steipete

git=`sh /etc/profile; which git`
version=`$git describe --tags --always`
count=`$git rev-list --all |wc -l`
echo -e "#define GIT_VERSION $version\n#define GIT_COMMIT_COUNT $count" > InfoPlist.h

ljanzik

#import <UIKit/UIKit.h>

@interface MySegueWithCustomAnimation : UIStoryboardSegue

@end

rsobik

# Update the CFBundleVersion in the generated Info.plist using the count of all commits

# Use Xcode's copy of the Git binary
GIT=`xcrun -find git`

# Use the commit count as CFBundleVersion
GIT_COMMIT_COUNT=`${GIT} rev-list --all | wc -l | tr -d ' '`
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion ${GIT_COMMIT_COUNT}" "${BUILT_PRODUCTS_DIR}/${INFOPLIST_PATH}"

/usr/libexec/PlistBuddy -c "Set :CFBundleVersion ${GIT_COMMIT_COUNT}" "${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}/Contents/Info.plist"

rsobik

# Use Xcode's copy of the Git binary
GIT=`xcrun -find git`

## Use the last annotated tag as CFBundleShortVersionString
GIT_TAG=`${GIT} describe --tags`
/usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString ${GIT_TAG}" "${BUILT_PRODUCTS_DIR}/${INFOPLIST_PATH}"

drance

@implementation BHSCollectionViewFlowLayout

- (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect {
    NSArray *allAttrs = [super layoutAttributesForElementsInRect:rect];
    for (UICollectionViewLayoutAttributes *attributes in allAttrs) {
        attributes.frame = CGRectIntegral(attributes.frame);
    }
    return allAttrs;
}

iamleeg

@interface GLObject : NSObject
{
    int _a;
}

- (void)logA;

@end

struct GLObject_cpp {

jpinnix

Follow the instructions here: The Hitchhiker's Guide to Riding a 
Mountain Lion http://j.mp/Qm5UJD, including installing XQuartz.

After installing XQuartz set the correct path to the X11 library to 
install Ruby 1.8.7-p358 with rbenv:

  export CPPFLAGS=-I/opt/X11/include

then let the compiler know where gcc-4.2 is:

steipete

// Defines a yet undocumented method to add a warning if super isn't called.
#ifndef NS_REQUIRES_SUPER
#if __has_attribute(objc_requires_super)
#define NS_REQUIRES_SUPER __attribute((objc_requires_super))
#else
#define NS_REQUIRES_SUPER
#endif
#endif

@interface UIViewController (SubclassingWarnings)

jmtatsch

# NOTE: These instructions do not represent a robust, self-troubleshooting install; they
# are definitely not suitable for dumping to a giant script and running as one. If you 
# use them, they should be run one at a time, with an eye out for errors or problems
# along the way.
#
# The #1 issue you are likely to encounter is with Homebrew or Python packages whose
# binary components link against system Python. This will result in runtime segfaults,
# especially in rviz. If you suspect this is occurring, you can attempt to remove and
# reinstall the offending packages, or go for the nuclear option--- empty your Cellar
# and site-packages folders and start over with brewed python from the beginning.

bjhomer

Running echo "*.m diff=objc" >> .gitattributes in a git repo tells git to use the obj-c diff algorithm when running git diff. For the most part, this isn't much different from the standard diff algorithm. However, it adds one key benefit.

In a unified git diff, added lines are prefixed with a +, and removed lines are prefixed with a -. Unchanged lines are provided for context, and have no prefix. As added context, though, unified diffs have a @@-prefixed line at the beginning of each hunk. Minimally, the @@ lines specify which lines in the file are being changed. It can also contain a label, if git can determine an appropriate label for that section of code.

By default, the label on a hunk context line is the name of the enclosing C function. That works great for C-ish code, but completely misses Obj-C method signatures. As a result, when diffing Obj-C files, the context label is either empty, or falls back to the last C-ish declaration it could find. This is usually entirely useless.

Adding