I am trying to compare two large lists of file paths (about 14,000 lines each) to identify which entries in each list are missing from the other, and while I can get CMake to do it I must be doing it the wrong way because the results are hideously slow.
I currently generate two files with the paths and then read them in as lists, using LIST() commands to peform STREQUAL tests. I was hoping to just run a cmake -E command to get a diff output and parse my results in from that, but as far as I can tell CMake's compare_files command doesn't provide diff style output? I can just call diff on platforms that have it, but that's not reliable on Windows. Does CMake have any ability to rapidly provide the results of a diff between two text files or large lists of strings? Cheers, and thanks. CY
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