+++ /dev/null
-<?php
-
-/*
- * This file is part of Psy Shell.
- *
- * (c) 2012-2017 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Psy\Command;
-
-use Psy\Input\FilterOptions;
-use Psy\Output\ShellOutput;
-use Psy\Readline\Readline;
-use Symfony\Component\Console\Formatter\OutputFormatter;
-use Symfony\Component\Console\Input\InputInterface;
-use Symfony\Component\Console\Input\InputOption;
-use Symfony\Component\Console\Output\OutputInterface;
-
-/**
- * Psy Shell history command.
- *
- * Shows, searches and replays readline history. Not too shabby.
- */
-class HistoryCommand extends Command
-{
- private $filter;
-
- /**
- * {@inheritdoc}
- */
- public function __construct($name = null)
- {
- $this->filter = new FilterOptions();
-
- parent::__construct($name);
- }
-
- /**
- * Set the Shell's Readline service.
- *
- * @param Readline $readline
- */
- public function setReadline(Readline $readline)
- {
- $this->readline = $readline;
- }
-
- /**
- * {@inheritdoc}
- */
- protected function configure()
- {
- list($grep, $insensitive, $invert) = FilterOptions::getOptions();
-
- $this
- ->setName('history')
- ->setAliases(array('hist'))
- ->setDefinition(array(
- new InputOption('show', 's', InputOption::VALUE_REQUIRED, 'Show the given range of lines'),
- new InputOption('head', 'H', InputOption::VALUE_REQUIRED, 'Display the first N items.'),
- new InputOption('tail', 'T', InputOption::VALUE_REQUIRED, 'Display the last N items.'),
-
- $grep,
- $insensitive,
- $invert,
-
- new InputOption('no-numbers', 'N', InputOption::VALUE_NONE, 'Omit line numbers.'),
-
- new InputOption('save', '', InputOption::VALUE_REQUIRED, 'Save history to a file.'),
- new InputOption('replay', '', InputOption::VALUE_NONE, 'Replay'),
- new InputOption('clear', '', InputOption::VALUE_NONE, 'Clear the history.'),
- ))
- ->setDescription('Show the Psy Shell history.')
- ->setHelp(
- <<<'HELP'
-Show, search, save or replay the Psy Shell history.
-
-e.g.
-<return>>>> history --grep /[bB]acon/</return>
-<return>>>> history --show 0..10 --replay</return>
-<return>>>> history --clear</return>
-<return>>>> history --tail 1000 --save somefile.txt</return>
-HELP
- );
- }
-
- /**
- * {@inheritdoc}
- */
- protected function execute(InputInterface $input, OutputInterface $output)
- {
- $this->validateOnlyOne($input, array('show', 'head', 'tail'));
- $this->validateOnlyOne($input, array('save', 'replay', 'clear'));
-
- $history = $this->getHistorySlice(
- $input->getOption('show'),
- $input->getOption('head'),
- $input->getOption('tail')
- );
- $highlighted = false;
-
- $this->filter->bind($input);
- if ($this->filter->hasFilter()) {
- $matches = array();
- $highlighted = array();
- foreach ($history as $i => $line) {
- if ($this->filter->match($line, $matches)) {
- if (isset($matches[0])) {
- $chunks = explode($matches[0], $history[$i]);
- $chunks = array_map(array(__CLASS__, 'escape'), $chunks);
- $glue = sprintf('<urgent>%s</urgent>', self::escape($matches[0]));
-
- $highlighted[$i] = implode($glue, $chunks);
- }
- } else {
- unset($history[$i]);
- }
- }
- }
-
- if ($save = $input->getOption('save')) {
- $output->writeln(sprintf('Saving history in %s...', $save));
- file_put_contents($save, implode(PHP_EOL, $history) . PHP_EOL);
- $output->writeln('<info>History saved.</info>');
- } elseif ($input->getOption('replay')) {
- if (!($input->getOption('show') || $input->getOption('head') || $input->getOption('tail'))) {
- throw new \InvalidArgumentException('You must limit history via --head, --tail or --show before replaying.');
- }
-
- $count = count($history);
- $output->writeln(sprintf('Replaying %d line%s of history', $count, ($count !== 1) ? 's' : ''));
- $this->getApplication()->addInput($history);
- } elseif ($input->getOption('clear')) {
- $this->clearHistory();
- $output->writeln('<info>History cleared.</info>');
- } else {
- $type = $input->getOption('no-numbers') ? 0 : ShellOutput::NUMBER_LINES;
- if (!$highlighted) {
- $type = $type | ShellOutput::OUTPUT_RAW;
- }
-
- $output->page($highlighted ?: $history, $type);
- }
- }
-
- /**
- * Extract a range from a string.
- *
- * @param string $range
- *
- * @return array [ start, end ]
- */
- private function extractRange($range)
- {
- if (preg_match('/^\d+$/', $range)) {
- return array($range, $range + 1);
- }
-
- $matches = array();
- if ($range !== '..' && preg_match('/^(\d*)\.\.(\d*)$/', $range, $matches)) {
- $start = $matches[1] ? intval($matches[1]) : 0;
- $end = $matches[2] ? intval($matches[2]) + 1 : PHP_INT_MAX;
-
- return array($start, $end);
- }
-
- throw new \InvalidArgumentException('Unexpected range: ' . $range);
- }
-
- /**
- * Retrieve a slice of the readline history.
- *
- * @param string $show
- * @param string $head
- * @param string $tail
- *
- * @return array A slilce of history
- */
- private function getHistorySlice($show, $head, $tail)
- {
- $history = $this->readline->listHistory();
-
- // don't show the current `history` invocation
- array_pop($history);
-
- if ($show) {
- list($start, $end) = $this->extractRange($show);
- $length = $end - $start;
- } elseif ($head) {
- if (!preg_match('/^\d+$/', $head)) {
- throw new \InvalidArgumentException('Please specify an integer argument for --head.');
- }
-
- $start = 0;
- $length = intval($head);
- } elseif ($tail) {
- if (!preg_match('/^\d+$/', $tail)) {
- throw new \InvalidArgumentException('Please specify an integer argument for --tail.');
- }
-
- $start = count($history) - $tail;
- $length = intval($tail) + 1;
- } else {
- return $history;
- }
-
- return array_slice($history, $start, $length, true);
- }
-
- /**
- * Validate that only one of the given $options is set.
- *
- * @param InputInterface $input
- * @param array $options
- */
- private function validateOnlyOne(InputInterface $input, array $options)
- {
- $count = 0;
- foreach ($options as $opt) {
- if ($input->getOption($opt)) {
- $count++;
- }
- }
-
- if ($count > 1) {
- throw new \InvalidArgumentException('Please specify only one of --' . implode(', --', $options));
- }
- }
-
- /**
- * Clear the readline history.
- */
- private function clearHistory()
- {
- $this->readline->clearHistory();
- }
-
- public static function escape($string)
- {
- return OutputFormatter::escape($string);
- }
-}
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