add initial files

.gitignore

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+zig-cache/
+zig-out/
+build/
+build-*/
+docgen_tmp/
+.vscode/

build.zig

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+const std = @import("std");
+
+pub fn build(b: *std.build.Builder) void {
+    // Standard target options allows the person running `zig build` to choose
+    // what target to build for. Here we do not override the defaults, which
+    // means any target is allowed, and the default is native. Other options
+    // for restricting supported target set are available.
+    const target = b.standardTargetOptions(.{});
+
+    // Standard release options allow the person running `zig build` to select
+    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
+    const mode = b.standardReleaseOptions();
+
+    const exe = b.addExecutable("zig", "src/$.zig");
+    exe.setTarget(target);
+    exe.setBuildMode(mode);
+    exe.install();
+
+    const run_cmd = exe.run();
+    run_cmd.step.dependOn(b.getInstallStep());
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "Run the app");
+    run_step.dependOn(&run_cmd.step);
+
+    const exe_tests = b.addTest("src/$.zig");
+    exe_tests.setBuildMode(mode);
+
+    const test_step = b.step("test", "Run unit tests");
+    test_step.dependOn(&exe_tests.step);
+}

src/$.zig

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+const std = @import("std");
+const string = []const u8;
+
+const shell = "bash"; // zsh, fish, etc.
+
+pub fn main() !void {
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    defer _ = gpa.deinit();
+    var allocator = gpa.allocator();
+
+    var iterator = try std.process.argsWithAllocator(allocator);
+    defer iterator.deinit();
+
+    _ = iterator.skip(); // Skip the program name
+    var command: []const u8 = "";
+    var arena = std.heap.ArenaAllocator.init(allocator);
+    defer arena.deinit();
+    var loopAllocator = arena.allocator();
+    while (iterator.next()) |next| {
+        var t = std.mem.concat(loopAllocator, u8, &.{ command, " ", next }) catch {
+            std.log.err("Failed to allocate the string", .{});
+            return;
+        };
+        command = loopAllocator.dupe(u8, t) catch {
+            std.log.err("Failed to copy the string", .{});
+            return;
+        };
+    }
+    command = std.mem.concat(loopAllocator, u8, &.{ command }) catch {
+        std.log.err("Failed to allocate the string", .{});
+        return;
+    };
+    var process = std.ChildProcess.init(&.{ "wsl", "-e", shell, "-li", "-c", command }, allocator) catch {
+        std.log.err("Failed to start child process", .{});
+        return;
+    };
+    defer process.deinit();
+    _ = process.spawnAndWait() catch {
+        std.log.err("Failed to spawn the child process", .{});
+        return;
+    };
+}