1 files changed, 33 insertions, 2 deletions
diff --git a/src/main.rs b/src/main.rs
index 2316546..4048886 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,9 +1,40 @@
+use std::fs::metadata;
+use std::io::stdin;
+use std::path::PathBuf;
 
 mod args;
+mod makefile;
 
 use args::Args;
+use makefile::Makefile;
 
 fn main() {
-    let args = Args::from_env_and_args();
-    dbg!(args);
+    let mut args = Args::from_env_and_args();
+    // If no makefile is specified, try some options.
+    if args.makefile.is_empty() {
+        if metadata("./makefile").is_ok() {
+            args.makefile = vec!["./makefile".into()];
+        } else if metadata("./Makefile").is_ok() {
+            args.makefile = vec!["./Makefile".into()];
+        } else {
+            // TODO handle error gracefully
+            panic!("no makefile found");
+        }
+    }
+    // Read in the makefile(s) specified.
+    // TODO dump command-line args into MAKEFLAGS
+    // TODO dump command-line macros into environment
+    // TODO add SHELL macro
+    let mut makefile = Makefile::new(args.clone());
+    if !args.no_builtin_rules {
+        makefile.add_builtins();
+    }
+    makefile.add_env();
+    for filename in &args.makefile {
+        if filename == &PathBuf::from("-") {
+            makefile.and_read(stdin().lock());
+        } else {
+            makefile.and_read_file(filename);
+        };
+    }
 }