duperig

README

duperig

Find copied and modified (duped and rigged) files between two related folder hierarchies which are contained in git repositories. Prints current file SHA-256 along with its latest matching commit hash as seen in the git repository of the first folder specified in the argument list (if available).

Requirements

• Some version of git which isn't ancient. Tested with git 2.17.1.
• Go 1.13.

Installation

go get -u github.com/MMulthaupt/duperig

Usage

git checkout the correct revisions of the projects in which you want to compare folder hierarchies, then use the command like so:

duperig path/to/folder/from/which/files/were/copied path/to/folder/to/which/files/were/copied

Example

duperig projects/thingamajig_base/src/main/java/com/pany projects/thingamajig_special/src/main/java/com/pany
DIFF: services/Foo.java: 7418a5b686 (Commit: a7e5433603) vs dd232c048b (Commit: 119bb3cb41)
DIFF: data/Result.java: 711528c9c2 (Commit: a70d2cc30f) vs 2503ca3aeb (Commit: 47a05b7ada)
DIFF: data/Data.java: 123456789ab (Commit: 98765434567) vs 2637485985 (NO MATCHING COMMIT)
DUPE: mail/MailClient.java @ 3ec54907a4
DUPE: save/Database.java @ 5c346980d6
There are 5 coinciding paths. Out of these, 2 have matching files and 3 have differing files.
Out of the 3 different files, 1 files have modifications unknown to the repository at /home/u/projects/thingamajig_base.

Folder structure at projects/thingamajig_special/src/main/java/com/pany has 5 files with paths coninciding with 5 other files under projects/thingamajig_base/src/main/java/com/pany. Out of those 5 files, 2 are exact duplicates. The remaining 3 files differ. From the differing files, 2 have commit hashes in projects/thingamajig_base. However, the file projects/thingamajig_base/src/main/java/com/data/Data.java has changes unique to projects/thingamajig_special.

Status

Working, but slow and unoptimized. Not suitable for projects above 1 GB.

TODO

See issues.