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252 lines
8.2 KiB
Python
252 lines
8.2 KiB
Python
""":mod:`wand.version` --- Version data
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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You can find the current version in the command line interface:
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.. sourcecode:: console
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$ python -m wand.version
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0.0.0
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$ python -m wand.version --verbose
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Wand 0.0.0
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ImageMagick 6.7.7-6 2012-06-03 Q16 http://www.imagemagick.org
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$ python -m wand.version --config | grep CC | cut -d : -f 2
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gcc -std=gnu99 -std=gnu99
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$ python -m wand.version --fonts | grep Helvetica
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Helvetica
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Helvetica-Bold
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Helvetica-Light
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Helvetica-Narrow
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Helvetica-Oblique
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$ python -m wand.version --formats | grep CMYK
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CMYK
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CMYKA
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.. versionadded:: 0.2.0
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The command line interface.
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.. versionadded:: 0.2.2
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The ``--verbose``/``-v`` option which also prints ImageMagick library
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version for CLI.
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.. versionadded:: 0.4.1
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The ``--fonts``, ``--formats``, & ``--config`` option allows printing
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additional information about ImageMagick library.
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"""
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from __future__ import print_function
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import ctypes
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import datetime
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import re
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import sys
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try:
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from .api import libmagick, library
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except ImportError:
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libmagick = None
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from .compat import binary, string_type, text
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__all__ = ('VERSION', 'VERSION_INFO', 'MAGICK_VERSION',
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'MAGICK_VERSION_INFO', 'MAGICK_VERSION_NUMBER',
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'MAGICK_RELEASE_DATE', 'MAGICK_RELEASE_DATE_STRING',
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'QUANTUM_DEPTH', 'configure_options', 'fonts', 'formats')
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#: (:class:`tuple`) The version tuple e.g. ``(0, 1, 2)``.
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#:
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#: .. versionchanged:: 0.1.9
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#: Becomes :class:`tuple`. (It was string before.)
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VERSION_INFO = (0, 4, 2)
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#: (:class:`basestring`) The version string e.g. ``'0.1.2'``.
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#:
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#: .. versionchanged:: 0.1.9
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#: Becomes string. (It was :class:`tuple` before.)
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VERSION = '{0}.{1}.{2}'.format(*VERSION_INFO)
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if libmagick:
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c_magick_version = ctypes.c_size_t()
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#: (:class:`basestring`) The version string of the linked ImageMagick
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#: library. The exactly same string to the result of
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#: :c:func:`GetMagickVersion` function.
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#:
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#: Example::
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#:
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#: 'ImageMagick 6.7.7-6 2012-06-03 Q16 http://www.imagemagick.org'
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#:
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#: .. versionadded:: 0.2.1
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MAGICK_VERSION = text(
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libmagick.GetMagickVersion(ctypes.byref(c_magick_version))
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)
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#: (:class:`numbers.Integral`) The version number of the linked
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#: ImageMagick library.
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#:
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#: .. versionadded:: 0.2.1
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MAGICK_VERSION_NUMBER = c_magick_version.value
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_match = re.match(r'^ImageMagick\s+(\d+)\.(\d+)\.(\d+)(?:-(\d+))?',
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MAGICK_VERSION)
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#: (:class:`tuple`) The version tuple e.g. ``(6, 7, 7, 6)`` of
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#: :const:`MAGICK_VERSION`.
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#:
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#: .. versionadded:: 0.2.1
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MAGICK_VERSION_INFO = tuple(int(v or 0) for v in _match.groups())
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#: (:class:`datetime.date`) The release date of the linked ImageMagick
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#: library. The same to the result of :c:func:`GetMagickReleaseDate`
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#: function.
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#:
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#: .. versionadded:: 0.2.1
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MAGICK_RELEASE_DATE_STRING = text(libmagick.GetMagickReleaseDate())
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#: (:class:`basestring`) The date string e.g. ``'2012-06-03'`` of
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#: :const:`MAGICK_RELEASE_DATE_STRING`. This value is the exactly same
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#: string to the result of :c:func:`GetMagickReleaseDate` function.
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#:
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#: .. versionadded:: 0.2.1
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MAGICK_RELEASE_DATE = datetime.date(
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*map(int, MAGICK_RELEASE_DATE_STRING.split('-')))
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c_quantum_depth = ctypes.c_size_t()
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libmagick.GetMagickQuantumDepth(ctypes.byref(c_quantum_depth))
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#: (:class:`numbers.Integral`) The quantum depth configuration of
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#: the linked ImageMagick library. One of 8, 16, 32, or 64.
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#:
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#: .. versionadded:: 0.3.0
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QUANTUM_DEPTH = c_quantum_depth.value
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del c_magick_version, _match, c_quantum_depth
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def configure_options(pattern='*'):
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"""
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Queries ImageMagick library for configurations options given at
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compile-time.
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Example: Find where the ImageMagick documents are installed::
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>>> from wand.version import configure_options
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>>> configure_options('DOC*')
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{'DOCUMENTATION_PATH': '/usr/local/share/doc/ImageMagick-6'}
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:param pattern: A term to filter queries against. Supports wildcard '*'
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characters. Default patterns '*' for all options.
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:type pattern: :class:`basestring`
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:returns: Directory of configuration options matching given pattern
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:rtype: :class:`collections.defaultdict`
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"""
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if not isinstance(pattern, string_type):
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raise TypeError('pattern must be a string, not ' + repr(pattern))
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pattern_p = ctypes.create_string_buffer(binary(pattern))
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config_count = ctypes.c_size_t(0)
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configs = {}
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configs_p = library.MagickQueryConfigureOptions(pattern_p,
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ctypes.byref(config_count))
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cursor = 0
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while cursor < config_count.value:
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config = configs_p[cursor].value
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value = library.MagickQueryConfigureOption(config)
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configs[text(config)] = text(value.value)
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cursor += 1
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return configs
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def fonts(pattern='*'):
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"""
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Queries ImageMagick library for available fonts.
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Available fonts can be configured by defining `types.xml`,
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`type-ghostscript.xml`, or `type-windows.xml`.
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Use :func:`wand.version.configure_options` to locate system search path,
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and `resources <http://www.imagemagick.org/script/resources.php>`_
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article for defining xml file.
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Example: List all bold Helvetica fonts::
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>>> from wand.version import fonts
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>>> fonts('*Helvetica*Bold*')
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['Helvetica-Bold', 'Helvetica-Bold-Oblique', 'Helvetica-BoldOblique',
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'Helvetica-Narrow-Bold', 'Helvetica-Narrow-BoldOblique']
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:param pattern: A term to filter queries against. Supports wildcard '*'
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characters. Default patterns '*' for all options.
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:type pattern: :class:`basestring`
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:returns: Sequence of matching fonts
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:rtype: :class:`collections.Sequence`
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"""
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if not isinstance(pattern, string_type):
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raise TypeError('pattern must be a string, not ' + repr(pattern))
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pattern_p = ctypes.create_string_buffer(binary(pattern))
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number_fonts = ctypes.c_size_t(0)
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fonts = []
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fonts_p = library.MagickQueryFonts(pattern_p,
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ctypes.byref(number_fonts))
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cursor = 0
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while cursor < number_fonts.value:
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font = fonts_p[cursor].value
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fonts.append(text(font))
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cursor += 1
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return fonts
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def formats(pattern='*'):
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"""
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Queries ImageMagick library for supported formats.
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Example: List supported PNG formats::
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>>> from wand.version import formats
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>>> formats('PNG*')
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['PNG', 'PNG00', 'PNG8', 'PNG24', 'PNG32', 'PNG48', 'PNG64']
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:param pattern: A term to filter formats against. Supports wildcards '*'
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characters. Default pattern '*' for all formats.
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:type pattern: :class:`basestring`
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:returns: Sequence of matching formats
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:rtype: :class:`collections.Sequence`
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"""
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if not isinstance(pattern, string_type):
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raise TypeError('pattern must be a string, not ' + repr(pattern))
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pattern_p = ctypes.create_string_buffer(binary(pattern))
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number_formats = ctypes.c_size_t(0)
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formats = []
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formats_p = library.MagickQueryFormats(pattern_p,
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ctypes.byref(number_formats))
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cursor = 0
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while cursor < number_formats.value:
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value = formats_p[cursor].value
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formats.append(text(value))
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cursor += 1
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return formats
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if __doc__ is not None:
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__doc__ = __doc__.replace('0.0.0', VERSION)
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del libmagick
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if __name__ == '__main__':
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options = frozenset(sys.argv[1:])
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if '-v' in options or '--verbose' in options:
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print('Wand', VERSION)
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try:
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print(MAGICK_VERSION)
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except NameError:
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pass
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elif '--fonts' in options:
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for font in fonts():
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print(font)
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elif '--formats' in options:
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for supported_format in formats():
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print(supported_format)
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elif '--config' in options:
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config_options = configure_options()
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for key in config_options:
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print('{:24s}: {}'.format(key, config_options[key]))
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else:
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print(VERSION)
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