reattribute.py

#!/usr/bin/env python3
from libfurc import fox5

LICENSE_FC_BY_SA = 0
LICENSE_FC0 = 1
LICENSE_FC_BY_NC_SA = 2
LICENSE_FC_ND_NC_SA = 3
LICENSE_FC_PRIVATE_SA = 4
LICENSE_FC_BY_X_SA = 5
LICENSE_DEP = 101

DEP_CS = "Dragon's Eye Productions/Catnip Studios"

def getSafeLicense(fro, to):
    #If license is compatible to be overwritten
    if fro in [LICENSE_FC0, None]:
        return to
    
    #Else, return the compatible license
    return fro

def reAttribute(fox,
                license = None, author = None,
                overwriteLicense = False,
                overwriteAuthor = False,
                overwriteLicenseForce = False
    ):
    #If author is a string, convert it to a list
    if type(author) == str:
        author = [author]
    
    for obj in fox.body:
        #If license is set but the object has no license, or overwriteLicense is set
        if license != None and (obj["License"] == None or overwriteLicense == True):
            obj["License"] = getSafeLicense(obj["License"], license)
        
        #If author is set
        if author != None:
            #And authors is none or empty
            if obj["Authors"] == None or len(obj["Authors"]) == 0 or overwriteAuthor == True:
                obj["Authors"] = author
            #Else, append the author
            else:
                obj["Authors"] = obj["Authors"] + author
        
        #If the license is DEP, ensure the DEP CS is in the Authors
        if license == LICENSE_DEP:
            #Only if it isn't in the authors table
            if obj["Authors"] == None:
                obj["Authors"] = [DEP_CS]
            else:
                obj["Authors"].append(DEP_CS)
    

fox = fox5.load("somepatch.fox")

reAttribute(fox, LICENSE_FC_BY_SA, ["Vargskelethor", "Fecal Funny Co."])

fox5.dump(fox, "somepatch.fox")

LICENSE_CS_BY_SA = 101

DEP_CS = "Dragon's Eye Productions/Catnip Studios"

It would be useful to be able to sign derivative works appropriately, with some safeguards added. Thinking about the following rules:

1. An object with the FC-DEP/CS-BY-SA license cannot be relicensed (when called from a command line or something, code will be code).
2. An object with the FC-DEP/CS-BY-SA license must have "Dragon's Eye Productions/Catnip Studios" as the original author, preserving any existing authors after it and any additional authors after that. The exception being if DEP/CS is listed in any other form as an "additional author", see #3.
3. "Dragon's Eye Productions/Catnip Studios" should only ever be the original author and should not be listed again. This applies to all authors, in that they should only be listed once and duplicate instances should be removed, prioritizing the earliest instance.

It also seems like the License and Author attributes are actually within obj["Properties"], not at the root. Maybe I'm missing something or calling it incorrectly.