This Go program scans a specified directory and its subdirectories to find image files that have identical decoded bitmaps, and writes the output to the standard output stream.
findupic [ -csv ] [ -error-log=<logfile> ] <directory>...
where directory is the path to the directory to scan for image files.
If -csv flag is added, this program prints the report in CSV format
to the standard output stream. If -error-log flag is added, this
program writes the errors into the error log file named logfile.
This program does not stop when it finds an erroneous image file, but writes its file name into the error log file and continues finding duplicates.
This program returns 1 as an error exit status when it detects any
erroneous files, while returns 0 as the success exit status.
findupic /path/to/images
This command will scan the /path/to/images directory and descendants
for image files, and write the output to the standard output stream.
Two or more directories can be specified:
findupic dir1 dir2
This command will scan two directories dir1 and dir2, as well as
their descendants for images files. Duplicates will be reported
regardless of which directory tree the image file resides in.
The program writes the paths of duplicate image files to the standard output stream following the SHA-256 hash of the decoded bitmap:
$ ./findupic.exe .
Duplicate images with hash c22c...:
dir1/image_B2.jpg
image_B1.jpg
Duplicate images with hash 92e4...:
dir1/image_A3.jpg
image_A1.jpg
image_A2.jpg
In CSV output mode, the same report will look like:
SHA256,Path
c22c...,dir1\image_A3.jpg
c22c...,image_A1.jpg
c22c...,image_A2.jpg
92e4...,dir1\image_B2.jpg
92e4...,dir2\image_B1.jpg
Note that in either mode SHA256 will be printed in full length.
In this project directory, execute the following command to compile this program and generate an executable file:
go build
You need Go tool chain installed.
This program is generated using an AI language model and is intended for educational purposes only. Since the majority of the work, even including this document, is written by the AI language model and has been modified and adapted for this specific task; the author of this program does not claim copyright ownership for any part of the program. The program is provided as-is, without any warranty or guarantee of its fitness for any particular purpose. Use of the program is at your own risk.
This program is released under the Unlicense. You are free to use,
modify, and distribute the program without restriction. The program is
provided as-is, without any warranty or guarantee of its fitness for
any particular purpose. Please see the UNLICENSE
file for the full text of the Unlicense.