---
name: "repro"
section: "8"
platform: "linux"
package: "archlinux-repro"
version: "20260119-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/repro"
---

# repro(8)

reproducible builds utility

## NAME

repro - reproducible builds utility

## SYNOPSIS

*repro* \[options\] \<local-package\>

## DESCRIPTION

*repro* is a script to help with verifying and checking reproducibility of packages. It builds a [**systemd-nspawn**(1)](/systemd-nspawn/1.md) container with the Arch Linux bootstrap image to build packages in a clean chroot.

It takes a package as an argument and attempts to recreate the package with the information provided with [**BUILDINFO**(5)](/BUILDINFO/5.md). It will use the Arch Linux archive to fetch packages with the correct pkgver.

## OPTIONS

- **-h**

  Print help.

- **-d**

  When enabled [**diffoscope**(1)](/diffoscope/1.md) is run on the produced packages. DIFFOSCOPE can be set in [**repro.conf**(5)](/repro.conf/5.md) to change the diffoscope command.

- **-f**

  When enabled, repro check for a PKGBUILD file in the current working directory. This one is used to build the package instead of checking out a PKGBUILD from asp.

- **-n**

  When enabled makepkg runs with --nocheck.

- **-o**

  Set the output directory for the rebuilt packages. Defaults to ./build.

## SEE ALSO

[**makepkg**(8)](/makepkg/8.md) [**repro.conf**(5)](/repro.conf/5.md)