Merge branch 'debian_parsers' into 'master'

Debian parsers

See merge request gitlab-org/gitlab!44029

app/services/packages/debian/extract_deb_metadata_service.rb

+# frozen_string_literal: true
+
+module Packages
+  module Debian
+    # Returns .deb file metadata
+    class ExtractDebMetadataService
+      CommandFailedError = Class.new(StandardError)
+
+      def initialize(file_path)
+        @file_path = file_path
+      end
+
+      def execute
+        unless success?
+          raise CommandFailedError, "The `#{cmd}` command failed (status: #{result.status}) with the following error:\n#{result.stderr}"
+        end
+
+        sections = ParseDebian822Service.new(result.stdout).execute
+
+        sections.each_value.first
+      end
+
+      private
+
+      def cmd
+        @cmd ||= begin
+          dpkg_deb_path = Gitlab.config.packages.dpkg_deb_path
+          [dpkg_deb_path, '--field', @file_path]
+        end
+      end
+
+      def result
+        @result ||= Gitlab::Popen.popen_with_detail(cmd)
+      end
+
+      def success?
+        result.status&.exitstatus == 0
+      end
+    end
+  end
+end

app/services/packages/debian/parse_debian822_service.rb

+# frozen_string_literal: true
+
+module Packages
+  module Debian
+    # Parse String as Debian RFC822 control data format
+    # https://manpages.debian.org/unstable/dpkg-dev/deb822.5
+    class ParseDebian822Service
+      InvalidDebian822Error = Class.new(StandardError)
+
+      def initialize(input)
+        @input = input
+      end
+
+      def execute
+        output = {}
+        @input.each_line('', chomp: true) do |block|
+          section = {}
+          section_name, field = nil
+          block.each_line(chomp: true) do |line|
+            next if comment_line?(line)
+
+            if continuation_line?(line)
+              raise InvalidDebian822Error, "Parse error. Unexpected continuation line" if field.nil?
+
+              section[field] += "\n"
+              section[field] += line[1..] unless paragraph_separator?(line)
+            elsif match = match_section_line(line)
+              section_name = match[:name] if section_name.nil?
+              field = match[:field].to_sym
+
+              raise InvalidDebian822Error, "Duplicate field '#{field}' in section '#{section_name}'" if section.include?(field)
+
+              section[field] = match[:value]
+            else
+              raise InvalidDebian822Error, "Parse error on line #{line}"
+            end
+          end
+
+          raise InvalidDebian822Error, "Duplicate section '#{section_name}'" if output[section_name]
+
+          output[section_name] = section
+        end
+
+        output
+      end
+
+      private
+
+      def comment_line?(line)
+        line.match?(/^#/)
+      end
+
+      def continuation_line?(line)
+        line.match?(/^ /)
+      end
+
+      def paragraph_separator?(line)
+        line == ' .'
+      end
+
+      def match_section_line(line)
+        line.match(/(?<name>(?<field>^\S+):\s*(?<value>.*))/)
+      end
+    end
+  end
+end

changelogs/unreleased/debian_parsers.yml

+---
+title: Debian RFC822 and .deb metadata extractor
+merge_request: 44029
+author: Mathieu Parent
+type: added

config/gitlab.yml.example

@@ -317,6 +317,7 @@ production: &base
   ## Packages (maven repository, npm registry, etc...)
   packages:
     enabled: true
+    dpkg_deb_path: /usr/bin/dpkg-deb
     # The location where build packages are stored (default: shared/packages).
     # storage_path: shared/packages
     object_store:

config/initializers/1_settings.rb

@@ -355,6 +355,7 @@ Settings.uploads['object_store']['remote_directory'] ||= 'uploads'
 #
 Settings['packages'] ||= Settingslogic.new({})
 Settings.packages['enabled']       = true if Settings.packages['enabled'].nil?
+Settings.packages['dpkg_deb_path'] = '/usr/bin/dpkg-deb' if Settings.packages['dpkg_deb_path'].nil?
 Settings.packages['storage_path']  = Settings.absolute(Settings.packages['storage_path'] || File.join(Settings.shared['path'], "packages"))
 Settings.packages['object_store']  = ObjectStoreSettings.legacy_parse(Settings.packages['object_store'])
 

spec/fixtures/packages/debian/README.md

+# Build a Debian package
+
+Install the build dependencies:
+
+```shell
+sudo apt install dpkg-dev
+```
+
+Go to the `spec/fixtures/packages/debian` directory and clean up old files:
+
+```shell
+cd spec/fixtures/packages/debian
+rm -v *.tar.* *.dsc *.deb *.udeb *.buildinfo *.changes
+```
+
+Go to the package source directory and build:
+
+```shell
+cd sample
+dpkg-buildpackage --no-sign
+```

spec/fixtures/packages/debian/libsample0_1.2.3~alpha2-1_amd64.deb

-empty

spec/fixtures/packages/debian/sample/debian/.gitignore

+.debhelper
+debhelper-build-stamp
+files
+*.substvars
+libsample0
+sample-dev
+sample-udeb
+

spec/fixtures/packages/debian/sample/debian/changelog

+sample (1.2.3~alpha2) unstable; urgency=medium
+
+  * Initial release
+
+ -- John Doe <john.doe@example.com>  Thu, 01 Oct 2020 09:35:15 +0200

spec/fixtures/packages/debian/sample/debian/control

+Source: sample
+Priority: optional
+Maintainer: John Doe <john.doe@example.com>
+Build-Depends: debhelper-compat (= 13)
+Standards-Version: 4.5.0
+Section: libs
+Homepage: https://gitlab.com/
+#Vcs-Browser: https://salsa.debian.org/debian/sample-1.2.3
+#Vcs-Git: https://salsa.debian.org/debian/sample-1.2.3.git
+Rules-Requires-Root: no
+
+Package: sample-dev
+Section: libdevel
+Architecture: any
+Multi-Arch: same
+Depends: libsample0 (= ${binary:Version}), ${misc:Depends}
+Description: Some mostly empty developpement files
+ Used in GitLab tests.
+ .
+ Testing another paragraph.
+
+Package: libsample0
+Architecture: any
+Multi-Arch: same
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: Some mostly empty lib
+ Used in GitLab tests.
+ .
+ Testing another paragraph.
+
+Package: sample-udeb
+Package-Type: udeb
+Architecture: any
+Depends: installed-base
+Description: Some mostly empty udeb

spec/fixtures/packages/debian/sample/debian/rules

+#!/usr/bin/make -f
+%:
+	dh $@
+override_dh_gencontrol:
+	dh_gencontrol -psample-dev -- -v'1.2.3~binary'
+	dh_gencontrol --remaining-packages

spec/fixtures/packages/debian/sample/debian/source/format

+3.0 (native)

spec/fixtures/packages/debian/sample_1.2.3~alpha2.dsc

+Format: 3.0 (native)
+Source: sample
+Binary: sample-dev, libsample0, sample-udeb
+Architecture: any
+Version: 1.2.3~alpha2
+Maintainer: John Doe <john.doe@example.com>
+Homepage: https://gitlab.com/
+Standards-Version: 4.5.0
+Build-Depends: debhelper-compat (= 13)
+Package-List:
+ libsample0 deb libs optional arch=any
+ sample-dev deb libdevel optional arch=any
+ sample-udeb udeb libs optional arch=any
+Checksums-Sha1:
+ 5f8bba5574eb01ac3b1f5e2988e8c29307788236 864 sample_1.2.3~alpha2.tar.xz
+Checksums-Sha256:
+ b5a599e88e7cbdda3bde808160a21ba1dd1ec76b2ec8d4912aae769648d68362 864 sample_1.2.3~alpha2.tar.xz
+Files:
+ d79b34f58f61ff4ad696d9bd0b8daa68 864 sample_1.2.3~alpha2.tar.xz

spec/fixtures/packages/debian/sample_1.2.3~alpha2_amd64.buildinfo

+Format: 1.0
+Source: sample
+Binary: libsample0 sample-dev sample-udeb
+Architecture: amd64 source
+Version: 1.2.3~alpha2
+Checksums-Md5:
+ 3b0817804f669e16cdefac583ad88f0e 671 sample_1.2.3~alpha2.dsc
+ fb0842b21adc44207996296fe14439dd 1124 libsample0_1.2.3~alpha2_amd64.deb
+ d2afbd28e4d74430d22f9504e18bfdf5 1164 sample-dev_1.2.3~binary_amd64.deb
+ 72b1dd7d98229e2fb0355feda1d3a165 736 sample-udeb_1.2.3~alpha2_amd64.udeb
+Checksums-Sha1:
+ 32ecbd674f0bfd310df68484d87752490685a8d6 671 sample_1.2.3~alpha2.dsc
+ 5248b95600e85bfe7f63c0dfce330a75f5777366 1124 libsample0_1.2.3~alpha2_amd64.deb
+ f81e4f66c8c6bb899653a3340c157965ee69634f 1164 sample-dev_1.2.3~binary_amd64.deb
+ e42e8f2fe04ed1bb73b44a187674480d0e49dcba 736 sample-udeb_1.2.3~alpha2_amd64.udeb
+Checksums-Sha256:
+ 844f79825b7e8aaa191e514b58a81f9ac1e58e2180134b0c9512fa66d896d7ba 671 sample_1.2.3~alpha2.dsc
+ 1c383a525bfcba619c7305ccd106d61db501a6bbaf0003bf8d0c429fbdb7fcc1 1124 libsample0_1.2.3~alpha2_amd64.deb
+ 9fbeee2191ce4dab5288fad5ecac1bd369f58fef9a992a880eadf0caf25f086d 1164 sample-dev_1.2.3~binary_amd64.deb
+ 2b0c152b3ab4cc07663350424de972c2b7621d69fe6df2e0b94308a191e4632f 736 sample-udeb_1.2.3~alpha2_amd64.udeb
+Build-Origin: Debian
+Build-Architecture: amd64
+Build-Date: Thu, 08 Oct 2020 15:15:24 +0200
+Build-Tainted-By:
+ merged-usr-via-symlinks
+ usr-local-has-includes
+ usr-local-has-libraries
+ usr-local-has-programs
+Installed-Build-Depends:
+ autoconf (= 2.69-11.1),
+ automake (= 1:1.16.2-4),
+ autopoint (= 0.19.8.1-10),
+ autotools-dev (= 20180224.1),
+ base-files (= 11),
+ base-passwd (= 3.5.47),
+ bash (= 5.0-7),
+ binutils (= 2.35.1-1),
+ binutils-common (= 2.35.1-1),
+ binutils-x86-64-linux-gnu (= 2.35.1-1),
+ bsdextrautils (= 2.36-3+b1),
+ bsdmainutils (= 12.1.7),
+ bsdutils (= 1:2.36-3+b1),
+ build-essential (= 12.8),
+ bzip2 (= 1.0.8-4),
+ calendar (= 12.1.7),
+ coreutils (= 8.32-4+b1),
+ cpp (= 4:10.2.0-1),
+ cpp-10 (= 10.2.0-9),
+ cpp-9 (= 9.3.0-18),
+ dash (= 0.5.10.2-7),
+ debconf (= 1.5.74),
+ debhelper (= 13.2.1),
+ debianutils (= 4.11.2),
+ dh-autoreconf (= 19),
+ dh-strip-nondeterminism (= 1.9.0-1),
+ diffutils (= 1:3.7-3),
+ dpkg (= 1.20.5),
+ dpkg-dev (= 1.20.5),
+ dwz (= 0.13-5),
+ file (= 1:5.38-5),
+ findutils (= 4.7.0-1),
+ g++ (= 4:10.2.0-1),
+ g++-10 (= 10.2.0-9),
+ gcc (= 4:10.2.0-1),
+ gcc-10 (= 10.2.0-9),
+ gcc-10-base (= 10.2.0-9),
+ gcc-9 (= 9.3.0-18),
+ gcc-9-base (= 9.3.0-18),
+ gettext (= 0.19.8.1-10),
+ gettext-base (= 0.19.8.1-10),
+ grep (= 3.4-1),
+ groff-base (= 1.22.4-5),
+ gzip (= 1.10-2),
+ hostname (= 3.23),
+ init-system-helpers (= 1.58),
+ intltool-debian (= 0.35.0+20060710.5),
+ libacl1 (= 2.2.53-8),
+ libarchive-zip-perl (= 1.68-1),
+ libasan5 (= 9.3.0-18),
+ libasan6 (= 10.2.0-9),
+ libatomic1 (= 10.2.0-9),
+ libattr1 (= 1:2.4.48-5),
+ libaudit-common (= 1:2.8.5-3),
+ libaudit1 (= 1:2.8.5-3+b1),
+ libbinutils (= 2.35.1-1),
+ libblkid1 (= 2.36-3+b1),
+ libbsd0 (= 0.10.0-1),
+ libbz2-1.0 (= 1.0.8-4),
+ libc-bin (= 2.31-3),
+ libc-dev-bin (= 2.31-3),
+ libc6 (= 2.31-3),
+ libc6-dev (= 2.31-3),
+ libcap-ng0 (= 0.7.9-2.2),
+ libcc1-0 (= 10.2.0-9),
+ libcroco3 (= 0.6.13-1),
+ libcrypt-dev (= 1:4.4.17-1),
+ libcrypt1 (= 1:4.4.17-1),
+ libctf-nobfd0 (= 2.35.1-1),
+ libctf0 (= 2.35.1-1),
+ libdb5.3 (= 5.3.28+dfsg1-0.6),
+ libdebconfclient0 (= 0.254),
+ libdebhelper-perl (= 13.2.1),
+ libdpkg-perl (= 1.20.5),
+ libelf1 (= 0.181-1),
+ libffi7 (= 3.3-4),
+ libfile-stripnondeterminism-perl (= 1.9.0-1),
+ libgcc-10-dev (= 10.2.0-9),
+ libgcc-9-dev (= 9.3.0-18),
+ libgcc-s1 (= 10.2.0-9),
+ libgcrypt20 (= 1.8.6-2),
+ libgdbm-compat4 (= 1.18.1-5.1),
+ libgdbm6 (= 1.18.1-5.1),
+ libglib2.0-0 (= 2.66.0-2),
+ libgmp10 (= 2:6.2.0+dfsg-6),
+ libgomp1 (= 10.2.0-9),
+ libgpg-error0 (= 1.38-2),
+ libicu67 (= 67.1-4),
+ libisl22 (= 0.22.1-1),
+ libitm1 (= 10.2.0-9),
+ liblsan0 (= 10.2.0-9),
+ liblz4-1 (= 1.9.2-2),
+ liblzma5 (= 5.2.4-1+b1),
+ libmagic-mgc (= 1:5.38-5),
+ libmagic1 (= 1:5.38-5),
+ libmount1 (= 2.36-3+b1),
+ libmpc3 (= 1.2.0-1),
+ libmpfr6 (= 4.1.0-3),
+ libpam-modules (= 1.3.1-5),
+ libpam-modules-bin (= 1.3.1-5),
+ libpam-runtime (= 1.3.1-5),
+ libpam0g (= 1.3.1-5),
+ libpcre2-8-0 (= 10.34-7),
+ libpcre3 (= 2:8.39-13),
+ libperl5.30 (= 5.30.3-4),
+ libpipeline1 (= 1.5.3-1),
+ libquadmath0 (= 10.2.0-9),
+ libseccomp2 (= 2.4.4-1),
+ libselinux1 (= 3.1-2),
+ libsigsegv2 (= 2.12-2),
+ libsmartcols1 (= 2.36-3+b1),
+ libstdc++-10-dev (= 10.2.0-9),
+ libstdc++6 (= 10.2.0-9),
+ libsub-override-perl (= 0.09-2),
+ libsystemd0 (= 246.6-1),
+ libtinfo6 (= 6.2+20200918-1),
+ libtool (= 2.4.6-14),
+ libtsan0 (= 10.2.0-9),
+ libubsan1 (= 10.2.0-9),
+ libuchardet0 (= 0.0.7-1),
+ libudev1 (= 246.6-1),
+ libunistring2 (= 0.9.10-4),
+ libuuid1 (= 2.36-3+b1),
+ libxml2 (= 2.9.10+dfsg-6),
+ libzstd1 (= 1.4.5+dfsg-4),
+ linux-libc-dev (= 5.8.10-1),
+ login (= 1:4.8.1-1),
+ lsb-base (= 11.1.0),
+ m4 (= 1.4.18-4),
+ make (= 4.3-4),
+ man-db (= 2.9.3-2),
+ mawk (= 1.3.4.20200120-2),
+ ncal (= 12.1.7),
+ ncurses-base (= 6.2+20200918-1),
+ ncurses-bin (= 6.2+20200918-1),
+ patch (= 2.7.6-6),
+ perl (= 5.30.3-4),
+ perl-base (= 5.30.3-4),
+ perl-modules-5.30 (= 5.30.3-4),
+ po-debconf (= 1.0.21),
+ sed (= 4.7-1),
+ sensible-utils (= 0.0.12+nmu1),
+ sysvinit-utils (= 2.96-5),
+ tar (= 1.30+dfsg-7),
+ util-linux (= 2.36-3+b1),
+ xz-utils (= 5.2.4-1+b1),
+ zlib1g (= 1:1.2.11.dfsg-2)
+Environment:
+ DEB_BUILD_OPTIONS="parallel=8"
+ LANG="fr_FR.UTF-8"
+ SOURCE_DATE_EPOCH="1601537715"

spec/fixtures/packages/debian/sample_1.2.3~alpha2_amd64.changes

+Format: 1.8
+Date: Thu, 01 Oct 2020 09:35:15 +0200
+Source: sample
+Binary: libsample0 sample-dev sample-udeb
+Architecture: source amd64
+Version: 1.2.3~alpha2
+Distribution: unstable
+Urgency: medium
+Maintainer: John Doe <john.doe@example.com>
+Changed-By: John Doe <john.doe@example.com>
+Description:
+ libsample0 - Some mostly empty lib
+ sample-dev - Some mostly empty developpement files
+ sample-udeb - Some mostly empty udeb (udeb)
+Changes:
+ sample (1.2.3~alpha2) unstable; urgency=medium
+ .
+   * Initial release
+Checksums-Sha1:
+ 32ecbd674f0bfd310df68484d87752490685a8d6 671 sample_1.2.3~alpha2.dsc
+ 5f8bba5574eb01ac3b1f5e2988e8c29307788236 864 sample_1.2.3~alpha2.tar.xz
+ 5248b95600e85bfe7f63c0dfce330a75f5777366 1124 libsample0_1.2.3~alpha2_amd64.deb
+ f81e4f66c8c6bb899653a3340c157965ee69634f 1164 sample-dev_1.2.3~binary_amd64.deb
+ e42e8f2fe04ed1bb73b44a187674480d0e49dcba 736 sample-udeb_1.2.3~alpha2_amd64.udeb
+ 0d47e899f3cc67a2253a4629456ff927e0db5c60 5280 sample_1.2.3~alpha2_amd64.buildinfo
+Checksums-Sha256:
+ 844f79825b7e8aaa191e514b58a81f9ac1e58e2180134b0c9512fa66d896d7ba 671 sample_1.2.3~alpha2.dsc
+ b5a599e88e7cbdda3bde808160a21ba1dd1ec76b2ec8d4912aae769648d68362 864 sample_1.2.3~alpha2.tar.xz
+ 1c383a525bfcba619c7305ccd106d61db501a6bbaf0003bf8d0c429fbdb7fcc1 1124 libsample0_1.2.3~alpha2_amd64.deb
+ 9fbeee2191ce4dab5288fad5ecac1bd369f58fef9a992a880eadf0caf25f086d 1164 sample-dev_1.2.3~binary_amd64.deb
+ 2b0c152b3ab4cc07663350424de972c2b7621d69fe6df2e0b94308a191e4632f 736 sample-udeb_1.2.3~alpha2_amd64.udeb
+ f9900d3c94e94b329232668dcbef3dba2d96c07147b15b6dc0533452e4dd8a43 5280 sample_1.2.3~alpha2_amd64.buildinfo
+Files:
+ 3b0817804f669e16cdefac583ad88f0e 671 libs optional sample_1.2.3~alpha2.dsc
+ d79b34f58f61ff4ad696d9bd0b8daa68 864 libs optional sample_1.2.3~alpha2.tar.xz
+ fb0842b21adc44207996296fe14439dd 1124 libs optional libsample0_1.2.3~alpha2_amd64.deb
+ d2afbd28e4d74430d22f9504e18bfdf5 1164 libdevel optional sample-dev_1.2.3~binary_amd64.deb
+ 72b1dd7d98229e2fb0355feda1d3a165 736 libs optional sample-udeb_1.2.3~alpha2_amd64.udeb
+ 4e085dd67c120ca967ec314f65770a42 5280 libs optional sample_1.2.3~alpha2_amd64.buildinfo

spec/services/packages/debian/extract_deb_metadata_service_spec.rb

+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe Packages::Debian::ExtractDebMetadataService do
+  subject { described_class.new(file_path) }
+
+  let(:file_name) { 'libsample0_1.2.3~alpha2_amd64.deb' }
+  let(:file_path) { "spec/fixtures/packages/debian/#{file_name}" }
+
+  context 'with correct file' do
+    it 'return as expected' do
+      expected = {
+        'Package': 'libsample0',
+        'Source': 'sample',
+        'Version': '1.2.3~alpha2',
+        'Architecture': 'amd64',
+        'Maintainer': 'John Doe <john.doe@example.com>',
+        'Installed-Size': '7',
+        'Section': 'libs',
+        'Priority': 'optional',
+        'Multi-Arch': 'same',
+        'Homepage': 'https://gitlab.com/',
+        'Description': "Some mostly empty lib\nUsed in GitLab tests.\n\nTesting another paragraph."
+      }
+
+      expect(subject.execute).to eq expected
+    end
+  end
+
+  context 'with incorrect file' do
+    let(:file_name) { 'README.md' }
+
+    it 'raise error' do
+      expect {subject.execute}.to raise_error(described_class::CommandFailedError, /is not a Debian format archive/i)
+    end
+  end
+end

spec/services/packages/debian/parse_debian822_service_spec.rb

+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe Packages::Debian::ParseDebian822Service do
+  subject { described_class.new(input) }
+
+  context 'with dpkg-deb --field output' do
+    let(:input) do
+      <<~HEREDOC
+        Package: libsample0
+        Source: sample
+        Version: 1.2.3~alpha2
+        Architecture: amd64
+        Maintainer: John Doe <john.doe@example.com>
+        Installed-Size: 9
+        Section: libs
+        Priority: optional
+        Multi-Arch: same
+        Homepage: https://gitlab.com/
+        Description: Some mostly empty lib
+         Used in GitLab tests.
+         .
+         Testing another paragraph.
+      HEREDOC
+    end
+
+    it 'return as expected, preserving order' do
+      expected = {
+        'Package: libsample0' => {
+          'Package': 'libsample0',
+          'Source': 'sample',
+          'Version': '1.2.3~alpha2',
+          'Architecture': 'amd64',
+          'Maintainer': 'John Doe <john.doe@example.com>',
+          'Installed-Size': '9',
+          'Section': 'libs',
+          'Priority': 'optional',
+          'Multi-Arch': 'same',
+          'Homepage': 'https://gitlab.com/',
+          'Description': "Some mostly empty lib\nUsed in GitLab tests.\n\nTesting another paragraph."
+        }
+      }
+
+      expect(subject.execute.to_s).to eq(expected.to_s)
+    end
+  end
+
+  context 'with control file' do
+    let(:input) { fixture_file('packages/debian/sample/debian/control') }
+
+    it 'return as expected, preserving order' do
+      expected = {
+        'Source: sample' => {
+          'Source': 'sample',
+          'Priority': 'optional',
+          'Maintainer': 'John Doe <john.doe@example.com>',
+          'Build-Depends': 'debhelper-compat (= 13)',
+          'Standards-Version': '4.5.0',
+          'Section': 'libs',
+          'Homepage': 'https://gitlab.com/',
+          # 'Vcs-Browser': 'https://salsa.debian.org/debian/sample-1.2.3',
+          # '#Vcs-Git': 'https://salsa.debian.org/debian/sample-1.2.3.git',
+          'Rules-Requires-Root': 'no'
+        },
+        'Package: sample-dev' => {
+          'Package': 'sample-dev',
+          'Section': 'libdevel',
+          'Architecture': 'any',
+          'Multi-Arch': 'same',
+          'Depends': 'libsample0 (= ${binary:Version}), ${misc:Depends}',
+          'Description': "Some mostly empty developpement files\nUsed in GitLab tests.\n\nTesting another paragraph."
+        },
+        'Package: libsample0' => {
+          'Package': 'libsample0',
+          'Architecture': 'any',
+          'Multi-Arch': 'same',
+          'Depends': '${shlibs:Depends}, ${misc:Depends}',
+          'Description': "Some mostly empty lib\nUsed in GitLab tests.\n\nTesting another paragraph."
+         },
+         'Package: sample-udeb' => {
+           'Package': 'sample-udeb',
+           'Package-Type': 'udeb',
+           'Architecture': 'any',
+           'Depends': 'installed-base',
+           'Description': 'Some mostly empty udeb'
+         }
+      }
+
+      expect(subject.execute.to_s).to eq(expected.to_s)
+    end
+  end
+
+  context 'with empty input' do
+    let(:input) { '' }
+
+    it 'return a empty hash' do
+      expect(subject.execute).to eq({})
+    end
+  end
+
+  context 'with unexpected continuation line' do
+    let(:input) { ' continuation' }
+
+    it 'raise error' do
+      expect {subject.execute}.to raise_error(described_class::InvalidDebian822Error, 'Parse error. Unexpected continuation line')
+    end
+  end
+
+  context 'with duplicate field' do
+    let(:input) do
+      <<~HEREDOC
+        Package: libsample0
+        Source: sample
+        Source: sample
+      HEREDOC
+    end
+
+    it 'raise error' do
+      expect {subject.execute}.to raise_error(described_class::InvalidDebian822Error, "Duplicate field 'Source' in section 'Package: libsample0'")
+    end
+  end
+
+  context 'with incorrect input' do
+    let(:input) do
+      <<~HEREDOC
+        Hello
+      HEREDOC
+    end
+
+    it 'raise error' do
+      expect {subject.execute}.to raise_error(described_class::InvalidDebian822Error, 'Parse error on line Hello')
+    end
+  end
+
+  context 'with duplicate section' do
+    let(:input) do
+      <<~HEREDOC
+        Package: libsample0
+
+        Package: libsample0
+      HEREDOC
+    end
+
+    it 'raise error' do
+      expect {subject.execute}.to raise_error(described_class::InvalidDebian822Error, "Duplicate section 'Package: libsample0'")
+    end
+  end
+end

spec/support/shared_examples/requests/api/debian_packages_shared_examples.rb

@@ -20,7 +20,7 @@ RSpec.shared_context 'Debian repository shared context' do |object_type|
   let(:source_package) { 'sample' }
   let(:letter) { source_package[0..2] == 'lib' ? source_package[0..3] : source_package[0] }
   let(:package_name) { 'libsample0' }
-  let(:package_version) { '1.2.3~alpha2-1' }
+  let(:package_version) { '1.2.3~alpha2' }
   let(:file_name) { "#{package_name}_#{package_version}_#{architecture}.deb" }
 
   let(:method) { :get }