brandonkelly/cherrypath.php

## cherrypath.php
#!/usr/bin/env php
<?php

// -----------------------------------------------------------------------------
// Usage: `cherrypath.php <upstream> <head> <path>`
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// Runs `git cherry -v <upstream> <head>` and filters the output
// to only include SHAs where <path> was modified.
// -----------------------------------------------------------------------------

if (!isset($argv[1], $argv[2], $argv[3]) || isset($argv[4])) {
	echo "Usage: cherrypath.php <upstream> <head> <path>\n";
	exit(1);
}

exec(sprintf('git cherry -v %s %s', $argv[1], $argv[2]), $cherryOutput, $cherryCode);
if ($cherryCode !== 0) {
	echo sprintf("git-cherry failed: %s\n", implode("\n", $cherryOutput));
	exit(1);
}

exec(sprintf('git log --format=oneline -- %s', $argv[3]), $logOutput, $logCode);
if ($logCode !== 0) {
	echo sprintf("git-log failed: %s\n", implode("\n", $logOutput));
	exit(1);
}

// index the shas that involved the <path>
$logShas = [];
foreach ($logOutput as $line) {
	$sha = substr($line, 0, 40);
	$logShas[$sha] = true;
}

// output the git-cherry lines for the filtered shas
foreach ($cherryOutput as $line) {
	$sha = substr($line, 2, 40);
	if (isset($logShas[$sha])) {
		echo "$line\n";
	}
}
	#!/usr/bin/env php
	<?php

	// -----------------------------------------------------------------------------
	// Usage: `cherrypath.php <upstream> <head> <path>`
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
	// Runs `git cherry -v <upstream> <head>` and filters the output
	// to only include SHAs where <path> was modified.
	// -----------------------------------------------------------------------------

	if (!isset($argv[1], $argv[2], $argv[3]) \|\| isset($argv[4])) {
	echo "Usage: cherrypath.php <upstream> <head> <path>\n";
	exit(1);
	}

	exec(sprintf('git cherry -v %s %s', $argv[1], $argv[2]), $cherryOutput, $cherryCode);
	if ($cherryCode !== 0) {
	echo sprintf("git-cherry failed: %s\n", implode("\n", $cherryOutput));
	exit(1);
	}

	exec(sprintf('git log --format=oneline -- %s', $argv[3]), $logOutput, $logCode);
	if ($logCode !== 0) {
	echo sprintf("git-log failed: %s\n", implode("\n", $logOutput));
	exit(1);
	}

	// index the shas that involved the <path>
	$logShas = [];
	foreach ($logOutput as $line) {
	$sha = substr($line, 0, 40);
	$logShas[$sha] = true;
	}

	// output the git-cherry lines for the filtered shas
	foreach ($cherryOutput as $line) {
	$sha = substr($line, 2, 40);
	if (isset($logShas[$sha])) {
	echo "$line\n";
	}
	}