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const std = @import("std");
const Allocator = std.mem.Allocator;
const paths = @import("../paths.zig");
const formatDosPath = paths.formatDosPath;
const types = @import("./lib/types.zig");
const CommandStatus = types.CommandStatus;
const CommandContext = types.CommandContext;
pub const Chdir = struct {
path: []const u8,
pub fn eval(chdir: Chdir, ctx: CommandContext) !CommandStatus {
if (chdir.path.len == 0) {
// No arguments - display current directory
const cwd = std.fs.cwd().realpathAlloc(ctx.allocator, ".") catch {
const error_msg = "Unable to determine current directory\n";
var writer = ctx.output_writer;
try writer.write(error_msg);
return CommandStatus{ .Code = 1 };
};
defer ctx.allocator.free(cwd);
const formatted_path = try formatDosPath(ctx.allocator, cwd);
defer ctx.allocator.free(formatted_path);
const output = try std.fmt.allocPrint(ctx.allocator, "{s}\n", .{formatted_path});
defer ctx.allocator.free(output);
var writer = ctx.output_writer;
try writer.write(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";
var writer = ctx.output_writer;
try writer.write(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";
var writer = ctx.output_writer;
try writer.write(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";
var writer = ctx.output_writer;
try writer.write(error_msg);
return CommandStatus{ .Code = 1 };
}
}
std.process.changeCurDir(target_path) catch {
const error_msg = "The system cannot find the path specified.\n";
var writer = ctx.output_writer;
try writer.write(error_msg);
return CommandStatus{ .Code = 1 };
};
}
return CommandStatus{ .Code = 0 };
}
}
};
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