view release on metacpan or  search on metacpan

README  view on Meta::CPAN

        upgrade     mkdir   empty_dir
        downgrade   rmdir   empty_dir
        VERSION 0.1.0
        # To upgrade from 0.1.0 to 0.2.0 we need to drop old database. This
        # change can't be undone, so only way to downgrade from 0.2.0 is to
        # restore 0.1.0 from backup.
        upgrade     rm      useless.db
        RESTORE
        VERSION 0.2.0
        # To upgrade from 0.2.0 to 1.0.0 we need to run several commands,
        # and after downgrading we need to kill some background service.
        before_upgrade
          patch    <0.2.0.patch >/dev/null
          chmod +x some_daemon
        downgrade
          patch -R <0.2.0.patch >/dev/null
        upgrade
          ./some_daemon &
        after_downgrade
          killall -9 some_daemon
        VERSION 1.0.0

lib/App/migrate.pm  view on Meta::CPAN

    upgrade     mkdir   empty_dir
    downgrade   rmdir   empty_dir
    VERSION 0.1.0
    # To upgrade from 0.1.0 to 0.2.0 we need to drop old database. This
    # change can't be undone, so only way to downgrade from 0.2.0 is to
    # restore 0.1.0 from backup.
    upgrade     rm      useless.db
    RESTORE
    VERSION 0.2.0
    # To upgrade from 0.2.0 to 1.0.0 we need to run several commands,
    # and after downgrading we need to kill some background service.
    before_upgrade
      patch    <0.2.0.patch >/dev/null
      chmod +x some_daemon
    downgrade
      patch -R <0.2.0.patch >/dev/null
    upgrade
      ./some_daemon &
    after_downgrade
      killall -9 some_daemon
    VERSION 1.0.0

t/example.t  view on Meta::CPAN

upgrade     mkdir   empty_dir
downgrade   rmdir   empty_dir
VERSION 0.1.0
# To upgrade from 0.1.0 to 0.2.0 we need to drop old database. This
# change can't be undone, so only way to downgrade from 0.2.0 is to
# restore 0.1.0 from backup.
upgrade     rm      useless.db
RESTORE
VERSION 0.2.0
# To upgrade from 0.2.0 to 1.0.0 we need to run several commands,
# and after downgrading we need to kill some background service.
before_upgrade
  patch -E   <0.2.0.patch >/dev/null
  rm -f *.orig
  chmod +x some_daemon
downgrade
  patch -E -R <0.2.0.patch >/dev/null
  rm -f *.orig
upgrade
  ./some_daemon &
after_downgrade