author | Pierre-Yves David <pierre-yves.david@octobus.net> |
Sat, 17 Jun 2017 18:28:20 +0200 | |
changeset 32966 | 61a8321c9962 |
parent 32837 | 50586a0a946f |
child 33046 | 11f768258dcc |
permissions | -rw-r--r-- |
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# show.py - Extension implementing `hg show` |
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# |
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# Copyright 2017 Gregory Szorc <gregory.szorc@gmail.com> |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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"""unified command to show various repository information (EXPERIMENTAL) |
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This extension provides the :hg:`show` command, which provides a central |
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command for displaying commonly-accessed repository data and views of that |
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data. |
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""" |
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from __future__ import absolute_import |
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from mercurial.i18n import _ |
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from mercurial.node import nullrev |
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from mercurial import ( |
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cmdutil, |
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error, |
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formatter, |
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graphmod, |
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pycompat, |
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registrar, |
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revset, |
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revsetlang, |
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) |
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# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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# be specifying the version(s) of Mercurial they are tested with, or |
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# leave the attribute unspecified. |
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testedwith = 'ships-with-hg-core' |
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cmdtable = {} |
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command = registrar.command(cmdtable) |
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revsetpredicate = registrar.revsetpredicate() |
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class showcmdfunc(registrar._funcregistrarbase): |
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"""Register a function to be invoked for an `hg show <thing>`.""" |
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# Used by _formatdoc(). |
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_docformat = '%s -- %s' |
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def _extrasetup(self, name, func, fmtopic=None): |
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"""Called with decorator arguments to register a show view. |
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``name`` is the sub-command name. |
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``func`` is the function being decorated. |
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``fmtopic`` is the topic in the style that will be rendered for |
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this view. |
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""" |
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func._fmtopic = fmtopic |
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showview = showcmdfunc() |
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@command('show', [ |
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# TODO: Switch this template flag to use cmdutil.formatteropts if |
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# 'hg show' becomes stable before --template/-T is stable. For now, |
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# we are putting it here without the '(EXPERIMENTAL)' flag because it |
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# is an important part of the 'hg show' user experience and the entire |
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# 'hg show' experience is experimental. |
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('T', 'template', '', ('display with template'), _('TEMPLATE')), |
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], _('VIEW')) |
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def show(ui, repo, view=None, template=None): |
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"""show various repository information |
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A requested view of repository data is displayed. |
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If no view is requested, the list of available views is shown and the |
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command aborts. |
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.. note:: |
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There are no backwards compatibility guarantees for the output of this |
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command. Output may change in any future Mercurial release. |
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Consumers wanting stable command output should specify a template via |
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``-T/--template``. |
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List of available views: |
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""" |
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if ui.plain() and not template: |
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hint = _('invoke with -T/--template to control output format') |
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raise error.Abort(_('must specify a template in plain mode'), hint=hint) |
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views = showview._table |
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if not view: |
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ui.pager('show') |
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# TODO consider using formatter here so available views can be |
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# rendered to custom format. |
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ui.write(_('available views:\n')) |
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ui.write('\n') |
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for name, func in sorted(views.items()): |
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ui.write(('%s\n') % func.__doc__) |
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ui.write('\n') |
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raise error.Abort(_('no view requested'), |
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hint=_('use "hg show VIEW" to choose a view')) |
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# TODO use same logic as dispatch to perform prefix matching. |
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if view not in views: |
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raise error.Abort(_('unknown view: %s') % view, |
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hint=_('run "hg show" to see available views')) |
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template = template or 'show' |
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fmtopic = 'show%s' % views[view]._fmtopic |
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ui.pager('show') |
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with ui.formatter(fmtopic, {'template': template}) as fm: |
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return views[view](ui, repo, fm) |
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@showview('bookmarks', fmtopic='bookmarks') |
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def showbookmarks(ui, repo, fm): |
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"""bookmarks and their associated changeset""" |
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marks = repo._bookmarks |
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if not len(marks): |
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# This is a bit hacky. Ideally, templates would have a way to |
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# specify an empty output, but we shouldn't corrupt JSON while |
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# waiting for this functionality. |
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if not isinstance(fm, formatter.jsonformatter): |
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ui.write(_('(no bookmarks set)\n')) |
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return |
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|
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active = repo._activebookmark |
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longestname = max(len(b) for b in marks) |
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# TODO consider exposing longest shortest(node). |
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133 |
|
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for bm, node in sorted(marks.items()): |
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fm.startitem() |
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fm.context(ctx=repo[node]) |
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fm.write('bookmark', '%s', bm) |
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fm.write('node', fm.hexfunc(node), fm.hexfunc(node)) |
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fm.data(active=bm == active, |
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longestbookmarklen=longestname) |
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141 |
|
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@revsetpredicate('_underway([commitage[, headage]])') |
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def underwayrevset(repo, subset, x): |
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args = revset.getargsdict(x, 'underway', 'commitage headage') |
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if 'commitage' not in args: |
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args['commitage'] = None |
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if 'headage' not in args: |
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args['headage'] = None |
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149 |
|
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# We assume callers of this revset add a topographical sort on the |
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# result. This means there is no benefit to making the revset lazy |
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# since the topographical sort needs to consume all revs. |
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153 |
# |
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# With this in mind, we build up the set manually instead of constructing |
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# a complex revset. This enables faster execution. |
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156 |
|
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# Mutable changesets (non-public) are the most important changesets |
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# to return. ``not public()`` will also pull in obsolete changesets if |
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# there is a non-obsolete changeset with obsolete ancestors. This is |
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# why we exclude obsolete changesets from this query. |
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rs = 'not public() and not obsolete()' |
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rsargs = [] |
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if args['commitage']: |
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rs += ' and date(%s)' |
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rsargs.append(revsetlang.getstring(args['commitage'], |
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_('commitage requires a string'))) |
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167 |
|
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mutable = repo.revs(rs, *rsargs) |
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169 |
relevant = revset.baseset(mutable) |
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170 |
|
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# Add parents of mutable changesets to provide context. |
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relevant += repo.revs('parents(%ld)', mutable) |
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173 |
|
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174 |
# We also pull in (public) heads if they a) aren't closing a branch |
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175 |
# b) are recent. |
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176 |
rs = 'head() and not closed()' |
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177 |
rsargs = [] |
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if args['headage']: |
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rs += ' and date(%s)' |
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rsargs.append(revsetlang.getstring(args['headage'], |
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181 |
_('headage requires a string'))) |
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182 |
|
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183 |
relevant += repo.revs(rs, *rsargs) |
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184 |
|
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185 |
# Add working directory parent. |
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186 |
wdirrev = repo['.'].rev() |
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187 |
if wdirrev != nullrev: |
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relevant += revset.baseset({wdirrev}) |
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189 |
|
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190 |
return subset & relevant |
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191 |
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192 |
@showview('work', fmtopic='work') |
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193 |
def showwork(ui, repo, fm): |
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194 |
"""changesets that aren't finished""" |
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195 |
# TODO support date-based limiting when calling revset. |
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196 |
revs = repo.revs('sort(_underway(), topo)') |
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197 |
|
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198 |
revdag = graphmod.dagwalker(repo, revs) |
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tmpl = fm._t.load(fm._topic) |
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displayer = cmdutil.makelogtemplater(ui, repo, tmpl, buffered=True) |
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201 |
|
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202 |
ui.setconfig('experimental', 'graphshorten', True) |
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203 |
cmdutil.displaygraph(ui, repo, revdag, displayer, graphmod.asciiedges) |
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204 |
|
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205 |
# Adjust the docstring of the show command so it shows all registered views. |
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206 |
# This is a bit hacky because it runs at the end of module load. When moved |
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207 |
# into core or when another extension wants to provide a view, we'll need |
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208 |
# to do this more robustly. |
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209 |
# TODO make this more robust. |
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210 |
def _updatedocstring(): |
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211 |
longest = max(map(len, showview._table.keys())) |
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212 |
entries = [] |
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for key in sorted(showview._table.keys()): |
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214 |
entries.append(pycompat.sysstr(' %s %s' % ( |
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215 |
key.ljust(longest), showview._table[key]._origdoc))) |
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216 |
|
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217 |
cmdtable['show'][0].__doc__ = pycompat.sysstr('%s\n\n%s\n ') % ( |
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cmdtable['show'][0].__doc__.rstrip(), |
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219 |
pycompat.sysstr('\n\n').join(entries)) |
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220 |
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221 |
_updatedocstring() |