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What is the best way to get a specific version of CocoaPod at runtime?

I'm currently trying to create a way to register the current version of my Pod at runtime, there are several ways that come to mind, but I wanted to ask here to make sure that I don’t miss something obvious.

What i have done so far:

  • I found out that Cocoapods generates the header file myPod-umbrella.h , which exports the following:

     FOUNDATION_EXPORT double myPodVersionNumber; FOUNDATION_EXPORT const unsigned char myPodVersionString[];

    They only myPodVersionNumber seem to be available, and for some reason it always has 1.0, is there a way to make this work correctly, since I have a feeling that this is the right way, but I configured it incorrectly.

  • Try to get hold of Info.plist’s built-in infrastructure and read the version there, but it seems a little problematic, I can’t guarantee that the developer will eventually do the package and may end up with a different bundle location or even have it inaccessible to the project.

  • Create a hardcoded property with the version number, this obviously works, but it adds a lot of room for error and doesn't seem to be the correct way to implement it, but if there is no other way around the CocoaPods, I just have to do it.

  • You have a build step that will read PodSpec and create a simple class that contains metadata about Pod, a little better than the previous one, but still slightly overloads what I'm looking for.

Does anyone have a better idea or can point me in the right direction?

What I'm trying to achieve is to run something like this

print("Current version: \(myPod.version) ")

and run it correctly in the console

#Current version: 1.2.0

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1 answer

How about using URLForResource? Prints well at runtime with the print request you requested.

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This version displays the entire lock file on the console.

 override func viewDidLoad() { super.viewDidLoad() let url = NSBundle.mainBundle().URLForResource("/lockfilefolder/Podfile", withExtension: "lock")! let data = try! String(contentsOfURL: url, encoding: NSUTF8StringEncoding) print(data) } /* Prints */ // PODS: // - Firebase/Analytics (3.3.0): // - FirebaseAnalytics (= 3.2.1) // - Firebase/Auth (3.3.0): // - Firebase/Analytics (= 3.3.0) // - FirebaseAuth (= 3.0.3) // - Firebase/Core (3.3.0): // - Firebase/Analytics (= 3.3.0) // - Firebase/Database (3.3.0): // - Firebase/Analytics (= 3.3.0) // - FirebaseDatabase (= 3.0.2) // TL;DR

This next version prints specific line numbers. Using componentsSeparatedByString("-") , I can remove the character - before the pod name, so that it looks cleaner. This works because lock files use - for each line in the list of subcategory names. Note that we are using pathForResource not a URLForResource .

  do { if let path = NSBundle.mainBundle().pathForResource("/lockfilefolder/Podfile", ofType: "lock"){ let data = try String(contentsOfFile: path, encoding: NSUTF8StringEncoding) let lockFileData = data.componentsSeparatedByString("-") print("Current version: \(lockFileData[6])") } } catch let err as NSError { print(err) } /* Prints */ // Current version: - Firebase/Core (3.3.0):

In the next version, we will print two lines. We use the data.componentsSeparatedByCharactersInSet(NSCharacterSet.newlineCharacterSet()) method. In this case, it becomes difficult to remove - so it is not worth it.

 let url = NSBundle.mainBundle().URLForResource("/lockfilefolder/Podfile", withExtension: "lock")! let data = try! String(contentsOfURL: url, encoding: NSUTF8StringEncoding) let lockFileData = data.componentsSeparatedByCharactersInSet(NSCharacterSet.newlineCharacterSet()) print(lockFileData[72]) print(lockFileData[6]) /* Prints */ // COCOAPODS: 0.39.0 // - Firebase/Core (3.3.0):
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