Add additional test coverage to Travis-CI. (#50)

* NPOTB: clang clang clang goes the trolly, gcc7 goes the bell.

* Update AMBuildScript

* Initialize engine_path when abspath fails.

* Fix lptr being uninitialized when getcwd fails.

* Remove GCC6; deeper issues than this PR will cover

.travis.yml

@@ -1,32 +1,107 @@
+git:
+  depth: 3
+
+sudo: false
+language: cpp
+os: linux
+dist: trusty
 addons:
   apt:
-    packages:
-    - clang-3.7
-    - lib32stdc++6
-    - lib32z1-dev
-    - libc6-dev-i386
-    - linux-libc-dev
-    - g++-multilib
-    - g++-4.8
     sources:
-    - llvm-toolchain-precise-3.7
-    - ubuntu-toolchain-r-test
-language: cpp
-sudo: false
-compiler:
-  - clang
+      - ubuntu-toolchain-r-test
+      - llvm-toolchain-trusty-3.9
+      - llvm-toolchain-trusty-4.0
+      - llvm-toolchain-trusty-5.0
+    packages:
+      - lib32stdc++6
+      - lib32z1-dev
+      - libc6-dev-i386
+      - linux-libc-dev
+      - g++-multilib
+#      - clang-3.6
+#      - clang-3.8
+#      - clang-4.0
+#      - clang-5.0
+#      - g++-6
+#      - g++-6-multilib
+      - clang-3.9
+      - g++-4.8-multilib
+      - g++-4.8
+      - g++-4.9-multilib
+      - g++-4.9
+      - g++-5-multilib
+      - g++-5
+      - g++-7-multilib
+      - g++-7
+    cache:
+      directories:
+        - ../mysql-5.0
+env:
+ - MATRIX_EVAL="CC=clang-3.9 && CXX=clang++-3.9"
+ - MATRIX_EVAL="CC=gcc-4.8 && CXX=g++-4.8"
+ - MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"
+ - MATRIX_EVAL="CC=gcc-5 && CXX=g++-5"
+ - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"
+
+matrix:
+  fast_finish: true
+  include:
+    - os: linux
+      sudo: false
+      language: cpp
+      addons:
+        apt:
+          packages: ['clang-3.6', 'lib32stdc++6', 'lib32z1-dev', 'libc6-dev-i386', 'linux-libc-dev', 'g++-multilib']
+      env: ['MATRIX_EVAL="CC=clang-3.6 && CXX=clang++-3.6"']
+
+    - os: linux
+      sudo: false
+      language: cpp
+      addons:
+        apt:
+          packages: ['clang-3.8', 'lib32stdc++6', 'lib32z1-dev', 'libc6-dev-i386', 'linux-libc-dev', 'g++-multilib']
+      env: ['MATRIX_EVAL="CC=clang-3.8 && CXX=clang++-3.8"']
+
+    - os: linux
+      sudo: false
+      language: cpp
+      addons:
+        apt:
+          sources: ['llvm-toolchain-trusty-4.0']
+          packages: ['clang-4.0', 'lib32stdc++6', 'lib32z1-dev', 'libc6-dev-i386', 'linux-libc-dev', 'g++-multilib']
+      env: ['MATRIX_EVAL="CC=clang-4.0 && CXX=clang++-4.0"']
+
+    - os: linux
+      sudo: false
+      language: cpp
+      addons:
+        apt:
+          sources: ['llvm-toolchain-trusty-5.0']
+          packages: ['clang-5.0', 'lib32stdc++6', 'lib32z1-dev', 'libc6-dev-i386', 'linux-libc-dev', 'g++-multilib']
+      env: ['MATRIX_EVAL="CC=clang-5.0 && CXX=clang++-5.0"']
+
+  allow_failures:
+    - env: MATRIX_EVAL="CC=clang-3.7 && CXX=clang++-3.7"
+    - env: MATRIX_EVAL="CC=clang-3.9 && CXX=clang++-3.9"
+    - env: MATRIX_EVAL="CC=gcc-4.8 && CXX=g++-4.8"
+    - env: MATRIX_EVAL="CC=gcc-4.9 && CXX=g++-4.9"
+    - env: MATRIX_EVAL="CC=gcc-5 && CXX=g++-5"
+    - env: MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"
+
+
 before_script:
   - CHECKOUT_DIR=$PWD && cd .. && $CHECKOUT_DIR/support/checkout-deps.sh && cd $CHECKOUT_DIR
 script:
   - mkdir build && cd build
   - PATH="~/.local/bin:$PATH"
-  - CC=clang-3.7 CXX=clang-3.7 python ../configure.py --enable-optimize --sdks=episode1,tf2,l4d2,csgo,dota
+  - eval "${MATRIX_EVAL}"
+  - python ../configure.py --enable-optimize --sdks=episode1,tf2,l4d2,csgo,dota
   - ambuild
   - cd .. && mkdir build-sh-opt && cd build-sh-opt
-  - CC=clang-3.7 CXX=clang-3.7 python ../configure.py --enable-optimize --enable-tests --sdks=
+  - python ../configure.py --enable-optimize --enable-tests --sdks=
   - ambuild
   - ./core/sourcehook/test/test_sourcehook/test_sourcehook -v
   - cd .. && mkdir build-sh-debug && cd build-sh-debug
-  - CC=clang-3.7 CXX=clang-3.7 python ../configure.py --enable-debug --enable-tests --sdks=
+  - python ../configure.py --enable-debug --enable-tests --sdks=
   - ambuild
   - ./core/sourcehook/test/test_sourcehook/test_sourcehook -v

AMBuildScript

@@ -202,6 +202,8 @@ class MMSConfig(object):
         cxx.cflags += ['-mfpmath=sse']
       if cxx.family == 'clang':
         cxx.cxxflags += ['-Wno-implicit-exception-spec-mismatch']
+        if cxx.version >= 'clang-3.9':
+          cxx.cxxflags += ['-Wno-expansion-to-defined']
         if cxx.version >= 'clang-3.6' or cxx.version >= 'apple-clang-7.0':
           cxx.cxxflags += ['-Wno-inconsistent-missing-override']
         if cxx.version >= 'apple-clang-5.1' or cxx.version >= 'clang-3.4':

core/metamod.cpp

@@ -375,7 +375,13 @@ void InitializeVSP()
 			break;
 		}
 	}
-	abspath(engine_path, engine_file);
+
+	/* If this fails the file either does not exist or
+	 * on Windows the buffer may be too small. */
+	if (abspath(engine_path, engine_file) == NULL)
+	{
+		engine_path[0] = '\0';
+	}
 
 	const char *usepath = metamod_path.c_str();
 	if (UTIL_Relatize(rel_path, sizeof(rel_path), engine_path, metamod_path.c_str()))

loader/gamedll.cpp

@@ -130,7 +130,6 @@ mm_DetectGameInformation()
 
 	char temp_path[PLATFORM_MAX_PATH];
 	char cur_path[PLATFORM_MAX_PATH];
-	getcwd(cur_path, sizeof(cur_path));
 
 	char *ptr;
 	const char *lptr;
@@ -162,7 +161,10 @@ mm_DetectGameInformation()
 		else
 		{
 			ptr = val;
-			lptr = cur_path;
+			if (getcwd(cur_path, sizeof(cur_path)))
+				lptr = cur_path;
+			else
+				lptr = "";
 		}
 
 		const char *pRelPath = is_source2 ? "../../" : "";