view hgext/fastannotate/formatter.py @ 46393:66e8e279133b

hghave: list the module needed for the `vcr` check

I'm tired of having to look up modules each time I setup a system, and try to
distinguish between similar package names to get the right one.  Now that the
search API has been disabled, it's even harder.  There are other python packages
here that should be listed like this, but this is the one that came up missing
today, so it's a start.

Differential Revision: https://phab.mercurial-scm.org/D9879

# Copyright 2016-present Facebook. All Rights Reserved.
#
# format: defines the format used to output annotate result
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import

from mercurial.node import (
    hex,
    short,
)
from mercurial import (
    encoding,
    pycompat,
    templatefilters,
    util,
)
from mercurial.utils import dateutil

# imitating mercurial.commands.annotate, not using the vanilla formatter since
# the data structures are a bit different, and we have some fast paths.
class defaultformatter(object):
    """the default formatter that does leftpad and support some common flags"""

    def __init__(self, ui, repo, opts):
        self.ui = ui
        self.opts = opts

        if ui.quiet:
            datefunc = dateutil.shortdate
        else:
            datefunc = dateutil.datestr
        datefunc = util.cachefunc(datefunc)
        getctx = util.cachefunc(lambda x: repo[x[0]])
        hexfunc = self._hexfunc

        # special handling working copy "changeset" and "rev" functions
        if self.opts.get(b'rev') == b'wdir()':
            orig = hexfunc
            hexfunc = lambda x: None if x is None else orig(x)
            wnode = hexfunc(repo[b'.'].node()) + b'+'
            wrev = b'%d' % repo[b'.'].rev()
            wrevpad = b''
            if not opts.get(b'changeset'):  # only show + if changeset is hidden
                wrev += b'+'
                wrevpad = b' '
            revenc = lambda x: wrev if x is None else (b'%d' % x) + wrevpad

            def csetenc(x):
                if x is None:
                    return wnode
                return pycompat.bytestr(x) + b' '

        else:
            revenc = csetenc = pycompat.bytestr

        # opt name, separator, raw value (for json/plain), encoder (for plain)
        opmap = [
            (b'user', b' ', lambda x: getctx(x).user(), ui.shortuser),
            (b'number', b' ', lambda x: getctx(x).rev(), revenc),
            (b'changeset', b' ', lambda x: hexfunc(x[0]), csetenc),
            (b'date', b' ', lambda x: getctx(x).date(), datefunc),
            (b'file', b' ', lambda x: x[2], pycompat.bytestr),
            (b'line_number', b':', lambda x: x[1] + 1, pycompat.bytestr),
        ]
        fieldnamemap = {b'number': b'rev', b'changeset': b'node'}
        funcmap = [
            (get, sep, fieldnamemap.get(op, op), enc)
            for op, sep, get, enc in opmap
            if opts.get(op)
        ]
        # no separator for first column
        funcmap[0] = list(funcmap[0])
        funcmap[0][1] = b''
        self.funcmap = funcmap

    def write(self, annotatedresult, lines=None, existinglines=None):
        """(annotateresult, [str], set([rev, linenum])) -> None. write output.
        annotateresult can be [(node, linenum, path)], or [(node, linenum)]
        """
        pieces = []  # [[str]]
        maxwidths = []  # [int]

        # calculate padding
        for f, sep, name, enc in self.funcmap:
            l = [enc(f(x)) for x in annotatedresult]
            pieces.append(l)
            if name in [b'node', b'date']:  # node and date has fixed size
                l = l[:1]
            widths = pycompat.maplist(encoding.colwidth, set(l))
            maxwidth = max(widths) if widths else 0
            maxwidths.append(maxwidth)

        # buffered output
        result = b''
        for i in pycompat.xrange(len(annotatedresult)):
            for j, p in enumerate(pieces):
                sep = self.funcmap[j][1]
                padding = b' ' * (maxwidths[j] - len(p[i]))
                result += sep + padding + p[i]
            if lines:
                if existinglines is None:
                    result += b': ' + lines[i]
                else:  # extra formatting showing whether a line exists
                    key = (annotatedresult[i][0], annotatedresult[i][1])
                    if key in existinglines:
                        result += b':  ' + lines[i]
                    else:
                        result += b': ' + self.ui.label(
                            b'-' + lines[i], b'diff.deleted'
                        )

            if result[-1:] != b'\n':
                result += b'\n'

        self.ui.write(result)

    @util.propertycache
    def _hexfunc(self):
        if self.ui.debugflag or self.opts.get(b'long_hash'):
            return hex
        else:
            return short

    def end(self):
        pass


class jsonformatter(defaultformatter):
    def __init__(self, ui, repo, opts):
        super(jsonformatter, self).__init__(ui, repo, opts)
        self.ui.write(b'[')
        self.needcomma = False

    def write(self, annotatedresult, lines=None, existinglines=None):
        if annotatedresult:
            self._writecomma()

        pieces = [
            (name, pycompat.maplist(f, annotatedresult))
            for f, sep, name, enc in self.funcmap
        ]
        if lines is not None:
            pieces.append((b'line', lines))
        pieces.sort()

        seps = [b','] * len(pieces[:-1]) + [b'']

        result = b''
        lasti = len(annotatedresult) - 1
        for i in pycompat.xrange(len(annotatedresult)):
            result += b'\n {\n'
            for j, p in enumerate(pieces):
                k, vs = p
                result += b'  "%s": %s%s\n' % (
                    k,
                    templatefilters.json(vs[i], paranoid=False),
                    seps[j],
                )
            result += b' }%s' % (b'' if i == lasti else b',')
        if lasti >= 0:
            self.needcomma = True

        self.ui.write(result)

    def _writecomma(self):
        if self.needcomma:
            self.ui.write(b',')
            self.needcomma = False

    @util.propertycache
    def _hexfunc(self):
        return hex

    def end(self):
        self.ui.write(b'\n]\n')