switch to the single-header Rapid YAML, upgrade to v0.5.0

Rapid YAML has an extensive CMake based build, which is probably ok but
might be a pain to use from our other build systems (e.g., Bazel, which
we probably want to continue supporting).

However, Rapid YAML also provides a single-file amalgamation (aka unity
build), which is of course much easier to embed.

Author: johnbartholomew

CMakeLists.txt

@@ -12,6 +12,7 @@ option(BUILD_STATIC_LIBS "Build a static libjsonnet." ON)
 option(BUILD_SHARED_BINARIES "Link binaries to the shared libjsonnet instead of the static one." OFF)
 option(USE_SYSTEM_GTEST "Use system-provided gtest library" OFF)
 option(USE_SYSTEM_JSON "Use the system-provided json library" OFF)
+# TODO: Support using a system Rapid YAML install.
 set(GLOBAL_OUTPUT_PATH_SUFFIX "" CACHE STRING
     "Output artifacts directory.")
 
@@ -109,6 +110,7 @@ link_directories(${GLOBAL_OUTPUT_PATH})
 include_directories(
     include
     third_party/md5
+    third_party/rapidyaml
     core
     cpp)
 
@@ -120,7 +122,7 @@ endif()
 add_subdirectory(include)
 add_subdirectory(stdlib)
 add_subdirectory(third_party/md5)
-add_subdirectory(third_party/rapidyaml/rapidyaml ryml)
+add_subdirectory(third_party/rapidyaml)
 add_subdirectory(core)
 add_subdirectory(cpp)
 add_subdirectory(cmd)

Makefile

@@ -28,10 +28,10 @@ OPT ?= -O3
 PREFIX ?= /usr/local
 
 CXXFLAGS ?= -g $(OPT) -Wall -Wextra -Woverloaded-virtual -pedantic -std=c++17 -fPIC
-CXXFLAGS += -Iinclude -Ithird_party/md5 -Ithird_party/json -Ithird_party/rapidyaml/rapidyaml/src/ -Ithird_party/rapidyaml/rapidyaml/ext/c4core/src/
+CXXFLAGS += -Iinclude -Ithird_party/md5 -Ithird_party/json -Ithird_party/rapidyaml/
 CFLAGS ?= -g $(OPT) -Wall -Wextra -pedantic -std=c99 -fPIC
 CFLAGS += -Iinclude
-MAKEDEPENDFLAGS += -Iinclude -Ithird_party/md5 -Ithird_party/json -Ithird_party/rapidyaml/rapidyaml/src/ -Ithird_party/rapidyaml/rapidyaml/ext/c4core/src/
+MAKEDEPENDFLAGS += -Iinclude -Ithird_party/md5 -Ithird_party/json
 LDFLAGS ?=
 
 
@@ -45,8 +45,7 @@ SOVERSION = 0
 ################################################################################
 
 RAPIDYAML_SRC = \
-	$(wildcard third_party/rapidyaml/rapidyaml/src/c4/yml/*.cpp) \
-	$(wildcard third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/*.cpp)
+	third_party/rapidyaml/rapidyaml.cpp
 
 LIB_SRC = \
 	core/desugarer.cpp \

core/vm.cpp

@@ -26,8 +26,7 @@ limitations under the License.
 #include "json.hpp"
 #include "md5.h"
 #include "parser.h"
-#include "ryml_std.hpp" // include this before any other ryml header
-#include "ryml.hpp"
+#include "ryml_all.hpp"
 #include "state.h"
 #include "static_analysis.h"
 #include "string_utils.h"
@@ -1637,7 +1636,7 @@ class Interpreter {
     }
 
     const ryml::Tree treeFromString(const std::string& s) {
-        return ryml::parse(c4::to_csubstr(s));
+        return ryml::parse_in_arena(ryml::to_csubstr(s));
     }
 
     const std::vector<std::string> split(const std::string& s, const std::string& delimiter) {

setup.py

@@ -32,18 +32,7 @@
     'core/string_utils.o',
     'core/vm.o',
     'third_party/md5/md5.o',
-    'third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/char_traits.o',
-    'third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/base64.o',
-    'third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/language.o',
-    'third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/memory_util.o',
-    'third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/format.o',
-    'third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/time.o',
-    'third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/memory_resource.o',
-    'third_party/rapidyaml/rapidyaml/ext/c4core/src/c4/error.o',
-    'third_party/rapidyaml/rapidyaml/src/c4/yml/parse.o',
-    'third_party/rapidyaml/rapidyaml/src/c4/yml/preprocess.o',
-    'third_party/rapidyaml/rapidyaml/src/c4/yml/common.o',
-    'third_party/rapidyaml/rapidyaml/src/c4/yml/tree.o',
+    'third_party/rapidyaml/rapidyaml.o',
 ]
 
 MODULE_SOURCES = ['python/_jsonnet.c']

third_party/rapidyaml/BUILD

@@ -1,43 +1,15 @@
 licenses(["permissive"])
-package(default_visibility = ["//visibility:private"])
-
-cc_library(
-    name = "debugbreak",
-    hdrs = glob(["rapidyaml/ext/c4core/src/c4/ext/debugbreak/debugbreak.h"]),
-    srcs = [],
-)
-
-cc_library(
-    name = "fastfloat",
-    includes = ["rapidyaml/ext/c4core/src/c4/ext"],
-    hdrs = glob(["rapidyaml/ext/c4core/src/c4/ext/fast_float.hpp", "rapidyaml/ext/c4core/src/c4/ext/fast_float/**/*.h"]),
-    srcs = [],
-)
 
-cc_library(
-    name = "c4core",
-    deps = [
-      ":debugbreak",
-      ":fastfloat",
-    ],
-    includes = ["rapidyaml/ext/c4core/src"],
-    hdrs = glob(
-        ["rapidyaml/ext/c4core/src/**/*.hpp"],
-        exclude = ["rapidyaml/ext/c4core/src/c4/ext/**/*"],
-    ),
-    srcs = glob(
-        ["rapidyaml/ext/c4core/src/**/*.cpp"],
-        exclude = ["rapidyaml/ext/c4core/src/c4/ext/**/*"],
-    ),
-)
+package(default_visibility = ["//visibility:private"])
 
 cc_library(
     name = "ryml",
-    visibility = ["//visibility:public"],
-    deps = [
-      ":c4core",
+    srcs = [
+        "rapidyaml.cpp",
+    ],
+    hdrs = [
+        "ryml_all.hpp",
     ],
-    includes = ["rapidyaml/src"],
-    hdrs = glob(["rapidyaml/src/**/*.hpp"]),
-    srcs = glob(["rapidyaml/src/**/*.cpp"]),
+    includes = ["."],
+    visibility = ["//visibility:public"],
 )

third_party/rapidyaml/CMakeLists.txt

@@ -0,0 +1 @@
+add_library(ryml STATIC rapidyaml.cpp ryml_all.hpp)

third_party/rapidyaml/README.md

@@ -1,12 +1,8 @@
 # Vendoring
 
-```
-git clone \
-    --depth=1 \
-    --branch=master \
-    --recursive \
-    [email protected]:biojppm/rapidyaml \
-    third_party/rapidyaml/rapidyaml \
-&& \
-rm -rf third_party/rapidyaml/rapidyaml/.git
-```
+This uses the 'single header' release of Rapid YAML.
+Download from: https://github.com/biojppm/rapidyaml/releases/tag/v0.5.0
+
+`rapidyaml-0.5.0.hpp` (renamed to `ryml_all.hpp`)
+
+rapidyaml.cpp instantiates the library as a single translation unit.

third_party/rapidyaml/rapidyaml.cpp

@@ -0,0 +1,2 @@
+#define RYML_SINGLE_HDR_DEFINE_NOW
+#include "ryml_all.hpp"