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[PATCH v3 18/23] transport-helper: change import semantics

From
Sverre Rabbelier <srabbelier@gmail.com>
Date
Jul 16, 2011, 13:03 UTC
Message-ID
<1310821424-4750-19-git-send-email-srabbelier@gmail.com>
In-Reply-To
<1310821424-4750-1-git-send-email-srabbelier@gmail.com>

Currently the helper must somehow guess how many import statements to read before it starts outputting its fast-export stream. This is because the remote helper infrastructure runs fast-import only once, so the helper is forced to output one stream for all import commands it will receive. The only reason this worked in the past was because only one ref was imported at a time.

Change the semantics of the import statement such that it matches that of the push statement. That is, the import statement is followed by a series of import statements that are terminated by a '\n'.

Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
---
  As Jonathan suggested we now follow push' example, rather than
  'list'. It makes the remote-testgit code a bit longer, but it means
  less changes to remote-helper.c.
 git-remote-testgit.py     |   16 +++++++++++++++-
 t/t5800-remote-helpers.sh |    2 +-
 transport-helper.c        |    3 +++
 3 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/git-remote-testgit.py b/git-remote-testgit.py
index 0b5928d..1ed7a56 100644
--- a/git-remote-testgit.py
+++ b/git-remote-testgit.py
@@ -120,8 +120,22 @@ def do_import(repo, args):
     if not repo.gitdir:
         die("Need gitdir to import")
 
+    ref = args[0]
+    refs = [ref]
+
+    while True:
+        line = sys.stdin.readline()
+        if line == '\n':
+            break
+        if not line.startswith('import '):
+            die("Expected import line.")
+
+        # strip of leading 'import '
+        ref = line[7:].strip()
+        refs.append(ref)
+
     repo = update_local_repo(repo)
-    repo.exporter.export_repo(repo.gitdir, args)
+    repo.exporter.export_repo(repo.gitdir, refs)
 
     print "done"
 
diff --git a/t/t5800-remote-helpers.sh b/t/t5800-remote-helpers.sh
index 12f471c..1c62001 100755
--- a/t/t5800-remote-helpers.sh
+++ b/t/t5800-remote-helpers.sh
@@ -98,7 +98,7 @@ test_expect_success 'fetch new branch' '
 	compare_refs public HEAD localclone FETCH_HEAD
 '
 
-test_expect_failure 'fetch multiple branches' '
+test_expect_success 'fetch multiple branches' '
 	(cd localclone &&
 	 git fetch
 	) &&
diff --git a/transport-helper.c b/transport-helper.c
index a8f69b0..0c00be9 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -418,6 +418,9 @@ static int fetch_with_import(struct transport *transport,
 		sendline(data, &buf);
 		strbuf_reset(&buf);
 	}
+
+	write_constant(data->helper->in, "\n");
+
 	if (finish_command(&fastimport))
 		die("Error while running fast-import");
 	free(fastimport.argv);
-- 
1.7.5.1.292.g728120
Previous: Sverre RabbelierNext: Dmitry Ivankov
Message 21 of 29 in “remote-helper improvements”
  1. 00/23 remote-helper improvementsSverre Rabbelier, Jul 16, 2011
  2. 01/23 transport-helper: fix minor leak in push_refs_with_exportSverre Rabbelier, Jul 16, 2011
  3. 02/23 t5800: factor out some ref testsSverre Rabbelier, Jul 16, 2011
  4. 03/23 t5800: use skip_all instead of prereqSverre Rabbelier, Jul 16, 2011
  5. 04/23 t5800: document some non-functional parts of remote helpersSverre Rabbelier, Jul 16, 2011
  6. 05/23 git-remote-testgit: import non-HEAD refsSverre Rabbelier, Jul 16, 2011
  7. 06/23 transport-helper: don't feed bogus refs to export pushSverre Rabbelier, Jul 16, 2011
  8. 07/23 git_remote_helpers: push all refs during a non-local exportSverre Rabbelier, Jul 16, 2011
  9. Junio C HamanoJul 17, 2011
  10. Sverre RabbelierJul 23, 2011
  11. 08/23 remote-helpers: export GIT_DIR variable to helpersSverre Rabbelier, Jul 16, 2011
  12. 09/23 remote-curl: accept empty line as terminatorSverre Rabbelier, Jul 16, 2011
  13. 10/23 git-remote-testgit: only push for non-local repositoriesSverre Rabbelier, Jul 16, 2011
  14. 11/23 git-remote-testgit: fix error handlingSverre Rabbelier, Jul 16, 2011
  15. 12/23 fast-import: introduce 'done' commandSverre Rabbelier, Jul 16, 2011
  16. 13/23 fast-export: support done featureSverre Rabbelier, Jul 16, 2011
  17. 14/23 transport-helper: factor out push_update_refs_statusSverre Rabbelier, Jul 16, 2011
  18. 15/23 transport-helper: check status code of finish_commandSverre Rabbelier, Jul 16, 2011
  19. 16/23 transport-helper: use the new done feature where possibleSverre Rabbelier, Jul 16, 2011
  20. 17/23 transport-helper: update ref status after push with exportSverre Rabbelier, Jul 16, 2011
  21. 18/23 transport-helper: change import semanticsSverre Rabbelier, Jul 16, 2011
  22. Dmitry IvankovJul 18, 2011
  23. 19/23 transport-helper: Use capname for refspec capability tooSverre Rabbelier, Jul 16, 2011
  24. 20/23 transport-helper: implement marks location as capabilitySverre Rabbelier, Jul 16, 2011
  25. 21/23 transport-helper: die early on encountering deleted refsSverre Rabbelier, Jul 16, 2011
  26. 22/23 t5800: document inability to push new branch with old contentSverre Rabbelier, Jul 16, 2011
  27. 23/23 t5800: point out that deleting branches does not workSverre Rabbelier, Jul 16, 2011
  28. Jeff KingJul 18, 2011
  29. Sverre RabbelierJul 23, 2011

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