Eliminate CMake; flatten directory structure

CMake is probably more trouble than it’s worth for this project.
Replace it with a hand-rolled Ninja file.

13 files changed, 48 insertions, 113 deletions

diff --git a/.gitignore b/.gitignore
index 995babd..723499b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,10 +3,10 @@
 \#*
 .\#*
 
-# CMake
-Debug/
-Release/
-
+# Ninja
+.ninja_*
+*.o
+scoville
 
 # Local Variables:
 # mode: conf
diff --git a/.mailmap b/.mailmap
index 9871667..c1e7839 100644
--- a/.mailmap
+++ b/.mailmap
@@ -1 +1,2 @@
-<benjamin@barenblat.name> <bbaren@mit.edu>
+<bbarenblat@gmail.com> <benjamin@barenblat.name>
+<bbarenblat@gmail.com> <bbaren@mit.edu>
diff --git a/CMakeLists.txt b/CMakeLists.txt
deleted file mode 100644
index 5862df7..0000000
--- a/CMakeLists.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-# Copyright 2016 Benjamin Barenblat
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may not
-# use this file except in compliance with the License.  You may obtain a copy of
-# the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
-# License for the specific language governing permissions and limitations under
-# the License.
-
-cmake_policy(VERSION 3.0.2)
-cmake_minimum_required(VERSION 3.0)
-
-project(
-  scoville
-  VERSION 0.0.0
-  LANGUAGES CXX
-)
-
-set(CMAKE_CXX_COMPILER clang++)
-
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FORTIFY_SOURCE=2")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_GLIBCXX_DEBUG -D_GLIBCXX_DEBUG_PEDANTIC")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftrapv")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-strict-aliasing")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fstack-protector-strong --param=ssp-buffer-size=4")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Weverything -Wno-c++98-compat")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-padded")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-weak-vtables")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-macros")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIE")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fuse-cxa-atexit")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pipe")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffunction-sections -fdata-sections")
-
-set(CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG")  # Use -O2, not -O3
-
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-Bsymbolic-functions")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pie")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,now")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,relro")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--hash-style=gnu")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--no-copy-dt-needed-entries")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--as-needed")
-
-add_subdirectory(src)
diff --git a/build.ninja b/build.ninja
new file mode 100644
index 0000000..0b5be18
--- /dev/null
+++ b/build.ninja
@@ -0,0 +1,42 @@
+# Copyright 2020 Benjamin Barenblat
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+ninja_required_version = 1.3
+
+cxx = clang++
+cflags = -O2 -DNDEBUG -D_FORTIFY_SOURCE -D_GLIBCXX_DEBUG $
+    -D_GLIBCXX_DEBUG_PEDANTIC -std=c++14 -ftrapv -fno-strict-aliasing $
+    -fstack-protector-strong --param=ssp-buffer-size=4 -Weverything $
+    -Wno-c++98-compat -Wno-padded -Wno-weak-vtables -Wno-unused-macros -fPIE $
+    -fno-rtti -fuse-cxa-atexit -pipe -ffunction-sections -fdata-sections $
+    -D_FILE_OFFSET_BITS=64 -I/usr/include/fuse
+ldflags = -Wl,--gc-sections -Wl,-Bsymbolic-functions -pie -Wl,-z,now -Wl,-z,relro -Wl,--hash-style=gnu -Wl,--no-copy-dt-needed-entries -Wl,--as-needed -pthread
+libs = -lfuse -lglog -lgflags
+
+rule cxx
+  command = $cxx -MMD -MT $out -MF $out.d $cflags -c $in -o $out
+  description = CXX $out
+  depfile = $out.d
+  deps = gcc
+
+rule link
+  command = $cxx $ldflags -o $out $in $libs
+  description = LINK $out
+
+build encoding.o: cxx encoding.cc
+build operations.o: cxx operations.cc
+build posix_extras.o: cxx posix_extras.cc
+build scoville.o: cxx scoville.cc
+
+build scoville: link encoding.o operations.o posix_extras.o scoville.o
diff --git a/src/encoding.cc b/encoding.cc
index 702b2c4..702b2c4 100644
--- a/src/encoding.cc
+++ b/encoding.cc
diff --git a/src/encoding.h b/encoding.h
index d6e72ea..d6e72ea 100644
--- a/src/encoding.h
+++ b/encoding.h
diff --git a/src/fuse.h b/fuse.h
index f7d012f..f7d012f 100644
--- a/src/fuse.h
+++ b/fuse.h
diff --git a/src/operations.cc b/operations.cc
index 99817a1..99817a1 100644
--- a/src/operations.cc
+++ b/operations.cc
diff --git a/src/operations.h b/operations.h
index 33e0767..33e0767 100644
--- a/src/operations.h
+++ b/operations.h
diff --git a/src/posix_extras.cc b/posix_extras.cc
index 3e916ad..3e916ad 100644
--- a/src/posix_extras.cc
+++ b/posix_extras.cc
diff --git a/src/posix_extras.h b/posix_extras.h
index 9dec22d..9dec22d 100644
--- a/src/posix_extras.h
+++ b/posix_extras.h
diff --git a/src/scoville.cc b/scoville.cc
index 2eff02e..2eff02e 100644
--- a/src/scoville.cc
+++ b/scoville.cc
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
deleted file mode 100644
index 3f1fb15..0000000
--- a/src/CMakeLists.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-# Copyright 2016 Benjamin Barenblat
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may not
-# use this file except in compliance with the License.  You may obtain a copy of
-# the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
-# License for the specific language governing permissions and limitations under
-# the License.
-
-include(FindPkgConfig)
-
-pkg_check_modules(FUSE REQUIRED fuse)
-pkg_check_modules(GFLAGS REQUIRED libgflags)
-pkg_check_modules(GLOG REQUIRED libglog)
-
-link_directories(
-  ${FUSE_LIBRARY_DIRS}
-  ${GFLAGS_LIBRARY_DIRS}
-  ${GLOG_LIBRARY_DIRS}
-)
-
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${FUSE_CFLAGS_OTHER}")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GFLAGS_CFLAGS_OTHER}")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GLOG_CFLAGS_OTHER}")
-
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${FUSE_LDFLAGS_OTHER}")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${GFLAGS_LDFLAGS_OTHER}")
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${GLOG_LDFLAGS_OTHER}")
-
-add_executable(
-  scoville
-  encoding.cc
-  operations.cc
-  posix_extras.cc
-  scoville.cc
-)
-
-target_include_directories(
-  scoville
-  SYSTEM PRIVATE ${FUSE_INCLUDE_DIRS}
-  SYSTEM PRIVATE ${GFLAGS_INCLUDE_DIRS}
-  SYSTEM PRIVATE ${GLOG_INCLUDE_DIRS}
-)
-
-target_link_libraries(
-  scoville
-  ${FUSE_LIBRARIES}
-  ${GFLAGS_LIBRARIES}
-  ${GLOG_LIBRARIES}
-)