From 1eacf0f983ef27e8795460b9dc5973f2fb063864 Mon Sep 17 00:00:00 2001
From: Torgny Nyblom <kde@nyblom.org>
Date: Thu, 16 Dec 2010 09:52:10 +0100
Subject: Try and fix cvs2svn multiple merge points for branches and tags.

Might still need some logic for detecting the correct from branch.
---
 src/repository.cpp | 46 +++++++++++++++++++++++++++-------------------
 1 file changed, 27 insertions(+), 19 deletions(-)

(limited to 'src')

diff --git a/src/repository.cpp b/src/repository.cpp
index a35980f..88cd196 100644
--- a/src/repository.cpp
+++ b/src/repository.cpp
@@ -647,28 +647,36 @@ void Repository::Transaction::commit()
     // note some of the inferred merges
     QByteArray desc = "";
     int i = !!parentmark;	// if parentmark != 0, there's at least one parent
-    foreach (int merge, merges) {
-        if (merge == parentmark) {
-            qDebug() << "Skipping marking" << merge << "as a merge point as it matches the parent";
-            continue;
-        }
 
-        if (++i > 16) {
-            // FIXME: options:
-            //   (1) ignore the 16 parent limit
-            //   (2) don't emit more than 16 parents
-            //   (3) create another commit on branch to soak up additional parents
-            // we've chosen option (2) for now, since only artificial commits
-            // created by cvs2svn seem to have this issue
-            qWarning() << "too many merge parents";
-           break;
-        }
+    if(log.contains("This commit was manufactured by cvs2svn to create ")) {
+        qSort(merges);
+        repository->fastImport.write("merge :" + QByteArray::number(merges.last()) + "\n");
+        merges.pop_back();
+        qWarning() << "WARN: Discarding all but the highest merge point as a workaround for cvs2svn created branch/tag"
+                      << "Discarded marks:" << merges;
+    } else {
+        foreach (const int merge, merges) {
+            if (merge == parentmark) {
+                qDebug() << "Skipping marking" << merge << "as a merge point as it matches the parent";
+                continue;
+            }
 
-        QByteArray m = " :" + QByteArray::number(merge);
-        desc += m;
-        repository->fastImport.write("merge" + m + "\n");
-    }
+            if (++i > 16) {
+                // FIXME: options:
+                //   (1) ignore the 16 parent limit
+                //   (2) don't emit more than 16 parents
+                //   (3) create another commit on branch to soak up additional parents
+                // we've chosen option (2) for now, since only artificial commits
+                // created by cvs2svn seem to have this issue
+                qWarning() << "WARN: too many merge parents";
+                break;
+            }
 
+            QByteArray m = " :" + QByteArray::number(merge);
+            desc += m;
+            repository->fastImport.write("merge" + m + "\n");
+        }
+    }
     // write the file deletions
     if (deletedFiles.contains(""))
         repository->fastImport.write("deleteall\n");
-- 
cgit v1.2.1