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Validate available command schemas at the start of the application

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This commit is contained in:
Alexey Golub
2019-08-13 18:34:23 +03:00
parent dc067ba224
commit 86fdf72d9c
1 changed files with 67 additions and 4 deletions
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71
CliFx/CliApplication.cs
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@@ -4,6 +4,7 @@ using System.Linq;
using System.Threading.Tasks;
using CliFx.Attributes;
using CliFx.Exceptions;
using CliFx.Internal;
using CliFx.Models;
using CliFx.Services;
@@ -36,6 +37,67 @@ namespace CliFx
_commandHelpTextRenderer = commandHelpTextRenderer;
}
private IReadOnlyList<string> GetAvailableCommandSchemasValidationErrors(IReadOnlyList<CommandSchema> availableCommandSchemas)
{
var result = new List<string>();
// Fail if there are no commands defined
if (!availableCommandSchemas.Any())
{
result.Add("There are no commands defined in this application.");
}
// Fail if there are multiple commands with the same name
var nonUniqueCommandNames = availableCommandSchemas
.Select(c => c.Name?.Trim())
.GroupBy(i => i, StringComparer.OrdinalIgnoreCase)
.Where(g => g.Count() >= 2)
.SelectMany(g => g)
.Distinct()
.ToArray();
foreach (var commandName in nonUniqueCommandNames)
{
result.Add($"There are multiple commands defined with name [{commandName}].");
}
// Fail if there are multiple options with the same name inside the same command
foreach (var commandSchema in availableCommandSchemas)
{
var nonUniqueOptionNames = commandSchema.Options
.Where(o => !o.Name.IsNullOrWhiteSpace())
.Select(o => o.Name)
.GroupBy(i => i, StringComparer.OrdinalIgnoreCase)
.Where(g => g.Count() >= 2)
.SelectMany(g => g)
.Distinct()
.ToArray();
foreach (var optionName in nonUniqueOptionNames)
{
result.Add(
$"There are multiple options defined with name [{optionName}] for command [{commandSchema.Name}].");
}
var nonUniqueOptionShortNames = commandSchema.Options
.Where(o => o.ShortName != null)
.Select(o => o.ShortName.Value)
.GroupBy(i => i)
.Where(g => g.Count() >= 2)
.SelectMany(g => g)
.Distinct()
.ToArray();
foreach (var optionShortName in nonUniqueOptionShortNames)
{
result.Add(
$"There are multiple options defined with short name [{optionShortName}] for command [{commandSchema.Name}].");
}
}
return result;
}
public async Task<int> RunAsync(IReadOnlyList<string> commandLineArguments)
{
try
@@ -45,11 +107,12 @@ namespace CliFx
var availableCommandSchemas = _commandSchemaResolver.GetCommandSchemas(_commandTypes);
var matchingCommandSchema = availableCommandSchemas.FindByName(commandInput.CommandName);
// Fail if there are no commands defined
if (!availableCommandSchemas.Any())
// Validate available command schemas
var validationErrors = GetAvailableCommandSchemasValidationErrors(availableCommandSchemas);
if (validationErrors.Any())
{
_console.WithForegroundColor(ConsoleColor.Red,
() => _console.Error.WriteLine("There are no commands defined in this application."));
foreach (var error in validationErrors)
_console.WithForegroundColor(ConsoleColor.Red, () => _console.Output.WriteLine(error));
return -1;
}