listMissingFrames_nuke_sd

#################################
#list missing frames
#by Sean Danischevsky 2015
#select a read or write node and copy a list of missing frames
#TODO: would like it to work by finding first and last
#rendered frames, not relying on node's start, end.
#would like to work on multiple reads/writes and proxy
#ignore files like /mnt/projects/oc/work/seand/000/060/nuke/render/precomp/rainBottomB/v006/oc_sc000_sh060_rainBottomB_v006.1088.png.2977.tmp
#and .nk files
#can I use glob/
import nuke
import os
#copy to clipboard
from PySide import QtGui

#testing= True
testing= False

def list_missing_frames():
    
    missingFiles = []
    completeFileName = ""
    
    # first check if a node is selected and if so if it is a read node
    selectedNodes = nuke.selectedNodes()
    
    # either nothing or too much is selected
    if (len(selectedNodes) != 1):
        nuke.message("Please select a single node!")
        return 
        
    #now we are sure one read node is selected, so go on.
    
    node = selectedNodes[0]
    
    try:
        fileNameLong = node['file'].getValue()
        #print fileNameLong
        if node.Class() == 'Write' and not node['use_limit'].value():
            startFrame = int(nuke.root()['first_frame'].value())
            #print startFrame
            endFrame = int(nuke.root()['last_frame'].value())
            #print startFrame        
        else:
            startFrame = int(node['first'].getValue())
        #print startFrame
            endFrame = int(node['last'].getValue())
        #print startFrame

    except:
        return nuke.message("Please select a node with a file knob - e.g. a read node!")
    
    # split the long file name with path to its subsections    
    pathName, fileNameShort = os.path.split(fileNameLong)

    splitFileName = fileNameShort.split(".")
    
    if (len(splitFileName) != 3):
        nuke.message("File does not have the format name.number.ext.\nSearch the missing frames yourself :)")
        return
        
    fileName = splitFileName[0]
    filePaddingOrg = splitFileName[1]
    filePaddingLength = len((filePaddingOrg) % 0)
    fileExtension = splitFileName[2]
   
    
    # search for missing files in the sequence 
    for i in range(startFrame, endFrame+ 1):
        # first build the string of the padded frameNumbers
        frameNumber = str(i)        
        
        while(len(frameNumber) < filePaddingLength):
            frameNumber = "0" + frameNumber
        fileNameAndExt= fileName+ "."+ frameNumber+ "."+ fileExtension
        completeFileName = os.path.join(pathName, fileNameAndExt)
        #print completeFileName
        if not os.path.isfile(completeFileName):
            missingFiles.append(i)
    
    if(len(missingFiles) == 0):
        nuke.message("No missing files in range %d-%d!"%(startFrame,endFrame))
        return
            
    cleanedUpMissingFiles = str(nuke.FrameRanges(missingFiles))
    print cleanedUpMissingFiles
    nuke.message("In the range: " + str(startFrame) + "-" + str(endFrame) + "\nthe following files are missing:\n\n" + cleanedUpMissingFiles+'\n(Copied to clipboard).')
    clipboard = QtGui.QApplication.clipboard()
    clipboard.setText(cleanedUpMissingFiles) # set clipboard 
    return

#runs when testing:
if __name__ == "__main__":
    list_missing_frames()