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const std = @import("std");
const Allocator = std.mem.Allocator;
const print = std.debug.print;
const paths = @import("../paths.zig");
const formatDosPath = paths.formatDosPath;
const types = @import("./types.zig");
const CommandStatus = types.CommandStatus;
const OutputCapture = types.OutputCapture;
const InputSource = types.InputSource;
pub const Chdir = struct {
path: []const u8,
pub fn eval(chdir: Chdir, allocator: Allocator, output_capture: ?*OutputCapture, input_source: ?*InputSource) !CommandStatus {
_ = input_source;
if (chdir.path.len == 0) {
// No arguments - display current directory
const cwd = std.fs.cwd().realpathAlloc(allocator, ".") catch {
const error_msg = "Unable to determine current directory\n";
if (output_capture) |capture| {
try capture.write(error_msg);
} else {
print("{s}", .{error_msg});
}
return CommandStatus{ .Code = 1 };
};
defer allocator.free(cwd);
const formatted_path = try formatDosPath(allocator, cwd);
defer allocator.free(formatted_path);
const output = try std.fmt.allocPrint(allocator, "{s}\n", .{formatted_path});
defer allocator.free(output);
if (output_capture) |capture| {
try capture.write(output);
} else {
print("{s}", .{output});
}
return CommandStatus{ .Code = 0 };
} else {
// Change directory
const target_path = chdir.path;
// Handle special cases
if (std.mem.eql(u8, target_path, "..")) {
// Go to parent directory
std.process.changeCurDir("..") catch {
const error_msg = "The system cannot find the path specified.\n";
if (output_capture) |capture| {
try capture.write(error_msg);
} else {
print("{s}", .{error_msg});
}
return CommandStatus{ .Code = 1 };
};
} else if (std.mem.eql(u8, target_path, "\\") or std.mem.eql(u8, target_path, "/")) {
// Go to root directory - simplified to just go to "/"
std.process.changeCurDir("/") catch {
const error_msg = "The system cannot find the path specified.\n";
if (output_capture) |capture| {
try capture.write(error_msg);
} else {
print("{s}", .{error_msg});
}
return CommandStatus{ .Code = 1 };
};
} else {
// Regular directory change
// Make sure the path doesn't contain null bytes
for (target_path) |ch| {
if (ch == 0) {
const error_msg = "Invalid path: contains null character\n";
if (output_capture) |capture| {
try capture.write(error_msg);
} else {
print("{s}", .{error_msg});
}
return CommandStatus{ .Code = 1 };
}
}
std.process.changeCurDir(target_path) catch {
const error_msg = "The system cannot find the path specified.\n";
if (output_capture) |capture| {
try capture.write(error_msg);
} else {
print("{s}", .{error_msg});
}
return CommandStatus{ .Code = 1 };
};
}
return CommandStatus{ .Code = 0 };
}
}
};
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