feat: add new slice definitions for 'git' and dependancies

slices/git.yaml

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+package: git
+
+essential:
+  - git_copyright
+
+slices:
+  bins:
+    # basic functionality including:
+    # - add
+    # - blame
+    # - branch
+    # - checkout
+    # - commit
+    # - config
+    # - diff
+    # - fetch
+    # - init
+    # - log
+    # - merge
+    # - rev-list
+    # - status
+    essential:
+      - libc6_libs
+      - libpcre2-8-0_libs
+      - zlib1g_libs
+    contents:
+      /usr/bin/git: { symlink: /usr/lib/git-core/git }
+      /usr/lib/git-core/git:
+
+  daemon:
+    essential:
+      - git_bins
+    contents:
+      /usr/lib/git-core/git-daemon:
+
+  http-support:
+    # requirements for cloning over http`git clone https://`:
+    essential:
+      - git_bins
+      - libcurl3t64-gnutls_libs
+      - libexpat1_libs
+    contents:
+      /usr/lib/git-core/git-remote-http:
+      /usr/lib/git-core/git-remote-https:  # link pointing to git-remote-http
+
+  ftp-support:
+    # requirements for cloning over ftp`git clone ftp://`:
+    essential:
+      - git_http-support
+    contents:
+      /usr/lib/git-core/git-remote-ftp:
+
+  copyright:
+    contents:
+      /usr/share/doc/git/copyright:

slices/libcurl3t64-gnutls.yaml

@@ -0,0 +1,27 @@
+package: libcurl3t64-gnutls
+
+essential:
+  - libcurl3t64-gnutls_copyright
+
+slices:
+  libs:
+    essential:
+      - libbrotli1_libs
+      - libc6_libs
+      - libgnutls30t64_libs
+      - libgssapi-krb5-2_libs
+      - libidn2-0_libs
+      - libldap2_libs
+      - libnettle8t64_libs
+      - libnghttp2-14_libs
+      - libpsl5t64_libs
+      - librtmp1_libs
+      - libssh-4_libs
+      - libzstd1_libs
+      - zlib1g_libs
+    contents:
+      /usr/lib/*-linux-*/libcurl-gnutls.so.*:
+
+  copyright:
+    contents:
+      /usr/share/doc/libcurl3t64-gnutls/copyright:

slices/python3-pyftpdlib.yaml

@@ -0,0 +1,15 @@
+package: python3-pyftpdlib
+
+essential:
+  - python3-pyftpdlib_copyright
+
+slices:
+  libs:
+    essential:
+      - python3_standard
+    contents:
+      /usr/lib/python3/dist-packages/pyftpdlib/*.py:
+
+  copyright:
+    contents:
+      /usr/share/doc/python3-pyftpdlib/copyright:

tests/spread/integration/git/task.yaml

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+summary: Integration tests for git
+
+environment:
+  EXTRA_SLICES: "" # No extra slices by default.
+  # test git_bins
+  RUN/bins: test_bins
+  SLICE/bins: git_bins
+  # test git_http-support
+  RUN/http_support: test_http_support
+  SLICE/http_support: git_http-support
+  EXTRA_SLICES/http_support: ca-certificates_data
+  # test git_ftp-support
+  RUN/ftp_support: test_ftp_support
+  SLICE/ftp_support: git_ftp-support
+  # test git_daemon
+  RUN/daemon_support: test_daemon_support
+  SLICE/daemon_support: git_daemon
+
+execute: |
+
+  git_rootfs="/"
+  function chroot_git(){
+    # execute git within chroot. We use -C to cd since
+    # we have no $SHELL to navigate with. 
+    repo="$(realpath -e --relative-to="$git_rootfs" "$PWD")"
+    chroot "$git_rootfs" /usr/bin/git -C "$repo" "$@"
+  }
+
+  function setup(){
+    mkdir -p "$1/dev/"
+    mkdir -p "$1/etc/"
+
+    # fake essentials
+    touch "$1/dev/null"
+    head -c 500 /dev/urandom > "$1/dev/urandom"
+    cp /etc/resolv.conf $1/etc/
+    mkdir "$1/root"
+
+    # configure
+    git_rootfs="$1"
+    pushd "$1"
+
+  }
+
+  function cleanup(){
+    popd
+  }
+
+  function test_bins(){
+    chroot_git init
+    chroot_git config user.email "root@localhost"
+    chroot_git config user.name "Test Runner"
+
+    echo "Test" > "$1/test.txt"
+    chroot_git add test.txt
+    chroot_git commit -m 'test commit'
+
+    chroot_git --no-pager status
+    chroot_git --no-pager log
+
+    chroot_git blame -L 1,1 test.txt
+    [[ $(chroot_git ls-files) == "test.txt" ]]
+
+    chroot_git checkout -b test
+
+    chroot_git --no-pager diff master
+    chroot_git branch
+    chroot_git checkout master
+    chroot_git merge test
+  }
+
+  function test_http_support(){
+    chroot_git clone --depth 1 https://git.launchpad.net/ubuntu/+source/hello hello
+    cd $_
+
+    chroot_git --no-pager log
+    chroot_git fetch origin
+    chroot_git --no-pager  branch --remotes --contains $(chroot_git rev-list -n 1 HEAD)
+  }
+
+  function test_ftp_support(){
+    ftp_root=$(install-slices python3-pyftpdlib_libs)
+
+    mkdir -p srv/git/ftp-src
+    pushd $_
+    chroot_git init --bare
+    chroot_git update-server-info
+    popd
+
+    cp -r $1/srv $ftp_root
+
+    pushd $ftp_root/srv/git
+    chroot $ftp_root /usr/bin/python3 -m pyftpdlib -V -p 2121 -d /srv/git &
+    pyftpdlib_pid=$!
+    popd
+
+    # wait for server port to become available
+    while ! fuser 2121/tcp > /dev/null 2>&1
+    do
+      if ! test -d /proc/$pyftpdlib_pid 
+      then
+        echo "pyftpdlib exited early"
+        exit 1
+      fi
+      sleep 1
+    done
+
+    # Test cloning the repo
+    chroot_git clone ftp://localhost:2121/ftp-src ftp-dst
+
+    # cleanup
+    kill -TERM $(fuser 2121/tcp  2>/dev/null)
+  }
+
+  function test_daemon_support(){
+    mkdir -p $1/srv/git/daemon-src
+
+    pushd $1/srv/git/daemon-src
+    git init
+    touch test-file
+    chroot_git add test-file
+    chroot_git config user.email "root@localhost"
+    chroot_git config user.name "Test Runner"
+    chroot_git commit -m "Hello daemon"
+    popd
+
+    chroot_git daemon \
+      --base-path=/srv/git \
+      --reuseaddr \
+      --listen=127.0.0.1 \
+      --verbose \
+      --export-all &
+    daemon_pid=$!
+
+
+    # Wait for daemon to start
+    while ! fuser 9418/tcp > /dev/null 2>&1
+    do
+      if ! test -d /proc/$daemon_pid 
+      then
+        echo "daemon exited early"
+        exit 1
+      fi
+      sleep 1
+    done
+
+    # Test cloning the repo
+    chroot_git clone git://localhost/daemon-src daemon-dst
+
+    # Cleanup. TERM or KILL cause git to return an en error.
+    kill -INT $(fuser 9418/tcp  2>/dev/null)
+  }
+
+  rootfs=$(install-slices $SLICE $EXTRA_SLICES)
+  setup $rootfs
+  $RUN $rootfs
+  cleanup

tests/spread/integration/python3-pyftpdlib/task.yaml

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+summary: Integration tests for python3-pyftpdlib
+
+execute: |
+  function wait_for_ftp(){
+    sleep 0.3
+    while ! nc -z 127.0.0.1 2121
+    do
+      test -d /proc/$pyftpdlib_pid || (echo "pyftpdlib exited early"; exit 1)
+      sleep 1
+    done
+  }
+  function cleanup(){
+    while [[ -d /proc/$pyftpdlib_pid ]]; do
+      kill $pyftpdlib_pid || true
+      sleep 0.1
+    done
+  }
+  # Still run the cleanup even on test failure.
+  trap cleanup EXIT
+
+  rootfs="$(install-slices python3-pyftpdlib_libs)"
+  mkdir "${rootfs}/dev"
+  mount --bind /dev "${rootfs}/dev"
+  mkdir -p "${rootfs}"/srv/subdir
+  echo "Test file" > "${rootfs}"/srv/subdir/test-file
+
+  # Basic install smoke test
+
+  chroot "${rootfs}" python3 -m pyftpdlib --help
+
+  # Anonymous hosting
+
+  chroot "${rootfs}" /usr/bin/python3 -m pyftpdlib \
+    --verbose \
+    --interface=127.0.0.1 \
+    --port=2121 \
+    --directory=/srv &
+  export pyftpdlib_pid=$!
+  wait_for_ftp
+
+  [[ "$(curl ftp://127.0.0.1:2121/subdir/test-file)" == "Test file" ]]
+
+  cleanup
+
+  # With login and file upload.
+
+  chroot "${rootfs}" /usr/bin/python3 -m pyftpdlib \
+    --verbose \
+    --interface=127.0.0.1 \
+    --port=2121 \
+    --directory=/srv \
+    --write \
+    --username=testy \
+    --password=testy &
+  export pyftpdlib_pid=$!
+  wait_for_ftp
+
+  [[ "$(curl ftp://testy:[email protected]:2121/subdir/test-file)" == "Test file" ]]
+
+  echo "Test upload" > test-upload
+  curl -T test-upload ftp://testy:[email protected]:2121/test-upload
+  [[ "$(cat "${rootfs}/srv/test-upload")" == "$(cat test-upload)" ]]
+
+  cleanup