Adds CMake support

.gitignore

@@ -16,9 +16,11 @@
 *.sln
 *.exe
 *.txt
+!CMakeLists.txt
 *.db-shm
 *.db-wal
 *.opendb
 *.vsidx
 *.lock
 .editorconfig
+/build

CMakeLists.txt

@@ -0,0 +1,36 @@
+project(cppfront)
+cmake_minimum_required(VERSION 3.20)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED YES)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+add_executable(cppfront source/cppfront.cpp)
+
+# The test scripts are generated in two steps - configure to replace the
+# variables, - geneated the configured output to replace the generator
+# expressions.
+configure_file(regression-tests/run-tests.bat.in
+               ${CMAKE_BINARY_DIR}/run-tests.bat.in @ONLY)
+
+file(
+  GENERATE
+  OUTPUT run-tests.bat
+  INPUT ${CMAKE_BINARY_DIR}/run-tests.bat.in)
+
+configure_file(regression-tests/run-tests.sh.in
+               ${CMAKE_BINARY_DIR}/run-tests.sh.in @ONLY)
+
+file(
+  GENERATE
+  OUTPUT run-tests.sh
+  INPUT ${CMAKE_BINARY_DIR}/run-tests.sh.in
+  FILE_PERMISSIONS
+  OWNER_READ
+  OWNER_WRITE
+  OWNER_EXECUTE
+  GROUP_READ
+  GROUP_WRITE
+  GROUP_EXECUTE
+  WORLD_READ
+  WORLD_EXECUTE)

README.md

@@ -83,6 +83,10 @@ Cppfront builds with any major C++20 compiler.
 
     clang++-12 cppfront.cpp -std=c++20 -o cppfront
 
+### CMake support
+
+    Alternatively the code can be build using CMake. The build directory will contain the regression test scripts.
+
 ## How do I build my `.cpp2` file?
 
 Run `cppfront your.cpp2`, then run the generated `your.cpp` through any major C++20 compiler after putting `/cppfront/include` in the path so it can find `cpp2util.h`.

regression-tests/run-tests.bat.in

@@ -0,0 +1,17 @@
+@echo off
+copy @CMAKE_SOURCE_DIR@\*.cpp2 .
+set count=0
+for %%f in (mixed-*.cpp2) do (
+    echo Starting cppfront.exe %%f
+    $<TARGET_FILE:cppfront> %%f > %%f.output 2>&1
+    del %%f
+    set /a count+=1
+)
+for %%f in (pure2-*.cpp2) do (
+    echo Starting cppfront.exe %%f -p
+    $<TARGET_FILE:cppfront> %%f -p > %%f.output 2>&1
+    del %%f
+    set /a count+=1
+)
+echo Done: %count% tests
+

regression-tests/run-tests.sh.in

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+set -e
+
+cp @CMAKE_SOURCE_DIR@/regression-tests/*.cpp2 .
+count=0
+
+for f in mixed-*.cpp2
+do
+    echo Starting cppfront $f
+    $<TARGET_FILE:cppfront> $f > $f.output 2>&1
+    rm $f
+    count=$((count+1))
+done
+
+for f in pure2-*.cpp2
+do
+    echo Starting cppfront $f -p
+    $<TARGET_FILE:cppfront> $f -p > $f.output 2>&1
+    rm $f
+    count=$((count+1))
+done
+echo Done: $count tests