NAME

urpm::main_loop - The install/remove main loop for urpm based programs (urpmi, gurpmi, rpmdrake, drakx)

SYNOPSIS

DESCRIPTION

run($urpm, $state, $something_was_to_be_done, $ask_unselect, $callbacks)

Run the main urpm loop:

• mount removable media if needed

• split the work in smaller transactions

• for each transaction:

  • prepare the transaction

  • download packages needed for this small transaction

  • verify packages

  • split package that should be installed instead of upgraded,

  • install source package only (whatever the user is root or not, but use rpm for that)

  • install/remove other packages

• migrate the chrooted rpmdb if needed

• display the final success/error message(s)

Warning: locking is left to callers...

Parameters:

$urpm: the urpm object

$state: the state object (see URPM)

$something_was_to_be_done

$ask_unselect: an array ref of packages that could not be selected

$callbacks: a hash ref of callbacks :

packages download:

trans_log($mode, $file, $percent, $total, $eta, $speed): called for displaying download progress

post_download(): called after completing download of packages

interaction with user:

ask_yes_or_no($_title, $msg)

need_restart($need_restart_formatted) called when restarting urpmi is needed (priority upgrades)

message($_title, $msg): display a message (with a title for GUIes)

signature management:

pre_check_sig(): signature checking startup (for rpmdrake)

check_sig(): signature checking progress (for rpmdrake)

bad_signature($msg, $msg2): called when a package is not/badly signed

removable media management:

pre_removable(): called before handling removable media (for rpmdrake)

copy_removable($medium_name): called for asking inserting a CD/DVD

post_extract($set, $transaction_sources, $transaction_sources_install) called after handling removable media (for rpmdrake)

packages installation callbacks (passed to urpm::install::install(), see URPM for parameters)

open_helper(): called when opening a package, must return a fd

close_helper(): called when package is closed

inst() called for package opening/progress/end

trans() called for transaction opening/progress/end

uninst(): called for erasure progress

error() called for cpio, script or unpacking errors

finish callbacks (mainly GUI callbacks for rpmdrake/gurpmi/drakx)

completed(): called when everything is completed (for cleanups)

trans_error_summary($nok, $errors) called to warn than $nok transactions failed with $errors messages

success_summary() called on success

already_installed_or_not_installable($msg1, $msg2)

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