So myself and another coworker were both writing julia code that basically did the same thing as a specific GNU find command.
For my implementation, I used a regex for the filename and walkdir to find the files, something like this:
for (root, dirs, files) in walkdir(".") #This is how I handled not going into directories with false information that I didn't want to parse later deleteat!(dirs,findall(x->"MisleadingDirectoryName",dirs)) for file in files if match(MATCH_REGEX, file).match #do input end end end
Whereas my coworker did
files = glob("MATCH_GLOB", ".") for file in files if occursin("MisleadingDirectoryName", file) && continue #do input end end
Given this, his code finishes on a huge directory structure in 20 seconds, whereas mine takes about 20 minutes. He has been coding in julia a lot longer so his code is way more elegant, but my question is, why does it run so much faster? Is regex just that bad? Is it because walkdir is slow?