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.venv/Lib/site-packages/pip/_internal/req/__init__.py

import collections
import logging
from dataclasses import dataclass
from typing import Generator, List, Optional, Sequence, Tuple

from pip._internal.utils.logging import indent_log

from .req_file import parse_requirements
from .req_install import InstallRequirement
from .req_set import RequirementSet

__all__ = [
    "RequirementSet",
    "InstallRequirement",
    "parse_requirements",
    "install_given_reqs",
]

logger = logging.getLogger(__name__)


@dataclass(frozen=True)
class InstallationResult:
    name: str


def _validate_requirements(
    requirements: List[InstallRequirement],
) -> Generator[Tuple[str, InstallRequirement], None, None]:
    for req in requirements:
        assert req.name, f"invalid to-be-installed requirement: {req}"
        yield req.name, req


def install_given_reqs(
    requirements: List[InstallRequirement],
    global_options: Sequence[str],
    root: Optional[str],
    home: Optional[str],
    prefix: Optional[str],
    warn_script_location: bool,
    use_user_site: bool,
    pycompile: bool,
) -> List[InstallationResult]:
    """
    Install everything in the given list.

    (to be called after having downloaded and unpacked the packages)
    """
    to_install = collections.OrderedDict(_validate_requirements(requirements))

    if to_install:
        logger.info(
            "Installing collected packages: %s",
            ", ".join(to_install.keys()),
        )

    installed = []

    with indent_log():
        for req_name, requirement in to_install.items():
            if requirement.should_reinstall:
                logger.info("Attempting uninstall: %s", req_name)
                with indent_log():
                    uninstalled_pathset = requirement.uninstall(auto_confirm=True)
            else:
                uninstalled_pathset = None

            try:
                requirement.install(
                    global_options,
                    root=root,
                    home=home,
                    prefix=prefix,
                    warn_script_location=warn_script_location,
                    use_user_site=use_user_site,
                    pycompile=pycompile,
                )
            except Exception:
                # if install did not succeed, rollback previous uninstall
                if uninstalled_pathset and not requirement.install_succeeded:
                    uninstalled_pathset.rollback()
                raise
            else:
                if uninstalled_pathset and requirement.install_succeeded:
                    uninstalled_pathset.commit()

            installed.append(InstallationResult(req_name))

    return installed

91 lines•2.6 KB

python

.venv/Lib/site-packages/pip/_vendor/pygments/formatter.py

Raw Download

"""
    pygments.formatter
    ~~~~~~~~~~~~~~~~~~

    Base formatter class.

    :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

import codecs

from pip._vendor.pygments.util import get_bool_opt
from pip._vendor.pygments.styles import get_style_by_name

__all__ = ['Formatter']


def _lookup_style(style):
    if isinstance(style, str):
        return get_style_by_name(style)
    return style


class Formatter:
    """
    Converts a token stream to text.

    Formatters should have attributes to help selecting them. These
    are similar to the corresponding :class:`~pygments.lexer.Lexer`
    attributes.

    .. autoattribute:: name
       :no-value:

    .. autoattribute:: aliases
       :no-value:

    .. autoattribute:: filenames
       :no-value:

    You can pass options as keyword arguments to the constructor.
    All formatters accept these basic options:

    ``style``
        The style to use, can be a string or a Style subclass
        (default: "default"). Not used by e.g. the
        TerminalFormatter.
    ``full``
        Tells the formatter to output a "full" document, i.e.
        a complete self-contained document. This doesn't have
        any effect for some formatters (default: false).
    ``title``
        If ``full`` is true, the title that should be used to
        caption the document (default: '').
    ``encoding``
        If given, must be an encoding name. This will be used to
        convert the Unicode token strings to byte strings in the
        output. If it is "" or None, Unicode strings will be written
        to the output file, which most file-like objects do not
        support (default: None).
    ``outencoding``
        Overrides ``encoding`` if given.

    """

    #: Full name for the formatter, in human-readable form.
    name = None

    #: A list of short, unique identifiers that can be used to lookup
    #: the formatter from a list, e.g. using :func:`.get_formatter_by_name()`.
    aliases = []

    #: A list of fnmatch patterns that match filenames for which this
    #: formatter can produce output. The patterns in this list should be unique
    #: among all formatters.
    filenames = []

    #: If True, this formatter outputs Unicode strings when no encoding
    #: option is given.
    unicodeoutput = True

    def __init__(self, **options):
        """
        As with lexers, this constructor takes arbitrary optional arguments,
        and if you override it, you should first process your own options, then
        call the base class implementation.
        """
        self.style = _lookup_style(options.get('style', 'default'))
        self.full = get_bool_opt(options, 'full', False)
        self.title = options.get('title', '')
        self.encoding = options.get('encoding', None) or None
        if self.encoding in ('guess', 'chardet'):
            # can happen for e.g. pygmentize -O encoding=guess
            self.encoding = 'utf-8'
        self.encoding = options.get('outencoding') or self.encoding
        self.options = options

    def get_style_defs(self, arg=''):
        """
        This method must return statements or declarations suitable to define
        the current style for subsequent highlighted text (e.g. CSS classes
        in the `HTMLFormatter`).

        The optional argument `arg` can be used to modify the generation and
        is formatter dependent (it is standardized because it can be given on
        the command line).

        This method is called by the ``-S`` :doc:`command-line option <cmdline>`,
        the `arg` is then given by the ``-a`` option.
        """
        return ''

    def format(self, tokensource, outfile):
        """
        This method must format the tokens from the `tokensource` iterable and
        write the formatted version to the file object `outfile`.

        Formatter options can control how exactly the tokens are converted.
        """
        if self.encoding:
            # wrap the outfile in a StreamWriter
            outfile = codecs.lookup(self.encoding)[3](outfile)
        return self.format_unencoded(tokensource, outfile)

    # Allow writing Formatter[str] or Formatter[bytes]. That's equivalent to
    # Formatter. This helps when using third-party type stubs from typeshed.
    def __class_getitem__(cls, name):
        return cls

130 lines•4.3 KB

python

.venv/Lib/site-packages/pip/_vendor/pygments/formatters/terminal256.py

Raw Download

"""
    pygments.formatters.terminal256
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Formatter for 256-color terminal output with ANSI sequences.

    RGB-to-XTERM color conversion routines adapted from xterm256-conv
    tool (http://frexx.de/xterm-256-notes/data/xterm256-conv2.tar.bz2)
    by Wolfgang Frisch.

    Formatter version 1.

    :copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

# TODO:
#  - Options to map style's bold/underline/italic/border attributes
#    to some ANSI attrbutes (something like 'italic=underline')
#  - An option to output "style RGB to xterm RGB/index" conversion table
#  - An option to indicate that we are running in "reverse background"
#    xterm. This means that default colors are white-on-black, not
#    black-on-while, so colors like "white background" need to be converted
#    to "white background, black foreground", etc...

from pip._vendor.pygments.formatter import Formatter
from pip._vendor.pygments.console import codes
from pip._vendor.pygments.style import ansicolors


__all__ = ['Terminal256Formatter', 'TerminalTrueColorFormatter']


class EscapeSequence:
    def __init__(self, fg=None, bg=None, bold=False, underline=False, italic=False):
        self.fg = fg
        self.bg = bg
        self.bold = bold
        self.underline = underline
        self.italic = italic

    def escape(self, attrs):
        if len(attrs):
            return "\x1b[" + ";".join(attrs) + "m"
        return ""

    def color_string(self):
        attrs = []
        if self.fg is not None:
            if self.fg in ansicolors:
                esc = codes[self.fg.replace('ansi','')]
                if ';01m' in esc:
                    self.bold = True
                # extract fg color code.
                attrs.append(esc[2:4])
            else:
                attrs.extend(("38", "5", "%i" % self.fg))
        if self.bg is not None:
            if self.bg in ansicolors:
                esc = codes[self.bg.replace('ansi','')]
                # extract fg color code, add 10 for bg.
                attrs.append(str(int(esc[2:4])+10))
            else:
                attrs.extend(("48", "5", "%i" % self.bg))
        if self.bold:
            attrs.append("01")
        if self.underline:
            attrs.append("04")
        if self.italic:
            attrs.append("03")
        return self.escape(attrs)

    def true_color_string(self):
        attrs = []
        if self.fg:
            attrs.extend(("38", "2", str(self.fg[0]), str(self.fg[1]), str(self.fg[2])))
        if self.bg:
            attrs.extend(("48", "2", str(self.bg[0]), str(self.bg[1]), str(self.bg[2])))
        if self.bold:
            attrs.append("01")
        if self.underline:
            attrs.append("04")
        if self.italic:
            attrs.append("03")
        return self.escape(attrs)

    def reset_string(self):
        attrs = []
        if self.fg is not None:
            attrs.append("39")
        if self.bg is not None:
            attrs.append("49")
        if self.bold or self.underline or self.italic:
            attrs.append("00")
        return self.escape(attrs)


class Terminal256Formatter(Formatter):
    """
    Format tokens with ANSI color sequences, for output in a 256-color
    terminal or console.  Like in `TerminalFormatter` color sequences
    are terminated at newlines, so that paging the output works correctly.

    The formatter takes colors from a style defined by the `style` option
    and converts them to nearest ANSI 256-color escape sequences. Bold and
    underline attributes from the style are preserved (and displayed).

    .. versionadded:: 0.9

    .. versionchanged:: 2.2
       If the used style defines foreground colors in the form ``#ansi*``, then
       `Terminal256Formatter` will map these to non extended foreground color.
       See :ref:`AnsiTerminalStyle` for more information.

    .. versionchanged:: 2.4
       The ANSI color names have been updated with names that are easier to
       understand and align with colornames of other projects and terminals.
       See :ref:`this table <new-ansi-color-names>` for more information.


    Options accepted:

    `style`
        The style to use, can be a string or a Style subclass (default:
        ``'default'``).

    `linenos`
        Set to ``True`` to have line numbers on the terminal output as well
        (default: ``False`` = no line numbers).
    """
    name = 'Terminal256'
    aliases = ['terminal256', 'console256', '256']
    filenames = []

    def __init__(self, **options):
        Formatter.__init__(self, **options)

        self.xterm_colors = []
        self.best_match = {}
        self.style_string = {}

        self.usebold = 'nobold' not in options
        self.useunderline = 'nounderline' not in options
        self.useitalic = 'noitalic' not in options

        self._build_color_table()  # build an RGB-to-256 color conversion table
        self._setup_styles()  # convert selected style's colors to term. colors

        self.linenos = options.get('linenos', False)
        self._lineno = 0

    def _build_color_table(self):
        # colors 0..15: 16 basic colors

        self.xterm_colors.append((0x00, 0x00, 0x00))  # 0
        self.xterm_colors.append((0xcd, 0x00, 0x00))  # 1
        self.xterm_colors.append((0x00, 0xcd, 0x00))  # 2
        self.xterm_colors.append((0xcd, 0xcd, 0x00))  # 3
        self.xterm_colors.append((0x00, 0x00, 0xee))  # 4
        self.xterm_colors.append((0xcd, 0x00, 0xcd))  # 5
        self.xterm_colors.append((0x00, 0xcd, 0xcd))  # 6
        self.xterm_colors.append((0xe5, 0xe5, 0xe5))  # 7
        self.xterm_colors.append((0x7f, 0x7f, 0x7f))  # 8
        self.xterm_colors.append((0xff, 0x00, 0x00))  # 9
        self.xterm_colors.append((0x00, 0xff, 0x00))  # 10
        self.xterm_colors.append((0xff, 0xff, 0x00))  # 11
        self.xterm_colors.append((0x5c, 0x5c, 0xff))  # 12
        self.xterm_colors.append((0xff, 0x00, 0xff))  # 13
        self.xterm_colors.append((0x00, 0xff, 0xff))  # 14
        self.xterm_colors.append((0xff, 0xff, 0xff))  # 15

        # colors 16..232: the 6x6x6 color cube

        valuerange = (0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff)

        for i in range(217):
            r = valuerange[(i // 36) % 6]
            g = valuerange[(i // 6) % 6]
            b = valuerange[i % 6]
            self.xterm_colors.append((r, g, b))

        # colors 233..253: grayscale

        for i in range(1, 22):
            v = 8 + i * 10
            self.xterm_colors.append((v, v, v))

    def _closest_color(self, r, g, b):
        distance = 257*257*3  # "infinity" (>distance from #000000 to #ffffff)
        match = 0

        for i in range(0, 254):
            values = self.xterm_colors[i]

            rd = r - values[0]
            gd = g - values[1]
            bd = b - values[2]
            d = rd*rd + gd*gd + bd*bd

            if d < distance:
                match = i
                distance = d
        return match

    def _color_index(self, color):
        index = self.best_match.get(color, None)
        if color in ansicolors:
            # strip the `ansi/#ansi` part and look up code
            index = color
            self.best_match[color] = index
        if index is None:
            try:
                rgb = int(str(color), 16)
            except ValueError:
                rgb = 0

            r = (rgb >> 16) & 0xff
            g = (rgb >> 8) & 0xff
            b = rgb & 0xff
            index = self._closest_color(r, g, b)
            self.best_match[color] = index
        return index

    def _setup_styles(self):
        for ttype, ndef in self.style:
            escape = EscapeSequence()
            # get foreground from ansicolor if set
            if ndef['ansicolor']:
                escape.fg = self._color_index(ndef['ansicolor'])
            elif ndef['color']:
                escape.fg = self._color_index(ndef['color'])
            if ndef['bgansicolor']:
                escape.bg = self._color_index(ndef['bgansicolor'])
            elif ndef['bgcolor']:
                escape.bg = self._color_index(ndef['bgcolor'])
            if self.usebold and ndef['bold']:
                escape.bold = True
            if self.useunderline and ndef['underline']:
                escape.underline = True
            if self.useitalic and ndef['italic']:
                escape.italic = True
            self.style_string[str(ttype)] = (escape.color_string(),
                                             escape.reset_string())

    def _write_lineno(self, outfile):
        self._lineno += 1
        outfile.write("%s%04d: " % (self._lineno != 1 and '\n' or '', self._lineno))

    def format(self, tokensource, outfile):
        return Formatter.format(self, tokensource, outfile)

    def format_unencoded(self, tokensource, outfile):
        if self.linenos:
            self._write_lineno(outfile)

        for ttype, value in tokensource:
            not_found = True
            while ttype and not_found:
                try:
                    # outfile.write( "<" + str(ttype) + ">" )
                    on, off = self.style_string[str(ttype)]

                    # Like TerminalFormatter, add "reset colors" escape sequence
                    # on newline.
                    spl = value.split('\n')
                    for line in spl[:-1]:
                        if line:
                            outfile.write(on + line + off)
                        if self.linenos:
                            self._write_lineno(outfile)
                        else:
                            outfile.write('\n')

                    if spl[-1]:
                        outfile.write(on + spl[-1] + off)

                    not_found = False
                    # outfile.write( '#' + str(ttype) + '#' )

                except KeyError:
                    # ottype = ttype
                    ttype = ttype.parent
                    # outfile.write( '!' + str(ottype) + '->' + str(ttype) + '!' )

            if not_found:
                outfile.write(value)

        if self.linenos:
            outfile.write("\n")



class TerminalTrueColorFormatter(Terminal256Formatter):
    r"""
    Format tokens with ANSI color sequences, for output in a true-color
    terminal or console.  Like in `TerminalFormatter` color sequences
    are terminated at newlines, so that paging the output works correctly.

    .. versionadded:: 2.1

    Options accepted:

    `style`
        The style to use, can be a string or a Style subclass (default:
        ``'default'``).
    """
    name = 'TerminalTrueColor'
    aliases = ['terminal16m', 'console16m', '16m']
    filenames = []

    def _build_color_table(self):
        pass

    def _color_tuple(self, color):
        try:
            rgb = int(str(color), 16)
        except ValueError:
            return None
        r = (rgb >> 16) & 0xff
        g = (rgb >> 8) & 0xff
        b = rgb & 0xff
        return (r, g, b)

    def _setup_styles(self):
        for ttype, ndef in self.style:
            escape = EscapeSequence()
            if ndef['color']:
                escape.fg = self._color_tuple(ndef['color'])
            if ndef['bgcolor']:
                escape.bg = self._color_tuple(ndef['bgcolor'])
            if self.usebold and ndef['bold']:
                escape.bold = True
            if self.useunderline and ndef['underline']:
                escape.underline = True
            if self.useitalic and ndef['italic']:
                escape.italic = True
            self.style_string[str(ttype)] = (escape.true_color_string(),
                                             escape.reset_string())

339 lines•11.5 KB

python

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