use_commit_count_as_build_number.sh

#!/bin/sh
#
# Run this as an Xcode build phase in order to always set the build number
# of a freshly-built app equal to the number of commits in the master branch.
# This gives you an always-increasing build number, automatically.
#
# This sets the build number only in the build product, not in the source
# directory itself, so it doesn't dirty the repository. You can leave the
# build number in the Xcode project to "1" forever.

git=$(sh /etc/profile; which git)
echo "found git $git"

target_plist="$TARGET_BUILD_DIR/$INFOPLIST_PATH"
dsym_plist="$DWARF_DSYM_FOLDER_PATH/$DWARF_DSYM_FILE_NAME/Contents/Info.plist"

number_of_commits=$("$git" rev-list master | wc -l | tr -d ' ')
echo "set number_of_commits $number_of_commits"

#git_release_version=$("$git" describe --tags --always --abbrev=0)
#echo "set git_release_version $git_release_version"

for plist in "$target_plist" "$dsym_plist"; do
if [ -f "$plist" ]; then
/usr/libexec/PlistBuddy -c "Set :CFBundleVersion $number_of_commits" "$plist"
#/usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString ${git_release_version#*v}" "$plist"
fi
done