Merge pull request #1851 from bluca/gcov

Add code coverage to build system and CI

.travis.yml

@@ -12,6 +12,12 @@ env:
 - BUILD_TYPE=cmake CURVE=tweetnacl
 - BUILD_TYPE=default CURVE=libsodium
 - BUILD_TYPE=default
+- BUILD_TYPE=coverage CURVE=tweetnacl
+
+matrix:
+  exclude:
+    -  env: BUILD_TYPE=coverage CURVE=tweetnacl
+       os: osx
 
 sudo: false
 
@@ -21,6 +27,7 @@ addons:
     - kubuntu-backports
     packages:
     - cmake
+    - lcov
 
 before_install:
 - if [ $TRAVIS_OS_NAME == "osx" ] ; then brew update; brew install binutils ; fi

Makefile.am

@@ -273,9 +273,10 @@ endif
 endif
 endif
 
-src_libzmq_la_CPPFLAGS =
-src_libzmq_la_CXXFLAGS = @LIBZMQ_EXTRA_CXXFLAGS@
-src_libzmq_la_LIBADD =
+src_libzmq_la_CPPFLAGS = $(CODE_COVERAGE_CPPFLAGS)
+src_libzmq_la_CFLAGS = $(CODE_COVERAGE_CFLAGS)
+src_libzmq_la_CXXFLAGS = @LIBZMQ_EXTRA_CXXFLAGS@ $(CODE_COVERAGE_CXXFLAGS)
+src_libzmq_la_LIBADD = $(CODE_COVERAGE_LDFLAGS)
 
 if USE_LIBSODIUM
 src_libzmq_la_CPPFLAGS += ${sodium_CFLAGS}
@@ -760,6 +761,8 @@ MAINTAINERCLEANFILES = \
 	$(srcdir)/configure \
 	`find "$(srcdir)" -type f -name Makefile.in -print`
 
+@CODE_COVERAGE_RULES@
+
 dist-hook:
 	-rm $(distdir)/src/platform.hpp
 	@if test -d "$(srcdir)/.git"; \

README.md

@@ -2,6 +2,7 @@
 
 [![Build Status](https://travis-ci.org/zeromq/libzmq.png?branch=master)](https://travis-ci.org/zeromq/libzmq)
 [![Build status](https://ci.appveyor.com/api/projects/status/e2ks424yrs1un3wt?svg=true)](https://ci.appveyor.com/project/zeromq/libzmq)
+[![Coverage Status](https://coveralls.io/repos/github/zeromq/libzmq/badge.svg?branch=master)](https://coveralls.io/github/zeromq/libzmq?branch=master)
 
 ## Welcome
 

builds/coverage/ci_build.sh

+#!/usr/bin/env bash
+
+set -x
+
+mkdir tmp
+BUILD_PREFIX=$PWD/tmp
+
+CONFIG_OPTS=()
+CONFIG_OPTS+=("CFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("CPPFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("CXXFLAGS=-I${BUILD_PREFIX}/include")
+CONFIG_OPTS+=("LDFLAGS=-L${BUILD_PREFIX}/lib")
+CONFIG_OPTS+=("PKG_CONFIG_PATH=${BUILD_PREFIX}/lib/pkgconfig")
+CONFIG_OPTS+=("--prefix=${BUILD_PREFIX}")
+CONFIG_OPTS+=("--enable-code-coverage")
+
+if [ -z $CURVE ]; then
+    CMAKE_OPTS+=("-DENABLE_CURVE=OFF")
+elif [ $CURVE == "libsodium" ]; then
+    CMAKE_OPTS+=("-DWITH_LIBSODIUM=ON")
+
+    git clone --depth 1 -b stable git://github.com/jedisct1/libsodium.git
+    ( cd libsodium; ./autogen.sh; ./configure --prefix=$BUILD_PREFIX; make install)
+fi
+
+pip install --user cpp-coveralls
+
+# Build, check, and install from local source
+( cd ../..; ./autogen.sh && ./configure "${CONFIG_OPTS[@]}" && make -j5 && make check && coveralls --exclude tests --gcov-options '\-lp') || exit 1

configure.ac

@@ -16,6 +16,7 @@ AM_INIT_AUTOMAKE(foreign subdir-objects tar-ustar dist-zip)
 m4_pattern_allow([AC_PROG_CC_C99])
 m4_include([m4/ax_check_compile_flag.m4])
 m4_include([m4/ax_cxx_compile_stdcxx_11.m4])
+m4_include([m4/ax_code_coverage.m4])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 # This lets us use PACKAGE_VERSION in Makefiles
@@ -50,6 +51,7 @@ AC_PROG_CC
 AX_CHECK_COMPILE_FLAG([-std=gnu11], [CFLAGS+=" -std=gnu11"], [AC_PROG_CC_C99])
 AC_PROG_CXX
 AX_CXX_COMPILE_STDCXX_11([ext], [optional])
+AX_CODE_COVERAGE
 AM_PROG_CC_C_O
 AC_PROG_SED
 AC_PROG_AWK