From 29f53d8f4f2335e61bf6418ab8958dac3282077a Mon Sep 17 00:00:00 2001
From: Matt Massicotte <85322+mattmassicotte@users.noreply.github.com>
Date: Fri, 6 May 2022 12:01:49 -0400
Subject: [PATCH] Makefile and C bindings (#38)

---
 .gitignore                   |  6 +++
 Makefile                     | 99 ++++++++++++++++++++++++++++++++++++
 bindings/c/tree-sitter.h.in  | 16 ++++++
 bindings/c/tree-sitter.pc.in | 11 ++++
 4 files changed, 132 insertions(+)
 create mode 100644 Makefile
 create mode 100644 bindings/c/tree-sitter.h.in
 create mode 100644 bindings/c/tree-sitter.pc.in

diff --git a/.gitignore b/.gitignore
index 8edaf8d..4decba2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,9 @@ build
 package-lock.json
 target
 Cargo.lock
+*.a
+*.dylib
+*.so
+*.o
+bindings/c/*.h
+bindings/c/*.pc
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c4d127a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,99 @@
+VERSION := 0.19.0
+
+# Repository
+SRC_DIR := src
+
+PARSER_REPO_URL ?= $(shell git -C $(SRC_DIR) remote get-url origin )
+# the # in the sed pattern has to be escaped or it will be interpreted as a comment
+PARSER_NAME ?= $(shell basename $(PARSER_REPO_URL) | cut -d '-' -f3 | sed 's\#.git\#\#')
+UPPER_PARSER_NAME := $(shell echo $(PARSER_NAME) | tr a-z A-Z )
+
+# install directory layout
+PREFIX ?= /usr/local
+INCLUDEDIR ?= $(PREFIX)/include
+LIBDIR ?= $(PREFIX)/lib
+PCLIBDIR ?= $(LIBDIR)/pkgconfig
+
+# collect C++ sources, and link if necessary
+CPPSRC := $(wildcard $(SRC_DIR)/*.cc)
+
+ifeq (, $(CPPSRC))
+	ADDITIONALLIBS := 
+else
+	ADDITIONALLIBS := -lc++
+endif
+
+# collect sources
+SRC := $(wildcard $(SRC_DIR)/*.c)
+SRC += $(CPPSRC)
+OBJ := $(addsuffix .o,$(basename $(SRC)))
+
+# ABI versioning
+SONAME_MAJOR := 0
+SONAME_MINOR := 0
+
+CFLAGS ?= -O3 -Wall -Wextra -I$(SRC_DIR)
+CXXFLAGS ?= -O3 -Wall -Wextra -I$(SRC_DIR)
+override CFLAGS += -std=gnu99 -fPIC
+override CXXFLAGS += -fPIC
+
+# OS-specific bits
+ifeq ($(shell uname),Darwin)
+	SOEXT = dylib
+	SOEXTVER_MAJOR = $(SONAME_MAJOR).dylib
+	SOEXTVER = $(SONAME_MAJOR).$(SONAME_MINOR).dylib
+	LINKSHARED := $(LINKSHARED)-dynamiclib -Wl,
+	ifneq ($(ADDITIONALLIBS),)
+	LINKSHARED := $(LINKSHARED)$(ADDITIONALLIBS),
+	endif
+	LINKSHARED := $(LINKSHARED)-install_name,$(LIBDIR)/libtree-sitter-$(PARSER_NAME).$(SONAME_MAJOR).dylib,-rpath,@executable_path/../Frameworks
+else
+	SOEXT = so
+	SOEXTVER_MAJOR = so.$(SONAME_MAJOR)
+	SOEXTVER = so.$(SONAME_MAJOR).$(SONAME_MINOR)
+	LINKSHARED := $(LINKSHARED)-shared -Wl,
+	ifneq ($(ADDITIONALLIBS),)
+	LINKSHARED := $(LINKSHARED)$(ADDITIONALLIBS)
+	endif
+	LINKSHARED := $(LINKSHARED)-soname,libtree-sitter-$(PARSER_NAME).so.$(SONAME_MAJOR)
+endif
+ifneq (,$(filter $(shell uname),FreeBSD NetBSD DragonFly))
+	PCLIBDIR := $(PREFIX)/libdata/pkgconfig
+endif
+				
+all: libtree-sitter-$(PARSER_NAME).a libtree-sitter-$(PARSER_NAME).$(SOEXTVER) bindings/c/$(PARSER_NAME).h
+
+libtree-sitter-$(PARSER_NAME).a: $(OBJ)
+	$(AR) rcs $@ $^
+
+libtree-sitter-$(PARSER_NAME).$(SOEXTVER): $(OBJ)
+	$(CC) $(LDFLAGS) $(LINKSHARED) $^ $(LDLIBS) -o $@
+	ln -sf $@ libtree-sitter-$(PARSER_NAME).$(SOEXT)
+	ln -sf $@ libtree-sitter-$(PARSER_NAME).$(SOEXTVER_MAJOR)
+
+bindings/c/$(PARSER_NAME).h:
+	sed -e 's|@UPPER_PARSERNAME@|$(UPPER_PARSER_NAME)|' \
+		-e 's|@PARSERNAME@|$(PARSER_NAME)|' \
+		bindings/c/tree-sitter.h.in > $@
+
+install: all
+	install -d '$(DESTDIR)$(LIBDIR)'
+	install -m755 libtree-sitter-$(PARSER_NAME).a '$(DESTDIR)$(LIBDIR)'/libtree-sitter-$(PARSER_NAME).a
+	install -m755 libtree-sitter-$(PARSER_NAME).$(SOEXTVER) '$(DESTDIR)$(LIBDIR)'/libtree-sitter-$(PARSER_NAME).$(SOEXTVER)
+	ln -sf libtree-sitter-$(PARSER_NAME).$(SOEXTVER) '$(DESTDIR)$(LIBDIR)'/libtree-sitter-$(PARSER_NAME).$(SOEXTVER_MAJOR)
+	ln -sf libtree-sitter-$(PARSER_NAME).$(SOEXTVER) '$(DESTDIR)$(LIBDIR)'/libtree-sitter-$(PARSER_NAME).$(SOEXT)
+	install -d '$(DESTDIR)$(INCLUDEDIR)'/tree_sitter
+	install -m644 bindings/c/$(PARSER_NAME).h '$(DESTDIR)$(INCLUDEDIR)'/tree_sitter/
+	install -d '$(DESTDIR)$(PCLIBDIR)'
+	sed -e 's|@LIBDIR@|$(LIBDIR)|;s|@INCLUDEDIR@|$(INCLUDEDIR)|;s|@VERSION@|$(VERSION)|' \
+	    -e 's|=$(PREFIX)|=$${prefix}|' \
+	    -e 's|@PREFIX@|$(PREFIX)|' \
+	    -e 's|@ADDITIONALLIBS@|$(ADDITIONALLIBS)|' \
+		-e 's|@PARSERNAME@|$(PARSER_NAME)|' \
+		-e 's|@PARSERREPOURL@|$(PARSER_REPO_URL)|' \
+	    bindings/c/tree-sitter.pc.in > '$(DESTDIR)$(PCLIBDIR)'/tree-sitter-$(PARSER_NAME).pc
+
+clean:
+	rm -f $(OBJ) libtree-sitter-$(PARSER_NAME).a libtree-sitter-$(PARSER_NAME).$(SOEXT) libtree-sitter-$(PARSER_NAME).$(SOEXTVER_MAJOR) libtree-sitter-$(PARSER_NAME).$(SOEXTVER) bindings/c/$(PARSER_NAME).h
+
+.PHONY: all install clean
diff --git a/bindings/c/tree-sitter.h.in b/bindings/c/tree-sitter.h.in
new file mode 100644
index 0000000..e19269f
--- /dev/null
+++ b/bindings/c/tree-sitter.h.in
@@ -0,0 +1,16 @@
+#ifndef TREE_SITTER_@UPPER_PARSERNAME@_H_
+#define TREE_SITTER_@UPPER_PARSERNAME@_H_
+
+#include <tree_sitter/parser.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern TSLanguage *tree_sitter_@PARSERNAME@();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // TREE_SITTER_@UPPER_PARSERNAME@_H_
diff --git a/bindings/c/tree-sitter.pc.in b/bindings/c/tree-sitter.pc.in
new file mode 100644
index 0000000..8c2baa4
--- /dev/null
+++ b/bindings/c/tree-sitter.pc.in
@@ -0,0 +1,11 @@
+prefix=@PREFIX@
+libdir=@LIBDIR@
+includedir=@INCLUDEDIR@
+additionallibs=@ADDITIONALLIBS@
+
+Name: tree-sitter-@PARSERNAME@
+Description: A tree-sitter grammar for the @PARSERNAME@ programming language.
+URL: @PARSERREPOURL@
+Version: @VERSION@
+Libs: -L${libdir} ${additionallibs} -ltree-sitter-@PARSERNAME@
+Cflags: -I${includedir}