def _check_mode(self, package):
""" Check the package install mode is compatible with the system."""
if isinstance(package, localpackage.LocalPackage):
if package.get_install_mode() is not None and \
package.get_install_mode() != self._system.get_install_mode():
raise snoing_exceptions.PackageException(
("Package install mode is incompatible with the "
"system"), package.get_name())
def remove_package(self, package_name, force=False):
""" Remove a package, don't remove if force is False and packages depend on package_name."""
package = self._packages[package_name]
self._logger.set_state("Removing", package_name)
if force:
package.remove()
else:
if not self.check_installed(package_name):
raise snoing_exceptions.PackageException(
"Cannot remove, not installed.", package_name)
if not force:
for dependent_name in self._package_dependents(package_name):
if self.check_installed(dependent_name):
raise snoing_exceptions.PackageException("Cannot remove as %s depends on it." % \
dependent_name, package_name)
# If get here then package can be deleted
package.remove()
def update_package(self, package_name):
""" Update a package and all packages that depend on it."""
self._check_package(package_name)
package = self._packages[package_name]
self._check_mode(package)
if not isinstance(package, localpackage.LocalPackage):
raise snoing_exceptions.PackageException(
"Package cannot be updated by snoing. " +
package.get_help_text(), package_name)
if package.is_updated(): # Nothing todo if already updated
return
dependencies = self._install_dependencies(package)
package.set_dependency_paths(dependencies)
try:
self._logger.set_state("Updating", package_name)
package.update()
except snoing_exceptions.SystemException, e:
self._logger.error(e.args[0])
self._logger.detail(e.Details)
raise snoing_exceptions.PackageException("Installation fail",
package_name)
def install_package(self, package_name):
""" Install a package, installing all it's dependencies first."""
if self.check_installed(package_name):
return
package = self._packages[package_name]
self._check_mode(package)
if not isinstance(package, localpackage.LocalPackage):
raise snoing_exceptions.PackageException(
"Package cannot be installed by snoing. " +
package.get_help_text(), package_name)
dependencies = self._install_dependencies(package)
package.set_dependency_paths(dependencies)
try:
self._logger.set_state("Downloading", package_name)
package.download()
self._logger.package_downloaded(package_name)
self._logger.set_state("Installing", package_name)
package.install()
self._logger.package_installed(package_name)
except snoing_exceptions.SystemException, e:
self._logger.error(e.args[0])
self._logger.detail(e.Details)
raise snoing_exceptions.PackageException("Installation fail",
package_name)
def _check_package(self, package_name):
""" Check a package with package_name exists."""
if not package_name in self._packages.iterkeys():
raise snoing_exceptions.PackageException("Package doesn't exist.",
package_name)
self._packages[package_name].check_state()
