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<?php
/**
* $Horde: chora/history.php,v 1.53.8.2 2005/07/01 01:26:10 selsky Exp $
*
* Copyright 2000-2005 Anil Madhavapeddy <anil@recoil.org>
*
* See the enclosed file COPYING for license information (GPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/gpl.html.
*/
@define('CHORA_BASE', dirname(__FILE__));
require_once CHORA_BASE . '/lib/base.php';
// Exit if it's not supported.
if (is_a($VC, 'VC_svn')) {
header('Location: ' . Chora::url('browse', $where));
exit;
}
/* Spawn the file object */
$fl = &$VC->getFileObject($where, $cache);
Chora::checkError($fl);
/* $trunk contains an array of trunk revisions */
$trunk = array();
/* $branches is a hash with the branch revision as the
* key, and value being an array of revs on that branch */
$branches = array();
/* Populate $col with a list of all the branch points */
foreach ($fl->branches as $rev => $sym) {
$branches[$rev] = array();
}
/* For every revision, figure out if it is a trunk
* revision, or instead associated with a branch.
* If trunk, add it to the $trunk array.
* Otherwise, add it to an array in $branches[$branch]
*/
foreach ($fl->logs as $log) {
$rev = $log->queryRevision();
$baseRev = VC_Revision::strip($rev, 1);
$branchFound = false;
foreach ($fl->branches as $branch => $name) {
if ($branch == $baseRev) {
array_unshift($branches[$branch], $rev);
$branchFound = true;
}
}
/* If its not a branch, then add it to the trunk */
/* TODO: this silently drops vendor branches atm! - avsm */
if (!$branchFound && VC_Revision::sizeof($rev) == 2) {
array_unshift($trunk, $rev);
}
}
foreach ($branches as $col => $rows) {
/* If this branch has no actual commits on it, then it's a
* stub branch, and we can remove it for this view */
if (!sizeof($rows)) {
unset($branches[$col]);
}
}
$colset = array('#ccdeff','#eeccff','#ffeecc','#eeffcc','#ccffdd','#dcdba0');
$colStack = array();
$branchColours = array();
foreach ($branches as $brrev => $brcont) {
if (!sizeof($colStack)) $colStack = $colset;
$branchColours[$brrev] = array_shift($colset);
}
/* This takes a row and a column, and recursively iterates through
* any sub-revisions or branches from the value that was already in
* the grid at the co-ordinates that it was called with.
*
* Calling this function on every revision of the trunk is enough
* to render out the whole tree. */
function populateGrid($row, $col) {
global $grid, $branches;
/* Figure out the starting revision this function uses */
$rev = $grid[$row][$col];
/* For every branch that is known, try to see if it forks here */
$brkeys = array_keys($branches);
/* NOTE: do not optimise to use foreach () or each() here, as that
* really screws up the $branches pointer array due to the
* recursion, and parallel branches fail - avsm */
for ($a = 0; $a < sizeof($brkeys); $a++) {
$brrev = $brkeys[$a];
$brcont = $branches[$brrev];
/* Check to see if current point matches a branch point */
if (!strcmp($rev, VC_Revision::strip($brrev, 1))) {
/* If it does, figure out how many rows we have to add */
$numRows = sizeof($brcont);
/* Check rows in columns to the right, until one is free */
$insCol = $col + 1;
while (true) {
/* Look in the current column for a set value */
$inc = false;
for ($i = $row; $i <= ($row + $numRows); $i++) {
if (isset($grid[$i][$insCol])) {
$inc = true;
}
}
/* If a set value was found, shift to the right and
* try again. Otherwise, break out of the loop */
if ($inc) {
if (!isset($grid[$row][$insCol])) {
$grid[$row][$insCol] = ':' . $brcont[0];
}
$insCol++;
} else {
break;
}
}
/* Put a fork marker in the top of the branch */
$grid[$row][$insCol] = $brrev;
/* Populate the grid with the branch values at this point */
for ($i = 0; $i < $numRows; $i++) {
$grid[1 + $i + $row][$insCol] = $brcont[$i];
}
/* For each value just set, check for sub-branches,
* - but in reverse (VERY IMPORTANT!) */
for ($i = $numRows - 1; $i >= 0 ; $i--) {
populateGrid(1+$i+$row, $insCol);
}
}
}
}
/* Start row at the bottom trunk revision. Since branches always
* go down, there can never be one above 1.1, and so this is a
* safe location to start. We will then work our way up,
* recursively populating the grid with branch revisions */
for ($row = sizeof($trunk) - 1; $row >= 0; $row--) {
$grid[$row][0] = $trunk[$row];
populateGrid($row, 0);
}
/* Sort the grid array into row order, and determine the maximum column
* size that we need to render out in HTML */
ksort($grid);
$maxCol = 0;
foreach ($grid as $cols) {
krsort($cols);
list($val) = each($cols);
$maxCol = max($val, $maxCol);
}
$title = sprintf(_("Source Branching View for %s"), Text::htmlallspaces($where));
$extraLink = Chora::getFileViews();
require CHORA_TEMPLATES . '/common-header.inc';
require CHORA_TEMPLATES . '/menu.inc';
require CHORA_TEMPLATES . '/headerbar.inc';
require CHORA_TEMPLATES . '/history/header.inc';
foreach ($grid as $row) {
require CHORA_TEMPLATES . '/history/row_start.inc';
/* Start traversing the grid of rows and columns */
for ($i = 0; $i <= $maxCol; $i++) {
/* If this column has nothing in it, require a blank cell */
if (!isset($row[$i])) {
$bg = '';
require CHORA_TEMPLATES.'/history/blank.inc';
continue;
}
/* Otherwise, this cell has content; determine what it is */
$rev = $row[$i];
if (VC_Revision::valid($rev) && (VC_Revision::sizeof($rev) % 2)) {
/* This is a branch point, so put the info out */
$bg = isset($branchColours[$rev]) ? $branchColours[$rev] : 'white';
$symname = $fl->branches[$rev];
require CHORA_TEMPLATES . '/history/branch_cell.inc';
} elseif (preg_match('|^:|', $rev)) {
/* This is a continuation cell, so render it with the branch colour */
$bgbr = VC_Revision::strip(preg_replace('|^\:|', '', $rev), 1);
$bg = isset($branchColours[$bgbr]) ? $branchColours[$bgbr] : 'white';
require CHORA_TEMPLATES . '/history/blank.inc';
} elseif (VC_Revision::valid($rev)) {
/* This cell contains a revision, so render it */
$bgbr = VC_Revision::strip($rev, 1);
$bg = isset($branchColours[$bgbr]) ? $branchColours[$bgbr] : 'white';
$log = $fl->logs[$rev];
$author = Chora::showAuthorName($log->queryAuthor());
$date = strftime('%e %b %Y', $log->queryDate());
$lines = $log->queryChangedLines();
require CHORA_TEMPLATES . '/history/rev.inc';
} else {
/* Exhausted other possibilities, just show a blank cell */
require CHORA_TEMPLATES . '/history/blank.inc';
}
}
require CHORA_TEMPLATES . '/history/row_end.inc';
}
require CHORA_TEMPLATES . '/history/footer.inc';
require $registry->get('templates', 'horde') . '/common-footer.inc';
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