fetch

• Usage: java gitlet.Main fetch [remote name] [remote branch name]
• Description: Brings down commits from the remote Gitlet repository into the local Gitlet repository. Basically, this copies all commits and blobs from the given branch in the remote repository (that are not already in the current repository) into a branch named [remote name]/[remote branch name] in the local .gitlet (just as in real Git), changing [remote name]/[remote branch name] to point to the head commit (thus copying the contents of the branch from the remote repository to the current one). This branch is created in the local repository if it did not previously exist.
• Failure cases: If the remote Gitlet repository does not have the given branch name, print the error message That remote does not have that branch. If the remote .gitlet directory does not exist, print Remote directory not found.
• Dangerous? No