From c2e83613f26603b2f9361e104b6e87013346355b Mon Sep 17 00:00:00 2001
From: Kyle Isom <kyle@imap.cc>
Date: Fri, 13 Oct 2023 04:23:34 -0700
Subject: [PATCH] initial import

---
 .gitignore |  18 ++++++
 Makefile   |  45 ++++++++++++++
 rcpp.cc    | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 233 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 rcpp.cc

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bd03c9f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,18 @@
+.cmake
+.trunk
+.vc
+.vs
+.vscode
+
+*.a
+*.o
+*.bin
+*.pc
+build
+core
+core.*
+cmake-build-*
+tags
+
+rcpp
+
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..4c665bb
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,45 @@
+CC :=		clang
+CXX := 		clang++
+CXXFLAGS :=	-std=c++17 -g
+# CXXFLAGS +=	-Werror -Wall -Wextra -g -fsanitize=address
+LDFLAGS :=	
+SOURCE_DIR ?=	"/mnt/Kyle/Documents/Fonts/Equity + Concourse Standard + Triplicate"
+TARGET_DIR ?=	"$(HOME)/.local/share/fonts"
+
+SOURCES :=	rcpp.cc
+OBJS := 	$(patsubst %.cc,%.o,$(filter %.cc,$(SOURCES)))
+TARGET :=	rcpp
+
+.PHONY: all
+all: tags $(TARGET) 
+
+.PHONY: run
+run: $(TARGET)
+	./$(TARGET) '.+\.ttf$$' $(SOURCE_DIR) $(TARGET_DIR)
+
+.PHONY: cmake
+cmake: build
+	cd build && cmake --config Debug --build ..
+
+build:
+	mkdir -p build
+	
+.PHONY:
+clean:
+	rm -f *.o $(TARGET)
+
+tags: $(SOURCES)
+	ctags -o $@ $(SOURCES)
+
+$(TARGET): $(OBJS)
+	$(CXX) -o $@ $(CXXFLAGS) $(LDFLAGS) $(OBJS)
+
+
+.PHONY: cclean
+cclean:
+	rm -r build cmake-build-*
+
+print-%: ; @echo '$(subst ','\'',$*=$($*))'
+
+%.o:%.cc
+	$(CXX) -c -o $@ $(CXXFLAGS) $<
diff --git a/rcpp.cc b/rcpp.cc
new file mode 100644
index 0000000..2c7e204
--- /dev/null
+++ b/rcpp.cc
@@ -0,0 +1,170 @@
+///
+/// \file rcpp.cc
+/// \author kyle 
+/// \created 2023-10-12
+/// \brief rcpp is a recursive copy by pattern program.
+///
+/// \section COPYRIGHT
+///
+/// Copyright 2023 K. Isom <kyle@imap.cc>
+///
+/// Permission to use, copy, modify, and/or distribute this software for
+/// any purpose with or without fee is hereby granted, provided that
+/// the above copyright notice and this permission notice appear in all
+/// copies.
+///
+/// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+/// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+/// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+/// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+/// DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+/// OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+/// TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+/// PERFORMANCE OF THIS SOFTWARE.
+///
+
+
+#include <filesystem>
+#include <fstream>
+#include <iostream>
+#include <regex>
+
+
+#define ALIAS_FS	namespace fs = std::filesystem
+typedef std::filesystem::path	Path;
+
+
+#ifdef NO_TRACE
+static std::ofstream	null("/dev/null");
+#define TRACE	null
+#else
+#define TRACE	std::cout
+#endif
+
+
+
+int
+preflightDirectory(Path dst)
+{
+	ALIAS_FS;
+	if (!fs::exists(dst)) {
+		fs::create_directory(dst);
+	} else if (!fs::is_directory(dst)) {
+		return -1;
+	}
+
+	return 0;
+}
+
+
+int
+preflightChecks(Path dst, Path src)
+{
+	ALIAS_FS;
+
+	if (preflightDirectory(dst) != 0) {
+		return -1;
+	}
+
+	if (!fs::exists(src)) {
+		return -1;
+	}
+
+	if (!fs::is_regular_file(src)) {
+		return -1;
+	}
+
+	return 0;
+}
+
+int
+copyToPath(Path dst, Path src)
+{
+	ALIAS_FS;
+
+	TRACE << "copyToPath " << dst << " " << src << "\n";
+
+	if (preflightChecks(dst, src)) {
+		return -1;
+	}
+
+	Path dstFile = dst / src.filename();
+	TRACE << "destination file: " << dstFile << "\n";
+
+	fs::copy(src, dst, fs::copy_options::update_existing);
+	return 0;
+}
+
+
+int
+maybeCopyPattern(Path dst, Path entry, std::regex &pattern)
+{
+	ALIAS_FS;
+
+	TRACE << "maybeCopyPattern " << entry << "\n";
+	if (!fs::is_regular_file(entry)) {
+		TRACE << "\tnot a file\n";
+		return 0;
+	}
+
+	if (!std::regex_search(entry.string(), pattern)) {
+		TRACE << "\tpattern doesn't match\n";
+		return 0;
+	}
+
+	return (copyToPath(dst, entry));
+}
+
+
+
+int
+recursiveCopyPattern(Path &dst, Path &src, std::regex &pattern)
+{
+	ALIAS_FS;
+
+	if (!fs::exists(src)) {
+		return -1;
+	} 		
+
+	if (!fs::is_directory(src)) {
+		return -1;
+	}
+
+	for (auto entry : fs::recursive_directory_iterator(src)) {
+		TRACE << "found " << entry << "\n";
+		if (maybeCopyPattern(dst, entry, pattern)) {
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+
+int
+main(int argc, char *argv[])
+{
+	ALIAS_FS;
+
+	auto regexOptions = std::regex_constants::optimize;
+	if (argc < 4) {
+		std::cerr << "Usage: rcpp pattern files... destination\n";
+	}
+
+	auto pattern = std::string(argv[1]);
+	auto destDir = fs::absolute(fs::path(argv[argc-1]));
+	bool value;
+	
+	TRACE << "argc: " << argc << "\n";
+
+	auto rePattern = std::regex(pattern);
+	for (int i = 2; i < argc-1; i++) {
+		TRACE << "[" << i << "] consider " << argv[i] << "\n";
+		auto src = fs::path(argv[i]);
+		if (recursiveCopyPattern(destDir, src, rePattern) != 0) {
+			TRACE << "failed\n";
+		}
+	}
+
+	return 0;
+}