Table of Contents

Class AddRemoveFeedCommand

Namespace
ZeroInstall.Commands.Basic
Assembly
0install.dll

Common base class for AddFeed and RemoveFeed.

public abstract class AddRemoveFeedCommand : CliCommand
Inheritance
AddRemoveFeedCommand
Derived
Inherited Members

Constructors

AddRemoveFeedCommand(ICommandHandler)

Creates a new command.

protected AddRemoveFeedCommand(ICommandHandler handler)

Parameters

handler ICommandHandler

A callback object used when the the user needs to be asked questions or informed about download and IO tasks.

Properties

AdditionalArgsMax

The maximum number of AdditionalArgs allowed. Checked in Parse(IReadOnlyList<string>).

protected override int AdditionalArgsMax { get; }

Property Value

int

AdditionalArgsMin

The minimum number of AdditionalArgs allowed. Checked in Parse(IReadOnlyList<string>).

protected override int AdditionalArgsMin { get; }

Property Value

int

Usage

The additional arguments to be displayed after the command name in the help text.

public override string Usage { get; }

Property Value

string

Methods

Execute()

Executes the commands specified by the command-line arguments. Must call Parse(IReadOnlyList<string>) first!

public override ExitCode Execute()

Returns

ExitCode

The exit status code to end the process with.

Remarks

When inheriting this method is usually replaced.

Exceptions

OperationCanceledException

The user canceled the task.

OptionException

The number of arguments passed in on the command-line is incorrect.

WebException

A file could not be downloaded from the internet.

NotSupportedException

A file format, protocol, etc. is unknown or not supported.

IOException

A downloaded file could not be written to the disk or extracted or an external application or file required by the solver could not be accessed.

UnauthorizedAccessException

An operation failed due to insufficient rights.

InvalidDataException

A problem occurred while deserializing an XML file.

SignatureException

The signature data could not be handled for some reason.

FormatException

An URI, local path, version number, etc. is invalid.

DigestMismatchException

An Implementation's Archives don't match the associated ManifestDigest.

SolverException

The ISolver was unable to provide Selections that fulfill the Requirements.

ImplementationNotFoundException

One of the ImplementationBases is not cached yet.

ExecutorException

The IExecutor was unable to process the Selections.

ExecuteHelper(IEnumerable<FeedUri>, FeedReference, Stability)

Registers or unregisters an additional feed source for a set of interfaces.

protected abstract ExitCode ExecuteHelper(IEnumerable<FeedUri> interfaces, FeedReference source, Stability suggestedStabilityPolicy)

Parameters

interfaces IEnumerable<FeedUri>

The set of interface URIs to register the feed source for.

source FeedReference

The feed reference to register for the interfaces.

suggestedStabilityPolicy Stability

The suggested value for StabilityPolicy. Will be Unset unless there is exactly one Implementation in the Feed.

Returns

ExitCode