add vcpkg, ninja

Author: samansmink

README.md

@@ -1,6 +1,6 @@
 # DuckDB C/C++ extension template
-This is an **experimental** template for C or C++ based extensions based on the C Extension API of DuckDB. Note that this
-is a different template from 
+This is an **experimental** template for C/C++ based extensions that link with the **C Extension API** of DuckDB. Note that this
+is different from https://github.com/duckdb/extension-template, which links against the C++ API of DuckDB.
 
 Features:
 - No DuckDB build required
@@ -23,6 +23,7 @@ tooling to make life a little easier and to be able to share CI/CD infrastructur
 - [Make](https://www.gnu.org/software/make)
 - CMake
 - Git
+- (Optional) Ninja + ccache
 
 Installing these dependencies will vary per platform:
 - For Linux, these come generally pre-installed or are available through the distro-specific package manager.
@@ -47,6 +48,14 @@ to the `build/debug` directory.
 
 To create optimized release binaries, simply run `make release` instead.
 
+### Faster builds
+We recommend to install Ninja and Ccache for building as this can have a significant speed boost during development. After installing, ninja can be used 
+by running:
+```shell
+make clean
+GEN=ninja make debug
+```
+
 ## Testing
 This extension uses the DuckDB Python client for testing. This should be automatically installed in the `make configure` step.
 The tests themselves are written in the SQLLogicTest format, just like most of DuckDB's tests. A sample test can be found in

duckdb_capi/README.md

@@ -1,6 +1,6 @@
 # DuckDB C API Headers
-This directory contains the C API headers of DuckDB. These headers should be of the same 
-DuckDB version as is specified in `Makefile`. Note that these headers can be updated automatically 
+This directory contains the C API headers of DuckDB. These headers should generally match the `MINIMUM_DUCKDB_VERSION` 
+that is specified in the `Makefile`. Note that these headers can be updated automatically 
 to match the `MINIMUM_DUCKDB_VERSION` makefile variable by running (assuming the default makefile setup):
 
 ```shell

duckdb_extension_c.Makefile

@@ -8,18 +8,44 @@
 #	MINIMUM_DUCKDB_VERSION_MINOR : minor version
 #	MINIMUM_DUCKDB_VERSION_PATCH : patch version
 #	CMAKE_EXTRA_BUILD_FLAGS      : additional CMake flags to pass
+#	VCPKG_TOOLCHAIN_PATH         : path to vcpkg toolchain
+#	VCPKG_TARGET_TRIPLET         : vcpkg triplet to override
+#	GEN                          : allow specifying ninja as generator
 
 
 .PHONY: build_extension_library_debug build_extension_library_release update_duckdb_headers
 
+#############################################
+### Base config
+#############################################
+
 # Create build params to pass name and version
 CMAKE_VERSION_PARAMS = -DEXTENSION_NAME=$(EXTENSION_NAME)
-CMAKE_VERSION_PARAMS += -DMINIMUM_DUCKDB_VERSION=$(MINIMUM_DUCKDB_VERSION_MAJOR)
+CMAKE_VERSION_PARAMS += -DMINIMUM_DUCKDB_VERSION_MAJOR=$(MINIMUM_DUCKDB_VERSION_MAJOR)
 CMAKE_VERSION_PARAMS += -DMINIMUM_DUCKDB_VERSION_MINOR=$(MINIMUM_DUCKDB_VERSION_MINOR)
 CMAKE_VERSION_PARAMS += -DMINIMUM_DUCKDB_VERSION_PATCH=$(MINIMUM_DUCKDB_VERSION_PATCH)
 
 CMAKE_BUILD_FLAGS = $(CMAKE_VERSION_PARAMS) $(CMAKE_EXTRA_BUILD_FLAGS)
 
+#############################################
+### Vcpkg
+#############################################
+
+ifneq ("${VCPKG_TOOLCHAIN_PATH}", "")
+	CMAKE_BUILD_FLAGS += -DCMAKE_TOOLCHAIN_FILE='${VCPKG_TOOLCHAIN_PATH}'
+endif
+ifneq ("${VCPKG_TARGET_TRIPLET}", "")
+	CMAKE_BUILD_FLAGS += -DVCPKG_TARGET_TRIPLET='${VCPKG_TARGET_TRIPLET}'
+endif
+
+#############################################
+### Ninja
+#############################################
+
+ifeq ($(GEN),ninja)
+	CMAKE_BUILD_FLAGS += -G "Ninja"
+endif
+
 #############################################
 ### Rust Build targets
 #############################################

src/capi_quack.cpp

@@ -1,4 +1,5 @@
 #include "duckdb_extension.h"
+
 #include "add_numbers.h"
 
 DUCKDB_EXTENSION_ENTRYPOINT(duckdb_connection connection, duckdb_extension_info info, duckdb_extension_access *access) {