This is v3 of the series. I think I have addressed all of the feedback
from v1 [1] and v2 [2]. Thanks to Stefan, Junio, and Peff for their
feedback about v2.
There are three significant changes since v2:
* Add a patch
delete_refs(): bail early if the packed-refs file cannot be rewritten
that changes delete_refs() to bail early if repack_without_refs()
fails. See the log message for the explanation.
* Add a patch
prune_refs(): use delete_refs()
that changes "git fetch --prune" to use delete_refs() as well. This
is analogous to the existing patch
prune_remote(): use delete_refs()
(Both of these changes remove quadratic behavior that can be
extremely expensive in repositories with many packed refs.)
* Append four more commits that change how delete_ref() interprets its
`old_sha1` parameter, to make it consistent with
ref_transaction_delete() and friends:
check_branch_commit(): make first parameter const
update_ref(): don't read old reference value before delete
cmd_update_ref(): make logic more straightforward
delete_ref(): use the usual convention for old_sha1
This change was suggested by Junio [3].
The last change is good for consistency, but less important than
expected in the real world. The reason is that the convention of
ref_transaction_delete() is that passing NULL_SHA1 as old_sha1 is a
bug (because why would somebody delete a reference that he knows not
to exist?) So we don't really gain a useful third case, though we do
gain a consistency check that might be useful someday. However, if you
don't like this change, the last four commits can be dropped
(actually, commits N-3 through N-1 are marginally useful cleanups
anyway so probably only the last commit should be dropped in this
case).
Other, minor changes since v2:
* Improve the commit message of "delete_refs(): make error message
more generic".
* Better explain the change to error output caused by "prune_remote():
use delete_refs()" in that commit's log message.
* Split the "add names for function parameters" changes into a
separate patch.
* Fix how die() is invoked in "initial_ref_transaction_commit():
function for initial ref creation" and remove some superfluous
braces.
This series is also available from my GitHub account [4] as branch
"init-delete-refs-api".
[1] http://thread.gmane.org/gmane.comp.version-control.git/271017
[2] http://thread.gmane.org/gmane.comp.version-control.git/271552
[3] http://article.gmane.org/gmane.comp.version-control.git/271697
[4] https://github.com/mhagger/git
Michael Haggerty (19):
delete_ref(): move declaration to refs.h
remove_branches(): remove temporary
delete_ref(): handle special case more explicitly
delete_refs(): new function for the refs API
delete_refs(): make error message more generic
delete_refs(): bail early if the packed-refs file cannot be rewritten
prune_remote(): use delete_refs()
prune_refs(): use delete_refs()
repack_without_refs(): make function private
initial_ref_transaction_commit(): function for initial ref creation
refs: remove some functions from the module's public interface
initial_ref_transaction_commit(): check for duplicate refs
initial_ref_transaction_commit(): check for ref D/F conflicts
refs: move the remaining ref module declarations to refs.h
refs.h: add some parameter names to function declarations
check_branch_commit(): make first parameter const
update_ref(): don't read old reference value before delete
cmd_update_ref(): make logic more straightforward
delete_ref(): use the usual convention for old_sha1
archive.c | 1 +
builtin/blame.c | 1 +
builtin/branch.c | 5 +-
builtin/clone.c | 18 ++++-
builtin/fast-export.c | 1 +
builtin/fetch.c | 25 ++++--
builtin/fmt-merge-msg.c | 1 +
builtin/init-db.c | 1 +
builtin/log.c | 1 +
builtin/remote.c | 33 +-------
builtin/update-ref.c | 21 ++++-
cache.h | 68 ----------------
fast-import.c | 6 +-
refs.c | 182 ++++++++++++++++++++++++++++++++++++++---
refs.h | 211 +++++++++++++++++++++++++++++++-----------------
remote-testsvn.c | 1 +
16 files changed, 371 insertions(+), 205 deletions(-)
--
2.1.4
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