[build] Refactor and simplify build system

* Main gyp files are now standardized as platform/<platform>/platform.gyp.
* Each platform gyp file defines appropriate loop_lib and headless_lib variables.
* Each platform gyp file includes mbgl.gypi, which defines base targets which may be useful to all platforms.
* CI targets are consistent across platforms: `make $(PLATFORM) && make test-$(PLATFORM)`.
* Renamed the "linux" test app to "glfw". It's now built in OS X CI.
* Android build flakiness is fixed.
* iOS CI builds the bench and iosapp targets.
* Mesa version is now in one place.
* CI scripts use bash "strict mode" and correct error handling.
* All build output goes to the build directory.
* Removed vestigial iOS/OS X/Android Travis scripts.

1 files changed, 293 insertions, 0 deletions

diff --git a/mbgl.gypi b/mbgl.gypi
new file mode 100644
index 0000000000..48eb15d938
--- /dev/null
+++ b/mbgl.gypi
@@ -0,0 +1,293 @@
+{
+  'target_defaults': {
+    'default_configuration': 'Release',
+    'conditions': [
+      ['OS=="mac"', {
+        'xcode_settings': {
+          'CLANG_CXX_LIBRARY': 'libc++',
+          'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
+          'GCC_ENABLE_CPP_EXCEPTIONS': 'YES',
+          'GCC_ENABLE_CPP_RTTI': 'YES',
+          'OTHER_CPLUSPLUSFLAGS': [
+            '-std=c++14',
+            '-Werror',
+            '-Wall',
+            '-Wextra',
+            '-Wshadow',
+            '-Wno-variadic-macros',
+            '-frtti',
+            '-fexceptions',
+            '${CFLAGS}',
+          ],
+          'GCC_WARN_PEDANTIC': 'YES',
+          'GCC_WARN_UNINITIALIZED_AUTOS': 'YES_AGGRESSIVE',
+          'MACOSX_DEPLOYMENT_TARGET': '10.10',
+        },
+      }, {
+        'cflags_cc': [
+          '-std=c++14',
+          '-Werror',
+          '-Wall',
+          '-Wextra',
+          '-Wshadow',
+          '-Wno-variadic-macros',
+          '-Wno-error=unused-parameter',
+          '-frtti',
+          '-fexceptions',
+          '${CFLAGS}',
+        ],
+      }],
+      ['OS=="linux"', {
+        'cflags_cc': [
+          '-Wno-unknown-pragmas', # We are using '#pragma mark', but it is only available on Darwin.
+        ],
+        'conditions': [
+          ['cxx_host != "clang"', {
+            'cflags_cc': [
+              '-fabi-version=0',
+            ],
+          }],
+        ]
+      }],
+    ],
+    'target_conditions': [
+      ['_type == "static_library"', {
+        'conditions': [
+          ['OS=="mac"', {
+            'xcode_settings': {
+              'OTHER_CPLUSPLUSFLAGS': [ '-fPIC' ],
+              'SKIP_INSTALL': 'YES',
+            },
+          }, {
+            'cflags_cc': [ '-fPIC' ],
+          }],
+        ],
+      }],
+    ],
+    'configurations': {
+      'Debug': {
+        'conditions': [
+          ['OS=="mac"', {
+            'xcode_settings': {
+              'GCC_OPTIMIZATION_LEVEL': '0',
+              'GCC_GENERATE_DEBUGGING_SYMBOLS': 'YES',
+              'GCC_INLINES_ARE_PRIVATE_EXTERN': 'YES',
+              'DEAD_CODE_STRIPPING': 'NO',
+              'OTHER_CPLUSPLUSFLAGS': [ '-fno-omit-frame-pointer','-fwrapv', '-fstack-protector-all', '-fno-common' ],
+              'conditions': [
+                ['coverage', {
+                  'GCC_INSTRUMENT_PROGRAM_FLOW_ARCS': 'YES',
+                  'GCC_GENERATE_TEST_COVERAGE_FILES': 'YES',
+                  'OTHER_CPLUSPLUSFLAGS': [ '--coverage' ],
+                }],
+              ],
+            },
+          }, {
+            'cflags_cc': [ '-g', '-O0', '-fno-omit-frame-pointer','-fwrapv', '-fstack-protector-all', '-fno-common' ],
+            'conditions': [
+              ['coverage', { 'cflags_cc': [ '--coverage' ] }],
+            ],
+          }],
+        ],
+        'defines': [ 'DEBUG' ],
+        'target_conditions': [
+          ['_type == "executable"', {
+            'conditions': [
+              ['OS=="mac" and coverage', {
+                 'xcode_settings': { 'OTHER_LDFLAGS': [ '--coverage' ] },
+              }, {
+                'ldflags': [ '--coverage' ],
+              }],
+            ],
+          }],
+        ],
+      },
+      'Release': {
+        'defines': [ 'NDEBUG' ],
+        'conditions': [
+          ['OS=="mac"', {
+            'xcode_settings': {
+              'GCC_OPTIMIZATION_LEVEL': '3',
+              'GCC_GENERATE_DEBUGGING_SYMBOLS': 'YES',
+              'GCC_INLINES_ARE_PRIVATE_EXTERN': 'YES',
+              'DEAD_CODE_STRIPPING': 'NO',
+            },
+          }, {
+            'cflags_cc': [ '-g', '-O3' ],
+          }],
+        ],
+      },
+    },
+  },
+  'targets': [
+    {
+      'target_name': 'core',
+      'product_name': 'mbgl-core',
+      'type': 'static_library',
+      'standalone_static_library': 1,
+      'hard_dependency': 1,
+
+      'sources': [
+        '<!@(find <(DEPTH)/src -name "*.hpp")',
+        '<!@(find <(DEPTH)/src -name "*.cpp")',
+        '<!@(find <(DEPTH)/src -name "*.c")',
+        '<!@(find <(DEPTH)/src -name "*.h")',
+        '<!@(find <(DEPTH)/include -name "*.hpp")',
+        '<!@(find <(DEPTH)/include -name "*.h")',
+        '<!@(find <(DEPTH)/src -name "*.glsl")',
+        '<(SHARED_INTERMEDIATE_DIR)/include/mbgl/util/version.hpp',
+      ],
+
+      'rules': [
+        {
+          'rule_name': 'Build Shaders',
+          'message': 'Building shader',
+          'extension': 'glsl',
+          'inputs': [ '<(DEPTH)/scripts/build-shaders.py' ],
+          'outputs': [ '<(SHARED_INTERMEDIATE_DIR)/include/mbgl/shader/<(RULE_INPUT_ROOT).hpp' ],
+          'action': [ '<@(_inputs)', '<(RULE_INPUT_PATH)', '<(SHARED_INTERMEDIATE_DIR)/include/mbgl/shader/<(RULE_INPUT_ROOT).hpp' ],
+          'process_outputs_as_sources': 1,
+        }
+      ],
+
+      'actions': [
+        {
+          'action_name': 'Build Version Header',
+          'inputs': [ '<(DEPTH)/scripts/build-version.py', ],
+          'outputs': [ '<(SHARED_INTERMEDIATE_DIR)/include/mbgl/util/version.hpp', ],
+          'action': [ '<@(_inputs)', '<(SHARED_INTERMEDIATE_DIR)' ],
+        }
+      ],
+
+      'include_dirs': [
+        'include',
+        'src',
+        '<(SHARED_INTERMEDIATE_DIR)/include',
+      ],
+
+      'variables': {
+        'cflags_cc': [
+          '<@(opengl_cflags)',
+          '<@(boost_cflags)',
+          '<@(geojsonvt_cflags)',
+          '<@(rapidjson_cflags)',
+          '<@(variant_cflags)',
+        ],
+        'cflags': [
+          '<@(opengl_cflags)',
+          '<@(rapidjson_cflags)',
+          '-fPIC'
+        ],
+        'ldflags': [
+          '<@(opengl_ldflags)',
+        ],
+        'libraries': [
+          '<@(geojsonvt_static_libs)',
+        ],
+      },
+
+      'conditions': [
+        ['OS == "mac"', {
+          'xcode_settings': {
+            'OTHER_CPLUSPLUSFLAGS': [ '<@(cflags_cc)' ],
+            'OTHER_CFLAGS': [ '<@(cflags)' ],
+          },
+        }, {
+          'cflags_cc': [ '<@(cflags_cc)' ],
+          'cflags': [ '<@(cflags)' ],
+        }],
+
+        ['headless_lib == "cgl"', {
+          'sources': [
+            'platform/default/headless_display.cpp',
+            'platform/default/headless_view.cpp',
+            'platform/darwin/src/headless_view_cgl.cpp',
+          ],
+
+          'link_settings': {
+            'libraries': [
+              '$(SDKROOT)/System/Library/Frameworks/OpenGL.framework',
+            ],
+          },
+        }],
+
+        ['headless_lib == "eagl"', {
+          'sources': [
+            'platform/default/headless_display.cpp',
+            'platform/default/headless_view.cpp',
+            'platform/darwin/src/headless_view_eagl.mm',
+          ],
+        }],
+
+        ['headless_lib == "glx"', {
+          'sources': [
+            'platform/default/headless_display.cpp',
+            'platform/default/headless_view.cpp',
+            'platform/default/headless_view_glx.cpp',
+          ],
+
+          'cflags_cc': [ '<@(opengl_cflags)' ],
+
+          'link_settings': {
+            'libraries': [ '<@(opengl_ldflags)' ],
+          },
+        }],
+
+        ['loop_lib == "darwin"', {
+          'sources': [
+            'platform/darwin/src/async_task.cpp',
+            'platform/darwin/src/run_loop.cpp',
+            'platform/darwin/src/timer.cpp',
+          ],
+        }],
+
+        ['loop_lib == "android"', {
+          'sources': [
+            'platform/android/src/async_task.cpp',
+            'platform/android/src/run_loop.cpp',
+            'platform/android/src/timer.cpp',
+          ],
+        }],
+
+        ['loop_lib == "uv"', {
+          'sources': [
+            'platform/default/async_task.cpp',
+            'platform/default/run_loop.cpp',
+            'platform/default/timer.cpp',
+          ],
+
+          'cflags_cc': [
+            '<@(libuv_cflags)',
+          ],
+
+          'link_settings': {
+            'libraries': [
+              '<@(libuv_static_libs)',
+              '<@(libuv_ldflags)',
+            ],
+          },
+        }],
+      ],
+
+      'link_settings': {
+        'conditions': [
+          ['OS == "mac"', {
+            'libraries': [ '<@(libraries)' ],
+            'xcode_settings': { 'OTHER_LDFLAGS': [ '<@(ldflags)' ] }
+          }, {
+            'libraries': [ '<@(libraries)', '<@(ldflags)' ],
+          }]
+        ],
+      },
+    },
+    {
+      'target_name': 'copy_certificate_bundle',
+      'type': 'none',
+      'hard_dependency': 1,
+      'copies': [{
+        'files': [ 'common/ca-bundle.crt' ],
+        'destination': '<(PRODUCT_DIR)'
+      }],
+    },
+  ],
+}