Title: Port of the week: diffoscope
       Author: Solène
       Date: 20 March 2021
       Tags: openbsd
       Description: 
       
       # Introduction
       
       Today I will introduce you to Diffoscope, a command line software to
       compare two directories.  I find it very useful when looking for
       changes between two extracted tarballs, I use it to compare changes
       between two version of a program to see what changed.
       
 (HTM) Diffoscope project website
       
       # How to install
       
       On OpenBSD you can use "pkg_add diffoscope", on other systems you may
       have a package for it, but it could be installed via pip too.
       
       # Usage
       
       It is really easy to use, as parameter give the two directories you
       want to compare, diffoscope will then show the uid, gid, permissions,
       modification/creation/access time changes between the two directories.
       
       The output on a simple example looks like the following:
       
       ```diffoscope output
       --- t/
       +++ a/
       │   --- t/foo
       ├── +++ a/foo
       │ @@ -1 +1 @@
       │ -hello
       │ +not hello
       │ ├── stat {}
       │ │ @@ -1 +1 @@
       │ │ -1043 492483 -rw-r--r-- 1 solene wheel 1973218 6 "Mar 20 18:31:08 2021" "Mar 20 18:31:14 2021" "Mar 20 18:31:14 2021" 16384 4 0 t/foo
       │ │ +1043 77762 -rw-r--r-- 1 solene wheel 314338 10 "Mar 20 18:31:08 2021" "Mar 20 18:31:18 2021" "Mar 20 18:31:18 2021" 16384 4 0 a/foo
       ```
       
       Diffoscope has many flags, if you want to only compare the directories
       content, you have to use "--exclude-directory-metadata yes".
       
       Using the same example as previously with --exclude-directory-metadata
       yes, it looks like:
       
       ```diffoscope output without directories metadata
       --- t/
       +++ a/
       │   --- t/foo
       ├── +++ a/foo
       │ @@ -1 +1 @@
       │ -hello
       │ +not hello
       ```