bundle2: fix bundle2 pulling all revs on empty pulls
When bundle2 was enabled, if hg pull had no commits to pull, it would print
'no changes found' and then download the entire repository from the server. This
was caused by heads and common being set to None, which gets treated as
heads=cl.heads() and common=[nullid], which means download the entire repo.
Pulling bundles without a changegroup is a valid use case (like if we're just
updating bookmarks), so this modifes the bundle code to allow not adding
changegroups.
This is backport of
ab5040cd5749.
"""usage: %s DOC ...
where DOC is the name of a document
"""
import os, sys, textwrap
# import from the live mercurial repo
sys.path.insert(0, "..")
# fall back to pure modules if required C extensions are not available
sys.path.append(os.path.join('..', 'mercurial', 'pure'))
from mercurial import demandimport; demandimport.enable()
from mercurial import minirst
from mercurial.commands import table, globalopts
from mercurial.i18n import gettext, _
from mercurial.help import helptable, loaddoc
from mercurial import extensions
from mercurial import util
def get_desc(docstr):
if not docstr:
return "", ""
# sanitize
docstr = docstr.strip("\n")
docstr = docstr.rstrip()
shortdesc = docstr.splitlines()[0].strip()
i = docstr.find("\n")
if i != -1:
desc = docstr[i + 2:]
else:
desc = shortdesc
desc = textwrap.dedent(desc)
return (shortdesc, desc)
def get_opts(opts):
for opt in opts:
if len(opt) == 5:
shortopt, longopt, default, desc, optlabel = opt
else:
shortopt, longopt, default, desc = opt
optlabel = _("VALUE")
allopts = []
if shortopt:
allopts.append("-%s" % shortopt)
if longopt:
allopts.append("--%s" % longopt)
if isinstance(default, list):
allopts[-1] += " <%s[+]>" % optlabel
elif (default is not None) and not isinstance(default, bool):
allopts[-1] += " <%s>" % optlabel
if '\n' in desc:
# only remove line breaks and indentation
desc = ' '.join(l.lstrip() for l in desc.split('\n'))
desc += default and _(" (default: %s)") % default or ""
yield (", ".join(allopts), desc)
def get_cmd(cmd, cmdtable):
d = {}
attr = cmdtable[cmd]
cmds = cmd.lstrip("^").split("|")
d['cmd'] = cmds[0]
d['aliases'] = cmd.split("|")[1:]
d['desc'] = get_desc(gettext(attr[0].__doc__))
d['opts'] = list(get_opts(attr[1]))
s = 'hg ' + cmds[0]
if len(attr) > 2:
if not attr[2].startswith('hg'):
s += ' ' + attr[2]
else:
s = attr[2]
d['synopsis'] = s.strip()
return d
def showdoc(ui):
# print options
ui.write(minirst.section(_("Options")))
multioccur = False
for optstr, desc in get_opts(globalopts):
ui.write("%s\n %s\n\n" % (optstr, desc))
if optstr.endswith("[+]>"):
multioccur = True
if multioccur:
ui.write(_("\n[+] marked option can be specified multiple times\n"))
ui.write("\n")
# print cmds
ui.write(minirst.section(_("Commands")))
commandprinter(ui, table, minirst.subsection)
# print help topics
# The config help topic is included in the hgrc.5 man page.
helpprinter(ui, helptable, minirst.section, exclude=['config'])
ui.write(minirst.section(_("Extensions")))
ui.write(_("This section contains help for extensions that are "
"distributed together with Mercurial. Help for other "
"extensions is available in the help system."))
ui.write("\n\n"
".. contents::\n"
" :class: htmlonly\n"
" :local:\n"
" :depth: 1\n\n")
for extensionname in sorted(allextensionnames()):
mod = extensions.load(None, extensionname, None)
ui.write(minirst.subsection(extensionname))
ui.write("%s\n\n" % gettext(mod.__doc__))
cmdtable = getattr(mod, 'cmdtable', None)
if cmdtable:
ui.write(minirst.subsubsection(_('Commands')))
commandprinter(ui, cmdtable, minirst.subsubsubsection)
def showtopic(ui, topic):
extrahelptable = [
(["common"], '', loaddoc('common')),
(["hg.1"], '', loaddoc('hg.1')),
(["hgignore.5"], '', loaddoc('hgignore.5')),
(["hgrc.5"], '', loaddoc('hgrc.5')),
(["hgignore.5.gendoc"], '', loaddoc('hgignore')),
(["hgrc.5.gendoc"], '', loaddoc('config')),
]
helpprinter(ui, helptable + extrahelptable, None, include=[topic])
def helpprinter(ui, helptable, sectionfunc, include=[], exclude=[]):
for names, sec, doc in helptable:
if exclude and names[0] in exclude:
continue
if include and names[0] not in include:
continue
for name in names:
ui.write(".. _%s:\n" % name)
ui.write("\n")
if sectionfunc:
ui.write(sectionfunc(sec))
if util.safehasattr(doc, '__call__'):
doc = doc()
ui.write(doc)
ui.write("\n")
def commandprinter(ui, cmdtable, sectionfunc):
h = {}
for c, attr in cmdtable.items():
f = c.split("|")[0]
f = f.lstrip("^")
h[f] = c
cmds = h.keys()
cmds.sort()
for f in cmds:
if f.startswith("debug"):
continue
d = get_cmd(h[f], cmdtable)
ui.write(sectionfunc(d['cmd']))
# short description
ui.write(d['desc'][0])
# synopsis
ui.write("::\n\n")
synopsislines = d['synopsis'].splitlines()
for line in synopsislines:
# some commands (such as rebase) have a multi-line
# synopsis
ui.write(" %s\n" % line)
ui.write('\n')
# description
ui.write("%s\n\n" % d['desc'][1])
# options
opt_output = list(d['opts'])
if opt_output:
opts_len = max([len(line[0]) for line in opt_output])
ui.write(_("Options:\n\n"))
multioccur = False
for optstr, desc in opt_output:
if desc:
s = "%-*s %s" % (opts_len, optstr, desc)
else:
s = optstr
ui.write("%s\n" % s)
if optstr.endswith("[+]>"):
multioccur = True
if multioccur:
ui.write(_("\n[+] marked option can be specified"
" multiple times\n"))
ui.write("\n")
# aliases
if d['aliases']:
ui.write(_(" aliases: %s\n\n") % " ".join(d['aliases']))
def allextensionnames():
return extensions.enabled().keys() + extensions.disabled().keys()
if __name__ == "__main__":
doc = 'hg.1.gendoc'
if len(sys.argv) > 1:
doc = sys.argv[1]
if doc == 'hg.1.gendoc':
showdoc(sys.stdout)
else:
showtopic(sys.stdout, sys.argv[1])