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add version to features info block

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This commit is contained in:
nulano 2019-10-12 14:29:10 +01:00 committed by Andrew Murray
parent 11a4f1135d
commit a324f4a466
8 changed files with 73 additions and 27 deletions
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4
Tests/test_file_icns.py
View File

@ -2,14 +2,14 @@ import io
import sys
import pytest
from PIL import IcnsImagePlugin, Image
from PIL import IcnsImagePlugin, Image, features
from .helper import assert_image_equal, assert_image_similar
# sample icon file
TEST_FILE = "Tests/images/pillow.icns"
ENABLE_JPEG2K = hasattr(Image.core, "jp2klib_version")
ENABLE_JPEG2K = features.check_codec("jpg_2000")
def test_sanity():

4
Tests/test_file_jpeg.py
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@ -3,7 +3,7 @@ import re
from io import BytesIO
import pytest
from PIL import ExifTags, Image, ImageFile, JpegImagePlugin
from PIL import ExifTags, Image, ImageFile, JpegImagePlugin, features
from .helper import (
assert_image,
@ -41,7 +41,7 @@ class TestFileJpeg:
def test_sanity(self):
# internal version number
assert re.search(r"\d+\.\d+$", Image.core.jpeglib_version)
assert re.search(r"\d+\.\d+$", features.version_codec("jpg"))
with Image.open(TEST_FILE) as im:
im.load()

4
Tests/test_file_jpeg2k.py
View File

@ -2,7 +2,7 @@ import re
from io import BytesIO
import pytest
from PIL import Image, ImageFile, Jpeg2KImagePlugin
from PIL import Image, ImageFile, Jpeg2KImagePlugin, features
from .helper import (
assert_image_equal,
@ -35,7 +35,7 @@ def roundtrip(im, **options):
def test_sanity():
# Internal version number
assert re.search(r"\d+\.\d+\.\d+$", Image.core.jp2klib_version)
assert re.search(r"\d+\.\d+\.\d+$", features.version_codec("jpg_2000"))
with Image.open("Tests/images/test-card-lossless.jp2") as im:
px = im.load()

4
Tests/test_file_png.py
View File

@ -3,7 +3,7 @@ import zlib
from io import BytesIO
import pytest
from PIL import Image, ImageFile, PngImagePlugin
from PIL import Image, ImageFile, PngImagePlugin, features
from .helper import (
PillowLeakTestCase,
@ -73,7 +73,7 @@ class TestFilePng:
def test_sanity(self, tmp_path):
# internal version number
assert re.search(r"\d+\.\d+\.\d+(\.\d+)?$", Image.core.zlib_version)
assert re.search(r"\d+\.\d+\.\d+(\.\d+)?$", features.version_codec("zlib"))
test_file = str(tmp_path / "temp.png")

4
Tests/test_imagecms.py
View File

@ -4,7 +4,7 @@ import re
from io import BytesIO
import pytest
from PIL import Image, ImageMode
from PIL import Image, ImageMode, features
from .helper import assert_image, assert_image_equal, assert_image_similar, hopper
@ -46,7 +46,7 @@ def test_sanity():
assert list(map(type, v)) == [str, str, str, str]
# internal version number
assert re.search(r"\d+\.\d+$", ImageCms.core.littlecms_version)
assert re.search(r"\d+\.\d+$", features.version_module("littlecms2"))
skip_missing()
i = ImageCms.profileToProfile(hopper(), SRGB, SRGB)

12
Tests/test_imagefont.py
View File

@ -7,7 +7,7 @@ import sys
from io import BytesIO
import pytest
from PIL import Image, ImageDraw, ImageFont
from PIL import Image, ImageDraw, ImageFont, features
from .helper import (
assert_image_equal,
@ -40,7 +40,7 @@ class TestImageFont:
@classmethod
def setup_class(self):
freetype = distutils.version.StrictVersion(ImageFont.core.freetype2_version)
freetype = distutils.version.StrictVersion(features.version_module("freetype2"))
self.metrics = self.METRICS["Default"]
for conditions, metrics in self.METRICS.items():
@ -67,7 +67,7 @@ class TestImageFont:
)
def test_sanity(self):
assert re.search(r"\d+\.\d+\.\d+$", ImageFont.core.freetype2_version)
assert re.search(r"\d+\.\d+\.\d+$", features.version_module("freetype2"))
def test_font_properties(self):
ttf = self.get_font()
@ -619,7 +619,7 @@ class TestImageFont:
def test_variation_get(self):
font = self.get_font()
freetype = distutils.version.StrictVersion(ImageFont.core.freetype2_version)
freetype = distutils.version.StrictVersion(features.version_module("freetype2"))
if freetype < "2.9.1":
with pytest.raises(NotImplementedError):
font.get_variation_names()
@ -691,7 +691,7 @@ class TestImageFont:
def test_variation_set_by_name(self):
font = self.get_font()
freetype = distutils.version.StrictVersion(ImageFont.core.freetype2_version)
freetype = distutils.version.StrictVersion(features.version_module("freetype2"))
if freetype < "2.9.1":
with pytest.raises(NotImplementedError):
font.set_variation_by_name("Bold")
@ -715,7 +715,7 @@ class TestImageFont:
def test_variation_set_by_axes(self):
font = self.get_font()
freetype = distutils.version.StrictVersion(ImageFont.core.freetype2_version)
freetype = distutils.version.StrictVersion(features.version_module("freetype2"))
if freetype < "2.9.1":
with pytest.raises(NotImplementedError):
font.set_variation_by_axes([100])

4
src/PIL/IcnsImagePlugin.py
View File

@ -23,10 +23,10 @@ import subprocess
import sys
import tempfile
from PIL import Image, ImageFile, PngImagePlugin
from PIL import Image, ImageFile, PngImagePlugin, features
from PIL._binary import i8
enable_jpeg2k = hasattr(Image.core, "jp2klib_version")
enable_jpeg2k = features.check_codec("jpg_2000")
if enable_jpeg2k:
from PIL import Jpeg2KImagePlugin

64
src/PIL/features.py
View File

@ -8,11 +8,11 @@ import PIL
from . import Image
modules = {
"pil": "PIL._imaging",
"tkinter": "PIL._tkinter_finder",
"freetype2": "PIL._imagingft",
"littlecms2": "PIL._imagingcms",
"webp": "PIL._webp",
"pil": ("PIL._imaging", None),
"tkinter": ("PIL._tkinter_finder", None),
"freetype2": ("PIL._imagingft", "freetype2"),
"littlecms2": ("PIL._imagingcms", "littlecms"),
"webp": ("PIL._webp", None),
}
@ -27,7 +27,7 @@ def check_module(feature):
if not (feature in modules):
raise ValueError("Unknown module %s" % feature)
module = modules[feature]
module, lib = modules[feature]
try:
__import__(module)
@ -36,6 +36,20 @@ def check_module(feature):
return False
def version_module(feature):
if not check_module(feature):
return None
module, lib = modules[feature]
if lib is None:
return None
attr = lib + "_version"
return getattr(__import__(module, fromlist=[attr]), attr)
def get_supported_modules():
"""
:returns: A list of all supported modules.
@ -43,7 +57,12 @@ def get_supported_modules():
return [f for f in modules if check_module(f)]
codecs = {"jpg": "jpeg", "jpg_2000": "jpeg2k", "zlib": "zip", "libtiff": "libtiff"}
codecs = {
"jpg": ("jpeg", "jpeglib"),
"jpg_2000": ("jpeg2k", "jp2klib"),
"zlib": ("zip", "zlib"),
"libtiff": ("libtiff", "libtiff"),
}
def check_codec(feature):
@ -57,11 +76,25 @@ def check_codec(feature):
if feature not in codecs:
raise ValueError("Unknown codec %s" % feature)
codec = codecs[feature]
codec, lib = codecs[feature]
return codec + "_encoder" in dir(Image.core)
def version_codec(feature):
if not check_codec(feature):
return None
codec, lib = codecs[feature]
version = getattr(Image.core, lib + "_version")
if feature == "libtiff":
return version.split("\n")[0].split("Version ")[1]
return version
def get_supported_codecs():
"""
:returns: A list of all supported codecs.
@ -125,6 +158,14 @@ def check(feature):
return False
def version(feature):
if feature in modules:
return version_module(feature)
if feature in codecs:
return version_codec(feature)
return None
def get_supported():
"""
:returns: A list of all supported modules, features, and codecs.
@ -187,7 +228,12 @@ def pilinfo(out=None, supported_formats=True):
("xcb", "XCB (X protocol)"),
]:
if check(name):
print("---", feature, "support ok", file=out)
v = version(name)
if v is not None:
support = "ok (version {})".format(v)
else:
support = "ok"
print("---", feature, "support", support, file=out)
else:
print("***", feature, "support not installed", file=out)
print("-" * 68, file=out)