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[PATCH v2 46/48] remote-hg: check if a fetch is needed

From
Felipe Contreras <felipe.contreras@gmail.com>
Date
May 25, 2013, 02:30 UTC
Message-ID
<1369449004-17981-47-git-send-email-felipe.contreras@gmail.com>
In-Reply-To
<1369449004-17981-1-git-send-email-felipe.contreras@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
 contrib/remote-helpers/git-remote-hg | 39 ++++++++++++++++++++
 contrib/remote-helpers/test-hg.sh    | 71 +++++++++++++++++++++++++++++++++++-
 2 files changed, 109 insertions(+), 1 deletion(-)
diff --git a/contrib/remote-helpers/git-remote-hg b/contrib/remote-helpers/git-remote-hg
index b08f909..b983627 100755
--- a/contrib/remote-helpers/git-remote-hg
+++ b/contrib/remote-helpers/git-remote-hg
@@ -973,6 +973,15 @@ def push(repo, remote, parsed_refs, p_revs):
 
     return ret
 
+def check_tip(ref, kind, name, heads):
+    try:
+        ename = '%s/%s' % (kind, name)
+        tip = marks.get_tip(ename)
+    except KeyError:
+        return True
+    else:
+        return tip in heads
+
 def do_export(parser):
     global parsed_refs, bmarks, peer
 
@@ -995,6 +1004,8 @@ def do_export(parser):
         else:
             die('unhandled export command: %s' % line)
 
+    need_fetch = False
+
     for ref, node in parsed_refs.iteritems():
         bnode = hgbin(node)
         if ref.startswith('refs/heads/branches'):
@@ -1002,6 +1013,16 @@ def do_export(parser):
             if branch in branches and bnode in branches[branch]:
                 # up to date
                 continue
+
+            if peer:
+                remotemap = peer.branchmap()
+                if remotemap and branch in remotemap:
+                    heads = [hghex(e) for e in remotemap[branch]]
+                    if not check_tip(ref, 'branches', branch, heads):
+                        print "error %s fetch first" % ref
+                        need_fetch = True
+                        continue
+
             p_revs[bnode] = ref
             print "ok %s" % ref
         elif ref.startswith('refs/heads/'):
@@ -1017,6 +1038,14 @@ def do_export(parser):
                     not (bmark == 'master' and bmark not in parser.repo._bookmarks):
                 p_bmarks.append((ref, bmark, old, new))
 
+            if peer:
+                remote_old = peer.listkeys('bookmarks').get(bmark)
+                if remote_old:
+                    if not check_tip(ref, 'bookmarks', bmark, remote_old):
+                        print "error %s fetch first" % ref
+                        need_fetch = True
+                        continue
+
             p_revs[bnode] = ref
         elif ref.startswith('refs/tags/'):
             tag = ref[len('refs/tags/'):]
@@ -1037,6 +1066,16 @@ def do_export(parser):
             # transport-helper/fast-export bugs
             continue
 
+    if need_fetch:
+        print
+        return
+
+    if dry_run:
+        if peer and not force_push:
+            checkheads(parser.repo, peer, p_revs)
+        print
+        return
+
     if peer:
         if not push(parser.repo, peer, parsed_refs, p_revs):
             # do not update bookmarks
diff --git a/contrib/remote-helpers/test-hg.sh b/contrib/remote-helpers/test-hg.sh
index aeab48a..91ddac7 100755
--- a/contrib/remote-helpers/test-hg.sh
+++ b/contrib/remote-helpers/test-hg.sh
@@ -65,6 +65,9 @@ check_push () {
 		'non-fast-forward')
 			grep "^ ! \[rejected\] *${branch} -> ${branch} (non-fast-forward)$" error || ref_ret=1
 			;;
+		'fetch-first')
+			grep "^ ! \[rejected\] *${branch} -> ${branch} (fetch first)$" error || ref_ret=1
+			;;
 		'')
 			grep "^   [a-f0-9]*\.\.[a-f0-9]* *${branch} -> ${branch}$" error || ref_ret=1
 			;;
@@ -407,7 +410,7 @@ test_expect_success 'remote update bookmark diverge' '
 	echo diverge > content &&
 	git commit -a -m diverge &&
 	check_push 1 <<-EOF
-	diverge:non-fast-forward
+	diverge:fetch-first
 	EOF
 	) &&
 
@@ -525,6 +528,72 @@ test_expect_success 'remote big push' '
 	check_bookmark hgrepo new_bmark ''
 '
 
+test_expect_success 'remote big push fetch first' '
+	test_when_finished "rm -rf hgrepo gitrepo*" &&
+
+	(
+	hg init hgrepo &&
+	cd hgrepo &&
+	echo zero > content &&
+	hg add content &&
+	hg commit -m zero &&
+	hg bookmark bad_bmark &&
+	hg bookmark good_bmark &&
+	hg bookmark -i good_bmark &&
+	hg -q branch good_branch &&
+	echo "good branch" > content &&
+	hg commit -m "good branch" &&
+	hg -q branch bad_branch &&
+	echo "bad branch" > content &&
+	hg commit -m "bad branch"
+	) &&
+
+	git clone "hg::hgrepo" gitrepo &&
+
+	(
+	cd hgrepo &&
+	hg bookmark -f bad_bmark &&
+	echo update_bmark > content &&
+	hg commit -m "update bmark"
+	) &&
+
+	(
+	cd gitrepo &&
+	echo two > content &&
+	git commit -q -a -m two &&
+
+	git checkout -q good_bmark &&
+	echo three > content &&
+	git commit -q -a -m three &&
+
+	git checkout -q bad_bmark &&
+	echo four > content &&
+	git commit -q -a -m four &&
+
+	git checkout -q branches/bad_branch &&
+	echo five > content &&
+	git commit -q -a -m five &&
+
+	check_push 1 --all <<-EOF
+	master
+	good_bmark
+	new_bmark:new
+	new_branch:new
+	bad_bmark:fetch-first
+	branches/bad_branch:festch-first
+	EOF
+
+	git fetch &&
+
+	check_push 1 --all <<-EOF
+	master
+	good_bmark
+	bad_bmark:non-fast-forward
+	branches/bad_branch:non-fast-forward
+	EOF
+	)
+'
+
 test_expect_success 'remote double failed push' '
 	test_when_finished "rm -rf hgrepo gitrepo*" &&
 
-- 
1.8.3.rc3.312.g47657de
Previous: Felipe ContrerasNext: Felipe Contreras
Message 49 of 51 in “remote-hg: fixes for next”
  1. 00/48 remote-hg: fixes for nextFelipe Contreras, May 25, 2013
  2. 01/48 remote-hg: test: be a little more quietFelipe Contreras, May 25, 2013
  3. 02/48 remote-hg: trivial reorganizationFelipe Contreras, May 25, 2013
  4. 03/48 remote-helpers: test: cleanup white-spacesFelipe Contreras, May 25, 2013
  5. 04/48 remote-helpers: test: cleanup styleFelipe Contreras, May 25, 2013
  6. 05/48 remote-helpers: tests: general improvementsFelipe Contreras, May 25, 2013
  7. 06/48 remote-helpers: test: simplify remote URLsFelipe Contreras, May 25, 2013
  8. 07/48 remote-hg: test: simplify previous branch checkoutFelipe Contreras, May 25, 2013
  9. 08/48 remote-hg: load all extensionsFelipe Contreras, May 25, 2013
  10. 09/48 remote-hg: use a shared repository storeFelipe Contreras, May 25, 2013
  11. 10/48 remote-hg: shuffle some codeFelipe Contreras, May 25, 2013
  12. 11/48 remote-hg: improve node traversingFelipe Contreras, May 25, 2013
  13. 12/48 remote-hg: add version checks to the marksFelipe Contreras, May 25, 2013
  14. 13/48 remote-hg: switch from revisions to SHA-1 noteidsFelipe Contreras, May 25, 2013
  15. 14/48 remote-hg: upgrade version 1 marksFelipe Contreras, May 25, 2013
  16. 15/48 remote-hg: ensure remote rebasing worksFelipe Contreras, May 25, 2013
  17. 16/48 remote-hg: trivial cleanupsFelipe Contreras, May 25, 2013
  18. 17/48 remote-hg: improve progress calculationFelipe Contreras, May 25, 2013
  19. 18/48 remote-hg: always point HEAD to masterFelipe Contreras, May 25, 2013
  20. 19/48 remote-hg: add tests for 'master' bookmarkFelipe Contreras, May 25, 2013
  21. 20/48 remote-bzr: simplify test checksFelipe Contreras, May 25, 2013
  22. 21/48 remote-hg: add check_bookmark() test helperFelipe Contreras, May 25, 2013
  23. 22/48 remote-hg: update bookmarks when using a remoteFelipe Contreras, May 25, 2013
  24. 23/48 remote-hg: add remote testsFelipe Contreras, May 25, 2013
  25. 24/48 remote-hg: add test to push new bookmarkFelipe Contreras, May 25, 2013
  26. 25/48 remote-hg: add test for diverged pushFelipe Contreras, May 25, 2013
  27. Eric SunshineMay 25, 2013
  28. 26/48 remote-hg: add test for bookmark divergeFelipe Contreras, May 25, 2013
  29. 27/48 remote-hg: add test for new bookmark specialFelipe Contreras, May 25, 2013
  30. Eric SunshineMay 25, 2013
  31. 28/48 remote-hg: add test for big pushFelipe Contreras, May 25, 2013
  32. 29/48 remote-hg: add test for failed double pushFelipe Contreras, May 25, 2013
  33. 30/48 remote-hg: reorganize bookmark handlingFelipe Contreras, May 25, 2013
  34. 31/48 remote-hg: force remote bookmark push selectivelyFelipe Contreras, May 25, 2013
  35. 32/48 remote-hg: only update necessary revisionsFelipe Contreras, May 25, 2013
  36. 33/48 remote-hg: implement custom push()Felipe Contreras, May 25, 2013
  37. 34/48 remote-hg: implement custom checkheads()Felipe Contreras, May 25, 2013
  38. 35/48 remote-hg: pass around revision refsFelipe Contreras, May 25, 2013
  39. 36/48 remote-hg: check diverged bookmarksFelipe Contreras, May 25, 2013
  40. 37/48 remote-hg: simplify branch_tip()Felipe Contreras, May 25, 2013
  41. 38/48 remote-hg: improve branch listingFelipe Contreras, May 25, 2013
  42. 39/48 remote-hg: use remote 'default' not local oneFelipe Contreras, May 25, 2013
  43. 40/48 remote-hg: improve lightweight tag authorFelipe Contreras, May 25, 2013
  44. 41/48 remote-hg: remove files before modificationsFelipe Contreras, May 25, 2013
  45. 42/48 remote-hg: add setup_big_push() helperFelipe Contreras, May 25, 2013
  46. 43/48 remote-hg: add check_push() helperFelipe Contreras, May 25, 2013
  47. 44/48 remote-helpers: improve marks usageFelipe Contreras, May 25, 2013
  48. 45/48 remote-hg: trivial cleanupFelipe Contreras, May 25, 2013
  49. 46/48 remote-hg: check if a fetch is neededFelipe Contreras, May 25, 2013
  50. 47/48 remote-hg: add support for --dry-runFelipe Contreras, May 25, 2013
  51. 48/48 remote-hg: add support for --forceFelipe Contreras, May 25, 2013

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