisions after ctx's node. However, the number of
|
|
|
# draft changesets should be a reasonably small number. So even if
|
|
|
# this is quadratic, the perf impact should be minimal.
|
|
|
if len(ctx.children()) > 1:
|
|
|
branchpointattip = True
|
|
|
break
|
|
|
|
|
|
stackrevs = list(sorted(stackrevs, reverse=True))
|
|
|
|
|
|
# Find likely target heads for the current stack. These are likely
|
|
|
# merge or rebase targets.
|
|
|
if basectx:
|
|
|
# TODO make this customizable?
|
|
|
newheads = set(repo.revs('heads(%d::) - %ld - not public()',
|
|
|
basectx.rev(), stackrevs))
|
|
|
else:
|
|
|
newheads = set()
|
|
|
|
|
|
try:
|
|
|
cmdutil.findcmd('rebase', commands.table)
|
|
|
haverebase = True
|
|
|
except (error.AmbiguousCommand, error.UnknownCommand):
|
|
|
haverebase = False
|
|
|
|
|
|
# TODO use templating.
|
|
|
# TODO consider using graphmod. But it may not be necessary given
|
|
|
# our simplicity and the customizations required.
|
|
|
# TODO use proper graph symbols from graphmod
|
|
|
|
|
|
shortesttmpl = formatter.maketemplater(ui, '{shortest(node, 5)}')
|
|
|
def shortest(ctx):
|
|
|
return shortesttmpl.render({'ctx': ctx, 'node': ctx.hex()})
|
|
|
|
|
|
# We write out new heads to aid in DAG awareness and to help with decision
|
|
|
# making on how the stack should be reconciled with commits made since the
|
|
|
# branch point.
|
|
|
if newheads:
|
|
|
# Calculate distance from base so we can render the count and so we can
|
|
|
# sort display order by commit distance.
|
|
|
revdistance = {}
|
|
|
for head in newheads:
|
|
|
# There is some redundancy in DAG traversal here and therefore
|
|
|
# room to optimize.
|
|
|
ancestors = cl.ancestors([head], stoprev=basectx.rev())
|
|
|
revdistance[head] = len(list(ancestors))
|
|
|
|
|
|
sourcectx = repo[stackrevs[-1]]
|
|
|
|
|
|
sortedheads = sorted(newheads, key=lambda x: revdistance[x],
|
|
|
reverse=True)
|
|
|
|
|
|
for i, rev in enumerate(sortedheads):
|
|
|
ctx = repo[rev]
|
|
|
|
|
|
if i:
|
|
|
ui.write(': ')
|
|
|
else:
|
|
|
ui.write(' ')
|
|
|
|
|
|
ui.write(('o '))
|
|
|
displayer.show(ctx, nodelen=5)
|
|
|
displayer.flush(ctx)
|
|
|
ui.write('\n')
|
|
|
|
|
|
if i:
|
|
|
ui.write(':/')
|
|
|
else:
|
|
|
ui.write(' /')
|
|
|
|
|
|
ui.write(' (')
|
|
|
ui.write(_('%d commits ahead') % revdistance[rev],
|
|
|
label='stack.commitdistance')
|
|
|
|
|
|
if haverebase:
|
|
|
# TODO may be able to omit --source in some scenarios
|
|
|
ui.write('; ')
|
|
|
ui.write(('hg rebase --source %s --dest %s' % (
|
|
|
shortest(sourcectx), shortest(ctx))),
|
|
|
label='stack.rebasehint')
|
|
|
|
|
|
ui.write(')\n')
|
|
|
|
|
|
ui.write(':\n: ')
|
|
|
ui.write(_('(stack head)\n'), label='stack.label')
|
|
|
|
|
|
if branchpointattip:
|
|
|
ui.write(' \\ / ')
|
|
|
ui.write(_('(multiple children)\n'), label='stack.label')
|
|
|
ui.write(' |\n')
|
|
|
|
|
|
for rev in stackrevs:
|
|
|
ctx = repo[rev]
|
|
|
symbol = '@' if rev == wdirctx.rev() else 'o'
|
|
|
|
|
|
if newheads:
|
|
|
ui.write(': ')
|
|
|
else:
|
|
|
ui.write(' ')
|
|
|
|
|
|
ui.write(symbol, ' ')
|
|
|
displayer.show(ctx, nodelen=5)
|
|
|
displayer.flush(ctx)
|
|
|
ui.write('\n')
|
|
|
|
|
|
# TODO display histedit hint?
|
|
|
|
|
|
if basectx:
|
|
|
# Vertically and horizontally separate stack base from parent
|
|
|
# to reinforce stack boundary.
|
|
|
if newheads:
|
|
|
ui.write(':/ ')
|
|
|
else:
|
|
|
ui.write(' / ')
|
|
|
|
|
|
ui.write(_('(stack base)'), '\n', label='stack.label')
|
|
|
ui.write(('o '))
|
|
|
|
|
|
displayer.show(basectx, nodelen=5)
|
|
|
displayer.flush(basectx)
|
|
|
ui.write('\n')
|
|
|
|
|
|
@revsetpredicate('_underway([commitage[, headage]])')
|
|
|
def underwayrevset(repo, subset, x):
|
|
|
args = revset.getargsdict(x, 'underway', 'commitage headage')
|
|
|
if 'commitage' not in args:
|
|
|
args['commitage'] = None
|
|
|
if 'headage' not in args:
|
|
|
args['headage'] = None
|
|
|
|
|
|
# We assume callers of this revset add a topographical sort on the
|
|
|
# result. This means there is no benefit to making the revset lazy
|
|
|
# since the topographical sort needs to consume all revs.
|
|
|
#
|
|
|
# With this in mind, we build up the set manually instead of constructing
|
|
|
# a complex revset. This enables faster execution.
|
|
|
|
|
|
# Mutable changesets (non-public) are the most important changesets
|
|
|
# to return. ``not public()`` will also pull in obsolete changesets if
|
|
|
# there is a non-obsolete changeset with obsolete ancestors. This is
|
|
|
# why we exclude obsolete changesets from this query.
|
|
|
rs = 'not public() and not obsolete()'
|
|
|
rsargs = []
|
|
|
if args['commitage']:
|
|
|
rs += ' and date(%s)'
|
|
|
rsargs.append(revsetlang.getstring(args['commitage'],
|
|
|
_('commitage requires a string')))
|
|
|
|
|
|
mutable = repo.revs(rs, *rsargs)
|
|
|
relevant = revset.baseset(mutable)
|
|
|
|
|
|
# Add parents of mutable changesets to provide context.
|
|
|
relevant += repo.revs('parents(%ld)', mutable)
|
|
|
|
|
|
# We also pull in (public) heads if they a) aren't closing a branch
|
|
|
# b) are recent.
|
|
|
rs = 'head() and not closed()'
|
|
|
rsargs = []
|
|
|
if args['headage']:
|
|
|
rs += ' and date(%s)'
|
|
|
rsargs.append(revsetlang.getstring(args['headage'],
|
|
|
_('headage requires a string')))
|
|
|
|
|
|
relevant += repo.revs(rs, *rsargs)
|
|
|
|
|
|
# Add working directory parent.
|
|
|
wdirrev = repo['.'].rev()
|
|
|
if wdirrev != nullrev:
|
|
|
relevant += revset.baseset({wdirrev})
|
|
|
|
|
|
return subset & relevant
|
|
|
|
|
|
@showview('work', csettopic='work')
|
|
|
def showwork(ui, repo, displayer):
|
|
|
"""changesets that aren't finished"""
|
|
|
# TODO support date-based limiting when calling revset.
|
|
|
revs = repo.revs('sort(_underway(), topo)')
|
|
|
|
|
|
revdag = graphmod.dagwalker(repo, revs)
|
|
|
|
|
|
ui.setconfig('experimental', 'graphshorten', True)
|
|
|
cmdutil.displaygraph(ui, repo, revdag, displayer, graphmod.asciiedges,
|
|
|
props={'nodelen': 5})
|
|
|
|
|
|
def extsetup(ui):
|
|
|
# Alias `hg <prefix><view>` to `hg show <view>`.
|
|
|
for prefix in ui.configlist('commands', 'show.aliasprefix'):
|
|
|
for view in showview._table:
|
|
|
name = '%s%s' % (prefix, view)
|
|
|
|
|
|
choice, allcommands = cmdutil.findpossible(name, commands.table,
|
|
|
strict=True)
|
|
|
|
|
|
# This alias is already a command name. Don't set it.
|
|
|
if name in choice:
|
|
|
continue
|
|
|
|
|
|
# Same for aliases.
|
|
|
if ui.config('alias', name):
|
|
|
continue
|
|
|
|
|
|
ui.setconfig('alias', name, 'show %s' % view, source='show')
|
|
|
|
|
|
# Adjust the docstring of the show command so it shows all registered views.
|
|
|
# This is a bit hacky because it runs at the end of module load. When moved
|
|
|
# into core or when another extension wants to provide a view, we'll need
|
|
|
# to do this more robustly.
|
|
|
# TODO make this more robust.
|
|
|
def _updatedocstring():
|
|
|
longest = max(map(len, showview._table.keys()))
|
|
|
entries = []
|
|
|
for key in sorted(showview._table.keys()):
|
|
|
entries.append(pycompat.sysstr(' %s %s' % (
|
|
|
key.ljust(longest), showview._table[key]._origdoc)))
|
|
|
|
|
|
cmdtable['show'][0].__doc__ = pycompat.sysstr('%s\n\n%s\n ') % (
|
|
|
cmdtable['show'][0].__doc__.rstrip(),
|
|
|
pycompat.sysstr('\n\n').join(entries))
|
|
|
|
|
|
_updatedocstring()
|
|
|
|