name: coverage_test
on:
  pull_request:
    types:
      - closed 

jobs:
  if_merged:
    if: github.event.pull_request.merged == true
    build:
    name: coverage-test
    runs-on: ubuntu-latest
    steps:
      - name: Clone postgres repository
        uses: actions/checkout@v2
        with:
          repository: 'postgres/postgres'
          ref: 'REL_14_STABLE'

      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt purge postgresql-client-common postgresql-common postgresql postgresql*
          sudo apt-get install libreadline6-dev systemtap-sdt-dev zlib1g-dev libssl-dev libpam0g-dev python-dev bison flex libipc-run-perl -y docbook-xsl docbook-xsl
          sudo apt-get install -y libxml2 libxml2-utils libxml2-dev libxslt-dev xsltproc libkrb5-dev libldap2-dev libsystemd-dev gettext tcl-dev libperl-dev
          sudo apt-get install -y pkg-config clang-9 llvm-9 llvm-9-dev libselinux1-dev python-dev python3-dev uuid-dev liblz4-dev lcov
          sudo rm -rf /var/lib/postgresql/
          sudo rm -rf /var/log/postgresql/
          sudo rm -rf /etc/postgresql/
          sudo rm -rf /usr/lib/postgresql
          sudo rm -rf /usr/include/postgresql
          sudo rm -rf /usr/share/postgresql
          sudo rm -rf /etc/postgresql
          sudo rm -f /usr/bin/pg_config
          sudo /usr/bin/perl -MCPAN -e 'install IPC::RUN'
          sudo /usr/bin/perl -MCPAN -e 'install String::Util'
          sudo /usr/bin/perl -MCPAN -e 'install Data::Str2Num'

      - name: Create pgsql dir
        run: mkdir -p /opt/pgsql

      - name: Build postgres
        run: |
          export PATH="/opt/pgsql/bin:$PATH"
          ./configure '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=${prefix}/include' \
            '--enable-coverage' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' \
            '--sysconfdir=/etc' '--localstatedir=/var' '--disable-silent-rules' \
            '--libdir=${prefix}/lib/x86_64-linux-gnu' \
            '--libexecdir=${prefix}/lib/x86_64-linux-gnu' '--disable-maintainer-mode' \
            '--disable-dependency-tracking' '--with-icu' '--with-tcl' '--with-perl' \
            '--with-python' '--with-pam' '--with-openssl' '--with-libxml' '--with-libxslt' \
            'PYTHON=/usr/bin/python3' '--mandir=/usr/share/postgresql/14/man' \
            '--docdir=/usr/share/doc/postgresql-doc-14' \
            '--sysconfdir=/etc/postgresql-common' '--datarootdir=/usr/share/' \
            '--datadir=/usr/share/postgresql/14' '--bindir=/usr/lib/postgresql/14/bin' \
            '--libdir=/usr/lib/x86_64-linux-gnu/' '--libexecdir=/usr/lib/postgresql/' \
            '--includedir=/usr/include/postgresql/' '--with-extra-version= (Ubuntu 2:14-x.focal)' \
            '--enable-nls' '--enable-thread-safety' '--enable-tap-tests' '--enable-debug' \
            '--enable-dtrace' '--disable-rpath' '--with-uuid=e2fs' '--with-gnu-ld' \
            '--with-pgport=5432' '--with-system-tzdata=/usr/share/zoneinfo' '--with-llvm' \
            'LLVM_CONFIG=/usr/bin/llvm-config-11' 'CLANG=/usr/bin/clang-11' \
            '--with-systemd' '--with-selinux' 'MKDIR_P=/bin/mkdir -p' 'PROVE=/usr/bin/prove' \
            'TAR=/bin/tar' 'XSLTPROC=xsltproc --nonet' 'CFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -fno-omit-frame-pointer' \
            'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now' '--with-gssapi' '--with-ldap' \
            'build_alias=x86_64-linux-gnu' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' \
            'CXXFLAGS=-g -O2 -fstack-protector-strong -Wformat -Werror=format-security'
           make world
           sudo make install-world

      - name: Start postgresql cluster
        run: |
           /usr/lib/postgresql/14/bin/initdb -D /opt/pgsql/data
           /usr/lib/postgresql/14/bin/pg_ctl -D /opt/pgsql/data -l logfile start

      - name: Clone pg_stat_monitor repository
        uses: actions/checkout@v2
        with:
          path: 'src/pg_stat_monitor'

      - name: Build pg_stat_monitor
        run: |
          export PATH="/usr/lib/postgresql/14/bin:$PATH"
          sudo cp /usr/lib/postgresql/14/bin/pg_config /usr/bin
          make USE_PGXS=1
          sudo make USE_PGXS=1 install
        working-directory: src/pg_stat_monitor/

      - name: Load pg_stat_monitor library and Restart Server
        run: |
          /usr/lib/postgresql/14/bin/pg_ctl -D /opt/pgsql/data -l logfile stop
          echo "shared_preload_libraries = 'pg_stat_monitor'" >> /opt/pgsql/data/postgresql.conf
          /usr/lib/postgresql/14/bin/pg_ctl -D /opt/pgsql/data -l logfile start
        working-directory: src/pg_stat_monitor/

      - name: Start pg_stat_monitor_tests & Run code coverage
        run: |
          make installcheck
          /usr/lib/postgresql/14/bin/psql -d postgres -p 5432 -c "\list"
          make coverage-html
          lcov --capture --directory . --output-file coverage/lcov.info
          pip install cpp-coveralls
          export COVERALLS_REPO_TOKEN="${{ secrets.COVERALL_PG_STAT_MONITOR_TOKEN }}"
          coveralls --verbose
        working-directory: src/pg_stat_monitor/

      - name: Change dir permissions on fail
        if: ${{ failure() }}
        run: |
          sudo chmod -R ugo+rwx t
          sudo chmod -R ugo+rwx tmp_check
          exit 2 # regenerate error so that we can upload files in next step
        working-directory: src/pg_stat_monitor/

      - name: Upload logs on fail
        if: ${{ failure() }}
        uses: actions/upload-artifact@v2
        with:
          name: Regressions diff and postgresql log
          path: |
            src/pg_stat_monitor/regression.diffs
            src/pg_stat_monitor/regression.out
            src/pg_stat_monitor/logfile
            src/pg_stat_monitor/t/results/
            src/pg_stat_monitor/tmp_check/log/
            !src/pg_stat_monitor/tmp_check/**/archives/*
            !src/pg_stat_monitor/tmp_check/**/backup/*
            !src/pg_stat_monitor/tmp_check/**/pgdata/*
            !src/pg_stat_monitor/tmp_check/**/archives/
            !src/pg_stat_monitor/tmp_check/**/backup/
            !src/pg_stat_monitor/tmp_check/**/pgdata/
          if-no-files-found: warn
          retention-days: 3