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<?php namespace Tarsana\Command\Commands; |
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use Tarsana\Command\SubCommand; |
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use Tarsana\Syntax\ArraySyntax; |
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use Tarsana\Syntax\ObjectSyntax; |
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use Tarsana\Syntax\OptionalSyntax; |
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use Tarsana\Syntax\Syntax; |
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class HelpCommand extends SubCommand { |
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protected function execute() |
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{ |
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$c = $this->console(); |
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$c->line("<info>{$this->parent()->name()}</info> version <info>{$this->parent()->version()}</info>"); |
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$c->line("<br>{$this->parent()->description()}<br>"); |
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$syntax = $this->parent()->syntax(); |
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if ($syntax) { |
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$c->line("Syntax: <success>[options] " . $this->formatSyntax($syntax) . "</success>"); |
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$c->line("Arguments:"); |
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foreach ($syntax->fields() as $name => $s) { |
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$this->printField($name, $s); |
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} |
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} |
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$options = array_keys($this->parent()->options()); |
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if (!empty($options)) { |
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$c->line("Options:"); |
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foreach ($options as $name) { |
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$description = $this->parent()->describe($name); |
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$c->line("<tab><warn>{$name}</warn> {$description}"); |
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} |
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} |
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} |
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protected function formatSyntax(Syntax $s) : string |
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{ |
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if ($s instanceof ObjectSyntax) |
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return implode($s->separator(), array_keys($s->fields())); |
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if ($s instanceof ArraySyntax) |
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return $this->formatSyntax($s->syntax()) . $s->separator() . '...'; |
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if ($s instanceof OptionalSyntax) |
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return $this->formatSyntax($s->syntax()); |
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return (string) $s; |
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} |
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protected function getFields(Syntax $s) : array |
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{ |
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if ($s instanceof ObjectSyntax) |
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return $s->fields(); |
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if ($s instanceof ArraySyntax || $s instanceof OptionalSyntax) |
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return $this->getFields($s->syntax()); |
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return []; |
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} |
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protected function printField(string $name, Syntax $s, string $prefix = '', int $level = 1) |
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{ |
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$tabs = str_repeat('<tab>', $level); |
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$optional = ($s instanceof OptionalSyntax); |
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if ($optional) |
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$default = 'default: ' . json_encode($s->getDefault()); |
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else |
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$default = 'required'; |
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$description = $this->parent()->describe($prefix.$name); |
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$syntax = $this->formatSyntax($s); |
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$this->console()->line("{$tabs}<warn>{$name}</warn> <success>{$syntax}</success> {$description} <info>({$default})</info>"); |
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$level ++; |
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$prefix .= $name . '.'; |
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foreach ($this->getFields($s) as $field => $syntax) { |
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$this->printField($field, $syntax, $prefix, $level); |
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} |
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} |
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} |
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tarsana /
command
