Julien Cayzac jcayzac

Software engineer & Physics nerd

jcayzac / git-clone-tags.sh

Last active August 29, 2015 14:17

git: import remote tags into a local bare repository

	#!/usr/bin/env bash
	set -e -u -o pipefail

	# Similar to git clone --shallow, except it creates a local shallow
	# tag for every remote tag and doesn't clone any branch
	#
	# @param $1 [Required] Git remote
	r="$1"
	p="${r##*/}"
	p="${p%.git*}.git"

jcayzac / encrypt.m

Created February 26, 2015 07:30

	NSData *msg = [@"This is a message" dataUsingEncoding:NSUTF8StringEncoding];
	NSData *key = [@"the password" dataUsingEncoding:NSUTF8StringEncoding];

	NSLog(@"Unencrypted message: [%@]", msg);


	uint8_t iv[kCCBlockSizeAES128];
	if (SecRandomCopyBytes(kSecRandomDefault, sizeof(iv), iv))
	{
	// ERROR

jcayzac / dependencies.m

Created February 18, 2015 00:45

Have a block operation depend on a network operation (AFNetworking)

	// The problem: AFNetworking calls the operation's completion block asynchronously, so it breaks `-[NSOperation addDependency:]` order as the dependent is started before the dependency's completion block.

	dispatch_semaphore_t sem = dispatch_semaphore_create(0);
	__block NSOperation* blockOperation = nil;
	void (^networkOperationHandler)(NSOperation , id) = ^(NSOperation operation, id __unused unused) {
	if (operation.cancelled)
	{
	NSLog(@"networkOperation: networkOperation cancelled!");
	[blockOperation cancel];
	}

jcayzac / isBeingDebugged.m

Last active August 29, 2015 14:11

Detect if iOS app is being debugged/instrumented

	// attempt 1
	static BOOL isBeingDebugged()
	{
	static BOOL cachedValue = NO;
	static dispatch_once_t onceToken;
	dispatch_once(&onceToken, ^{
	char buffer[2*MAXCOMLEN + 1];
	int len = proc_name(getppid(), buffer, 2*MAXCOMLEN);
	buffer[len] = 0;
	cachedValue = !strncmp(buffer, "debugserver", len);

jcayzac / cibuild.sh

Last active August 29, 2015 14:08

CI build script for Xcode6.1/iOS8

jcayzac / MakeIPA

Created October 23, 2014 04:29

PackageApplication for Xcode6+

	#!/usr/bin/env bash
	set -e -u -o pipefail
	export LANG="en_US.UTF-8"

	cat <<EOT
	Creating IPA with the following parameters:

	Application path: "${1:-}"
	Code signing identity: "${2:-}"
	Provisioning profile path: "${3:-}"

jcayzac / reset-sim.sh

Last active June 23, 2016 03:04

How to reset the iOS simulator properly

	# source this in your Bash scripts

	reset-sim() {
	printf 'Close the frontend app if needed…'
	killall iOS\ Simulator 2>&- && sleep 5 \|\| true
	printf ' Done.\n'

	declare SIM_OS SIM SIM_ID
	while read SIM
	do

jcayzac / Rotations.m

Created October 17, 2014 08:14

	// Only called on iOS<8
	- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation __unused)toInterfaceOrientation duration:(NSTimeInterval __unused)duration {
	[self _beforeOrientationChange];
	}

	- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation __unused)fromInterfaceOrientation {
	[self _afterOrientationChange];
	}

	// Only called on iOS>8

jcayzac / XXXLocation.m

Created October 16, 2014 05:41

iOS location updates listener example

	@import Foundation;
	@import CoreLocation;

	////////////////////////////////////////////////////////////////////////////
	@interface XXXLocation : NSObject<CLLocationManagerDelegate>
	@property (nonatomic) BOOL trackingEnabled;
	@property (nonatomic) BOOL updating;
	@property (nonatomic, strong) CLLocationManager *locationManager;
	@end

jcayzac / anamorphic dvd.sh

Last active August 29, 2015 14:01