From ff87ea9045a6e0979311ae7b25055d6b53b0a13d Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Fri, 5 Aug 2016 11:09:53 +0200
Subject: o Dropping the native library code, we're all Python now!

---
 cli/generate-header.cpp | 470 +++++++++++++++---------------------------------
 1 file changed, 141 insertions(+), 329 deletions(-)

(limited to 'cli')

diff --git a/cli/generate-header.cpp b/cli/generate-header.cpp
index 1033fc3..6fd64c6 100644
--- a/cli/generate-header.cpp
+++ b/cli/generate-header.cpp
@@ -37,39 +37,51 @@ void usage(const char *reason = nullptr) {
     if (reason) {
         fprintf(stderr, "%s\n", reason);
     }
-    fprintf(stderr, "usage: %s -n <net file> -r <ref> [-o <out file>] [-t <python template>]\n", program);
+    fprintf(stderr, "usage: %s -n <net file> -r <ref> -t <template> [-l <template lib dir>] [-o <out file>]\n",
+            program);
     exit(EX_USAGE);
 }
 
-void parse_args(int argc, char **argv, bool *debug, char **net_filename, char **ref, char **py_template,
-                vector<fs::path> &template_libs, char **out_filename) {
-    *debug = false;
-    *ref = nullptr;
-    *out_filename = nullptr;
-    *py_template = nullptr;
-    *ref = nullptr;
+struct opts {
+    bool debug;
+    string net_filename;
+    string ref;
+    string py_template;
+    opt<string> out_filename;
+    vector<fs::path> template_libs;
+};
+
+struct opts parse_args(int argc, char **argv) {
+    struct opts opts = {
+            .debug = false,
+            .net_filename = "",
+            .ref = "",
+            .py_template = "",
+            .out_filename = nullopt,
+            .template_libs = {},
+    };
 
     int c;
     while ((c = getopt(argc, argv, "Dn:r:o:t:l:")) != -1) {
         switch (c) {
             case 'D':
-                *debug = true;
+                opts.debug = true;
                 break;
             case 'n':
-                *net_filename = optarg;
+                opts.net_filename = optarg;
                 break;
             case 'r':
-                *ref = optarg;
+                opts.ref = optarg;
                 break;
             case 't':
-                *py_template = optarg;
+                opts.py_template = optarg;
                 break;
             case 'l':
-                template_libs.push_back(fs::path(optarg));
+                opts.template_libs.push_back(fs::path(optarg));
                 break;
             case 'o':
                 if (strcmp("-", optarg) != 0) {
-                    *out_filename = optarg;
+                    opts.out_filename = string(optarg);
                 }
                 break;
             default:
@@ -77,182 +89,24 @@ void parse_args(int argc, char **argv, bool *debug, char **net_filename, char **
         }
     }
 
-    if (!*net_filename || !*ref) {
+    if (opts.net_filename.empty() || opts.ref.empty() || opts.py_template.empty()) {
         usage();
     }
-}
-
-class part {
-public:
-    part(const string &name) : name(name) {
-    }
-
-    virtual ~part() {
-    }
-
-    const string name;
-
-    virtual bool generate(stringstream &out, const string &ref, const vector<const net *> usages) = 0;
-};
-
-class arduino_uno : public part {
-public:
-    arduino_uno() : part("ARDUINO_UNO") {}
 
-    ~arduino_uno() {
-    }
-
-    virtual bool generate(stringstream &out, const string &ref, const vector<const net *> usages) override {
-        out << "namespace schematic {" << endl;
-        for (auto &usage: usages) {
-            auto node = usage->node_for_ref(ref);
-
-            if (node->pin >= 7 && node->pin <= 12) {
-                out << "static const int ANALOG_" << usage->name << " = " << (node->pin - 7) << ";" << endl;
-            } else if (node->pin >= 13 && node->pin <= 26) {
-                out << "static const int " << usage->name << " = " << (node->pin - 13) << ";" << endl;
-            }
-        }
-        out << "} // namespace schematic" << endl;
-
-        return true;
-    }
-};
-
-class intel_quark_d2000 : public part {
-public:
-    intel_quark_d2000() : part("INTEL_QUARK_D2000") {}
-
-    ~intel_quark_d2000() {
-    }
-
-    virtual bool generate(stringstream &out, const string &ref, const vector<const net *> usages) override {
-        static map<int, string> gpio_map{
-            {2,  "10"},
-            {3,  "11"},
-            {4,  "12"},
-            {5,  "13"},
-            {6,  "14"},
-            {7,  "15"},
-            {8,  "16"},
-            {9,  "17"},
-            {10, "18"},
-
-            {11, "9"},
-            {13, "20"},
-            {14, "21"},
-            {15, "22"},
-            {16, "23"},
-            {18, "19"},
-
-            {21, "24"},
-
-            {31, "0"},
-            {32, "1"},
-            {33, "2"},
-            {34, "3"},
-            {35, "4"},
-            {36, "5"},
-            {37, "6"},
-            {38, "7"},
-            {39, "8"},
-        };
-
-        out << "#include <stddef.h>" << endl;
-        out << "#include <qm_gpio.h>" << endl;
-        out << endl;
-        out << "enum schematic_direction {" << endl;
-        out << "    schematic_direction_out = 1," << endl;
-        out << "    schematic_direction_in = 2" << endl;
-        out << "};" << endl;;
-
-        for (auto &usage: usages) {
-            auto node = usage->node_for_ref(ref);
-
-            auto gpio = gpio_map.find(node->pin);
-
-            if (gpio == gpio_map.end()) {
-                continue;
-            }
-
-            out << "static const uint8_t SCHEMATIC_" << usage->name << " = " << gpio->second << ";" << endl;
-            out << endl;
-            out << "static inline" << endl;
-            out << "qm_rc_t schematic_PUSH_BUTTON_direction(enum schematic_direction dir) {" << endl;
-            out << "    qm_gpio_port_config_t cfg;" << endl;
-            out << "" << endl;
-            out << "    qm_gpio_get_config(QM_GPIO_0, &cfg);" << endl;
-            out << "" << endl;
-            out << "    if (dir == schematic_direction_out) {" << endl;
-            out << "        cfg.direction |= BIT(SCHEMATIC_PUSH_BUTTON);" << endl;
-            out << "    } else {" << endl;
-            out << "        cfg.direction &= ~BIT(SCHEMATIC_PUSH_BUTTON);" << endl;
-            out << "    }" << endl;
-            out << "" << endl;
-            out << "    return qm_gpio_set_config(QM_GPIO_0, &cfg);" << endl;
-            out << "}" << endl;
-            out << endl;
-        }
+    return opts;
+}
 
-        return true;
-    }
-};
+static
+opt<fs::path> find_py_template(const string &py_template, const vector<fs::path> &paths) {
 
-//class library {
-//public:
-//    library(const string &name) : name(name) {}
-//
-//    library(library &&l) : name(std::move(l.name)), parts(std::move(l.parts)) { }
-//
-//    virtual ~library() { }
-//
-//    const string name;
-//    vector<unique_ptr<part>> parts;
-//
-//    opt<part *> find_part(string name) const {
-//        for (auto &part: parts) {
-//            if (part->name == name) {
-//                return part.get();
-//            }
-//        }
-//
-//        return nullopt;
-//    }
-//};
-
-//class kicad_gen {
-//public:
-//    vector<library> libraries;
-//
-//    kicad_gen() {
-//        library kicad_utils("kicad_utils");
-//        kicad_utils.parts.push_back(make_unique<arduino_uno>());
-//        kicad_utils.parts.push_back(make_unique<intel_quark_d2000>());
-//
-//        libraries.push_back(std::move(kicad_utils));
-//    }
-//
-//    opt<library *> find_library(string name) {
-//        for (auto &l : libraries) {
-//            if (l.name == name) {
-//                return &l;
-//            }
-//        }
-//
-//        return nullopt;
-//    }
-//};
-
-opt<fs::path> find_template(const string &py_template, const vector<fs::path> &paths) {
-
-    fs::path p(py_template);
+    fs::path p(py_template + ".py");
 
     if (fs::exists(p)) {
         return p;
     }
 
     for (auto &&prefix : paths) {
-        p = prefix / py_template;
+        p = prefix / (py_template + ".py");
 
         if (fs::exists(p)) {
             return p;
@@ -262,67 +116,11 @@ opt<fs::path> find_template(const string &py_template, const vector<fs::path> &p
     return nullopt;
 }
 
-/*
-bool generate(const char *ref, nl *const netlist, stringstream &out) {
-    kicad_gen gen;
-    opt<const component *> componentO = netlist->find_component(ref);
-
-    if (!componentO) {
-        cerr << "Could not find component '" << ref << "'" << endl;
-        return false;
-    }
-
-    const component *c = *componentO;
-
-    cerr << "Generating connections for " << c->ref << " (" << c->value << ")" << endl;
-
-    auto libraryO = gen.find_library(c->_lib_source.lib);
-
-    if (!libraryO) {
-        cerr << "Unsupported library '" << c->_lib_source.lib << "'" << endl;
-        return false;
-    }
-
-    const library *library = *libraryO;
-
-    auto partName = c->_lib_source.part;
-
-    auto partO = library->find_part(partName);
-
-    if (!partO) {
-        cerr << "The library library " << library->name << " does not have a component named " << partName << endl;
-        return false;
-    }
-
-    part *part = *partO;
-
-    out << "#ifndef SCHEMATIC_H" << endl;
-    out << "#define SCHEMATIC_H" << endl;
-    out << endl;
-    out << "*/
-/*" << endl;
-    out << "THIS FILE IS GENERATED. DO NOT EDIT." << endl;
-    out << endl;
-    out << "Generated from schematic for reference " << ref << ", part " << partName << " in library " <<
-        library->name << "." << endl;
-    out << "*//*
-" << endl;
-    out << endl;
-
-    auto usages = netlist->find_usage_of(ref);
-
-    part->generate(out, ref, usages);
-
-    out << "#endif // SCHEMATIC_H" << endl;
-
-    return true;
-}
-*/
-
-bool generate_py(const char *ref, nl *const netlist, stringstream &out, const fs::path &py_template) {
+bool generate(const string &ref, nl *const netlist, stringstream &out, const fs::path &py_template) {
     py::dict vars;
     pybind11::module kicad_utils_py_module = py::module::import("kicad_utils_py");
-    vars = kicad_utils_py_module.attr("__dict__");
+    pybind11::module main_module = py::module::import("__main__");
+    vars = main_module.attr("__dict__");
 
     pybind11::object netlist_py = py::cast(netlist);
 
@@ -343,30 +141,8 @@ bool generate_py(const char *ref, nl *const netlist, stringstream &out, const fs
     return true;
 }
 
-int main(int argc, char **argv) {
-    bool debug;
-    char *net_filename;
-    char *ref;
-    char *py_template;
-    vector<fs::path> template_libs;
-    char *out_filename;
-
-    fs::path bin(argv[0]);
-    fs::path basedir = bin.parent_path().parent_path();
-
-    template_libs.push_back(fs::current_path());
-    template_libs.push_back(basedir / "share" / "kicad-utils" / "template");
-
-    parse_args(argc, argv, &debug, &net_filename, &ref, &py_template, template_libs, &out_filename);
-
-    kicad_net_loader loader;
-
-    /*
-    string python_version = Py_GetVersion();
-    cout << "Python version: " << python_version << endl;
-    */
-
-    /*
+__attribute__((unused)) static
+void show_env() {
     map<string, string> env;
     for (char **e = environ; *e != NULL; e++) {
         string s = *e;
@@ -377,86 +153,122 @@ int main(int argc, char **argv) {
     for (auto &&e: env) {
         cout << e.first << " = " << e.second << endl;
     }
-    */
+}
+
+__attribute__((unused)) static
+void show_py_info() {
+    cerr << "Compile-time Python version: " << PY_VERSION << endl;
+    cerr << "Current python version: " << Py_GetVersion() << endl;
+}
+
+class python_init {
+private:
+    wchar_t *program = nullptr;
+
+public:
+    class python_init_error : public std::runtime_error {
+    public:
+        python_init_error(const string &what) : runtime_error(what) {}
+    };
+
+    python_init(const char *argv0, const vector<fs::path> &python_paths) {
+        std::wstring_convert<codecvt_utf8<wchar_t>> converter;
+
+        wstring pythonpath(Py_GetPath());
+        for (auto &path : python_paths) {
+            if (!fs::exists(path)) {
+                continue;
+            }
+            pythonpath = converter.from_bytes(path.string() + PATH_SEPARATOR) + pythonpath;
+        }
+        wcerr << "PYTHONPATH: " << pythonpath << endl;
+        Py_SetPath(pythonpath.c_str());
+
+        program = Py_DecodeLocale(argv0, NULL);
+        if (program == NULL) {
+            throw python_init_error("Fatal error: cannot decode argv[0]\n");
+        }
+        Py_SetProgramName(program);
+
+        show_py_info();
+
+        Py_Initialize();
+    }
+
+    ~python_init() {
+        Py_Finalize();
+        PyMem_RawFree(program);
+    }
+};
+
+int main(int argc, char **argv) {
+    program = argv[0];
+
+    fs::path bin(argv[0]);
+    fs::path basedir = bin.parent_path().parent_path();
+
+    struct opts opts = parse_args(argc, argv);
+
+    opts.template_libs.push_back(fs::current_path());
+    opts.template_libs.push_back(basedir / "share" / "kicad-utils" / "template");
+
+    kicad_net_loader loader;
+
+    if (opts.debug) {
+        show_env();
+    }
 
     try {
-        nl netlist = loader.load(net_filename, cerr);
+        nl netlist = loader.load(opts.net_filename, cerr);
 
         stringstream out;
-        bool ok = false;
 
-        if (py_template) {
-            cerr << "Template path: " << endl;
-            for (auto &&p : template_libs) {
+        cerr << "Template search path: " << endl;
+        for (auto &&p : opts.template_libs) {
+            cerr << "  " << p.string() << endl;
+        }
+
+        opt<fs::path> py_template = find_py_template(opts.py_template, opts.template_libs);
+
+        if (!py_template) {
+            cerr << "No such file: " << opts.py_template << endl;
+            cerr << "Search path: " << endl;
+            for (auto &&p : opts.template_libs) {
                 cerr << "  " << p.string() << endl;
             }
+            cerr << "Current path is " << fs::current_path().string() << endl;
+            return EXIT_FAILURE;
+        }
 
-            opt<fs::path> tmpl = find_template(py_template, template_libs);
+        vector<fs::path> module_paths{
+                basedir / "python",
+                basedir / "lib",
+        };
 
-            if (!tmpl) {
-                cerr << "No such file: " << py_template << endl;
-                cerr << "Search path: " << endl;
-                for (auto &&p : template_libs) {
-                    cerr << "  " << p.string() << endl;
-                }
-                cerr << "Current path is " << fs::current_path().string() << endl;
-            } else {
-                wchar_t *program = Py_DecodeLocale(argv[0], NULL);
-                if (program == NULL) {
-                    fprintf(stderr, "Fatal error: cannot decode argv[0]\n");
-                    exit(1);
-                }
-                Py_SetProgramName(program);
-
-                vector<fs::path> module_paths{
-                    basedir / "python",
-                    basedir / "lib",
-                };
-
-                std::wstring_convert<codecvt_utf8<wchar_t> > converter;
-                converter.from_bytes(string("foo"));
-
-                wstring pythonpath(Py_GetPath());
-                for (auto &path : module_paths) {
-                    if (!fs::exists(path)) {
-                        continue;
-                    }
-//                    pythonpath += converter.from_bytes(PATH_SEPARATOR + path.string());
-                    pythonpath = converter.from_bytes(path.string() + PATH_SEPARATOR) + pythonpath;
+        python_init python(argv[0], module_paths);
+        try {
+            auto ok = generate(opts.ref, &netlist, out, py_template.value());
+
+            if (ok) {
+                auto contents = out.str();
+                if (opts.out_filename) {
+                    ofstream outstream(opts.out_filename.value());
+                    outstream << contents;
+                    outstream.close();
+                } else {
+                    cout << contents << flush;
                 }
-                wcerr << "pythonpath=" << pythonpath << endl;
-                Py_SetPath(pythonpath.c_str());
-
-                cerr << "Compile-time Python version: " << PY_VERSION << endl;
-                cerr << "Current python version: " << Py_GetVersion() << endl;
-
-                Py_Initialize();
-                try {
-                    ok = generate_py(ref, &netlist, out, tmpl.value());
-                } catch (py::error_already_set &e) {
-                    cerr << "Python failure:" << endl << e.what() << endl;
-                } catch (std::runtime_error &e) {
-                    cerr << "Generation failed: " << e.what() << endl;
-                }
-                Py_Finalize();
-                PyMem_RawFree(program);
+                return EXIT_SUCCESS;
             }
-//        } else {
-//            ok = generate(ref, &netlist, out);
+        } catch (py::error_already_set &e) {
+            cerr << "Python failure:" << endl << e.what() << endl;
+        } catch (std::runtime_error &e) {
+            cerr << "Generation failed: " << e.what() << endl;
         }
 
-        if (ok) {
-            auto contents = out.str();
-            if (out_filename != nullptr) {
-                ofstream outstream(out_filename);
-                outstream << contents;
-                outstream.close();
-            } else {
-                cout << contents << flush;
-            }
-            return EXIT_SUCCESS;
-        }
-        return EXIT_FAILURE;
+        return EXIT_SUCCESS;
+    } catch (python_init::python_init_error &e) {
+        errx(EX_IOERR, e.what());
     } catch (kicad_parse_exception &e) {
         for (auto &m: e.messages) {
             fprintf(stderr, "%s\n", m.c_str());
-- 
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