gptman: reorganize commands in a cmd module

1 files changed, 41 insertions, 0 deletions

diff --git a/cmd/create/create.ha b/cmd/create/create.ha
new file mode 100644
index 0000000..124d86e
--- /dev/null
+++ b/cmd/create/create.ha
@@ -0,0 +1,41 @@
+use fmt;
+use fs;
+use getopt;
+use io;
+use os;
+use strconv;
+
+use gpt;
+use cmd;
+
+export fn create(vol: str, args: []str) void = {
+	// XXX this is a stub
+
+	const c = getopt::parse(args,
+		"create a volume",
+		('f', "file", "specify another partition file to fit"),
+		('l', "length", "specify another length margin")
+	);
+	defer getopt::finish(&c);
+	
+	let length = 0z;
+
+	for (let i = 0z; i < len(c.opts); i += 1) {
+		const opt = c.opts[i];
+		switch (opt.0) {
+		case 'l' =>
+			length += (strconv::stoi(opt.1)! / 512 + 1): size;
+		case 'f' =>
+			const stat = os::stat(opt.1)!;
+			length += stat.sz / 512 + 1;
+		};
+	};
+
+	const vol = cmd::mkvol(vol);
+	const vol = gpt::create(vol, length);
+	defer {
+		gpt::chksums(vol);
+		gpt::commit(vol)!;
+		gpt::finish(vol);
+	};
+};