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authorMeik Sievertsen <acydburn@phpbb.com>2009-09-17 08:14:56 +0000
committerMeik Sievertsen <acydburn@phpbb.com>2009-09-17 08:14:56 +0000
commit0b0c9544a33b8daee65b8173f2895d43a34c7e69 (patch)
tree05e7413078688f140cf4993ed12feb4e3e0a72bc /phpBB
parent6b5d195a980145011800125f44466ab4823654f2 (diff)
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found a much better method to skip whitespace/tab changes. :)
This also solves even more unncessary conflicts - Bug #51365 git-svn-id: file:///svn/phpbb/branches/phpBB-3_0_0@10157 89ea8834-ac86-4346-8a33-228a782c2dd0
Diffstat (limited to 'phpBB')
-rw-r--r--phpBB/docs/CHANGELOG.html2
-rw-r--r--phpBB/includes/diff/engine.php27
2 files changed, 9 insertions, 20 deletions
diff --git a/phpBB/docs/CHANGELOG.html b/phpBB/docs/CHANGELOG.html
index 6d34d05f27..f79c7c7a9b 100644
--- a/phpBB/docs/CHANGELOG.html
+++ b/phpBB/docs/CHANGELOG.html
@@ -243,7 +243,7 @@
<li>[Change] Do not take edit post time into account for determining permission to delete last post in topic. (Bug #48615)</li>
<li>[Change] Resize oversized Topic icons (Bug #44415)</li>
<li>[Change] Banned IPs are now sorted (Bug #43045 - Patch by DavidIQ)</li>
- <li>[Change] phpBB updater now skips sole whitespace changes. This reduces the chance of conflicts tremendously.</li>
+ <li>[Change] phpBB updater now skips sole whitespace/tab changes while computing differences. This reduces the chance of conflicts tremendously.</li>
<li>[Feature] Add language selection on the registration terms page (Bug #15085 - Patch by leviatan21)</li>
<li>[Feature] Backported 3.2 captcha plugins.
<ul>
diff --git a/phpBB/includes/diff/engine.php b/phpBB/includes/diff/engine.php
index e9f0e41b75..da7b4344a3 100644
--- a/phpBB/includes/diff/engine.php
+++ b/phpBB/includes/diff/engine.php
@@ -49,6 +49,9 @@ if (!defined('IN_PHPBB'))
*/
class diff_engine
{
+ /**
+ * If set to true we trim all lines before we compare them. This ensures that sole space/tab changes do not trigger diffs.
+ */
var $skip_whitespace_changes = true;
function diff(&$from_lines, &$to_lines, $preserve_cr = true)
@@ -87,7 +90,7 @@ class diff_engine
// Skip leading common lines.
for ($skip = 0; $skip < $n_from && $skip < $n_to; $skip++)
{
- if ($from_lines[$skip] !== $to_lines[$skip])
+ if (trim($from_lines[$skip]) !== trim($to_lines[$skip]))
{
break;
}
@@ -100,7 +103,7 @@ class diff_engine
for ($endskip = 0; --$xi > $skip && --$yi > $skip; $endskip++)
{
- if ($from_lines[$xi] !== $to_lines[$yi])
+ if (trim($from_lines[$xi]) !== trim($to_lines[$yi]))
{
break;
}
@@ -110,12 +113,12 @@ class diff_engine
// Ignore lines which do not exist in both files.
for ($xi = $skip; $xi < $n_from - $endskip; $xi++)
{
- $xhash[$from_lines[$xi]] = 1;
+ if ($this->skip_whitespace_changes) $xhash[trim($from_lines[$xi])] = 1; else $xhash[$from_lines[$xi]] = 1;
}
for ($yi = $skip; $yi < $n_to - $endskip; $yi++)
{
- $line = $to_lines[$yi];
+ $line = ($this->skip_whitespace_changes) ? trim($to_lines[$yi]) : $to_lines[$yi];
if (($this->ychanged[$yi] = empty($xhash[$line])))
{
@@ -128,7 +131,7 @@ class diff_engine
for ($xi = $skip; $xi < $n_from - $endskip; $xi++)
{
- $line = $from_lines[$xi];
+ $line = ($this->skip_whitespace_changes) ? trim($from_lines[$xi]) : $from_lines[$xi];
if (($this->xchanged[$xi] = empty($yhash[$line])))
{
@@ -178,20 +181,6 @@ class diff_engine
$add[] = $to_lines[$yi++];
}
- // Here we are a bit naughty. Naughty Boy... Naughty Boy...
- // We check if delete and add is filled and only consist of one item
- if ($this->skip_whitespace_changes && sizeof($delete) == 1 && sizeof($add) == 1)
- {
- // Now we simply trim the string and see if the lines are identical
- // If they are identical we do not need to take them into account for the merge (less conflicts in phpBB)
- if (trim($delete[0]) === trim($add[0]))
- {
- // This line ensures the line found here is correctly copied later (remember: we naughty boys like loops)
- $xi--; $yi--; $this->xchanged[$xi] = $this->ychanged[$yi] = false;
- $delete = $add = array();
- }
- }
-
if ($delete && $add)
{
$edits[] = new diff_op_change($delete, $add);