From c58cbc26cc2a04fa06d22333ffe7ad52f7ede1fa Mon Sep 17 00:00:00 2001
From: Mario Trangoni <mjtrangoni@gmail.com>
Date: Sun, 11 Mar 2018 19:22:22 +0100
Subject: travis.yml: Add cppcheck - A tool for static C/C++ code analysis.

---
 .travis.yml            | 19 +++++++++++++++++--
 run-static-analysis.sh | 14 ++++++++++++++
 2 files changed, 31 insertions(+), 2 deletions(-)
 create mode 100755 run-static-analysis.sh

diff --git a/.travis.yml b/.travis.yml
index f8806d063..3f36340fe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,16 @@ language: cpp
 
 matrix:
   include:
+    - os: linux
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+      env:
+        - MATRIX_EVAL="CC=gcc && CXX=g++"
+        - STATIC_ANALYSIS="yes"
+      fail_fast: true
+
     - os: linux
       addons:
         apt:
@@ -13,7 +23,7 @@ matrix:
           packages:
             - g++-4.9
       env:
-         - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"
+        - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"
 
     - os: linux
       addons:
@@ -47,10 +57,15 @@ matrix:
 
 before_install:
   - sudo apt-get update -qq
+  # cppcheck tool
+  - sudo apt-get install -y cppcheck/trusty-backports
   # imake
   - sudo apt-get install -y xutils-dev
   # X11 libaries
   - sudo apt-get install -y libxcomposite-dev libxfont-dev libxinerama-dev libxrandr-dev libxtst-dev x11proto-fonts-dev
   - eval "${MATRIX_EVAL}"
 script:
-  - make
+   # run static analysis tools
+   - ./run-static-analysis.sh
+   # build all packages
+   - make
diff --git a/run-static-analysis.sh b/run-static-analysis.sh
new file mode 100755
index 000000000..0524c469a
--- /dev/null
+++ b/run-static-analysis.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+if [[ "${STATIC_ANALYSIS}" == "yes" ]]; then
+    # cppcheck
+    if ! [ -x "$(command -v cppcheck)" ]; then
+        echo 'Error: cppcheck is not installed.' >&2
+        exit 1
+    fi
+    CPPCHECK_OPTS='--error-exitcode=0 --force --quiet'
+    # we exclude some external projects
+    CPPCHECK_EXCLUDES='-i ./nx-X11/extras/Mesa* -i ./nx-X11/extras/Mesa_* -i nx-X11/programs/Xserver/GL/mesa*'
+    echo "$(cppcheck --version):";
+    cppcheck $CPPCHECK_OPTS $CPPCHECK_EXCLUDES .;
+fi
-- 
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