picoCLIExample.kt

@CommandLine.Command(description = ["Prepend branch's name with `z_archive_`, " +
            "push to remote and then delete it's local ref. Default: if no branch specified, " +
            "current branch is targeted"])
    fun archiveBranches(
            @CommandLine.Parameters(
                    description = ["branches to archive. Run `git branch -a` to list branches"],
                    index = "0..*"
            ) branchesToArchive: List<String>?,

            @CommandLine.Option(
                    names = ["-r", "--remote"],
                    description = ["URL or alias of a custom remote"],
                    defaultValue = "origin",
                    showDefaultValue = CommandLine.Help.Visibility.ALWAYS
            ) remote: String
    ) {
        val currentBranch = currentBranch()
        var branchesToArchive = branchesToArchive
        var isNeedReturnToMainBranch = false
        if (isEmpty(branchesToArchive)) {
            branchesToArchive = listOf(currentBranch)
            isNeedReturnToMainBranch = true
        }

        val mainBranch = mainBranch()

        branchesToArchive?.forEach { branchToArchive ->
            if (!isNeedReturnToMainBranch) {
                isNeedReturnToMainBranch = branchToArchive == currentBranch
            }
            printer.ln("Archiving $branchToArchive...")
            val archivedBranch = "z_archive_$branchToArchive"
            (
                // this step is needed in case if we don't have local ref to target branch yet
                "git checkout $branchToArchive && " +
                "git branch -m $branchToArchive $archivedBranch ; " +
                "git push $remote $archivedBranch ; " +
                "git push $remote :$branchToArchive ; " +
                "git checkout ${if (isNeedReturnToMainBranch) mainBranch else currentBranch} ; " +
                "git branch -D $archivedBranch"
                ).runAsShellCommand().ln(printer)
        }
    }