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@ddunbar
ddunbar / xcbuild-debugging-tricks.md
Last active April 13, 2024 15:41
Xcode new build system debugging tricks

New Build System Tricks

Command Line

alias xcbuild=$(xcode-select -p)/../SharedFrameworks/XCBuild.framework/Versions/A/Support/xcbuild
# THIS DOESNT WORK YET: xcbuild openIDEConsole  # … then switch to Xcode ➡️
xcbuild showSpecs
xcbuild build <foo.pif> [—target <target>]
@NSExceptional
NSExceptional / XcodeBuildSettingsReference.md
Last active May 5, 2023 18:57
The Xcode Build Settings Reference in a searchable document, as of Xcode 8.3.2

Build settings reference

Active Build Action (ACTION)

A string identifying the build system action being performed.

Additional SDKs (ADDITIONAL_SDKS)

The locations of any sparse SDKs that should be layered on top of the one specified by Base SDK (SDKROOT). If more than one SDK is listed, the first one has highest precedence. Every SDK specified in this setting should be a "sparse" SDK, for example, not an SDK for an entire macOS release.

Alternate Install Group (ALTERNATE_GROUP)

@mattt
mattt / UIImageForSwatchOfColorWithSize.h
Created September 27, 2013 01:25
Create a UIImage swatch of a color with a specified size.
static UIImage * UIImageForSwatchOfColorWithSize(UIColor *color, CGSize size) {
UIImage *image = nil;
CGRect rect = CGRectMake(0.0f, 0.0f, size.width, size.height);
UIGraphicsBeginImageContext(rect.size);
{
CGContextRef c = UIGraphicsGetCurrentContext();
CGContextSetFillColorWithColor(c, [color CGColor]);
@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active March 10, 2024 19:23
This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.
// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.
#import <objc/runtime.h>
#import <objc/message.h>
@PaulSolt
PaulSolt / ImageHelper.h
Created December 13, 2010 15:54
A simple UIImage to RGBA8 conversion function
/*
* The MIT License
*
* Copyright (c) 2011 Paul Solt, PaulSolt@gmail.com
*
* https://github.com/PaulSolt/UIImage-Conversion/blob/master/MITLicense.txt
*
*/
#import <Foundation/Foundation.h>