Efficient change analysis in poly-lingual corpus hierarchies

A non-transitory computer-readable memory storing a plurality of instructions executable by one or more processors, the plurality of instructions comprising instructions that when executed by the one or more processors cause the one or more processors to perform processing comprising:

• obtaining directory level checksums and rolling checksums for a source set of code in a first data structure;
• obtaining a target set of code in a second data structure;
• calculating directory level checksums for the target set of code;
• calculating rolling checksums for the target set of code based on the directory level checksums for the target set of code;
• comparing the directory level checksums and the rolling checksums calculated for the target set of code against the directory level checksums and the rolling checksums calculated for the source set of code;
• identifying a location of change data of the target set of code at directory level within the second data structure based on the comparison of the directory level checksums and the rolling checksums calculated for the target set of code against the directory level checksums and the rolling checksums obtained for the source set of code;
• and
• outputting the location of the change data.

A system comprising:

• one or more processors;
• and
• a memory coupled to the one or more processors, the memory storing a plurality of instructions executable by the one or more processors, the plurality of instructions comprising instructions that when executed by the one or more processors cause the one or more processors to perform processing comprising:
• obtaining directory level checksums and rolling checksums for a source set of code in a first data structure;
• obtaining a target set of code in a second data structure;
• calculating directory level checksums for the target set of code;
• calculating rolling checksums for the target set of code based on the directory level checksums for the target set of code;
• comparing the directory level checksums and the rolling checksums calculated for the target set of code against the directory level checksums and the rolling checksums obtained for the source set of code;
• identifying a location of change data of the target set of code at directory level within the second data structure based on the comparison of the directory level checksums and the rolling checksums calculated for the target set of code against the directory level checksums and the rolling checksums calculated for the source set of code;
• and
• outputting the location of the change data.