Search all julia files for regexes

walk_julia_files.jl

using Printf, Base.Iterators

root = "/home/$(ENV["USER"])/.julia/dev/"
# root = "/home/$(ENV["USER"])/.julia/packages/"
const regs = [
    r"(\w+)\s?->\w+\(\1\)[,\b]", # Finds x->f(x)
    r"\w+\s?==\s?(true|false)",  # Finds x == true
]

function findem(root, regs; extension=".jl", pad=80)
    for (root, dirs, files) in walkdir(root)
        for file in files
            splitext(file)[2] == extension || continue
            fullpath = joinpath(root, file)
            for (ln, line) in enumerate(eachline(fullpath))
                for reg in regs
                    for m in eachmatch(reg, line)
                        println(rpad(fullpath * ":$ln ", pad), m.match)
                    end
                end
            end
        end
    end
end

findem(root,regs)