1 files changed, 14 insertions, 39 deletions

diff --git a/src/main.zig b/src/main.zig
index 1b8f702..c45cbed 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -1,43 +1,19 @@
 const std = @import("std");
+const dump = @import("dump.zig");
 const adler32 = std.hash.Adler32;
-const openFlags = std.fs.File.OpenFlags{
-    .read = true,
-    .write = false,
-    .lock = std.fs.File.Lock.None,
-};
-
-fn dump(args: [][]u8) u8 {
-    if (args.len < 3) {
-        std.debug.warn("Usage: {} [subcommand] [options]\n", .{args[0]});
-        return 255;
-    }
-
-    var file = std.fs.openFileAbsolute(args[2], openFlags) catch {
-        std.debug.warn("Cannot open file {}\n", .{args[2]});
-        return 255;
-    };
-    defer file.close();
-
-    var buffer: [16]u8 = undefined;
-    var r: u64 = undefined;
-    while (true) {
-        r = file.read(&buffer) catch {
-            break;
-        };
-        if (r <= 0)
-            break;
-
-        for (buffer[0..r]) |c| {
-            std.debug.warn("0x{x:2} ", .{c});
-        }
-        std.debug.warn(" -- {}\n", .{r});
-    }
-
-    return 0;
-}
 
 fn help(args: [][]u8) u8 {
-    std.debug.warn("Usage: {} [subcommand] [options]\n", .{args[0]});
+    std.debug.warn(
+        \\Usage: {} [subcommand] [options]
+        \\
+        \\Resource Compiler for C++
+        \\
+        \\Subcommands:
+        \\  dump [options] inputs   hexdump the input files
+        \\
+        \\For a full list of subcommand options, use [subcommand] --help
+        \\
+    , .{args[0]});
     return if (args.len < 2) 255 else 0;
 }
 
@@ -45,15 +21,14 @@ pub fn main() anyerror!u8 {
     var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
 
-    std.debug.warn("All your codebase are belong to us.\n\n", .{});
-
     const args = try std.process.argsAlloc(&arena.allocator);
     if (args.len < 2) {
         return help(args);
     }
 
     return switch (adler32.hash(args[1])) {
-        adler32.hash("dump") => dump(args),
+        adler32.hash("dump") => dump.cmd(args),
+        adler32.hash("-h"), adler32.hash("--help") => help(args),
         else => help(args),
     };
 }