add support for streaming clone.
existing clone code uses pull to get changes from remote repo. is very
slow, uses lots of memory and cpu.
new clone code has server write file data straight to client, client
writes file data straight to disk. memory and cpu used are very low,
clone is much faster over lan.
new client can still clone with pull, can still clone from older servers.
new server can still serve older clients.
import sys, textwrap
# import from the live mercurial repo
sys.path.insert(0, "..")
from mercurial.commands import table, globalopts
from mercurial.i18n import gettext as _
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 = " %s" % shortdesc
return (shortdesc, desc)
def get_opts(opts):
for shortopt, longopt, default, desc in opts:
allopts = []
if shortopt:
allopts.append("-%s" % shortopt)
if longopt:
allopts.append("--%s" % longopt)
desc += default and _(" (default: %s)") % default or ""
yield(", ".join(allopts), desc)
def get_cmd(cmd):
d = {}
attr = table[cmd]
cmds = cmd.lstrip("^").split("|")
d['synopsis'] = attr[2]
d['cmd'] = cmds[0]
d['aliases'] = cmd.split("|")[1:]
d['desc'] = get_desc(attr[0].__doc__)
d['opts'] = list(get_opts(attr[1]))
return d
def show_doc(ui):
def bold(s, text=""):
ui.write("%s\n%s\n%s\n" % (s, "="*len(s), text))
def underlined(s, text=""):
ui.write("%s\n%s\n%s\n" % (s, "-"*len(s), text))
# print options
underlined(_("OPTIONS"))
for optstr, desc in get_opts(globalopts):
ui.write("%s::\n %s\n\n" % (optstr, desc))
# print cmds
underlined(_("COMMANDS"))
h = {}
for c, attr in table.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])
# synopsis
ui.write("%s::\n" % d['synopsis'].replace("hg ","", 1))
# 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"))
for optstr, desc in opt_output:
if desc:
s = "%-*s %s" % (opts_len, optstr, desc)
else:
s = optstr
s = textwrap.fill(s, initial_indent=4 * " ",
subsequent_indent=(6 + opts_len) * " ")
ui.write("%s\n" % s)
ui.write("\n")
# aliases
if d['aliases']:
ui.write(_(" aliases: %s\n\n") % " ".join(d['aliases']))
if __name__ == "__main__":
show_doc(sys.stdout)