/**
* This source code is distributed under the terms as layed out in the
* GNU General Public License.
*
* Purpose: To provide File Diff Page.
*
* Based on phpcvsview
* @author Brian A Cheeseman <*****@*****.**>
* @copyright 2003-2005 Brian A Cheeseman
*
* Ported to bitweaver framework by Lester Caine 2006-12-29
* @version $Id$
**/
function DisplayFileDiff($Rev1, $Rev2)
{
global $env;
// Create our CVS connection object and set the required properties.
$CVSServer = new CVS_PServer($env['CVSSettings']['cvsroot'], $env['CVSSettings']['server'], $env['CVSSettings']['username'], $env['CVSSettings']['passwd']);
// Connect to the CVS server.
if ($CVSServer->Connect() === true) {
// Authenticate against the server.
$Response = $CVSServer->Authenticate();
if ($Response !== true) {
return;
}
echo '<hr />' . "\n";
echo '<div id="filediff">' . "\n";
// Get the DIFF from the server.
$DiffLines = explode("\n", $CVSServer->getFileDiff($env['mod_path'], $Rev1, $Rev2));
// echo "<pre>".implode("\n", $DiffLines)."</pre>";
// Get a RLOG of the module path specified in $env['mod_path'].
$CVSServer->RLog($env['mod_path']);
$DateOfFile = 0;
foreach ($CVSServer->FILES[0]["Revisions"] as $Revision) {
if ($Revision["Revision"] == $Rev1) {
$DateOfFile = strtotime($Revision["date"]);
}
}
$CVSServer->Disconnect();
$CVSServer = new CVS_PServer($env['CVSSettings']['cvsroot'], $env['CVSSettings']['server'], $env['CVSSettings']['username'], $env['CVSSettings']['passwd']);
$CVSServer->Connect();
$CVSServer->Authenticate();
if ($CVSServer->ExportFile($env['mod_path'], $DateOfFile) !== true) {
return;
}
$FilePatching = array();
$FileContents = $CVSServer->FILECONTENTS;
if ($FileContents === false) {
echo '<h3>ERROR: Getting Revision for file:</h3>' . '<h3>' . $Rev1 . '</h3>';
}
$Lines = explode("\n", $FileContents);
foreach ($Lines as $Line) {
$FilePatching[] = array('mode' => "o", 'text' => $Line);
}
$linenumber = 0;
while (strpos($DiffLines[$linenumber], "diff") === false) {
$linenumber++;
}
// while
$linenumber++;
// We now have the line which starts the diff output.
$LineOffset = 0;
while ($linenumber < count($DiffLines)) {
if (strpos($DiffLines[$linenumber], "a") !== false) {
// We have added a line or lines.
$Parts = explode("a", $DiffLines[$linenumber]);
$InsertLocation = explode(",", $Parts[0]);
$NewLineLocation = explode(",", $Parts[1]);
$InsertLength = count($NewLineLocation) == 2 ? $NewLineLocation[1] - $NewLineLocation[0] + 1 : 1;
for ($LineCounter = 0; $LineCounter < $InsertLength; $LineCounter++) {
$TempLine = array('mode' => "+", 'text' => substr($DiffLines[++$linenumber], 2));
$FilePatching = InsertIntoArray($FilePatching, $TempLine, $InsertLocation[0] + $LineCounter + 1);
$LineOffset++;
}
} else {
if (strpos($DiffLines[$linenumber], "c") !== false) {
// We have changed a line or lines.
$Parts = explode("c", $DiffLines[$linenumber]);
$InsertLocation = explode(",", $Parts[0]);
$InsertLength = count($InsertLocation) == 2 ? $InsertLocation[1] - $InsertLocation[0] + 1 : 1;
$linenumber += $InsertLength + 1;
$NewFileLocation = explode(",", $Parts[1]);
$NewLineLength = count($NewFileLocation) == 2 ? $NewFileLocation[1] - $NewFileLocation[0] + 1 : 1;
for ($LineCounter = 0; $LineCounter < $InsertLength; $LineCounter++) {
if ($LineCounter < $NewLineLength) {
$linenumber++;
$TempLine = array('mode' => "+", 'text' => substr($DiffLines[$linenumber], 2));
$FilePatching = InsertIntoArray($FilePatching, $TempLine, $InsertLocation[0] + $LineCounter + $LineOffset);
$LineOffset++;
}
$FilePatching[$InsertLocation[0] - 2 + $LineCounter + $LineOffset]['mode'] = '-';
}
for ($LineCounter = $InsertLength; $LineCounter < $NewLineLength; $LineCounter++) {
$linenumber++;
$TempLine = array('mode' => "+", 'text' => substr($DiffLines[$linenumber], 2));
$FilePatching = InsertIntoArray($FilePatching, $TempLine, $InsertLocation[0] + $LineCounter + $LineOffset);
}
} else {
if (strpos($DiffLines[$linenumber], "d") !== false) {
// we have removed a line or lines.
$Parts = explode("d", $DiffLines[$linenumber]);
$DeleteLocation = explode(",", $Parts[0]);
$OldLineLocation = explode(",", $Parts[1]);
$DeleteLength = count($DeleteLocation) == 2 ? $DeleteLocation[1] - $DeleteLocation[0] + 1 : 1;
for ($LineCounter = 0; $LineCounter < $DeleteLength; $LineCounter++) {
$FilePatching[$OldLineLocation[0] + $LineCounter + $LineOffset]['mode'] = '-';
$LineOffset++;
$linenumber++;
}
}
}
}
$linenumber++;
}
// while
$search = array("<", ">", "\n", "\t", " ");
$replace = array("<", ">", "", " ", " ");
foreach ($FilePatching as $Line) {
echo ' <p class="';
switch ($Line['mode']) {
case '+':
echo "added";
break;
case '-':
echo "removed";
break;
default:
echo "normal";
}
// switch
echo '">' . str_replace($search, $replace, $Line['text']) . '</p>' . "\n";
}
echo '</div>' . "\n";
echo '<hr />' . "\n";
$CVSServer->Disconnect();
} else {
echo '<h2>ERROR: Could not connect to the PServer.</h2>';
}
}