From fafd2ad864a293d9da63f2e1cd5d3d793616f254 Mon Sep 17 00:00:00 2001
From: topchetoeu <36534413+TopchetoEU@users.noreply.github.com>
Date: Thu, 26 Jan 2023 16:46:50 +0200
Subject: [PATCH] chore: add lsinc for more efficient makescript

---
 .gitignore         |   4 +-
 scripts/common.mak |   5 ++-
 scripts/ls.mak     |   9 ++++
 scripts/lsproj.mak |   3 --
 src/lsinc.cc       | 109 +++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 123 insertions(+), 7 deletions(-)
 create mode 100644 scripts/ls.mak
 delete mode 100644 scripts/lsproj.mak
 create mode 100644 src/lsinc.cc

diff --git a/.gitignore b/.gitignore
index 0e936b5..715003a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,11 +19,11 @@
 !src/*/**/*.h
 !src/*/**/*.hh
 !src/*.proj
-!src/lsproj.cc
+!src/ls*.cc
 
 !scripts
 !scripts/common.mak
-!scripts/lsproj.mak
+!scripts/ls.mak
 !scripts/install.bat
 !scripts/uninstall.bat
 
diff --git a/scripts/common.mak b/scripts/common.mak
index c9091f3..e5f8973 100644
--- a/scripts/common.mak
+++ b/scripts/common.mak
@@ -1,7 +1,8 @@
 export lsproj = $(bin)/lsproj$(exe)
+export lsinc = $(bin)/lsinc$(exe)
 export flags += "-I$(inc)" -D$(OS) -DPPC_VERSION_MAJOR=$(version-major) -DPPC_VERSION_MINOR=$(version-minor) -DPPC_VERSION_BUILD=$(version-build)
 
-$(shell make -f scripts/lsproj.mak lsproj=$(lsproj) src=$(src) $(lsproj))
+$(shell make -f scripts/ls.mak lsinc=$(lsinc) lsproj=$(lsproj) src=$(src) "flags=$(flags)" all)
 
 rwildcard=$(foreach d, $(wildcard $(1:=/*)),\
 	$(call rwildcard,$d,$2)\
@@ -52,7 +53,7 @@ $(bin)/lib$(lib)%$(so): $$(call frdeps,$$*) $$(call binaries,$$*)
 	$(CXX) -shared -fPIC $(flags) $(call binaries,$*) -o $@ $(ldflags) $(call ldeps,$*) -L$(bin) "-I$(inc)"
 	echo Compiling library '$(notdir $@)'...
 
-$(bin)/tmp/%.o: $(src)/%.cc $(headers)
+$(bin)/tmp/%.o: $(src)/%.cc $(shell $(lsinc) $(inc) $(src)/%.cc)
 	$(call mkdir,$(dir $@))
 	$(CXX) -fPIC -c $(flags) $< -o $@
 	echo - Compiling '$*.cc'...
diff --git a/scripts/ls.mak b/scripts/ls.mak
new file mode 100644
index 0000000..0d4e125
--- /dev/null
+++ b/scripts/ls.mak
@@ -0,0 +1,9 @@
+all: $(lsproj) $(lsinc)
+
+$(lsproj): $(src)/lsproj.cc
+	$(call mkdir,$(dir $@))
+	$(CXX) $(flags) $^ -o $@
+	
+$(lsinc): $(src)/lsinc.cc
+	$(call mkdir,$(dir $@))
+	$(CXX) $(flags) $^ -o $@
\ No newline at end of file
diff --git a/scripts/lsproj.mak b/scripts/lsproj.mak
deleted file mode 100644
index 6d49d5a..0000000
--- a/scripts/lsproj.mak
+++ /dev/null
@@ -1,3 +0,0 @@
-$(lsproj): $(src)/lsproj.cc
-	$(call mkdir,$(dir $@))
-	$(CXX) $^ -o $@
\ No newline at end of file
diff --git a/src/lsinc.cc b/src/lsinc.cc
new file mode 100644
index 0000000..8bb4ebb
--- /dev/null
+++ b/src/lsinc.cc
@@ -0,0 +1,109 @@
+#include <iostream>
+#include <fstream>
+#include <filesystem>
+#include <string>
+#include <vector>
+#include <set>
+#include <algorithm>
+#include <cstring>
+
+using namespace std::string_literals;
+namespace fs = std::filesystem;
+
+static inline void ltrim(std::string &s) {
+    s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](unsigned char ch) {
+        return !std::isspace(ch);
+    }));
+}
+static inline void rtrim(std::string &s) {
+    s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char ch) {
+        return !std::isspace(ch);
+    }).base(), s.end());
+}
+static inline void trim(std::string &s) {
+    rtrim(s);
+    ltrim(s);
+}
+static bool read_line(std::istream &str, std::string &res) {
+    if (str.eof()) return false;
+    std::getline(str, res);
+    trim(res);
+    return true;
+}
+
+fs::path find_file(fs::path original, fs::path include) {
+    if (fs::exists(original)) return original;
+    if (fs::exists(include / original)) return include / original;
+    return original;
+}
+
+bool get_import(std::string line, std::string &import) {
+    if (line.rfind("#include") != 0) return false;
+    line = line.substr(8);
+    trim(line);
+    if (line.length() < 3) throw "Invalid import syntax."s;
+    if (line[0] == '<') return false;
+    if (line[0] == '"') {
+        if (line[line.length() - 1] != '"') throw "Invalid import syntax."s;
+        import = line.substr(1, line.length() - 2);
+        return true;
+    }
+
+    throw "Invalid import syntax."s;
+}
+
+void get_imports(fs::path file, fs::path include, std::set<fs::path> &res) {
+    static std::set<fs::path> parents = { };
+
+    if (!parents.emplace(file).second) {
+        throw "Circular dependency encountered."s;
+    }
+
+    std::ifstream f(file.string());
+    if (f.is_open() && !f.eof()) {
+        std::string line;
+
+        while (read_line(f, line)) {
+            std::string import;
+            if (get_import(line, import)) {
+                auto child = find_file(import, include);
+                res.emplace(child);
+                get_imports(child, include, res);
+            }
+        }
+    }
+
+    parents.erase(file);
+}
+
+int main(int argc, char **argv) {
+    try {
+        argc--;
+        argv++;
+
+        if (argc == 0) {
+            throw "Incorrect usage. Syntax: [inc-path] [files...]."s;
+            return -1;
+        }
+
+        fs::path inc(argv[0]);
+        std::set<fs::path> res;
+
+        for (int i = 1; i < argc; i++) {
+            fs::path file(argv[i]);
+            get_imports(file, inc, res);
+        }
+
+        for (auto &i : res) {
+            std::cout << i.string() << "\n";
+        }
+
+
+        return 0;
+    }
+    catch (std::string err) {
+        std::cerr << "Error: " << err << std::endl;
+    }
+
+    return -1;
+}
\ No newline at end of file