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If the remote peer upload-pack process supports the include-tag
protocol extension then we can avoid running a second fetch cycle
on the client side by letting the server send us the annotated tags
along with the objects it is packing for us. In the following graph
we can now fetch both "tag1" and "tag2" on the same connection that
we fetched "master" from the remote when we only have L available
on the local side:
T - tag1 S - tag2
/ /
L - o ------ o ------ B
\ \
\ \
origin/master master
The objects for "tag1" are implicitly downloaded without our direct
knowledge. The existing "quickfetch" optimization within git-fetch
discovers that tag1 is complete after the first connection and does
not open a second connection.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* aw/mirror-push:
git-push: add documentation for the newly added --mirror mode
Add tests for git push'es mirror mode
git-push: plumb in --mirror mode
Teach send-pack a mirror mode
send-pack: segfault fix on forced push
send-pack: require --verbose to show update of tracking refs
receive-pack: don't mention successful updates
more terse push output
Conflicts:
transport.c
transport.h
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* db/remote-builtin:
Reteach builtin-ls-remote to understand remotes
Build in ls-remote
Use built-in send-pack.
Build-in send-pack, with an API for other programs to call.
Build-in peek-remote, using transport infrastructure.
Miscellaneous const changes and utilities
Conflicts:
transport.c
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A --verbose option to push should also be passed to the
transport layer, i.e. git-send-pack, git-http-push.
git push is modified to do so.
Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Plumb in the --mirror mode for git-push.
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The list of remote refs in struct transport should be const, because
builtin-fetch will get confused if it changes.
The url in git_connect should be const (and work on a copy) instead of
requiring the caller to copy it.
match_refs doesn't modify the refspecs it gets.
get_fetch_map and get_remote_ref don't change the list they get.
Allow transport get_refs_list methods to modify the struct transport.
Add a function to copy a list of refs, when a function needs a mutable
copy of a const list.
Add a function to check the type of a ref, as per the code in connect.c
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's a number of tricky conflicts between master and
this topic right now due to the rewrite of builtin-push.
Junio must have handled these via rerere; I'd rather not
deal with them again so I'm pre-merging master into the
topic. Besides this topic somehow started to depend on
the strbuf series that was in next, but is now in master.
It no longer compiles on its own without the strbuf API.
* master: (184 commits)
Whip post 1.5.3.4 maintenance series into shape.
Minor usage update in setgitperms.perl
manual: use 'URL' instead of 'url'.
manual: add some markup.
manual: Fix example finding commits referencing given content.
Fix wording in push definition.
Fix some typos, punctuation, missing words, minor markup.
manual: Fix or remove em dashes.
Add a --dry-run option to git-push.
Add a --dry-run option to git-send-pack.
Fix in-place editing functions in convert.c
instaweb: support for Ruby's WEBrick server
instaweb: allow for use of auto-generated scripts
Add 'git-p4 commit' as an alias for 'git-p4 submit'
hg-to-git speedup through selectable repack intervals
git-svn: respect Subversion's [auth] section configuration values
gtksourceview2 support for gitview
fix contrib/hooks/post-receive-email hooks.recipients error message
Support cvs via git-shell
rebase -i: use diff plumbing instead of porcelain
...
Conflicts:
Makefile
builtin-push.c
rsh.c
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This adds a verbosity level below 0 for suppressing default messages
with --quiet, and makes the default for http be verbose instead of
quiet. This matches the behavior of the shell script version of git-fetch.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The only way to configure the unpacking limit is currently through
the .git/config (or ~/.gitconfig) mechanism as we have no existing
command line option interface to control this threshold on a per
invocation basis. This was intentional by design as the storage
policy of the repository should be a repository-wide decision and
should not be subject to variations made on individual command
executions.
Earlier builtin-fetch was bypassing the unpacking limit chosen by
the user through the configuration file as it did not reread the
configuration options through fetch_pack_config if we called the
internal fetch_pack() API directly. We now ensure we always run the
config file through fetch_pack_config at least once in this process,
thereby setting our unpackLimit properly.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Aside from reducing the code by 20 lines this refactoring removes
a level of indirection when trying to access the operations of a
given transport "instance", making the code clearer and easier to
follow.
It also has the nice effect of giving us the benefits of C99 style
struct initialization (namely ".fetch = X") without requiring that
level of language support from our compiler. We don't need to worry
about new operation methods being added as they will now be NULL'd
out automatically by the xcalloc() we use to create the new struct
transport we supply to the caller.
This pattern already exists in struct walker, so we already have
a precedent for it in Git. We also don't really need to worry
about any sort of performance decreases that may occur as a result
of filling out 4-8 op pointers when we make a "struct transport".
The extra few CPU cycles this requires over filling in the "struct
transport_ops" is killed by the time it will take Git to actually
*use* one of those functions, as most transport operations are
going over the wire or will be copying object data locally between
two directories.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We don't actually need to know at the time of transport_get if the
caller wants to fetch, push, or do both on the returned object.
It is easier to just delay the initialization of the HTTP walker
until we know we will need it by providing a CURL specific fetch
function in the curl_transport that makes sure the walker instance
is initialized before use.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If we are using a native packfile to perform a git-fetch invocation
and the received packfile contained more than the configured limits
of fetch.unpackLimit/transfer.unpackLimit then index-pack will output
a single line saying "keep\t$sha1\n" to stdout. This line needs to
be captured and retained so we can delete the corresponding .keep
file ("$GIT_DIR/objects/pack/pack-$sha1.keep") once all refs have
been safely updated.
This trick has long been in use with git-fetch.sh and its lower level
helper git-fetch--tool as a way to allow index-pack to save the new
packfile before the refs have been updated and yet avoid a race with
any concurrently running git-repack process. It was unfortunately
lost when git-fetch.sh was converted to pure C and fetch--tool was
no longer being invoked.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit walkers need to know the SHA-1 name of any objects they
have been asked to fetch while the native pack transport only
wants to know the names of the remote refs as the remote side
must do the name->SHA-1 translation.
Since we only have three fetch implementations and one of them
(bundle) doesn't even need the name information we can reduce
the code required to perform a fetch by having just one function
and passing of the filtered list of refs to be fetched. Each
transport can then obtain the information it needs from that ref
array to construct its own internal operation state.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Conflicts:
transport.c
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This moves the code to call push backends into a library that can be
extended to make matching fetch and push decisions based on the URL it
gets, and which could be changed to have built-in implementations
instead of calling external programs.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Shawn O. Pearce
Junio C Hamano
Steffen Prohaska
Andy Whitcroft
Daniel Barkalow