Added `--enable-code-coverage' build using lcov for coverage generation. (#1430)

* CI job generates a coverage report

Signed-off-by: Toni Uhlig <matzeton@googlemail.com>

2 files changed, 40 insertions, 0 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3a8214849..adcf7fe6b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,6 +10,39 @@ on:
   release:
     types: [created]
 jobs:
+  coverage:
+    name: Coverage (ubuntu-latest)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Install Ubuntu Prerequisites
+        run: |
+          sudo apt-get update
+          sudo apt-get install autoconf automake libtool pkg-config gettext libjson-c-dev flex bison libpcap-dev
+          sudo apt-get install rrdtool librrd-dev
+          sudo apt-get install libgcrypt20-dev libpcre3-dev libmaxminddb-dev lcov
+      - name: Configure
+        run: env CC=gcc CFLAGS='-Werror' ./autogen.sh --enable-debug-messages --enable-code-coverage --with-pcre --with-maxminddb
+      - name: Build
+        run: make all
+      - name: Test
+        run: |
+          ./tests/do.sh
+          ./tests/do-unit.sh
+          ./tests/do-dga.sh
+      - name: Generate Coverage Report
+        run: |
+          mkdir -p coverage_report/ndpi_coverage_report
+          lcov --directory . --capture --output-file lcov.info
+          genhtml -o coverage_report/ndpi_coverage_report lcov.info
+      - uses: actions/upload-artifact@v2
+        with:
+          name: ndpi-coverage-report
+          path: coverage_report
+          retention-days: 7
+
   test:
     name: ${{ matrix.os }} ${{ matrix.arch }} ${{ matrix.gcrypt }} ${{ matrix.compiler }} ${{ matrix.pcre }} ${{ matrix.maxminddb }} ${{ matrix.msan }}
     runs-on: ${{ matrix.os }}
diff --git a/configure.ac b/configure.ac
index 2a732efe2..462847387 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,6 +15,8 @@ AS_IF([test "${with_only_libndpi+set}" = set],[
 
 AC_ARG_WITH(sanitizer,     AS_HELP_STRING([--with-sanitizer], [Build with support for address, undefined and leak sanitizer]))
 AC_ARG_ENABLE(fuzztargets, AS_HELP_STRING([--enable-fuzztargets], [Enable fuzz targets]),[enable_fuzztargets=$enableval],[enable_fuzztargets=no])
+AC_ARG_ENABLE(code-coverage, AS_HELP_STRING([--enable-code-coverage], [Generate Code Coverage report]))
+
 AS_IF([test "x$enable_fuzztargets" = "xyes"], [BUILD_FUZZTARGETS=1], [BUILD_FUZZTARGETS=0])
 AM_CONDITIONAL([BUILD_FUZZTARGETS], [test "x$enable_fuzztargets" = "xyes"])
 
@@ -23,6 +25,11 @@ AS_IF([test "${with_sanitizer+set}" = set],[
   LDFLAGS="${LDFLAGS} -fsanitize=address -fsanitize=undefined -fno-sanitize=alignment -fsanitize=leak"
 ])
 
+AS_IF([test "x$enable_code_coverage" = "xyes"],[
+  CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage"
+  LDFLAGS="${LDFLAGS} --coverage"
+])
+
 LT_INIT
 LT_LIB_M
 PKG_PROG_PKG_CONFIG