From f06ab846e3e297007afe65d9f815afff4638af0d Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Sat, 15 Oct 2022 12:23:23 -0700
Subject: Automatically discover programs and incorporate into the binary

---
 Makefile            | 10 +++++++++-
 main.cpp            | 10 +---------
 programs/programs.h |  7 +++++++
 scripts/mkprograms  | 39 +++++++++++++++++++++++++++++++++++++++
 4 files changed, 56 insertions(+), 10 deletions(-)
 create mode 100644 programs/programs.h
 create mode 100755 scripts/mkprograms

diff --git a/Makefile b/Makefile
index b6a5e0d..18d889f 100644
--- a/Makefile
+++ b/Makefile
@@ -33,7 +33,7 @@ clean:
 .SECONDARY:
 .SUFFIXES:
 
-override SOURCES := $(shell find -\( -name build -prune -\) -o -\( -\( -name \*.bin -o -name \*.cpp -o -name \*.pal -\) -print -\))
+override SOURCES := $(shell find -\( -name build -prune -\) -o -\( -\( -name \*.bin -o -name \*.cpp -o -name \*.pal -\) -print -\)) $(BUILD)/programs/programs.cpp
 
 override OBJECTS := $(addprefix $(BUILD)/, $(addsuffix .o, $(basename $(SOURCES))))
 override DEPENDS := $(addprefix $(BUILD)/, $(addsuffix .d, $(basename $(SOURCES))))
@@ -56,6 +56,14 @@ $(BUILD)/%.o: %.cpp
 	@mkdir -p $(dir $@)
 	$(CXX) $(CXXFLAGS) $(COMPILE_FLAGS) -c -o $@ $<
 
+$(BUILD)/%.o: $(BUILD)/%.cpp
+	$(CXX) $(CXXFLAGS) $(COMPILE_FLAGS) -c -o $@ $<
+
+$(BUILD)/programs/programs.cpp:
+	@mkdir -p $(dir $@)
+	scripts/mkprograms > $@
+.PHONY: $(BUILD)/programs/programs.cpp
+
 $(BUILD)/minigolf: $(OBJECTS)
 	@mkdir -p $(dir $@)
 	$(CXX) $(CXXFLAGS) -o $@ -Wl,--start-group $+ -Wl,--end-group $(LINK_FLAGS)
diff --git a/main.cpp b/main.cpp
index 63dcb50..28dcbf7 100644
--- a/main.cpp
+++ b/main.cpp
@@ -2,19 +2,11 @@
 #include <cstdint>
 #include <fmt/format.h>
 #include <iostream>
-#include <map>
 #include <optional>
 #include <utility>
 
 #include "isa/checker.h"
-
-extern std::uint8_t _binary_count_bin_start[];
-extern std::uint8_t _binary_fib_bin_start[];
-
-static const std::map<std::string, std::uint8_t *> programs = {
-    { "count", _binary_count_bin_start },
-    { "fib", _binary_fib_bin_start },
-};
+#include "programs/programs.h"
 
 int load_program(checker &checker, const std::uint8_t *program) {
     bool seen_non_leader = false;
diff --git a/programs/programs.h b/programs/programs.h
new file mode 100644
index 0000000..dbe14e2
--- /dev/null
+++ b/programs/programs.h
@@ -0,0 +1,7 @@
+#pragma once
+
+#include <cstdint>
+#include <map>
+#include <string>
+
+extern const std::map<std::string, std::uint8_t *> programs;
diff --git a/scripts/mkprograms b/scripts/mkprograms
new file mode 100755
index 0000000..0529e63
--- /dev/null
+++ b/scripts/mkprograms
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+cd programs
+
+cat <<END
+#include <cstdint>
+#include <map>
+#include <string>
+
+#include "programs/programs.h"
+
+extern "C" {
+END
+
+for f in *; do
+    if [[ "$f" == "programs.h" ]]; then
+        continue
+    fi
+    b="${f%.*}"
+    echo "    extern std::uint8_t _binary_${b}_bin_start[];"
+done
+
+cat <<END
+}
+
+const std::map<std::string, std::uint8_t *> programs = {
+END
+
+for f in *; do
+    if [[ "$f" == "programs.h" ]]; then
+        continue
+    fi
+    b="${f%.*}"
+    echo "    { \"$b\", _binary_${b}_bin_start },"
+done
+
+cat <<END
+};
+END
-- 
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