Maya Python - 将 zip 文件嵌入到 Maya 文件中？
Maya Python - Embed zip file into maya file?
这是另一个堆栈线程的建议，我终于回来了。这是关于如何将工具嵌入到 Maya 文件中的讨论的一部分。
You can write the whole thing as a python package, zip it, then stuff the binary contents of the zip file into a fileInfo. When you need to code, look for it in the user's $MAYA_APP_DIR; if there's no zip, write the contents of the fileInfo to disk as a zip and then insert the zip into sys.path
来源讨论是：
python copy scripts into script
和
到目前为止编程还不错，但我想我遇到了障碍。当我尝试这样做时：
with open("..directory/myZip.zip","rb") as file:
cmds.fileInfo("myZip", file.read())
..然后我..
print cmds.fileInfo("myZip",q=1)
我明白了
[u'PK[=15=]3[=15=]44']
当将 zip 文件作为文本文档阅读时，第一行乱码的错误翻译。
如何将我的 zip 文件作为二进制文件嵌入到我的 Maya 文件中？
====================
更新：
Maya 不喜欢以直接读取 utf-8 编码的 zip 文件的方式写入文件。我发现了多种方法可以将其变成可以写入的可接受字符串，但解码回文件似乎没有用。我现在看到 Theodox 的建议是将其写入二进制文件并将其放入 fileInfo 节点中。
如何编码、存储然后解码以便稍后写入文件？
如果我要转换为二进制，例如：
' '.join(format(ord(x), 'b') for x in line)
我需要什么代码才能将其转换回原始的 utf-8 zip 信息？
找到答案了。堆栈溢出的好脚本。我必须编码为 'string_escape'，这是我在试图找出整个字符情况时发现的。但无论如何，您打开 zip，编码为 'string_escape'，将其写入 fileInfo，然后在获取以将其写回 zip 之前，将其解码回来。
Convert binary to ASCII and vice versa
import maya.cmds as cmds
import binascii
def text_to_bits(text, encoding='utf-8', errors='surrogatepass'):
bits = bin(int(binascii.hexlify(text.encode(encoding, errors)), 16))[2:]
return bits.zfill(8 * ((len(bits) + 7) // 8))
def text_from_bits(bits, encoding='utf-8', errors='surrogatepass'):
n = int(bits, 2)
return int2bytes(n).decode(encoding, errors)
def int2bytes(i):
hex_string = '%x' % i
n = len(hex_string)
return binascii.unhexlify(hex_string.zfill(n + (n & 1)))
然后你可以
with open("..\maya\scripts/test.zip","rb") as thing:
texty = text_to_bits(thing.read().encode('string_escape'))
cmds.fileInfo("binaryZip",texty)
...稍后
with open("..\maya\scripts/test_2.zip","wb") as thing:
texty = cmds.fileInfo("binaryZip",q=1)
thing.write( text_from_bits( texty ).decode('string_escape') )
这似乎有效..到目前为止..
您可以在这里找到相关代码：
http://tech-artists.org/forum/showthread.php?4161-Maya-API-Singleton-Nodes&highlight=mayapersist
相关位是
import base64
encoded = base64.b64encode(value)
decoded = base64.b64decode(encoded)
基本上是相同的想法，除了使用 base64 模块而不是 binascii。任何将任意字符流转换为 ascii-safe 表示的方法都可以正常工作，只要您使用可逆方法：您需要注意的潜在问题是数据块中看起来像 maya 的字符闭引号 - 开引号 int 文件信息在 MA 文件中会很混乱。
此示例使用 YAML 来执行任意 key-value 对，但该部分与存储二进制内容无关。我已经将这种技术用于相当大的数据（如果我记得的话高达 640k），但我不知道它是否有你可以在 Maya 中存储的上限
认为我会 post 为任何想要采用这种方法的人提供最终产品。我试着做一些损坏检查，这样一个坏的 zip 就不会在机器之间传递。这就是所有检查散列的目的。
def writeTimeFull(tl):
import TimeFull
#reload(TimeFull)
with open(TimeFull.__file__.replace(".pyc",".py"),"r") as file:
cmds.scriptNode( tl.scriptConnection[1][0], e=1, bs=file.read() )
cmds.expression("spark_timeliner_activator",
e=1,s='if (Spark_Timeliner.ShowTimeliner == 1)\n'
'{\n'
'\tsetAttr Spark_Timeliner.ShowTimeliner 0;\n'
'\tpython \"Timeliner.InitTimeliner()\";\n'
'}',
o="Spark_Timeliner",ae=1,uc=all)
def checkHash(zipPath,hash1,hash2,hash3):
check = False
hashes = [hash1,hash2,hash3]
for ii, hash in enumerate(hashes):
if hash == hashes[(ii+1)%3]:
hashes[(ii+2)%3] = hashes[ii]
check = True
if check:
if md5(zipPath) == hashes[0]:
return [zipPath,hashes[0],hashes[1],hashes[2]]
else:
cmds.warning("Hash checks and/or zip are corrupted. Attain toolbox_fix.zip, put it in scripts folder and restart.")
return []
#this writes the zip file to the local users space
def saveOutZip(filename):
if os.path.isfile(filename):
if not os.path.isfile(filename.replace('_pkg','_'+__version__)):
os.rename(filename,filename.replace('_pkg','_'+__version__))
with open(filename,"w") as zipFile:
zipInfo = cmds.fileInfo("zipInfo1",q=1)[0]
zipHash_1 = cmds.fileInfo("zipHash1",q=1)[0]
zipHash_2 = cmds.fileInfo("zipHash2",q=1)[0]
zipHash_3 = cmds.fileInfo("zipHash3",q=1)[0]
zipFile.write( base64.b64decode(zipInfo) )
if checkHash(filename,zipHash_1,zipHash_2,zipHash_3):
cmds.fileInfo("zipInfo2",zipInfo)
return filename
with open(filename,"w") as zipFile:
zipInfo = cmds.fileInfo("zipInfo2",q=1)[0]
zipHash_1 = cmds.fileInfo("zipHash1",q=1)[0]
zipHash_2 = cmds.fileInfo("zipHash2",q=1)[0]
zipHash_3 = cmds.fileInfo("zipHash3",q=1)[0]
zipFile.write( base64.b64decode(zipInfo) )
if checkHash(filename,zipHash_1,zipHash_2,zipHash_3):
cmds.fileInfo("zipInfo1",zipInfo)
return filename
return False
#this writes the local zip to this file
def loadInZip(filename):
zipResults = []
for ii in range(0,10):
with open(filename,"r") as theRead:
zipResults.append([base64.b64encode(theRead.read())]+checkHash(filename,md5(filename),md5(filename),md5(filename)))
if ii>0 and zipResults[ii]==zipResults[ii-1]:
cmds.fileInfo("zipInfo1",zipResults[ii][0])
cmds.fileInfo("zipInfo2",zipResults[ii-1][0])
cmds.fileInfo("zipHash1",zipResults[ii][2])
cmds.fileInfo("zipHash2",zipResults[ii][3])
cmds.fileInfo("zipHash3",zipResults[ii][4])
return True
#file check
#
def md5(fname):
import hashlib
hash = hashlib.md5()
with open(fname, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
hash.update(chunk)
return hash.hexdigest()
filename = path+'/toolbox_pkg.zip'
zipPaths = [path+'/toolbox_update.zip',
path+'/toolbox_fix.zip',
path+'/toolbox_'+__version__+'.zip',
filename]
zipPaths_exist = [os.path.isfile(zipPath) for zipPath in zipPaths ]
if any(zipPaths_exist[:2]):
if zipPaths_exist[0]:
cmds.warning('Timeliner update present. Forcing file to update version')
if zipPaths_exist[2]:
os.remove(zipPaths[3])
elif os.path.isfile(zipPaths[3]):
os.rename(zipPaths[3], zipPaths[2])
os.rename(zipPaths[0],zipPaths[3])
if zipPaths_exist[1]:
os.remove(zipPaths[1])
else:
cmds.warning('Timeliner fix present. Replacing file to the fix version.')
if os.path.isfile(zipPaths[3]):
os.remove(zipPaths[3])
os.rename(zipPaths[1],zipPaths[3])
loadInZip(filename)
if not cmds.fileInfo("zipInfo1",q=1) and not cmds.fileInfo("zipInfo2",q=1):
loadInZip(filename)
if not os.path.isfile(filename):
saveOutZip(filename)
sys.path.append(filename)
import Timeliner
Timeliner.InitTimeliner(theVers=__version__)
if not any(zipPaths[:2]):
if __version__ > Timeliner.__version__:
cmds.warning('Saving out newer version of timeliner to local machine. Restart Maya to access latest version.')
saveOutZip(filename)
elif __version__ < Timeliner.__version__:
cmds.warning('Timeliner on machine is newer than file version. Saving machine version over timeliner in file.')
loadInZip(filename)
__version__ = Timeliner.__version__
if __name__ != "__main__":
tl = getTimeliner()
writeTimeFull(tl)
这是另一个堆栈线程的建议，我终于回来了。这是关于如何将工具嵌入到 Maya 文件中的讨论的一部分。
You can write the whole thing as a python package, zip it, then stuff the binary contents of the zip file into a fileInfo. When you need to code, look for it in the user's $MAYA_APP_DIR; if there's no zip, write the contents of the fileInfo to disk as a zip and then insert the zip into sys.path
来源讨论是：
python copy scripts into script
和
到目前为止编程还不错，但我想我遇到了障碍。当我尝试这样做时：
with open("..directory/myZip.zip","rb") as file:
cmds.fileInfo("myZip", file.read())
..然后我..
print cmds.fileInfo("myZip",q=1)
我明白了
[u'PK[=15=]3[=15=]44']
当将 zip 文件作为文本文档阅读时，第一行乱码的错误翻译。
如何将我的 zip 文件作为二进制文件嵌入到我的 Maya 文件中？
====================
更新： Maya 不喜欢以直接读取 utf-8 编码的 zip 文件的方式写入文件。我发现了多种方法可以将其变成可以写入的可接受字符串，但解码回文件似乎没有用。我现在看到 Theodox 的建议是将其写入二进制文件并将其放入 fileInfo 节点中。
如何编码、存储然后解码以便稍后写入文件？
如果我要转换为二进制，例如：
' '.join(format(ord(x), 'b') for x in line)
我需要什么代码才能将其转换回原始的 utf-8 zip 信息？
找到答案了。堆栈溢出的好脚本。我必须编码为 'string_escape'，这是我在试图找出整个字符情况时发现的。但无论如何，您打开 zip，编码为 'string_escape'，将其写入 fileInfo，然后在获取以将其写回 zip 之前，将其解码回来。
Convert binary to ASCII and vice versa
import maya.cmds as cmds
import binascii
def text_to_bits(text, encoding='utf-8', errors='surrogatepass'):
bits = bin(int(binascii.hexlify(text.encode(encoding, errors)), 16))[2:]
return bits.zfill(8 * ((len(bits) + 7) // 8))
def text_from_bits(bits, encoding='utf-8', errors='surrogatepass'):
n = int(bits, 2)
return int2bytes(n).decode(encoding, errors)
def int2bytes(i):
hex_string = '%x' % i
n = len(hex_string)
return binascii.unhexlify(hex_string.zfill(n + (n & 1)))
然后你可以
with open("..\maya\scripts/test.zip","rb") as thing:
texty = text_to_bits(thing.read().encode('string_escape'))
cmds.fileInfo("binaryZip",texty)
...稍后
with open("..\maya\scripts/test_2.zip","wb") as thing:
texty = cmds.fileInfo("binaryZip",q=1)
thing.write( text_from_bits( texty ).decode('string_escape') )
这似乎有效..到目前为止..
您可以在这里找到相关代码：
http://tech-artists.org/forum/showthread.php?4161-Maya-API-Singleton-Nodes&highlight=mayapersist
相关位是
import base64
encoded = base64.b64encode(value)
decoded = base64.b64decode(encoded)
基本上是相同的想法，除了使用 base64 模块而不是 binascii。任何将任意字符流转换为 ascii-safe 表示的方法都可以正常工作，只要您使用可逆方法：您需要注意的潜在问题是数据块中看起来像 maya 的字符闭引号 - 开引号 int 文件信息在 MA 文件中会很混乱。
此示例使用 YAML 来执行任意 key-value 对，但该部分与存储二进制内容无关。我已经将这种技术用于相当大的数据（如果我记得的话高达 640k），但我不知道它是否有你可以在 Maya 中存储的上限
认为我会 post 为任何想要采用这种方法的人提供最终产品。我试着做一些损坏检查，这样一个坏的 zip 就不会在机器之间传递。这就是所有检查散列的目的。
def writeTimeFull(tl):
import TimeFull
#reload(TimeFull)
with open(TimeFull.__file__.replace(".pyc",".py"),"r") as file:
cmds.scriptNode( tl.scriptConnection[1][0], e=1, bs=file.read() )
cmds.expression("spark_timeliner_activator",
e=1,s='if (Spark_Timeliner.ShowTimeliner == 1)\n'
'{\n'
'\tsetAttr Spark_Timeliner.ShowTimeliner 0;\n'
'\tpython \"Timeliner.InitTimeliner()\";\n'
'}',
o="Spark_Timeliner",ae=1,uc=all)
def checkHash(zipPath,hash1,hash2,hash3):
check = False
hashes = [hash1,hash2,hash3]
for ii, hash in enumerate(hashes):
if hash == hashes[(ii+1)%3]:
hashes[(ii+2)%3] = hashes[ii]
check = True
if check:
if md5(zipPath) == hashes[0]:
return [zipPath,hashes[0],hashes[1],hashes[2]]
else:
cmds.warning("Hash checks and/or zip are corrupted. Attain toolbox_fix.zip, put it in scripts folder and restart.")
return []
#this writes the zip file to the local users space
def saveOutZip(filename):
if os.path.isfile(filename):
if not os.path.isfile(filename.replace('_pkg','_'+__version__)):
os.rename(filename,filename.replace('_pkg','_'+__version__))
with open(filename,"w") as zipFile:
zipInfo = cmds.fileInfo("zipInfo1",q=1)[0]
zipHash_1 = cmds.fileInfo("zipHash1",q=1)[0]
zipHash_2 = cmds.fileInfo("zipHash2",q=1)[0]
zipHash_3 = cmds.fileInfo("zipHash3",q=1)[0]
zipFile.write( base64.b64decode(zipInfo) )
if checkHash(filename,zipHash_1,zipHash_2,zipHash_3):
cmds.fileInfo("zipInfo2",zipInfo)
return filename
with open(filename,"w") as zipFile:
zipInfo = cmds.fileInfo("zipInfo2",q=1)[0]
zipHash_1 = cmds.fileInfo("zipHash1",q=1)[0]
zipHash_2 = cmds.fileInfo("zipHash2",q=1)[0]
zipHash_3 = cmds.fileInfo("zipHash3",q=1)[0]
zipFile.write( base64.b64decode(zipInfo) )
if checkHash(filename,zipHash_1,zipHash_2,zipHash_3):
cmds.fileInfo("zipInfo1",zipInfo)
return filename
return False
#this writes the local zip to this file
def loadInZip(filename):
zipResults = []
for ii in range(0,10):
with open(filename,"r") as theRead:
zipResults.append([base64.b64encode(theRead.read())]+checkHash(filename,md5(filename),md5(filename),md5(filename)))
if ii>0 and zipResults[ii]==zipResults[ii-1]:
cmds.fileInfo("zipInfo1",zipResults[ii][0])
cmds.fileInfo("zipInfo2",zipResults[ii-1][0])
cmds.fileInfo("zipHash1",zipResults[ii][2])
cmds.fileInfo("zipHash2",zipResults[ii][3])
cmds.fileInfo("zipHash3",zipResults[ii][4])
return True
#file check
#
def md5(fname):
import hashlib
hash = hashlib.md5()
with open(fname, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
hash.update(chunk)
return hash.hexdigest()
filename = path+'/toolbox_pkg.zip'
zipPaths = [path+'/toolbox_update.zip',
path+'/toolbox_fix.zip',
path+'/toolbox_'+__version__+'.zip',
filename]
zipPaths_exist = [os.path.isfile(zipPath) for zipPath in zipPaths ]
if any(zipPaths_exist[:2]):
if zipPaths_exist[0]:
cmds.warning('Timeliner update present. Forcing file to update version')
if zipPaths_exist[2]:
os.remove(zipPaths[3])
elif os.path.isfile(zipPaths[3]):
os.rename(zipPaths[3], zipPaths[2])
os.rename(zipPaths[0],zipPaths[3])
if zipPaths_exist[1]:
os.remove(zipPaths[1])
else:
cmds.warning('Timeliner fix present. Replacing file to the fix version.')
if os.path.isfile(zipPaths[3]):
os.remove(zipPaths[3])
os.rename(zipPaths[1],zipPaths[3])
loadInZip(filename)
if not cmds.fileInfo("zipInfo1",q=1) and not cmds.fileInfo("zipInfo2",q=1):
loadInZip(filename)
if not os.path.isfile(filename):
saveOutZip(filename)
sys.path.append(filename)
import Timeliner
Timeliner.InitTimeliner(theVers=__version__)
if not any(zipPaths[:2]):
if __version__ > Timeliner.__version__:
cmds.warning('Saving out newer version of timeliner to local machine. Restart Maya to access latest version.')
saveOutZip(filename)
elif __version__ < Timeliner.__version__:
cmds.warning('Timeliner on machine is newer than file version. Saving machine version over timeliner in file.')
loadInZip(filename)
__version__ = Timeliner.__version__
if __name__ != "__main__":
tl = getTimeliner()
writeTimeFull(tl)