Snipplr

(Objective C) Quickest Way to Shell - Use system() instead of NSTask - zingo

Sat, 09 Jul 2011 04:53:37 UTC

Cocoa provides NSTask to run subprocesses. It can be used to run shell scripts, but all this manual pipe and file handling is a bit cumbersome. Fortunately, for a simple script, we can use the trusty old system and redirect its result to a file.

(Objective C) Checking If You App Has Been Run Before - zingo

Thu, 26 May 2011 14:19:04 UTC

Do you need you app to do something when it is first run on a certain computer? Do you need to know if it has been run before? Enter the following code into your Application Delegate. This code creates a BOOL that is created when the app is run. The if-else statement reads the value of the BOOL -- Yes or No. NOTE: You'll notice that if you run the app from xcode with the run button it says "Not run before". When you run it again it still says that. In order to truly test locate you apps Debug .app application then run that. Xcode clears out the data when you run it again. IT DOES WORK though, so don't worry if running you app in Xcode still gives you the Not Run Before result.

(Bash) Get a list of unique dtrace providers - zingo

Wed, 20 Apr 2011 01:07:45 UTC

Get a list of providers for DTrace that OSX supports. (DTrace is a probe/profiling tool created by Sun that came with Mac OS X starting with Leopard.)

(Objective C) Drawing Scaled Rectangles with NSDrawNinePartImage - zingo

Fri, 20 Aug 2010 08:22:46 UTC

Drawing scaled rectangles of arbitrary width and height that keeps the corner and sides properly scaled while growing the center.

(Other) List of Breakpoints for gdb - zingo

Sun, 01 Aug 2010 06:01:57 UTC

List of breakpoints for debuging with gdb. Add them to your ~/.gdbinit.

(Bash) Searching through Subversion history - zingo

Sun, 11 Apr 2010 19:53:03 UTC

grep through all history from within a Subversion working directory, like: $ svngrep SecItemCopyMatching *

(Objective C) Sending emails from Cocoa - zingo

Sat, 23 Jan 2010 22:02:38 UTC

With 10.5 Apple deprecated the use of NSMailDelivery â€“ without a replacement. So the questions comes up regulary â€“ how does one send emails from Cocoa? Turns out there are couple of frameworks available that can also be used to do the job. * Pantomime (LGPL license) - http://www.collaboration-world.com/pantomime/ * MailCore (New BSD license) - http://www.mronge.com/m/MailCore/ * EDMessage (BSD syle license) - http://www.mulle-kybernetik.com/software/EDFrameworks/download.html#EDMessage EDMessage has been around for ages. Checkout the example on how to use the API. MailCore is also really easy to use. But both lack support for asynchronous mail delivery. With MailCore I couldnâ€™t even work out how to send attachments. Also no idea if itâ€™s getting developed anymore. So if you are OK to use a LGPL library Pantomime seemed like a good choice. Sending simple emails is quite straight forward.

(SQL) Calculating distance in Kilometres and Miles from Latitude and Longitude - zingo

Tue, 01 Dec 2009 20:22:06 UTC

Using SQL you can have your database return the distance between 2 sets of Lat and Long points, and using some math functions also take into account the curvature of the earth.

(Objective C) Detailed NSLog() via a Preprocessor Macro - zingo

Tue, 20 Oct 2009 22:51:49 UTC

Ever needed to see more context surrounding your NSLog statement to help you debug in the console?

(Bash) Git and SVN Status in the Bash Prompt - zingo

Tue, 22 Sep 2009 00:01:21 UTC

Put this into your ~/.bashrc script and you should see the Git/SVN status in your prompt if your working directory is a sandbox.

(MySQL) MySQL table size, number of rows, and size of indexes - zingo

Wed, 04 Mar 2009 22:15:38 UTC

Show table size, number of rows, and size of indexes in MySQL.

(Objective C) Parse Header File for Outlets and makes sure that they are set at Runtime - zingo

Fri, 26 Sep 2008 20:33:33 UTC

(SVN) Template for DocBlock and svn:keywords - zingo

Thu, 24 Jul 2008 17:04:02 UTC

Substitute and update keywords like $HeadURL$, $Revision$, etc. in a file on every commit to subversion repos. 1. Set svn:keywords on repos: $ svn propset --recursive svn:keywords 'HeadURL Revision LastChangedBy Date' /path/to/repo 2. Use this source in your file.

(Objective C) Removing preferences belonging to your app - zingo

Tue, 22 Jul 2008 23:40:51 UTC

Remove all the keys of the applicationâ€™s preferences file from ~/Library/Preferences with Cocoaâ€™s NSUserDefaults class.

(Bash) Quick new tab from iTerm - zingo

Tue, 22 Jul 2008 21:46:31 UTC

Place this in your ~/.bash_profile then type tab in your terminal window to see some magic happen.

(Bash) Sort Directories by Size - zingo

Tue, 22 Jul 2008 21:19:52 UTC

(Objective C) Kill App after Expire Date (Suicidal Code Redux) - zingo

Wed, 09 Jul 2008 22:39:05 UTC

Using a gcc predefined macro, __DATE__, the code can know for itself when it was compiled, and build in an expiration date based on that value. The former code (http://snipplr.com/view/3448/kill-app-after-expire-date/) was not internationalised and might cause an issue when run outside of English speaking countries. This code resolves the locale issue.

(Bash) Words with many doubled letters - zingo

Tue, 01 Jul 2008 19:28:07 UTC

(PHP) Using the svn revision number in cakePHP application - zingo

Tue, 24 Jun 2008 19:44:33 UTC

(Bash) SVN rename all your CakePHP views from thtml to ctp - zingo

Wed, 28 May 2008 16:34:24 UTC

Recursively SVN rename (move) all thtml-files to ctp-files . Fires this up in CakePHPs /views path.

(Objective C) Filesystem - Testing FS Type - zingo

Mon, 12 May 2008 21:54:23 UTC

This can be used to test FS type.

(SQL) Storing an IP address in a database table - zingo

Wed, 09 Apr 2008 20:31:52 UTC

You can store an IP address in an INT UNSIGNED (4 bytes) which is of course much more efficient and faster than a CHAR(15). MySQL has two built-in functions: INET_ATON() and INET_NTOA(). These two functions are used allover the place in any TCP/IP stack implementation or even application. The INET_ATON() function converts Internet addresses from the numbers-and-dots notation into a 32-bit unsigned integer, and INET_NTOA() does the opposite.

(CSS) 8 Premium One Line Css Tips - zingo

Wed, 09 Apr 2008 19:56:26 UTC

(Bash) Emulating a Slow Internet Link for HTTP - zingo

Mon, 24 Mar 2008 22:51:35 UTC

recover to normal speed with /sbin/ipfw delete 100 /sbin/ipfw delete 200 ... or reboot

(Other) Get Infos on a DVD from Amazon-Webservices by UPC - zingo

Thu, 06 Mar 2008 18:12:45 UTC

[AmazonID] = your Amazon Webservice Access Id [UPC] = the DVDs Universal Product Code

(Objective C) Testing Regular Expressions for NSString - zingo

Sat, 23 Feb 2008 22:16:42 UTC

(Objective C) Saving Data to File - zingo

Thu, 21 Feb 2008 01:50:59 UTC

(Bash) Get Infos on WLAN on OSX - zingo

Wed, 13 Feb 2008 18:14:57 UTC

(Bash) Get Infos on Battery on OSX - zingo

Wed, 13 Feb 2008 18:11:53 UTC

(AppleScript) Get the Count of unread Messages in Vienna (RSS-Reader) - zingo

Mon, 11 Feb 2008 14:35:45 UTC

(Bash) Get Temperature on OSX - zingo

Sat, 09 Feb 2008 13:31:27 UTC

(SQL) Differences between two Tables - zingo

Fri, 01 Feb 2008 04:26:53 UTC

(Objective C) Macro for ASL Log like NSLog - zingo

Sun, 20 Jan 2008 20:19:32 UTC

Macro to give an asl_log-like NSLog.

(Bash) Determine the change in file size in lines between Subversion revisions - zingo

Fri, 04 Jan 2008 20:55:20 UTC

(Bash) Find possible plist-Files for an given Application - zingo

Sun, 16 Dec 2007 02:30:43 UTC

(Other) ItemAttributes for SearchIndex "DVD" in Amazon Web Services - zingo

Thu, 13 Dec 2007 22:54:22 UTC

(Objective C) Macro for VERBOSE_DEBUG_OUTPUT - zingo

Sat, 01 Dec 2007 19:28:07 UTC

(SQL) Generate Simple Bar Charts From a MySQL Prompt - zingo

Fri, 19 Oct 2007 00:40:13 UTC

You can generate a simple bar chart of the values by executing this command...

(Objective C) Importing data with coredata - zingo

Thu, 11 Oct 2007 21:57:17 UTC

A database table is basically an array of dictionary objects. As long as all the fields are valid property list types, you can loop through the array creating a managed object for each dictionary and setting the values. If you have an array controller in your nib and it's configured for your managed object, you can use this (where plist is expected to be an NSArray* - not sure why I made it an id).

(Bash) Enable Objective-C Messages Tracing - zingo

Sun, 07 Oct 2007 17:58:05 UTC

If you set the NSObjCMessageLoggingEnabled environment variable to "YES", the Objective-C runtime will log all dispatched Objective-C messages to a file named /tmp/msgSends-.

(Objective C) NSLog with NSError and NSArray with managedObjectContext - zingo

Thu, 09 Aug 2007 19:28:39 UTC

Prints content from an NSError or NSArray content from a managedObjectContext.

(Bash) List all application versions - zingo

Sun, 05 Aug 2007 20:14:51 UTC

List the current version and installation date of every application on a OS X system, using of Spotlight.

(CSS) Notebox for sourcecode on blog page - zingo

Sun, 05 Aug 2007 18:18:09 UTC

displays sourcecode in a nice notebox on blog pages. uses with a class.

(Objective C) kill app after expire date - zingo

Fri, 03 Aug 2007 22:48:27 UTC

Using a gcc predefined macro, __DATE__, the code can know for itself when it was compiled, and build in an expiration date based on that value. For a internationalised version see: http://snipplr.com/view/7196/kill-app-after-expire-date-suicidal-code-redux/

(Bash) The Top Ten Unix Shell Commands You Use - zingo

Sun, 08 Jul 2007 19:24:31 UTC

(Bash) cd's to a directory and lists the contents - zingo

Sun, 17 Jun 2007 17:11:58 UTC

for .bashrc, a function that cd's to a directory and lists the contents it takes ls arguments and a directory. for example, cl goes to home dir and lists contents. cl -l goes to ~/ and long lists contents. and cl -lrt public_html shows the contents of public_html in long list reverse time order.

(Bash) Display svn changelog on "svn up" - zingo

Sun, 17 Jun 2007 16:43:03 UTC

updates (svn up) a working copy and displays the changes