D6588: abort: added support for merge

[taapas1128 (Taapas Agrawal)]

taapas1128 updated this revision to Diff 15761.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST UPDATE
  https://phab.mercurial-scm.org/D6588?vs=15760&id=15761

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D6588/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D6588

AFFECTED FILES
  mercurial/commands.py
  mercurial/hg.py
  mercurial/state.py
  tests/test-commit-unresolved.t

CHANGE DETAILS

diff --git a/tests/test-commit-unresolved.t b/tests/test-commit-unresolved.t
--- a/tests/test-commit-unresolved.t
+++ b/tests/test-commit-unresolved.t
@@ -1,3 +1,11 @@
+#testcases hgabort abortflag
+#if abortflag
+  $ cat >> $HGRCPATH <<EOF
+  > [alias]
+  > abort = merge --abort
+  > EOF
+#endif
+
   $ addcommit () {
   >     echo $1 > $1
   >     hg add $1
@@ -36,9 +44,16 @@
 
 Testing the abort functionality first in case of conflicts
 
+#if abortflag
   $ hg merge --abort
   abort: no merge in progress
   [255]
+#else
+  $ hg abort
+  abort: no operation in progress
+  [255]
+#endif
+
   $ hg merge
   merging A
   warning: conflicts while merging A! (edit, then use 'hg resolve --mark')
@@ -53,7 +68,24 @@
   abort: cannot specify both --rev and --abort
   [255]
 
-  $ hg merge --abort
+#if hgabort
+when in dry-run mode
+  $ hg abort --dry-run
+  aborting merge
+
+when in no-backup mode
+  $ hg abort --no-backup
+  abort: merge does not support no-backup flag
+  [255]
+
+when dry-run mode is used with no backup
+  $ hg abort --dry-run --no-backup
+  aborting merge
+  abort: merge does not support no-backup flag
+  [255]
+#endif
+
+  $ hg abort
   aborting the merge, updating back to e45016d2b3d3
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
@@ -131,7 +163,7 @@
   abort: cannot specify --preview with --abort
   [255]
 
-  $ hg merge --abort
+  $ hg abort
   aborting the merge, updating back to 68352a18a7c4
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
diff --git a/mercurial/state.py b/mercurial/state.py
--- a/mercurial/state.py
+++ b/mercurial/state.py
@@ -205,13 +205,6 @@
                  'To mark the changeset bad:     hg bisect --bad\n'
                  'To abort:                      hg bisect --reset\n')
 )
-addunfinished(
-    'merge', fname=None, clearable=True, allowcommit=True,
-    cmdmsg=_('outstanding uncommitted merge'),
-    statushint=_('To continue:    hg commit\n'
-                 'To abort:       hg merge --abort'),
-    cmdhint=_("use 'hg commit' or 'hg merge --abort'")
-)
 
 def getrepostate(repo):
     # experimental config: commands.status.skipstates
diff --git a/mercurial/hg.py b/mercurial/hg.py
--- a/mercurial/hg.py
+++ b/mercurial/hg.py
@@ -956,23 +956,11 @@
           abort=False):
     """Branch merge with node, resolving changes. Return true if any
     unresolved conflicts."""
-    if not abort:
-        stats = mergemod.update(repo, node, branchmerge=True, force=force,
-                                mergeforce=mergeforce, labels=labels)
-    else:
-        ms = mergemod.mergestate.read(repo)
-        if ms.active():
-            # there were conflicts
-            node = ms.localctx.hex()
-        else:
-            # there were no conficts, mergestate was not stored
-            node = repo['.'].hex()
-
-        repo.ui.status(_("aborting the merge, updating back to"
-                         " %s\n") % node[:12])
-        stats = mergemod.update(repo, node, branchmerge=False, force=True,
-                                labels=labels)
-
+    if abort:
+        return abortmerge(repo.ui, repo, labels=labels)
+
+    stats = mergemod.update(repo, node, branchmerge=True, force=force,
+                            mergeforce=mergeforce, labels=labels)
     _showstats(repo, stats)
     if stats.unresolvedcount:
         repo.ui.status(_("use 'hg resolve' to retry unresolved file merges "
@@ -981,6 +969,25 @@
         repo.ui.status(_("(branch merge, don't forget to commit)\n"))
     return stats.unresolvedcount > 0
 
+def abortmerge(ui, repo, labels=None, **opts):
+    if opts.get('no_backup'):
+        raise error.Abort(_("merge does not support no-backup flag"))
+    if opts.get('dry_run'):
+        return 0
+    ms = mergemod.mergestate.read(repo)
+    if ms.active():
+        # there were conflicts
+        node = ms.localctx.hex()
+    else:
+        # there were no conficts, mergestate was not stored
+        node = repo['.'].hex()
+
+    repo.ui.status(_("aborting the merge, updating back to"
+                     " %s\n") % node[:12])
+    stats = mergemod.update(repo, node, branchmerge=False, force=True,
+                            labels=labels)
+    _showstats(repo, stats)
+
 def _incoming(displaychlist, subreporecurse, ui, repo, source,
         opts, buffered=False):
     """
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -4101,6 +4101,14 @@
         return hg.merge(repo, node, force=force, mergeforce=force,
                         labels=labels, abort=abort)
 
+statemod.addunfinished(
+    'merge', fname=None, clearable=True, allowcommit=True,
+    cmdmsg=_('outstanding uncommitted merge'), abortfunc=hg.abortmerge,
+    statushint=_('To continue:    hg commit\n'
+                 'To abort:       hg merge --abort'),
+    cmdhint=_("use 'hg commit' or 'hg merge --abort'")
+)
+
 @command('outgoing|out',
     [('f', 'force', None, _('run even when the destination is unrelated')),
     ('r', 'rev', [],



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