How to automatically set the version and build num

Question

The version and build number (or version and short version) of a Watchkit app and extension have to be set to the same value as the containing app.

I use environment variables to set the apps version in the Info.plist dynamically at build time. That also works fine for the Watchkit extension, but not for the Watchkit app.

The environment variables I use have to be provided in the plist for the main app and extension without ${} (for variable ${VERSION} I set VERSION).
if I do the same for the Watchkit app, it is taking the string itself, not the value. If I provide it with dollar & brackets there is no data in the variable.

Any idea how to set the variables for the Watchkit app?

Answer 1

Well, if it doesn´t work like this, do it with a Run Script Build Phase. Do something like this:

#!/bin/sh
INFOPLIST="${TARGET_BUILD_DIR}/${INFOPLIST_PATH}"
echo "writing to $INFOPLIST"
PLISTCMD="Set :CFBundleVersion $(git rev-list --all|wc -l)"
echo -n "$INFOPLIST" | xargs -0 /usr/libexec/PlistBuddy -c "$PLISTCMD"

I don´t have the right paths for your WatchKit App, so you will have to change that yourself.

Answer 2

You can update the build version of all your targets without a build script. (You can also use this to update the marketing / short build version; in this case ignore changes to CFBundleVersion).

Open your project settings and set CURRENT_PROJECT_VERSION (Current Project Version) to the desired version number. In all targets make sur CURRENT_PROJECT_VERSION is empty (so that its value is inherited from the project). Then in all Info.plist files set CFBundleShortVersionString (Bundle versions string, short) and CFBundleVersion (Bundle version / build version) to $(CURRENT_PROJECT_VERSION).

If you want to increment your CFBundleVersion on each build (or to have it reflect your git SHA). Use agvtool as described by dogsgod or see https://developer.apple.com/library/ios/qa/qa1827/_index.html.