From a4b7239d7161c33a30c31ae16909c84883758d9b Mon Sep 17 00:00:00 2001
From: Gioele Barabucci <gioele@svario.it>
Date: Tue, 15 Mar 2022 11:08:14 +0100
Subject: [PATCH] mmdebstrap: Show APT's dependency trace when in debug mode

A dependency trace is a powerful tool to debug issues related to
APT's selection of packages, especially in custom mode.

Thus it makes sense to ask APT to output a dependency trace when
`mmdebstrap` is run with the `--debug` flag.
---
 mmdebstrap | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mmdebstrap b/mmdebstrap
index 4c062c5..c826ede 100755
--- a/mmdebstrap
+++ b/mmdebstrap
@@ -2085,6 +2085,9 @@ sub run_download() {
                     'apt-get',
                     '--yes',
                     '-oApt::Get::Download-Only=true',
+                    ($verbosity_level >= 3) ? '-oDebug::pkgProblemResolver=true' : (),
+                    ($verbosity_level >= 3) ? '-oDebug::pkgDepCache::Marker=1' : (),
+                    ($verbosity_level >= 3) ? '-oDebug::pkgDepCache::AutoInstall=1' : (),
                     $options->{dryrun} ? '-oAPT::Get::Simulate=true' : (),
                     'install'
                 ],