view doc/gendoc.py @ 12975:278e3c9b939e

eol: added filter aliases for backwards compatibility with win32text

This makes it possible to switch most win32text configurations (i.e. those
that use cleverencode and cleverdecode) to hgeol simply by disabling one and
enabling the other. Any rules found in repo-specific .hgeol files will be
appended to the configuration in .hgrc.

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 encoding
from mercurial.commands import table, globalopts
from mercurial.i18n import _
from mercurial.help import helptable
from mercurial import extensions

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
        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, cmdtable):
    d = {}
    attr = cmdtable[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 section(ui, s):
    ui.write("%s\n%s\n\n" % (s, "-" * encoding.colwidth(s)))

def subsection(ui, s):
    ui.write("%s\n%s\n\n" % (s, '"' * encoding.colwidth(s)))

def subsubsection(ui, s):
    ui.write("%s\n%s\n\n" % (s, "." * encoding.colwidth(s)))

def subsubsubsection(ui, s):
    ui.write("%s\n%s\n\n" % (s, "#" * encoding.colwidth(s)))


def show_doc(ui):
    # print options
    section(ui, _("Options"))
    for optstr, desc in get_opts(globalopts):
        ui.write("%s\n    %s\n\n" % (optstr, desc))

    # print cmds
    section(ui, _("Commands"))
    commandprinter(ui, table, subsection)

    # print topics
    for names, sec, doc in helptable:
        for name in names:
            ui.write(".. _%s:\n" % name)
        ui.write("\n")
        section(ui, sec)
        if hasattr(doc, '__call__'):
            doc = doc()
        ui.write(doc)
        ui.write("\n")

    section(ui, _("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)
        subsection(ui, extensionname)
        ui.write("%s\n\n" % mod.__doc__)
        cmdtable = getattr(mod, 'cmdtable', None)
        if cmdtable:
            subsubsection(ui, _('Commands'))
            commandprinter(ui, cmdtable, subsubsubsection)

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)
        sectionfunc(ui, d['cmd'])
        # 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"))
            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']))


def allextensionnames():
    extensionnames = []

    extensionsdictionary = extensions.enabled()[0]
    extensionnames.extend(extensionsdictionary.keys())

    extensionsdictionary = extensions.disabled()[0]
    extensionnames.extend(extensionsdictionary.keys())

    return extensionnames


if __name__ == "__main__":
    show_doc(sys.stdout)