merge: allow smarter tool configuration Add [merge-tool] hgrc section with: <tool>.executable = name or path (<tool>) <tool>.args = args with $local/base/other/output ($local $base $other) <tool>.priority = priority (default 0) <tool>.binary = handles binary (False) <tool>.symlink = handles symlinks (False) <tool>.checkconflict = check for conflict markers (False) <tool>.premerge = try internal simplemerge (True if not binary or symlink) Four built-in tools: internal:{merge,local,other,fail} Add [merge-patterns] section of the form: <pattern> = <tool> Priority of settings is: HGMERGE merge-patterns ui:merge merge-tools by priority hgmerge, if it can be found Changes: unsuccessful merges leave .orig files

--- a/tests/test-copy-move-merge.out	Sun Feb 03 19:29:05 2008 -0600
+++ b/tests/test-copy-move-merge.out	Sun Feb 03 19:29:05 2008 -0600
@@ -14,11 +14,15 @@
  a: remote moved to b -> m
 copying a to b
 copying a to c
+picked tool 'internal:merge' for a (binary False symlink False)
 merging a and b
 my a@fb3948d97f07+ other b@40da226db0f0 ancestor a@583c7b748052
+ premerge successful
 removing a
+picked tool 'internal:merge' for a (binary False symlink False)
 merging a and c
 my a@fb3948d97f07+ other c@40da226db0f0 ancestor a@583c7b748052
+ premerge successful
 0 files updated, 2 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 -- b --