changeset 12788:de793925862e

merge: implement --tool arguments using new ui.forcemerge configurable ui.forcemerge is set before calling into merge or resolve commands, then unset to prevent ui pollution for further operations. ui.forcemerge takes precedence over HGMERGE, but mimics HGMERGE behavior if the given --tool is not found by the merge-tools machinery. This makes it possible to do: hg resolve --tool="python mymerge.py" FILE With this approach, HGMERGE and ui.merge are not harmed by --tool
author Steve Borho <steve@borho.org>
date Tue, 19 Oct 2010 22:33:52 -0500
parents 763be3cd084a
children 24999db620cd
files mercurial/commands.py mercurial/filemerge.py tests/test-merge-symlinks.t tests/test-merge-tools.t tests/test-rename-merge2.t tests/test-resolve.t
diffstat 6 files changed, 70 insertions(+), 21 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/commands.py	Wed Oct 20 20:19:34 2010 +0200
+++ b/mercurial/commands.py	Tue Oct 19 22:33:52 2010 -0500
@@ -2586,12 +2586,6 @@
     if not node:
         node = opts.get('rev')
 
-    t = opts.get('tool')
-    if t:
-        if 'HGMERGE' in os.environ:
-            os.environ['HGMERGE'] = ''
-        ui.setconfig('ui', 'merge', t)
-
     if not node:
         branch = repo.changectx(None).branch()
         bheads = repo.branchheads(branch)
@@ -2632,7 +2626,12 @@
         displayer.close()
         return 0
 
-    return hg.merge(repo, node, force=opts.get('force'))
+    try:
+        # ui.forcemerge is an internal variable, do not document
+        ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
+        return hg.merge(repo, node, force=opts.get('force'))
+    finally:
+        ui.setconfig('ui', 'forcemerge', '')
 
 def outgoing(ui, repo, dest=None, **opts):
     """show changesets not found in the destination
@@ -2979,12 +2978,6 @@
         raise util.Abort(_('no files or directories specified; '
                            'use --all to remerge all files'))
 
-    t = opts.get('tool')
-    if t:
-        if 'HGMERGE' in os.environ:
-            os.environ['HGMERGE'] = ''
-        ui.setconfig('ui', 'merge', t)
-
     ms = mergemod.mergestate(repo)
     m = cmdutil.match(repo, pats, opts)
     ret = 0
@@ -3010,9 +3003,13 @@
                 a = repo.wjoin(f)
                 util.copyfile(a, a + ".resolve")
 
-                # resolve file
-                if ms.resolve(f, wctx, mctx):
-                    ret = 1
+                try:
+                    # resolve file
+                    ui.setconfig('ui', 'forcemerge', opts.get('tool', ''))
+                    if ms.resolve(f, wctx, mctx):
+                        ret = 1
+                finally:
+                    ui.setconfig('ui', 'forcemerge', '')
 
                 # replace filemerge's .orig file with our resolve file
                 util.rename(a + ".resolve", a + ".orig")
--- a/mercurial/filemerge.py	Wed Oct 20 20:19:34 2010 +0200
+++ b/mercurial/filemerge.py	Tue Oct 19 22:33:52 2010 -0500
@@ -54,7 +54,17 @@
             return True
         return False
 
-    # HGMERGE takes precedence
+    # forcemerge comes from command line arguments, highest priority
+    force = ui.config('ui', 'forcemerge')
+    if force:
+        toolpath = _findtool(ui, force)
+        if toolpath:
+            return (force, '"' + toolpath + '"')
+        else:
+            # mimic HGMERGE if given tool not found
+            return (force, force)
+
+    # HGMERGE takes next precedence
     hgmerge = os.environ.get("HGMERGE")
     if hgmerge:
         return (hgmerge, hgmerge)
--- a/tests/test-merge-symlinks.t	Wed Oct 20 20:19:34 2010 +0200
+++ b/tests/test-merge-symlinks.t	Tue Oct 19 22:33:52 2010 -0500
@@ -37,7 +37,7 @@
 Merge them and display *_ISLINK vars
 merge heads
 
-  $ HGMERGE="python ../echo.py" hg merge
+  $ hg merge --tool="python ../echo.py"
   HG_FILE l
   HG_MY_ISLINK 1
   HG_OTHER_ISLINK 0
--- a/tests/test-merge-tools.t	Wed Oct 20 20:19:34 2010 +0200
+++ b/tests/test-merge-tools.t	Tue Oct 19 22:33:52 2010 -0500
@@ -506,6 +506,49 @@
   $ echo
   
 
+ui.merge specifies internal:other but is overruled by --tool=false
+
+  $ domerge -r 2 --config ui.merge=internal:other --tool=false
+  [merge-tools]
+  false.whatever=
+  true.priority=1
+  true.executable=cat
+  # hg update -C 1
+  # hg merge -r 2 --config ui.merge=internal:other --tool=false
+  merging f
+  merging f failed!
+  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
+  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
+  # cat f
+  revision 1
+  space
+  # hg stat
+  M f
+  ? f.orig
+  
+HGMERGE specifies internal:other but is overruled by --tool=false
+
+  $ HGMERGE=internal:other ; export HGMERGE
+  $ domerge -r 2 --tool=false
+  [merge-tools]
+  false.whatever=
+  true.priority=1
+  true.executable=cat
+  # hg update -C 1
+  # hg merge -r 2 --tool=false
+  merging f
+  merging f failed!
+  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
+  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
+  # cat f
+  revision 1
+  space
+  # hg stat
+  M f
+  ? f.orig
+  
+  $ unset HGMERGE # make sure HGMERGE doesn't interfere with remaining tests
+
 Default is silent simplemerge:
 
   $ domerge -r 3
--- a/tests/test-rename-merge2.t	Wed Oct 20 20:19:34 2010 +0200
+++ b/tests/test-rename-merge2.t	Tue Oct 19 22:33:52 2010 -0500
@@ -7,7 +7,6 @@
   > f.write("merge %s %s %s" % (sys.argv[1], sys.argv[2], sys.argv[3]))
   > f.close()
   > EOF
-  $ HGMERGE="python ../merge"; export HGMERGE
 
 perform a test merge with possible renaming
 args:
@@ -49,7 +48,7 @@
   >     echo "--------------"
   >     echo "test L:$1 R:$2 W:$3 - $4"
   >     echo "--------------"
-  >     hg merge -y --debug --traceback
+  >     hg merge -y --debug --traceback --tool="python ../merge"
   > 
   >     echo "--------------"
   >     hg status -camC -X rev
--- a/tests/test-resolve.t	Wed Oct 20 20:19:34 2010 +0200
+++ b/tests/test-resolve.t	Tue Oct 19 22:33:52 2010 -0500
@@ -21,7 +21,7 @@
 
 failing merge
 
-  $ HGMERGE=internal:fail hg merge
+  $ hg merge --tool=internal:fail
   0 files updated, 0 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
   [1]