[Console] use ANSI escape sequences in ProgressBar overwrite method
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064aedf9e3
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@ -40,7 +40,6 @@ class ProgressBar
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private $startTime;
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private $stepWidth;
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private $percent = 0.0;
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private $lastMessagesLength = 0;
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private $formatLineCount;
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private $messages;
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private $overwrite = true;
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@ -472,7 +471,7 @@ class ProgressBar
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$this->setRealFormat($this->internalFormat ?: $this->determineBestFormat());
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}
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$this->overwrite(str_repeat("\n", $this->formatLineCount));
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$this->overwrite('');
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}
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/**
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@ -512,37 +511,22 @@ class ProgressBar
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*/
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private function overwrite($message)
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{
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$lines = explode("\n", $message);
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// append whitespace to match the line's length
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if (null !== $this->lastMessagesLength) {
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foreach ($lines as $i => $line) {
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if ($this->lastMessagesLength > Helper::strlenWithoutDecoration($this->output->getFormatter(), $line)) {
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$lines[$i] = str_pad($line, $this->lastMessagesLength, "\x20", STR_PAD_RIGHT);
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}
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}
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}
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if ($this->overwrite) {
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// move back to the beginning of the progress bar before redrawing it
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// Move the cursor to the beginning of the line
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$this->output->write("\x0D");
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// Erase the line
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$this->output->write("\x1B[2K");
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// Erase previous lines
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if ($this->formatLineCount > 0) {
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$this->output->write(str_repeat("\x1B[1A\x1B[2K", $this->formatLineCount));
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}
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} elseif ($this->step > 0) {
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// move to new line
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$this->output->writeln('');
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}
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if ($this->formatLineCount) {
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$this->output->write(sprintf("\033[%dA", $this->formatLineCount));
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}
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$this->output->write(implode("\n", $lines));
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$this->lastMessagesLength = 0;
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foreach ($lines as $line) {
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$len = Helper::strlenWithoutDecoration($this->output->getFormatter(), $line);
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if ($len > $this->lastMessagesLength) {
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$this->lastMessagesLength = $len;
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}
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}
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$this->output->write($message);
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}
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private function determineBestFormat()
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@ -233,7 +233,7 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
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$this->generateOutput(' 0/50 [>---------------------------] 0%').
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$this->generateOutput(' 0/50 [>---------------------------] 0%').
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$this->generateOutput(' 1/50 [>---------------------------] 2%').
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$this->generateOutput(' 2/50 [=>--------------------------] '),
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$this->generateOutput(' 2/50 [=>--------------------------]'),
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stream_get_contents($output->getStream())
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);
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}
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@ -356,7 +356,7 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
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$this->assertEquals(
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$this->generateOutput(' 0/50 [>---------------------------] 0%').
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$this->generateOutput(' 25/50 [==============>-------------] 50%').
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$this->generateOutput(' '),
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$this->generateOutput(''),
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stream_get_contents($output->getStream())
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);
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}
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@ -554,9 +554,9 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
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rewind($output->getStream());
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$this->assertEquals(
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$this->generateOutput(">---------------------------\nfoobar").
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$this->generateOutput("=========>------------------\nfoobar ").
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$this->generateOutput(" \n ").
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$this->generateOutput("============================\nfoobar "),
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$this->generateOutput("=========>------------------\nfoobar").
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"\x0D\x1B[2K\x1B[1A\x1B[2K".
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$this->generateOutput("============================\nfoobar"),
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stream_get_contents($output->getStream())
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);
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}
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@ -665,6 +665,6 @@ class ProgressBarTest extends \PHPUnit_Framework_TestCase
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{
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$count = substr_count($expected, "\n");
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return "\x0D".($count ? sprintf("\033[%dA", $count) : '').$expected;
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return "\x0D\x1B[2K".($count ? str_repeat("\x1B[1A\x1B[2K", $count) : '').$expected;
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}
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}
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