Build app version using the latest hg commit hash and datetime.

custom_ios_app_version.sh

# Custom iOS app version
# @usage
# 1. Select: your Target in Xcode
# 2. Select: Build Phases Tab
# 3. Select: Add Build Phase -> Add Run Script
# 4. Paste code below in to new "Run Script" section
# 5. Drag the "Run Script" below "Link Binaries With Libraries"
# 6. Insure that LastCommitHash and LastBuildDate are in your app plist file.
# 7. Somewhere in your obj-c code paste:
#   + (NSString *)appVersionCommitHash {
#     NSString *lastCommitHash = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"LastCommitHash"];
#     return lastCommitHash; }
#   + (NSString *)appVersionDate {
#     NSString *lastBuildDate = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"LastBuildDate"];
#     return lastBuildDate; }

# save the latest hg commit hash

# in case hg has alias in .bash_profile
if [ -f ~/.bash_profile ];
then
  source ~/.bash_profile
fi
LAST_COMMIT_HASH=$(hg id -i)
/usr/libexec/PlistBuddy -c "Set :LastCommitHash $LAST_COMMIT_HASH" "$INFOPLIST_FILE"

# save the latest build date
NOW=$(date +'%y%m%d.%H%M')
/usr/libexec/PlistBuddy -c "Set :LastBuildDate $NOW" "$INFOPLIST_FILE"