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<?php
/**
* VC_rcs implementation.
*
* Copyright 2004-2006 Jeff Schwentner <jeffrey.schwentner@lmco.com>
*
* $Horde: framework/VC/VC/rcs.php,v 1.3.8.5 2006/01/01 21:28:42 jan Exp $
*
* @author Jeff Schwentner <jeffrey.schwentner@lmco.com>
* @author Chuck Hagenbuch <chuck@horde.org>
* @package VC
*/
class VC_rcs extends VC {
/**
* Checks an RCS file in with a specified change log.
*
* @param string $filepath Location of file to check in.
* @param string $message Log of changes since last version.
* @param string $user The user name to use for the check in.
* @param boolean $newBinary Does the change involve binary data?
*
* @return string|object The new revision number on success, or a
* PEAR_Error object on failure.
*/
function ci($filepath, $message, $user = null, $newBinary = false)
{
if ($user) {
putenv('LOGNAME=' . $user);
} else {
putenv('LOGNAME=guest');
}
$Q = VC_WINDOWS ? '"' : "'" ;
$ci_cmd = $this->getPath('ci') . ' ' . $Q . $filepath . $Q.' 2>&1';
$rcs_cmd = $this->getPath('rcs') . ' -i -kb ' . $Q . $filepath . $Q.' 2>&1';
$output = '';
$message_lines = explode("\n", $message);
$pipe_def = array(0 => array("pipe", 'r'),
1 => array("pipe", 'w'));
if ($newBinary) {
$process = proc_open($rcs_cmd, $pipe_def, $pipes);
} else {
$process = proc_open($ci_cmd, $pipe_def, $pipes);
}
if (is_resource($process)) {
foreach ($message_lines as $line) {
if ($line == '.\n') {
$line = '. \n';
}
fwrite($pipes[0], $line);
}
fwrite($pipes[0], "\n.\n");
fclose($pipes[0]);
while (!feof($pipes[1])) {
$output .= fread($pipes[1], 8192);
}
fclose($pipes[1]);
proc_close($process);
} else {
return PEAR::raiseError('Failed to open pipe in ci()');
}
if ($newBinary) {
exec($ci_cmd . ' 2>&1', $return_array, $retval);
if ($retval) {
return PEAR::raiseError("Unable to spawn ci on $filepath from ci()");
} else {
foreach ($return_array as $line) {
$output .= $line;
}
}
}
$rev_start = strpos($output, 'new revision: ');
// If no new revision, see if this is an initial checkin.
if ($rev_start === false) {
$rev_start = strpos($output, 'initial revision: ');
$rev_end = strpos($output, ' ', $rev_start);
} else {
$rev_end = strpos($output, ';', $rev_start);
}
if ($rev_start !== false && $rev_end !== false) {
$rev_start += 14;
return substr($output, $rev_start, $rev_end - $rev_start);
} else {
unlock($filepath);
$temp_pos = strpos($output, 'file is unchanged');
if ($temp_pos !== false) {
return PEAR::raiseError('Check-in Failure: ' . basename($filepath) . ' has not been modified');
} else {
return PEAR::raiseError("Failed to checkin $filepath, $ci_cmd, $output");
}
}
}
/**
* Checks the locks on a CVS/RCS file.
*
* @param string $filepath Location of file.
* @param string &$locked_by Returns the username holding the lock.
*
* @return boolean|object True on success, or a PEAR_Error on failure.
*/
function isLocked($filepath, &$locked_by)
{
$rlog_cmd = $this->getPath('rlog');
$rlog_flag = ' -L ';
$Q = VC_WINDOWS ? '"' : "'";
$cmd = $rlog_cmd . $rlog_flag . $Q . $filepath . $Q;
exec($cmd.' 2>&1', $return_array, $retval);
if ($retval) {
return PEAR::raiseError("Unable to spawn rlog on $filepath from isLocked()");
} else {
$output = '';
foreach ($return_array as $line) {
$output .= $line;
}
$start_name = strpos($output, 'locked by: ');
$end_name = strpos($output, ';', $start_name);
if ($start_name !== false && $end_name !== false) {
$start_name += 11;
$locked_by = substr($output, $start_name, $end_name - $start_name);
return true;
} elseif (strlen($output) == 0) {
return false;
} else {
return PEAR::raiseError('Failure running rlog in isLocked()');
}
}
}
/**
* Locks a CVS/RCS file.
*
* @param string $filepath Location of file.
* @param string $user User name to lock the file with
*
* @return boolean|object True on success, or a PEAR_Error on failure.
*/
function lock($filepath, $user = null)
{
// Get username for RCS tag.
if ($user) {
putenv('LOGNAME=' . $user);
} else {
putenv('LOGNAME=guest');
}
$rcs_cmd = $this->getPath('rcs');
$rcs_flag = ' -l ';
$Q = VC_WINDOWS ? '"' : "'" ;
$cmd = $rcs_cmd . $rcs_flag . $Q . $filepath . $Q;
exec($cmd.' 2>&1', $return_array, $retval);
if ($retval) {
return PEAR::raiseError('Failed to spawn rcs ("' . $cmd . '") on "' . $filepath . '" (returned ' . $retval . ')');
} else {
$output = '';
foreach ($return_array as $line) {
$output .= $line;
}
$locked_pos = strpos($output, 'locked');
if ($locked_pos !== false) {
return true;
} else {
return PEAR::raiseError('Failed to lock "' . $filepath . '" (Ran "' . $cmd . '", got return code ' . $retval . ', output: ' . $output . ')');
}
}
}
/**
* Unlocks a CVS/RCS file.
*
* @param string $filepath Location of file.
* @param string $user User name to unlock the file with
*
* @return boolean|object True on success, or a PEAR_Error on failure.
*/
function unlock($filepath, $user = null)
{
// Get username for RCS tag.
if ($user) {
putenv('LOGNAME=' . $user);
} else {
putenv('LOGNAME=guest');
}
$rcs_cmd = $this->getPath('rcs');
$rcs_flag = ' -u ';
$Q = VC_WINDOWS ? '"' : "'" ;
$cmd = $rcs_cmd . $rcs_flag . $Q . $filepath . $Q;
exec($cmd . ' 2>&1', $return_array, $retval);
if ($retval) {
return PEAR::raiseError('Failed to spawn rcs ("' . $cmd . '") on "' . $filepath . '" (returned ' . $retval . ')');
} else {
$output = '';
foreach ($return_array as $line) {
$output .= $line;
}
$unlocked_pos = strpos($output, 'unlocked');
if ($unlocked_pos !== false) {
return true;
} else {
// Already unlocked.
return true;
}
}
}
}
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