Jenkinsfile: add Ubuntu 20.04 "focal"

[DeeDeeG]

Hi folks,

I modeled this Pull Request off of #117 (c941ec3).

See also docker/docker-ce-packaging#443. This present PR, together with that PR I just mentioned, should address docker/for-linux#940 for Ubuntu Focal.

Please note that I signed off my commit with a pseudonym (my GitHub username), so this probably shouldn't actually be merged. Just a proof-of-concept implementation.

I aim to demonstrate this can be done, discover and troubleshoot any bugs that arise, and generally bring preparedness up so Docker can transition easily into packaging for Ubuntu 20.04 Focal Fossa, which comes out in a little over a month.

Best Regards.

[thaJeztah]

Looks like we need to set DEBIAN_FRONTEND=noninteractive, otherwise the build hangs, waiting for input 😞;

=> [stage-5 3/14] RUN apt-get update && apt-get install -y curl devscripts equivs git lsb-release 867.2s
=> => # questions will narrow this down by presenting a list of cities, representing
=> => # the time zones in which they are located.
=> => # 1. Africa 4. Australia 7. Atlantic 10. Pacific 13. Etc
=> => # 2. America 5. Arctic 8. Europe 11. SystemV
=> => # 3. Antarctica 6. Asia 9. Indian 12. US
=> => # Geographic area:

culprit looks to be devscripts, which installs tzdata;

Setting up tzdata (2019c-3ubuntu1) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 76.)
debconf: falling back to frontend: Readline
Configuring tzdata
------------------
Please select the geographic area in which you live. Subsequent configuration questions will narrow this down by presenting a list of cities, representing the time zones in which they are located.
1. Africa 2. America 3. Antarctica 4. Australia 5. Arctic 6. Asia 7. Atlantic 8. Europe 9. Indian 10. Pacific 11. SystemV 12. US 13. Etc
Geographic area:

Looks like devscripts on 20.04 added a huge number of additional packages;

devscripts on 18.04:

The following additional packages will be installed:
binutils binutils-common binutils-x86-64-linux-gnu dpkg-dev libbinutils libdpkg-perl libexpat1 libfile-homedir-perl libfile-which-perl libgdbm-compat4 libgdbm5 libmpdec2 libperl5.26 libpython3-stdlib libpython3.6-minimal
libpython3.6-stdlib libreadline7 libsqlite3-0 libssl1.1 make mime-support patch perl perl-modules-5.26 python3 python3-minimal python3.6 python3.6-minimal readline-common xz-utils
Suggested packages:
binutils-doc adequate autopkgtest bls-standalone bsd-mailx | mailx build-essential check-all-the-things cvs-buildpackage devscripts-el diffoscope disorderfs dose-extra duck faketime gnuplot how-can-i-help libauthen-sasl-perl
libfile-desktopentry-perl libnet-smtps-perl libterm-size-perl libtimedate-perl libyaml-syck-perl mozilla-devscripts mutt piuparts postgresql-client quilt ratt reprotest ssh-client svn-buildpackage w3m debian-keyring equivs
liblwp-protocol-https-perl libsoap-lite-perl gnupg | gnupg2 gcc | c-compiler git bzr gdbm-l10n make-doc ed diffutils-doc perl-doc libterm-readline-gnu-perl | libterm-readline-perl-perl python3-doc python3-tk python3-venv
python3.6-venv python3.6-doc binfmt-support readline-doc
Recommended packages:
at dctrl-tools dput | dupload fakeroot file gnupg | gnupg2 libdistro-info-perl libencode-locale-perl libgit-wrapper-perl liblist-compare-perl liburi-perl libwww-perl licensecheck lintian man-db patchutils python3-apt
python3-debian python3-magic python3-requests python3-unidiff python3-xdg strace unzip wdiff wget | curl build-essential gcc | c-compiler libalgorithm-merge-perl libfile-fcntllock-perl liblocale-gettext-perl netbase
The following NEW packages will be installed:
binutils binutils-common binutils-x86-64-linux-gnu devscripts dpkg-dev libbinutils libdpkg-perl libexpat1 libfile-homedir-perl libfile-which-perl libgdbm-compat4 libgdbm5 libmpdec2 libperl5.26 libpython3-stdlib
libpython3.6-minimal libpython3.6-stdlib libreadline7 libsqlite3-0 libssl1.1 make mime-support patch perl perl-modules-5.26 python3 python3-minimal python3.6 python3.6-minimal readline-common xz-utils

Devscripts on 20.04:

The following additional packages will be installed:
binutils binutils-common binutils-x86-64-linux-gnu ca-certificates dirmngr dpkg-dev fakeroot file gnupg gnupg-l10n gnupg-utils gpg gpg-agent gpg-wks-client gpg-wks-server gpgconf gpgsm libasn1-8-heimdal libassuan0
libb-hooks-op-check-perl libbinutils libclass-method-modifiers-perl libctf-nobfd0 libctf0 libdevel-callchecker-perl libdpkg-perl libdynaloader-functions-perl libencode-locale-perl libexpat1 libfakeroot libfile-homedir-perl
libfile-listing-perl libfile-which-perl libgdbm-compat4 libgdbm6 libgssapi3-heimdal libhcrypto4-heimdal libheimbase1-heimdal libheimntlm0-heimdal libhtml-parser-perl libhtml-tagset-perl libhtml-tree-perl libhttp-cookies-perl
libhttp-date-perl libhttp-message-perl libhttp-negotiate-perl libhx509-5-heimdal libimport-into-perl libio-html-perl libio-pty-perl libio-socket-ssl-perl libipc-run-perl libkrb5-26-heimdal libksba8 libldap-2.4-2 libldap-common
liblwp-mediatypes-perl liblwp-protocol-https-perl libmagic-mgc libmagic1 libmodule-runtime-perl libmoo-perl libmpdec2 libnet-http-perl libnet-ssleay-perl libnpth0 libparams-classify-perl libperl5.30 libpython3-stdlib
libpython3.8-minimal libpython3.8-stdlib libreadline8 libroken18-heimdal librole-tiny-perl libsasl2-2 libsasl2-modules-db libsqlite3-0 libssl1.1 libstrictures-perl libsub-quote-perl libtimedate-perl libtry-tiny-perl liburi-perl
libwind0-heimdal libwww-perl libwww-robotrules-perl make mime-support netbase openssl patch patchutils perl perl-modules-5.30 perl-openssl-defaults pinentry-curses python3 python3-minimal python3.8 python3.8-minimal
readline-common wdiff xz-utils
Suggested packages:
binutils-doc adequate autopkgtest bls-standalone bsd-mailx | mailx build-essential check-all-the-things cvs-buildpackage debhelper devscripts-el diffoscope disorderfs dose-extra duck faketime gnuplot how-can-i-help
libauthen-sasl-perl libdbd-pg-perl libfile-desktopentry-perl libnet-smtps-perl libterm-size-perl libyaml-syck-perl mozilla-devscripts mutt piuparts postgresql-client quilt ratt reprotest ssh-client svn-buildpackage w3m
debian-keyring equivs libsoap-lite-perl dbus-user-session libpam-systemd pinentry-gnome3 tor parcimonie xloadimage scdaemon gcc | c-compiler git bzr gdbm-l10n libdata-dump-perl libcrypt-ssleay-perl libscalar-number-perl
libbareword-filehandles-perl libindirect-perl libmultidimensional-perl libauthen-ntlm-perl make-doc ed diffutils-doc perl-doc libterm-readline-gnu-perl | libterm-readline-perl-perl libb-debug-perl liblocale-codes-perl
pinentry-doc python3-doc python3-tk python3-venv python3.8-venv python3.8-doc binfmt-support readline-doc wdiff-doc
Recommended packages:
at dctrl-tools dput | dupload libdistro-info-perl libgit-wrapper-perl libgitlab-api-v4-perl liblist-compare-perl libstring-shellquote-perl licensecheck lintian man-db python3-apt python3-debian python3-magic python3-requests
python3-unidiff python3-xdg strace unzip wget | curl build-essential gcc | c-compiler libalgorithm-merge-perl libfile-fcntllock-perl liblocale-gettext-perl libhtml-format-perl libclass-xsaccessor-perl libsub-name-perl
libsasl2-modules libdata-dump-perl libhtml-form-perl libhttp-daemon-perl libmailtools-perl
The following NEW packages will be installed:
binutils binutils-common binutils-x86-64-linux-gnu ca-certificates devscripts dirmngr dpkg-dev fakeroot file gnupg gnupg-l10n gnupg-utils gpg gpg-agent gpg-wks-client gpg-wks-server gpgconf gpgsm libasn1-8-heimdal libassuan0
libb-hooks-op-check-perl libbinutils libclass-method-modifiers-perl libctf-nobfd0 libctf0 libdevel-callchecker-perl libdpkg-perl libdynaloader-functions-perl libencode-locale-perl libexpat1 libfakeroot libfile-homedir-perl
libfile-listing-perl libfile-which-perl libgdbm-compat4 libgdbm6 libgssapi3-heimdal libhcrypto4-heimdal libheimbase1-heimdal libheimntlm0-heimdal libhtml-parser-perl libhtml-tagset-perl libhtml-tree-perl libhttp-cookies-perl
libhttp-date-perl libhttp-message-perl libhttp-negotiate-perl libhx509-5-heimdal libimport-into-perl libio-html-perl libio-pty-perl libio-socket-ssl-perl libipc-run-perl libkrb5-26-heimdal libksba8 libldap-2.4-2 libldap-common
liblwp-mediatypes-perl liblwp-protocol-https-perl libmagic-mgc libmagic1 libmodule-runtime-perl libmoo-perl libmpdec2 libnet-http-perl libnet-ssleay-perl libnpth0 libparams-classify-perl libperl5.30 libpython3-stdlib
libpython3.8-minimal libpython3.8-stdlib libreadline8 libroken18-heimdal librole-tiny-perl libsasl2-2 libsasl2-modules-db libsqlite3-0 libssl1.1 libstrictures-perl libsub-quote-perl libtimedate-perl libtry-tiny-perl liburi-perl
libwind0-heimdal libwww-perl libwww-robotrules-perl make mime-support netbase openssl patch patchutils perl perl-modules-5.30 perl-openssl-defaults pinentry-curses python3 python3-minimal python3.8 python3.8-minimal
readline-common wdiff xz-utils

We can probably add --no-install-recommends at least, or perhaps even switch to dpkg-dev instead (have to test)

diff in new packages (without `--no-install-recommends`);

diff --git a/devscripts-1804.txt b/devscripts-2004.txt
index 714531f..91f0783 100644
--- a/devscripts-1804.txt+++ b/devscripts-2004.txt@@ -1,32 +1,622 @@
The following NEW packages will be installed:
+at
binutils
binutils-common
binutils-x86-64-linux-gnu
+bsdmainutils+build-essential+ca-certificates+cpp+cpp-7+curl+dctrl-tools
devscripts
+diffstat+dirmngr+distro-info-data
dpkg-dev
+dput+fakeroot+file+g+++g++-7+gcc+gcc-7+gcc-7-base+gettext+gettext-base+git+git-man+gnupg+gnupg-l10n+gnupg-utils+gpg+gpg-agent+gpg-wks-client+gpg-wks-server+gpgconf+gpgsm+groff-base+intltool-debian+iso-codes+krb5-locales+less+libalgorithm-diff-perl+libalgorithm-diff-xs-perl+libalgorithm-merge-perl+libapt-inst2.0+libapt-pkg-perl+libarchive-zip-perl+libasan4+libasn1-8-heimdal+libassuan0+libatomic1+libauthen-sasl-perl+libb-hooks-endofscope-perl+libb-hooks-op-check-perl
libbinutils
+libbsd0+libc-dev-bin+libc6-dev+libcc1-0+libcgi-fast-perl+libcgi-pm-perl+libcilkrts5+libclass-accessor-perl+libclass-method-modifiers-perl+libclass-xsaccessor-perl+libclone-perl+libcroco3+libcurl3-gnutls+libcurl4+libdata-dump-perl+libdata-optlist-perl+libdevel-callchecker-perl+libdevel-globaldestruction-perl+libdigest-hmac-perl+libdistro-info-perl
libdpkg-perl
+libdynaloader-functions-perl+libedit2+libemail-valid-perl+libencode-locale-perl+liberror-perl
libexpat1
+libexporter-tiny-perl+libfakeroot+libfcgi-perl+libfile-basedir-perl+libfile-chdir-perl+libfile-fcntllock-perl
libfile-homedir-perl
+libfile-listing-perl
libfile-which-perl
+libfont-afm-perl+libgcc-7-dev
libgdbm-compat4
libgdbm5
+libgetopt-long-descriptive-perl+libgit-wrapper-perl+libglib2.0-0+libglib2.0-data+libgomp1+libgpgme11+libgssapi-krb5-2+libgssapi3-heimdal+libhcrypto4-heimdal+libheimbase1-heimdal+libheimntlm0-heimdal+libhtml-form-perl+libhtml-format-perl+libhtml-parser-perl+libhtml-tagset-perl+libhtml-tree-perl+libhttp-cookies-perl+libhttp-daemon-perl+libhttp-date-perl+libhttp-message-perl+libhttp-negotiate-perl+libhx509-5-heimdal+libicu60+libimport-into-perl+libio-html-perl+libio-pty-perl+libio-socket-inet6-perl+libio-socket-ssl-perl+libio-string-perl+libio-stringy-perl+libipc-run-perl+libipc-system-simple-perl+libisl19+libitm1+libk5crypto3+libkeyutils1+libkrb5-26-heimdal+libkrb5-3+libkrb5support0+libksba8+libldap-2.4-2+libldap-common+liblist-compare-perl+liblist-moreutils-perl+liblocale-gettext-perl+liblsan0+liblwp-mediatypes-perl+liblwp-protocol-https-perl+libmagic-mgc+libmagic1+libmailtools-perl+libmodule-implementation-perl+libmodule-runtime-perl+libmoo-perl+libmpc3
libmpdec2
+libmpfr6+libmpx2+libnamespace-clean-perl+libnet-dns-perl+libnet-domain-tld-perl+libnet-http-perl+libnet-ip-perl+libnet-smtp-ssl-perl+libnet-ssleay-perl+libnghttp2-14+libnpth0+libnumber-compare-perl+libnumber-range-perl+libpackage-stash-perl+libpackage-stash-xs-perl+libparams-classify-perl+libparams-util-perl+libparams-validate-perl+libparse-debianchangelog-perl+libpath-iterator-rule-perl+libpath-tiny-perl
libperl5.26
+libperlio-gzip-perl+libpipeline1+libpod-constants-perl+libpsl5
libpython3-stdlib
libpython3.6-minimal
libpython3.6-stdlib
+libquadmath0
libreadline7
+libregexp-pattern-license-perl+libroken18-heimdal+librole-tiny-perl+librtmp1+libsasl2-2+libsasl2-modules+libsasl2-modules-db+libsocket6-perl+libsort-key-perl+libsort-versions-perl
libsqlite3-0
+libssl1.0.0
libssl1.1
+libstdc++-7-dev+libstrictures-perl+libstring-copyright-perl+libstring-escape-perl+libsub-exporter-perl+libsub-exporter-progressive-perl+libsub-identify-perl+libsub-install-perl+libsub-name-perl+libsub-quote-perl+libtext-glob-perl+libtext-levenshtein-perl+libtimedate-perl+libtry-tiny-perl+libtsan0+libubsan0+libunicode-utf8-perl+libunwind8+liburi-perl+libvariable-magic-perl+libwind0-heimdal+libwww-perl+libwww-robotrules-perl+libx11-6+libx11-data+libxau6+libxcb1+libxdmcp6+libxext6+libxml-libxml-perl+libxml-namespacesupport-perl+libxml-parser-perl+libxml-sax-base-perl+libxml-sax-expat-perl+libxml-sax-perl+libxml-simple-perl+libxml2+libxmuu1+libyaml-0-2+libyaml-libyaml-perl+licensecheck+lintian+linux-libc-dev+lsb-release
make
+man-db+manpages+manpages-dev
mime-support
+multiarch-support+netbase+openssh-client+openssl
patch
+patchutils
perl
perl-modules-5.26
+perl-openssl-defaults+pinentry-curses+publicsuffix+python-apt-common
python3
+python3-apt+python3-certifi+python3-chardet+python3-debian+python3-gpg+python3-idna+python3-magic
python3-minimal
+python3-pkg-resources+python3-requests+python3-six+python3-unidiff+python3-urllib3+python3-xdg
python3.6
python3.6-minimal
readline-common
+shared-mime-info+strace+t1utils+ucf+unzip+wdiff+xauth+xdg-user-dirs+xz-utils+++The following NEW packages will be installed:+at+binutils+binutils-common+binutils-x86-64-linux-gnu+bsdmainutils+build-essential+ca-certificates+cpp+cpp-9+curl+dctrl-tools+devscripts+diffstat+dirmngr+distro-info-data+dpkg-dev+dput+fakeroot+file+g+++g++-9+gcc+gcc-9+gcc-9-base+gettext+gettext-base+git+git-man+gnupg+gnupg-l10n+gnupg-utils+gpg+gpg-agent+gpg-wks-client+gpg-wks-server+gpgconf+gpgsm+groff-base+intltool-debian+iso-codes+krb5-locales+less+libalgorithm-diff-perl+libalgorithm-diff-xs-perl+libalgorithm-merge-perl+libapt-pkg-perl+libapt-pkg6.0+libarchive-zip-perl+libarray-intspan-perl+libasan5+libasn1-8-heimdal+libassuan0+libasync-mergepoint-perl+libatomic1+libauthen-sasl-perl+libb-hooks-endofscope-perl+libb-hooks-op-check-perl+libberkeleydb-perl+libbinutils+libbrotli1+libbsd0+libc-dev-bin+libc6-dev+libcapture-tiny-perl+libcc1-0+libcgi-fast-perl+libcgi-pm-perl+libclass-accessor-perl+libclass-method-modifiers-perl+libclass-xsaccessor-perl+libclone-perl+libcommon-sense-perl+libconst-fast-perl+libcontextual-return-perl+libcroco3+libcrypt-dev+libctf-nobfd0+libctf0+libcurl3-gnutls+libcurl4+libdata-dump-perl+libdata-optlist-perl+libdevel-callchecker-perl+libdigest-bubblebabble-perl+libdigest-hmac-perl+libdistro-info-perl+libdpkg-perl+libdynaloader-functions-perl+libedit2+libemail-valid-perl+libencode-locale-perl+liberror-perl+libexpat1+libexporter-tiny-perl+libfakeroot+libfcgi-perl+libfile-basedir-perl+libfile-chdir-perl+libfile-fcntllock-perl+libfile-find-rule-perl+libfile-homedir-perl+libfile-listing-perl+libfile-which-perl+libfl2+libfont-afm-perl+libfont-ttf-perl+libfreezethaw-perl+libfuture-perl+libgcc-9-dev+libgdbm-compat4+libgdbm6+libgetopt-long-descriptive-perl+libgit-wrapper-perl+libgitlab-api-v4-perl+libglib2.0-0+libglib2.0-data+libgomp1+libgpgme11+libgssapi-krb5-2+libgssapi3-heimdal+libhash-fieldhash-perl+libhcrypto4-heimdal+libheimbase1-heimdal+libheimntlm0-heimdal+libhtml-form-perl+libhtml-format-perl+libhtml-parser-perl+libhtml-tagset-perl+libhtml-tree-perl+libhttp-cookies-perl+libhttp-daemon-perl+libhttp-date-perl+libhttp-message-perl+libhttp-negotiate-perl+libhttp-tiny-multipart-perl+libhx509-5-heimdal+libicu66+libidn11+libimport-into-perl+libio-async-loop-epoll-perl+libio-async-perl+libio-html-perl+libio-prompter-perl+libio-pty-perl+libio-socket-ssl-perl+libio-string-perl+libio-stringy-perl+libipc-run-perl+libipc-system-simple-perl+libisl22+libitm1+libjson-perl+libjson-xs-perl+libk5crypto3+libkeyutils1+libkrb5-26-heimdal+libkrb5-3+libkrb5support0+libksba8+libldap-2.4-2+libldap-common+liblinux-epoll-perl+liblist-compare-perl+liblist-moreutils-perl+liblist-someutils-perl+liblist-someutils-xs-perl+liblocale-gettext-perl+liblog-any-adapter-screen-perl+liblog-any-perl+liblsan0+liblwp-mediatypes-perl+liblwp-protocol-https-perl+libmagic-mgc+libmagic1+libmailtools-perl+libmldbm-perl+libmodule-implementation-perl+libmodule-runtime-perl+libmoo-perl+libmoox-aliases-perl+libmoox-struct-perl+libmpc3+libmpdec2+libmpfr6+libnamespace-clean-perl+libnet-dns-perl+libnet-dns-sec-perl+libnet-domain-tld-perl+libnet-http-perl+libnet-ip-perl+libnet-libidn-perl+libnet-smtp-ssl-perl+libnet-ssleay-perl+libnghttp2-14+libnpth0+libnumber-compare-perl+libnumber-range-perl+libobject-id-perl+libpackage-stash-perl+libpackage-stash-xs-perl+libparams-classify-perl+libparams-util-perl+libparams-validate-perl+libpath-iterator-rule-perl+libpath-tiny-perl+libperl4-corelibs-perl+libperl5.30+libperlio-gzip-perl+libpipeline1+libpod-constants-perl+libpsl5+libpython3-stdlib+libpython3.8-minimal+libpython3.8-stdlib+libquadmath0+libre-engine-re2-perl+libre2-5+libreadline8+libreadonly-perl+libref-util-perl+libref-util-xs-perl+libregexp-pattern-license-perl+libregexp-pattern-perl+libroken18-heimdal+librole-tiny-perl+librtmp1+libsasl2-2+libsasl2-modules+libsasl2-modules-db+libsereal-decoder-perl+libsereal-encoder-perl+libsereal-perl+libsort-key-perl+libsort-versions-perl+libsqlite3-0+libssh-4+libssl1.1+libstdc++-9-dev+libstrictures-perl+libstring-copyright-perl+libstring-escape-perl+libstring-shellquote-perl+libstruct-dumb-perl+libsub-exporter-perl+libsub-exporter-progressive-perl+libsub-identify-perl+libsub-install-perl+libsub-name-perl+libsub-quote-perl+libterm-readkey-perl+libtest-fatal-perl+libtest-refcount-perl+libtext-glob-perl+libtext-levenshtein-perl+libtimedate-perl+libtry-tiny-perl+libtsan0+libtype-tiny-perl+libtype-tiny-xs-perl+libtypes-serialiser-perl+libubsan1+libuchardet0+libunicode-utf8-perl+libunwind8+liburi-perl+libvariable-magic-perl+libwant-perl+libwind0-heimdal+libwww-perl+libwww-robotrules-perl+libx11-6+libx11-data+libxau6+libxcb1+libxdmcp6+libxext6+libxml-libxml-perl+libxml-namespacesupport-perl+libxml-parser-perl+libxml-sax-base-perl+libxml-sax-expat-perl+libxml-sax-perl+libxml2+libxmuu1+libyaml-0-2+libyaml-libyaml-perl+licensecheck+lintian+linux-libc-dev+lsb-release+make+man-db+manpages+manpages-dev+mime-support+netbase+openssh-client+openssl+patch+patchutils+perl+perl-modules-5.30+perl-openssl-defaults+pinentry-curses+publicsuffix+python-apt-common+python3+python3-apt+python3-certifi+python3-chardet+python3-debian+python3-gpg+python3-idna+python3-magic+python3-minimal+python3-pkg-resources+python3-requests+python3-six+python3-unidiff+python3-urllib3+python3-xdg+python3.8+python3.8-minimal+readline-common+shared-mime-info+strace+t1utils+tzdata+ucf+unzip+wdiff+xauth+xdg-user-dirs
xz-utils

diff in new packages (with `--no-install-recommends`)

diff --git a/devscripts-1804.txt b/devscripts-2004.txt
index 714531f..b73a789 100644
--- a/devscripts-1804.txt+++ b/devscripts-2004.txt@@ -2,31 +2,104 @@ The following NEW packages will be installed:
binutils
binutils-common
binutils-x86-64-linux-gnu
+ca-certificates
devscripts
+dirmngr
dpkg-dev
+fakeroot+file+gnupg+gnupg-l10n+gnupg-utils+gpg+gpg-agent+gpg-wks-client+gpg-wks-server+gpgconf+gpgsm+libasn1-8-heimdal+libassuan0+libb-hooks-op-check-perl
libbinutils
+libclass-method-modifiers-perl+libctf-nobfd0+libctf0+libdevel-callchecker-perl
libdpkg-perl
+libdynaloader-functions-perl+libencode-locale-perl
libexpat1
+libfakeroot
libfile-homedir-perl
+libfile-listing-perl
libfile-which-perl
libgdbm-compat4
-libgdbm5+libgdbm6+libgssapi3-heimdal+libhcrypto4-heimdal+libheimbase1-heimdal+libheimntlm0-heimdal+libhtml-parser-perl+libhtml-tagset-perl+libhtml-tree-perl+libhttp-cookies-perl+libhttp-date-perl+libhttp-message-perl+libhttp-negotiate-perl+libhx509-5-heimdal+libimport-into-perl+libio-html-perl+libio-pty-perl+libio-socket-ssl-perl+libipc-run-perl+libkrb5-26-heimdal+libksba8+libldap-2.4-2+libldap-common+liblwp-mediatypes-perl+liblwp-protocol-https-perl+libmagic-mgc+libmagic1+libmodule-runtime-perl+libmoo-perl
libmpdec2
-libperl5.26+libnet-http-perl+libnet-ssleay-perl+libnpth0+libparams-classify-perl+libperl5.30
libpython3-stdlib
-libpython3.6-minimal-libpython3.6-stdlib-libreadline7+libpython3.8-minimal+libpython3.8-stdlib+libreadline8+libroken18-heimdal+librole-tiny-perl+libsasl2-2+libsasl2-modules-db
libsqlite3-0
libssl1.1
+libstrictures-perl+libsub-quote-perl+libtimedate-perl+libtry-tiny-perl+liburi-perl+libwind0-heimdal+libwww-perl+libwww-robotrules-perl
make
mime-support
+netbase+openssl
patch
+patchutils
perl
-perl-modules-5.26+perl-modules-5.30+perl-openssl-defaults+pinentry-curses
python3
python3-minimal
-python3.6-python3.6-minimal+python3.8+python3.8-minimal
readline-common
+wdiff
xz-utils

[thaJeztah]

ok, looks like devscripts is needed, because it's the only package that has mk-build-deps 😞. Using --no-install-recommends works though; I'll open a PR

[silvin-lubecki]

Thank you @DeeDeeG for this PR 👍 ! It was carried by #152 so this one will be closed.