crystal-duplicate-finder

Command line utility written in Crystal to find duplicate files. This program does not delete any files. It generates a list of duplicates in a specific directory (use -d command line switch) for you to review and deal with them as you see fit.

Compile and Run

Currently Crystal only supports *nix operating systems, including Linux and OSX. There is no compiler available for Windows.

git clone https://github.com/rustomax/crystal-duplicate-finder.git
cd crystal-duplicate-finder
shards install
crystal build src/cdf.cr -o cdf --release
./cdf [arguments]

Usage

Identify duplicate files in a directory
Usage: command [arguments]

-d path, --dir path         Dir where to search for duplicates (default = current dir)
-o file, --output file      Output file (default = duplicates.out)
                            Paths for -d and -o can be relative or absolute
-p regex, --pattern regex   Search pattern (default = search all files)
                            ex: -p "*.txt" search text files
                            ex: -p "*.{doc*,ppt*,xls*}" search MS Office files
-z,       --zero            Include zero-length files in analysis (disabled by default)
-n,       --hidden          Include hidden files in analysis (disabled by default)
-q,       --quiet           Hide progress messages
-h,       --help            Show this help

Sample run

Recursively list all files in the directory test_files including zero-length (-z) and hidden (-n) files and save the results in report.out

$ ./cdf -d test_files -n -z -o report.out

Step 1/5: Getting the list of files               8 total files
Step 2/5: Narrowing down the list (by options)    7 candidates found
Step 3/5: Narrowing down the list (by size)       5 candidates found
Step 4/5: Identifying duplicates (may take a bit) 4 duplicates found
Step 5/5: Writing results to output file          saved to 'report.out'

Summary
Duplicate groups : 2
Duplicate files  : 4
Analysis completed in 00m 00s

$ cat report.out
Duplicate files
Duplicate Group (hash = F5513387824453638074):
   ==> test_files/.hidden_file
   ==> test_files/a_subdir/file4.dat

Duplicate Group (hash = F15935516853591187496):
   ==> test_files/file1.txt
   ==> test_files/file3d.txt

Contributing

1. Fork it ( https://github.com/rustomax/crystal-duplicate-finder/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• [rustomax] Max Skybin - creator, maintainer