jgit/org.eclipse.jgit/src/org/eclipse/jgit/util/Paths.java

/*
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 * This program and the accompanying materials are made available
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package org.eclipse.jgit.util;

/**
 * Utility functions for paths inside of a Git repository.
 *
 * @since 4.2
 */
public class Paths {
	/**
	 * Remove trailing {@code '/'} if present.
	 *
	 * @param path
	 *            input path to potentially remove trailing {@code '/'} from.
	 * @return null if {@code path == null}; {@code path} after removing a
	 *         trailing {@code '/'}.
	 */
	public static String stripTrailingSeparator(String path) {
		if (path == null || path.isEmpty()) {
			return path;
		}

		int i = path.length();
		if (path.charAt(path.length() - 1) != '/') {
			return path;
		}
		do {
			i--;
		} while (path.charAt(i - 1) == '/');
		return path.substring(0, i);
	}

	private Paths() {
	}
}