Script to install dependencies for building Swift on Ubuntu 22.04 LTS

install-dependencies-for-building-swift-on-ubuntu-22.04-lts.sh

# Install dependencies for building Swift on Ubuntu 22.04 LTS
# Compiled from Dokerfile https://github.com/swiftlang/swift-docker/blob/main/swift-ci/main/ubuntu/24.04/Dockerfile
# as recommended in https://github.com/swiftlang/swift/blob/main/docs/HowToGuides/GettingStarted.md#linux

# This could be used as script to run on initial Digital Ocean droplet boot up.

# 1. Create a build user (optional, but recommended for safety)
#sudo groupadd -g 998 build-user
#sudo useradd -m -r -u 998 -g build-user build-user

# 2. Set non-interactive frontend (to suppress prompts during install)
export DEBIAN_FRONTEND=noninteractive

# 3. Install build dependencies
sudo apt-get update
sudo apt-get install -y \
  build-essential \
  clang \
  cmake \
  git \
  icu-devtools \
  libc++-18-dev \
  libc++abi-18-dev \
  libcurl4-openssl-dev \
  libedit-dev \
  libicu-dev \
  libncurses5-dev \
  libpython3-dev \
  libsqlite3-dev \
  libxml2-dev \
  ninja-build \
  pkg-config \
  python3-six \
  python3-pip \
  python3-pkg-resources \
  python3-psutil \
  python3-setuptools \
  rsync \
  swig \
  systemtap-sdt-dev \
  tzdata \
  uuid-dev \
  zip \
  curl \
  gpg

# 4. Install Python dependencies
wget https://raw.githubusercontent.com/swiftlang/swift-docker/main/swift-ci/dependencies/requirements.txt -O /tmp/requirements.txt
sudo pip3 install -r /tmp/requirements.txt --break-system-packages

# 5. Download and install Swift
SWIFT_PLATFORM=ubuntu24.04
SWIFT_VERSION=5.10.1
SWIFT_BRANCH=swift-${SWIFT_VERSION}-release
SWIFT_TAG=swift-${SWIFT_VERSION}-RELEASE
SWIFT_WEBROOT=https://download.swift.org
SWIFT_PREFIX=/opt/swift/${SWIFT_VERSION}
ARCH_NAME=$(dpkg --print-architecture)

case "${ARCH_NAME##*-}" in
    amd64) OS_ARCH_SUFFIX='';;
    arm64) OS_ARCH_SUFFIX='-aarch64';;
    *) echo "error: unsupported architecture: '$ARCH_NAME'"; exit 1;;
esac

SWIFT_WEBDIR="$SWIFT_WEBROOT/$SWIFT_BRANCH/$(echo $SWIFT_PLATFORM | tr -d .)$OS_ARCH_SUFFIX"
SWIFT_BIN_URL="$SWIFT_WEBDIR/$SWIFT_TAG/$SWIFT_TAG-$SWIFT_PLATFORM$OS_ARCH_SUFFIX.tar.gz"
SWIFT_SIG_URL="$SWIFT_BIN_URL.sig"

# Now download, verify, and extract Swift:
sudo mkdir -p $SWIFT_PREFIX
cd /tmp

curl -fsSL "$SWIFT_BIN_URL" -o swift.tar.gz
curl -fsSL "$SWIFT_SIG_URL" -o swift.tar.gz.sig
curl -fSsL --compressed https://swift.org/keys/all-keys.asc | gpg --import -
gpg --batch --verify swift.tar.gz.sig swift.tar.gz

sudo tar -xzf swift.tar.gz --directory $SWIFT_PREFIX --strip-components=1
sudo chmod -R o+r $SWIFT_PREFIX/usr/lib/swift

rm swift.tar.gz swift.tar.gz.sig

# 6. Add Swift to your PATH
#Add this to your ~/.bashrc or ~/.profile:
#export PATH="$SWIFT_PREFIX/usr/bin:$PATH"
#Then reload your shell:
#source ~/.bashrc

# 7. (Optional) Switch to the build-user
#sudo su - build-user
#cd ~