Improve CI scripts.

- Add support for skipping CI on specific platforms with commit comments.
- Add support for testing on Alpine (which uses musl instead of glibc).
- Rename "Linux CI" to "Ubuntu CI" now we test other Linux distros.
- Properly add packages to the PATH and LD_LIBRARY_PATH on macOS.

.github/workflows/ci-alpine.yml

@@ -0,0 +1,53 @@
+name: Alpine CI
+on:
+  pull_request:
+  push:
+  schedule:
+    - cron: '0 0 * * 0'
+jobs:
+  build:
+    if: "!contains(github.event.head_commit.message, '[skip alpine ci]')"
+    container: alpine:edge
+    runs-on: ubuntu-latest
+    env:
+      CXXFLAGS: -std=${{ matrix.standard }}
+      TEST_BUILD_MODULES: argon2 geo_maxmind ldap mysql pgsql regex_pcre regex_posix regex_re2 regex_stdlib regex_tre sqlite3 ssl_gnutls ssl_mbedtls ssl_openssl sslrehashsignal
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install dependencies
+        run: |
+          echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
+          apk update
+          apk add \
+            argon2-dev \
+            clang \
+            g++ \
+            git \
+            gnutls-dev \
+            libmaxminddb-dev \
+            libpq-dev \
+            make \
+            mariadb-dev \
+            mbedtls-dev \
+            openldap-dev \
+            openssl-dev \
+            pcre-dev \
+            perl \
+            pkgconf \
+            re2-dev \
+            sqlite-dev \
+            tre-dev
+
+      - name: Run test-build
+        run: |
+          ./tools/test-build ${{ matrix.compiler }}
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler:
+          - clang++
+          - g++
+        standard:
+          - gnu++98
+          - c++17

.github/workflows/ci-linux.yml

@@ -1,4 +1,4 @@
-name: Linux CI
+name: Ubuntu CI
 on:
   pull_request:
   push:
@@ -6,19 +6,39 @@ on:
     - cron: '0 0 * * 0'
 jobs:
   build:
+    if: "!contains(github.event.head_commit.message, '[skip ubuntu ci]')"
     runs-on: ubuntu-18.04
     env:
       CXXFLAGS: -std=${{ matrix.standard }}
       TEST_BUILD_MODULES: argon2 geo_maxmind ldap mysql pgsql regex_pcre regex_posix regex_re2 regex_stdlib regex_tre sqlite3 ssl_gnutls ssl_mbedtls ssl_openssl sslrehashsignal
     steps:
       - uses: actions/checkout@v2
+
       - name: Install dependencies
         run: |
           sudo apt-get update --assume-yes
-          sudo apt-get install --assume-yes --no-install-recommends clang g++ git make libc++-dev libc++abi-dev pkg-config
-          sudo apt-get install --assume-yes --no-install-recommends libargon2-0-dev libgnutls28-dev libldap2-dev libmaxminddb-dev libmbedtls-dev libmysqlclient-dev libpcre3-dev libpq-dev libre2-dev libsqlite3-dev libssl-dev libtre-dev
+          sudo apt-get install --assume-yes --no-install-recommends \
+            clang \
+            g++ \
+            git \
+            libargon2-dev \
+            libgnutls28-dev \
+            libldap2-dev \
+            libmaxminddb-dev \
+            libmbedtls-dev \
+            libmysqlclient-dev \
+            libpcre3-dev \
+            libpq-dev \
+            libre2-dev \
+            libsqlite3-dev \
+            libssl-dev \
+            libtre-dev \
+            make \
+            pkg-config
+
       - name: Run test-build
-        run: ./tools/test-build ${{ matrix.compiler }}
+        run: |
+          ./tools/test-build ${{ matrix.compiler }}
     strategy:
       fail-fast: false
       matrix:

.github/workflows/ci-macos.yml

@@ -6,23 +6,34 @@ on:
     - cron: '0 0 * * 0'
 jobs:
   build:
+    if: "!contains(github.event.head_commit.message, '[skip macos ci]')"
     runs-on: macos-latest
     env:
-      CXXFLAGS: -std=${{ matrix.standard }} -I/usr/local/opt/openssl@1.1/include -Wno-error=deprecated-declarations
-      LDFLAGS: -L/usr/local/opt/openssl@1.1/lib
-      PKG_CONFIG_PATH: /usr/local/opt/openssl@1.1/lib/pkgconfig:/usr/local/opt/sqlite/lib/pkgconfig
+      CXXFLAGS: -std=${{ matrix.standard }} -Wno-error=deprecated-declarations
       TEST_BUILD_MODULES: argon2 geo_maxmind ldap mysql pgsql regex_pcre regex_posix regex_re2 regex_stdlib regex_tre sqlite3 ssl_gnutls ssl_mbedtls ssl_openssl sslrehashsignal
     steps:
       - uses: actions/checkout@v2
+
       - name: Install dependencies
         run: |
           brew update || true
           for PACKAGE in pkg-config argon2 gnutls libmaxminddb libpq mbedtls mysql-client openssl@1.1 pcre re2 sqlite tre;
           do
             brew install $PACKAGE || brew upgrade $PACKAGE
+
+            BREW_PREFIX=$(brew --prefix $PACKAGE)
+            if [ -d "$BREW_PREFIX/bin" ]
+            then
+              export PATH="$PATH:$BREW_PREFIX/bin"
+            fi
+            if [ -d "$BREW_PREFIX/lib/pkgconfig" ]
+            then
+              export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$BREW_PREFIX/lib/pkgconfig"
+            fi
           done
-          brew link --force --overwrite libpq
-          brew link --force --overwrite mysql-client
+          echo "PATH=$PATH" >> $GITHUB_ENV
+          echo "PKG_CONFIG_PATH=$PKG_CONFIG_PATH" >> $GITHUB_ENV
+
       - name: Run test-build
         run: ./tools/test-build c++
     strategy:

.github/workflows/ci-windows.yml

@@ -6,6 +6,7 @@ on:
     - cron: '0 0 * * 0'
 jobs:
   build:
+    if: "!contains(github.event.head_commit.message, '[skip windows ci]')"
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v2

tools/test-build

@@ -49,6 +49,7 @@ for my $compiler (@compilers) {
 	for my $socketengine (@socketengines) {
 		say "Attempting to build using the $compiler compiler and the $socketengine socket engine...";
 		my @configure_flags;
+		push @configure_flags, '--disable-ownership' unless $>;
 		if (defined $ENV{TEST_BUILD_MODULES}) {
 			execute "$root/configure", '--enable-extras', $ENV{TEST_BUILD_MODULES};
 			push @configure_flags, '--disable-auto-extras';