minicargo - Start on a low-featured clone of cargo for mrustc

1 files changed, 85 insertions, 0 deletions

diff --git a/tools/minicargo/main.cpp b/tools/minicargo/main.cpp
new file mode 100644
index 00000000..89097928
--- /dev/null
+++ b/tools/minicargo/main.cpp
@@ -0,0 +1,85 @@
+/*
+ * Mini version of cargo 
+ *
+ * main.cpp
+ * - Entrypoint
+ */
+
+struct ProgramOptions
+{
+    const char* directory = nullptr;
+    const char* outfile = nullptr;
+
+    // Directory containing build script outputs
+    const char* override_directory = nullptr;
+
+    const char* output_directory = nullptr;
+
+    int parse(int argc, const char* argv[]);
+};
+
+int main(int argc, const char* argv[])
+{
+    ProgramOptions  opts;
+    if( opts.parse(argc, argv) ) {
+        return 1;
+    }
+
+    // 1. Load the Cargo.toml file from the passed directory
+    // 2. Recursively load dependency manifests
+    // 3. Generate makefile for all dependencies
+
+    return 0;
+}
+
+int ProgramOptions::parse(int argc, const char* argv[])
+{
+    bool all_free = false;
+    for(int i = 1; i < argc; i++)
+    {
+        const char* arg = argv[i];
+        if( arg[0] != '-' || all_free )
+        {
+            // Free arguments
+            if( !this->directory ) {
+                this->directory = arg;
+            }
+            else if( !this->outfile ) {
+                this->outfile = arg;
+            }
+            else {
+            }
+        }
+        else if( argv[1] != '-' )
+        {
+            // Short arguments
+        }
+        else if( argv[1] == '\0' )
+        {
+            all_free = true;
+        }
+        else
+        {
+            // Long arguments
+            if( ::std::strcmp(arg, "--script-overrides") == 0 ) {
+                if(i+1 == argc) {
+                    ::std::cerr << "Flag " << arg << " takes an argument" << ::std::endl;
+                    return 1;
+                }
+                //this->build_script_override_dir = argv[++i];
+            }
+            else {
+                ::std::cerr << "Unknown flag " << arg << ::std::endl;
+            }
+        }
+    }
+
+    if( !this->directory || !this->outfile )
+    {
+        usage();
+        exit(1);
+    }
+
+    return 0;
+}
+