remote-hg: add support for --force

And get rid of the remote-hg.force-push option hack.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

contrib/remote-helpers/git-remote-hg

@@ -29,9 +29,6 @@ import urlparse, hashlib
 # named branches:
 # git config --global remote-hg.track-branches false
 #
-# If you don't want to force pushes (and thus risk creating new remote heads):
-# git config --global remote-hg.force-push false
-#
 # If you want the equivalent of hg's clone/pull--insecure option:
 # git config --global remote-hg.insecure true
 #
@@ -877,9 +874,6 @@ def write_tag(repo, tag, node, msg, author):
     return (tagnode, branch)
 
 def checkheads_bmark(repo, ref, ctx):
-    if force_push:
-        return True
-
     bmark = ref[len('refs/heads/'):]
     if not bmark in bmarks:
         # new bmark
@@ -888,6 +882,9 @@ def checkheads_bmark(repo, ref, ctx):
     ctx_old = bmarks[bmark]
     ctx_new = ctx
     if not repo.changelog.descendant(ctx_old.rev(), ctx_new.rev()):
+        if force_push:
+            print "ok %s forced update" % ref
+        else:
             print "error %s non-fast forward" % ref
             return False
 
@@ -936,7 +933,11 @@ def checkheads(repo, remote, p_revs):
                 continue
 
             node = repo.changelog.node(rev)
-            print "error %s non-fast forward" % p_revs[node]
+            ref = p_revs[node]
+            if force_push:
+                print "ok %s forced update" % ref
+            else:
+                print "error %s non-fast forward" % ref
                 ret = False
 
     return ret
@@ -949,7 +950,7 @@ def push_unsafe(repo, remote, parsed_refs, p_revs):
     commoninc = fci(repo, remote, force=force)
     common, _, remoteheads = commoninc
 
-    if not force and not checkheads(repo, remote, p_revs):
+    if not checkheads(repo, remote, p_revs):
         return None
 
     cg = repo.getbundle('push', heads=list(p_revs), common=common)
@@ -1110,11 +1111,14 @@ def do_export(parser):
     print
 
 def do_option(parser):
-    global dry_run
+    global dry_run, force_push
     _, key, value = parser.line.split(' ')
     if key == 'dry-run':
         dry_run = (value == 'true')
         print 'ok'
+    elif key == 'force':
+        force_push = (value == 'true')
+        print 'ok'
     else:
         print 'unsupported'
 
@@ -1142,7 +1146,7 @@ def main(args):
 
     hg_git_compat = get_config_bool('remote-hg.hg-git-compat')
     track_branches = get_config_bool('remote-hg.track-branches', True)
-    force_push = get_config_bool('remote-hg.force-push')
+    force_push = False
 
     if hg_git_compat:
         mode = 'hg'

contrib/remote-helpers/test-hg.sh

@@ -68,6 +68,9 @@ check_push () {
 		'fetch-first')
 			grep "^ ! \[rejected\] *${branch} -> ${branch} (fetch first)$" error || ref_ret=1
 			;;
+		'forced-update')
+			grep "^ + [a-f0-9]*\.\.\.[a-f0-9]* *${branch} -> ${branch} (forced update)$" error || ref_ret=1
+			;;
 		'')
 			grep "^   [a-f0-9]*\.\.[a-f0-9]* *${branch} -> ${branch}$" error || ref_ret=1
 			;;
@@ -594,6 +597,36 @@ test_expect_success 'remote big push fetch first' '
 	)
 '
 
+test_expect_failure 'remote big push force' '
+	test_when_finished "rm -rf hgrepo gitrepo*" &&
+
+	setup_big_push
+
+	(
+	cd gitrepo &&
+
+	check_push 0 --force --all <<-EOF
+	master
+	good_bmark
+	branches/good_branch
+	new_bmark:new
+	branches/new_branch:new
+	bad_bmark1:forced-update
+	bad_bmark2:forced-update
+	branches/bad_branch:forced-update
+	EOF
+	) &&
+
+	check_branch hgrepo default six &&
+	check_branch hgrepo good_branch eight &&
+	check_branch hgrepo bad_branch nine &&
+	check_branch hgrepo new_branch ten &&
+	check_bookmark hgrepo good_bmark three &&
+	check_bookmark hgrepo bad_bmark1 four &&
+	check_bookmark hgrepo bad_bmark2 five &&
+	check_bookmark hgrepo new_bmark six
+'
+
 test_expect_failure 'remote big push dry-run' '
 	test_when_finished "rm -rf hgrepo gitrepo*" &&