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const std = @import("std");
const Allocator = std.mem.Allocator;
const print = std.debug.print;
const types = @import("./lib/types.zig");
const CommandStatus = types.CommandStatus;
const OutputCapture = types.OutputCapture;
const InputSource = types.InputSource;
pub const PathGet = struct {
pub fn eval(path_get: PathGet, allocator: Allocator, output_capture: ?*OutputCapture, input_source: ?*InputSource) !CommandStatus {
_ = path_get;
_ = input_source;
const current_path = std.process.getEnvVarOwned(allocator, "PATH") catch |err| switch (err) {
error.EnvironmentVariableNotFound => {
// PATH not set, show empty
const output = "PATH=(not set)\n";
if (output_capture) |capture| {
try capture.write(output);
} else {
print("{s}", .{output});
}
return CommandStatus{ .Code = 0 };
},
else => {
const error_msg = "Cannot access PATH environment variable\n";
if (output_capture) |capture| {
try capture.write(error_msg);
} else {
print("{s}", .{error_msg});
}
return CommandStatus{ .Code = 1 };
},
};
defer allocator.free(current_path);
const output = try std.fmt.allocPrint(allocator, "PATH={s}\n", .{current_path});
defer allocator.free(output);
if (output_capture) |capture| {
try capture.write(output);
} else {
print("{s}", .{output});
}
return CommandStatus{ .Code = 0 };
}
};
pub const PathSet = struct {
value: []const u8,
pub fn eval(path_set: PathSet, allocator: Allocator, output_capture: ?*OutputCapture, input_source: ?*InputSource) !CommandStatus {
_ = input_source;
// Note: In a real DOS system, this would persist for the session
// Here we just show what would be set but don't actually set it
// since Zig's std.process doesn't provide a simple way to set env vars
const output = try std.fmt.allocPrint(allocator, "PATH would be set to: {s}\n(Note: Environment variable setting not implemented in this shell)\n", .{path_set.value});
defer allocator.free(output);
if (output_capture) |capture| {
try capture.write(output);
} else {
print("{s}", .{output});
}
return CommandStatus{ .Code = 0 };
}
};
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