import os
import nimgit

if paramCount() == 0:
    echo "No git-repo given."
    quit(QuitFailure)

discard git_libgit2_init()

try:
    let gitRepository = openGitRepository(paramStr(1))
    let gitRefNames   = gitRepository.getGitReferenceNames()

    for gitRefName in gitRefNames:
        let gitReference = gitRepository.lookupGitReference(gitRefName)

        case gitReference.getType():
            of referenceDirect:
                echo gitRefName & ": " & $gitReference.getTarget()

            of referenceSymbolic:
                echo gitRefName & " => " & gitReference.getSymbolicTarget() & ": " & $gitReference.getTarget()

        free(gitReference)

    free(gitRepository)

except:
    echo "Error:\n", getCurrentExceptionMsg()