include files recursively in Cocoapods podspec

CocoaPods source_files

[CocoaPods]

spec.source_files = 'Classes/**/*.{h,m,swift}', 'More_Classes/**/*.{h,m,swift}'

File patterns:

• * - Matches any file.
• ** - Matches directories recursively.
• ? - Matches any one character.
• [set] - Matches any one character in set.
• {p,q} - Matches either literal p or literal q.
• \ - Escapes the next meta-character.

The source_files attribute uses Ruby file glob syntax. The pattern must be relative to the root of your project (i.e., the podspec file), so this should work for you:

s.source_files = 'Library/src/**/*.{h,m}'

The source attribute is not for source code files, but rather for the remote repository from which the code should be retrieved (most commonly a Git repository URL and tag). See the CocoaPods specification docs for more info.