How to Set Up Continuous Deployment for Rust Applications

Set up continuous deployment by creating a GitHub Actions workflow file at .github/workflows/main.yml that triggers on pushes and pull requests to run tests, linting, and builds using rustup, cargo, and mdbook.

name: CI
on: [push, pull_request]

env:
  MDBOOK_VERSION: 0.5.1

jobs:
  test:
    name: Run tests
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@master
    - name: Update rustup
      run: rustup self update
    - name: Install Rust
      run: |
        rustup set profile minimal
        rustup toolchain install 1.90 -c rust-docs
        rustup default 1.90
    - name: Install mdbook
      run: |
        mkdir bin
        curl -sSL https://github.com/rust-lang/mdBook/releases/download/v${MDBOOK_VERSION}/mdbook-v${MDBOOK_VERSION}-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=bin
        echo "$(pwd)/bin" >> "${GITHUB_PATH}"
    - name: Build `trpl` crate
      run: |
        cd packages/trpl
        cargo build
    - name: Run tests
      run: mdbook test --library-path packages/trpl/target/debug/deps
  package_tests:
    name: Run package tests
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@master
    - name: Update rustup
      run: rustup self update
    - name: Install Rust
      run: |
        rustup set profile minimal
        rustup toolchain install 1.90 -c rust-docs
        rustup default 1.90
    - name: Run `tools` package tests
      run: cargo test
    - name: Run `mdbook-trpl` package tests
      working-directory: packages/mdbook-trpl
      run: cargo test
  lint:
    name: Run lints
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@master
    - name: Update rustup
      run: rustup self update
    - name: Install Rust
      run: |
        rustup set profile minimal
        rustup toolchain install nightly -c rust-docs
        rustup override set nightly
    - name: Install mdbook
      run: |
        mkdir bin
        curl -sSL https://github.com/rust-lang/mdBook/releases/download/v${MDBOOK_VERSION}/mdbook-v${MDBOOK_VERSION}-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=bin
        echo "$(pwd)/bin" >> "${GITHUB_PATH}"
    - name: Install aspell
      run: sudo apt-get install aspell
    - name: Install shellcheck
      run: sudo apt-get install shellcheck
    - name: Shellcheck
      run: find . -name '*.sh' -print0 | xargs -0 shellcheck
    - name: Spellcheck
      run: bash ci/spellcheck.sh list
    - name: Lint for local file paths
      run: |
        mdbook build
        cargo run --bin lfp src
    - name: Validate references
      run: bash ci/validate.sh
    - name: Check for broken links
      run: |
        curl -sSLo linkcheck.sh https://raw.githubusercontent.com/rust-lang/rust/HEAD/src/tools/linkchecker/linkcheck.sh
        sh linkcheck.sh book

Continuous Deployment for Rust Applications sets up an automated system that checks your Rust code every time you save changes. It runs tests and quality checks on a remote server to catch errors before you merge your work. Think of it as a safety net that ensures your code works correctly before it reaches your users.