init

demo/demo.zig

@@ -0,0 +1,105 @@
+const std = @import("std");
+const noclip = @import("noclip");
+
+const subData: noclip.CommandData = .{ .name = "subcommand", .help = "this a sub command\n" };
+
+const subFlag = noclip.StringOption{
+    .name = "meta",
+    .short = "-m",
+    .handler = noclip.passthrough,
+};
+const subArg = noclip.StringArg{
+    .name = "sub",
+    .handler = noclip.passthrough,
+};
+const subSpec = .{ subFlag, subArg };
+const subCommand = noclip.Command(subData, subSpec, void, subCallback);
+
+const cdata: noclip.CommandData = .{
+    .name = "main",
+    .help = "main CLI entry point\n",
+};
+const flagCheck = noclip.FlagOption{
+    .name = "flag",
+    .default = .{ .value = false },
+    .truthy = .{ .short = "-f", .long = "--flag" },
+    .falsy = .{ .long = "--no-flag" },
+};
+const inputOption = noclip.StringOption{
+    .name = "input",
+    .short = "-i",
+    .long = "--input",
+    .envVar = "OPTS_INPUT",
+    .handler = noclip.passthrough,
+};
+const outputOption = noclip.StringOption{
+    .name = "output",
+    .long = "--output",
+    .default = .{ .value = "waoh" },
+    .handler = noclip.passthrough,
+};
+const numberOption = noclip.ValuedOption(i32){
+    .name = "number",
+    .short = "-n",
+    .long = "--number",
+    .handler = noclip.intHandler(i32),
+};
+const argCheck = noclip.StringArg{
+    .name = "argument",
+    .handler = noclip.passthrough,
+};
+const argAgain = noclip.StringArg{
+    .name = "another",
+    .handler = noclip.passthrough,
+};
+
+const mainSpec = .{
+    noclip.defaultHelpFlag,
+    flagCheck,
+    inputOption,
+    outputOption,
+    numberOption,
+    argCheck,
+    argAgain,
+    subCommand,
+};
+
+pub fn subCallback(_: void, result: noclip.CommandResult(subSpec)) !void {
+    std.debug.print("subcommand {}!!!\n", .{result});
+}
+
+pub fn mainCommand(_: void, result: noclip.CommandResult(mainSpec)) !void {
+    std.debug.print(
+        \\arguments: {{
+        \\    .flag = {}
+        \\    .input = {s}
+        \\    .output = {s}
+        \\    .number = {d}
+        \\    .argument = {s}
+        \\    .another = {s}
+        \\}}
+        \\
+    ,
+        .{
+            result.flag,
+            result.input,
+            result.output,
+            result.number,
+            result.argument,
+            result.another,
+        },
+    );
+}
+
+pub fn main() !void {
+    const command = noclip.Command(cdata, mainSpec, void, mainCommand);
+
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
+    defer arena.deinit();
+
+    const allocator = arena.allocator();
+    var argit = try std.process.argsWithAllocator(allocator);
+    _ = argit.next();
+
+    try command.execute(allocator, std.process.ArgIterator, &argit, {});
+}