Add CI workflows

.github/FUNDING.yml

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+# These are supported funding model platforms
+
+github: attipaci
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
+polar: # Replace with a single Polar username
+buy_me_a_coffee: # Replace with a single Buy Me a Coffee username
+thanks_dev: # Replace with a single thanks.dev username
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/build.yml

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+name: Build
+
+on: 
+  push:
+    branches:
+      - main
+    paths:
+      - 'src/**'
+      - 'include/**'
+      - 'Makefile'
+      - '*.mk'
+      - '.github/workflows/build.yml'
+
+  pull_request:
+    paths:
+      - 'src/**'
+      - 'include/**'
+      - 'Makefile'
+      - '*.mk'
+      - '.github/workflows/build.yml'
+
+jobs:
+
+  build:
+    name: Build library
+
+    runs-on: ubuntu-latest
+    env:
+      CC: gcc
+      CPPFLAGS: -I/usr/postgresql/include
+      LDFLAGS: -L/usr/postgresql/lib
+      CFLAGS: -Os -Wall -Wextra -Werror -std=c99
+      XCHANGE: ../xchange
+      REDISX: ../redisx
+      SMAXLIB: ../smax-clib
+    steps:
+    - name: install PostgreSQL
+      run: sudo apt-get install libpq-dev
+
+    - name: install systemd development files
+      run: sudo apt-get install libsystemd-dev
+
+    - name: install popt development files
+      run: sudo apt-get install libpopt-dev
+
+    - name: Check out smax-postgres
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/smax-postgres
+        path: smax-postgres
+
+    - name: Check out smax-clib
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/smax-clib
+        path: smax-clib
+
+    - name: Check out xchange dependency
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/xchange
+        path: xchange
+
+    - name: Check out RedisX dependency
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/redisx
+        path: redisx
+
+    - name: Build xchange dependency
+      run: make -C xchange shared
+
+    - name: Build RedisX dependency
+      run: make -C redisx shared
+
+    - name: Build shared library
+      run: make -C smax-clib shared
+
+    - name: Build smax-postgres application
+      run: make -C smax-postgres
+

.github/workflows/check.yml

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+name: Static Analysis
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'src/**'
+      - 'include/**'
+      - 'Makefile'
+      - '*.mk'
+      - '.github/workflows/check.yml'
+
+  pull_request:
+    paths:
+      - 'src/**'
+      - 'include/**'
+      - 'Makefile'
+      - '*.mk'
+      - '.github/workflows/check.yml'
+
+jobs:
+
+  cppcheck:
+    name: Check source code
+
+    runs-on: ubuntu-latest
+    env:
+      CC: gcc
+      XCHANGE: xchange
+      REDISX: redisx
+      SMAXLIB: smax-clib
+    steps:
+
+    - name: Check out smax-postgres
+      uses: actions/checkout@v4
+
+    - name: Check out xchange dependency
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/xchange
+        path: xchange
+
+    - name: Check out RedisX dependency
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/redisx
+        path: redisx
+
+    - name: Check out smax-clib dependency
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/smax-clib
+        path: smax-clib
+
+    - name: install package dependencies
+      run: sudo apt-get install -y cppcheck
+
+    - name: Run cppcheck
+      run: make check

.github/workflows/codeql.yml

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+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL Advanced"
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  schedule:
+    - cron: '35 18 * * 5'
+
+jobs:
+  analyze:
+    name: Analyze (${{ matrix.language }})
+    # Runner size impacts CodeQL analysis time. To learn more, please see:
+    #   - https://gh.io/recommended-hardware-resources-for-running-codeql
+    #   - https://gh.io/supported-runners-and-hardware-resources
+    #   - https://gh.io/using-larger-runners (GitHub.com only)
+    # Consider using larger runners or machines with greater resources for possible analysis time improvements.
+    runs-on: [ 'ubuntu-latest' ]
+    permissions:
+      # required for all workflows
+      security-events: write
+
+      # required to fetch internal or private CodeQL packs
+      packages: read
+
+      # only required for workflows in private repositories
+      actions: read
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+        - language: c-cpp
+          build-mode: autobuild
+        # CodeQL supports the following values keywords for 'language': 'c-cpp', 'csharp', 'go', 'java-kotlin', 'javascript-typescript', 'python', 'ruby', 'swift'
+        # Use `c-cpp` to analyze code written in C, C++ or both
+        # Use 'java-kotlin' to analyze code written in Java, Kotlin or both
+        # Use 'javascript-typescript' to analyze code written in JavaScript, TypeScript or both
+        # To learn more about changing the languages that are analyzed or customizing the build mode for your analysis,
+        # see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/customizing-your-advanced-setup-for-code-scanning.
+        # If you are analyzing a compiled language, you can modify the 'build-mode' for that language to customize how
+        # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
+    steps:
+    - name: install PostgreSQL
+      run: sudo apt-get install libpq-dev
+
+    - name: install systemd development files
+      run: sudo apt-get install libsystemd-dev
+
+    - name: install popt development files
+      run: sudo apt-get install libpopt-dev
+
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Checkout xchange dependency
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/xchange
+        path: xchange
+
+    - name: Checkout RedisX dependency
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/redisx
+        path: redisx
+
+    - name: Checkout smax-clib dependency
+      uses: actions/checkout@v4
+      with:
+        repository: Smithsonian/smax-clib
+        path: smax-clib
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        build-mode: manual
+
+    - name: Manual build dependencies
+      shell: bash
+      env:
+        XCHANGE: ../xchange
+        REDISX: ../redisx
+      run: |
+        make -C xchange shared
+        make -C redisx shared
+        make -C smax-clib shared
+        
+    - name: Manual build
+      shell: bash
+      env:
+        XCHANGE: xchange
+        REDISX: redisx
+        SMAXLIB: smax-clib
+      run: |
+        make app
+    
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"