##// END OF EJS Templates
transplant: crash if repo.commit() finds nothing to commit...
transplant: crash if repo.commit() finds nothing to commit (makes issue2135, issue2264 more obvious, but does nothing to fix either one) This seems to happen in two distinct cases: * patch.patch() claims success but changes nothing (e.g. the transplanted changeset adds an empty file that already exists) * patch.patch() makes changes, but repo.status() fails to report them Both of these seem like bugs in other parts of Mercurial, so arguably it's not transplant's job to detect the failure to commit. However: * detecting the problem as soon as possible is desirable * it prevents a more obscure crash later, in transplants.write() * there might be other lurking (or future) bugs that cause repo.commit() to do nothing Also, in the case of issue2264 (source changesets silently dropped by transplant), the only way to spot the problem currently is the crash in transplants.write(). Failure to transplant a patch should abort immediately, whether it's user error (patch does not apply) or a Mercurial bug (e.g. repo.status() failing to report changes).

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r11638:79231258 stable
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gendoc.py
119 lines | 3.3 KiB | text/x-python | PythonLexer
import os, sys
# 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 encoding
from mercurial.commands import table, globalopts
from mercurial.i18n import _
from mercurial.help import helptable
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 opt in opts:
if len(opt) == 5:
shortopt, longopt, default, desc, optlabel = opt
else:
shortopt, longopt, default, desc = opt
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['cmd'] = cmds[0]
d['aliases'] = cmd.split("|")[1:]
d['desc'] = get_desc(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 show_doc(ui):
def section(s):
ui.write("%s\n%s\n\n" % (s, "-" * encoding.colwidth(s)))
def subsection(s):
ui.write("%s\n%s\n\n" % (s, '"' * encoding.colwidth(s)))
# print options
section(_("Options"))
for optstr, desc in get_opts(globalopts):
ui.write("%s\n %s\n\n" % (optstr, desc))
# print cmds
section(_("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\n" % d['cmd'])
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\n"))
for optstr, desc in opt_output:
if desc:
s = "%-*s %s" % (opts_len, optstr, desc)
else:
s = optstr
ui.write(" %s\n" % s)
ui.write("\n")
# aliases
if d['aliases']:
ui.write(_(" aliases: %s\n\n") % " ".join(d['aliases']))
# print topics
for names, sec, doc in helptable:
for name in names:
ui.write(".. _%s:\n" % name)
ui.write("\n")
section(sec)
if callable(doc):
doc = doc()
ui.write(doc)
ui.write("\n")
if __name__ == "__main__":
show_doc(sys.stdout)