Commit Graph

123 Commits

Author SHA1 Message Date
Nguyễn Thái Ngọc Duy
48d25cae22 fetch: add --update-shallow to accept refs that update .git/shallow
The same steps are done as in when --update-shallow is not given. The
only difference is we now add all shallow commits in "ours" and
"theirs" to .git/shallow (aka "step 8").

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-10 16:14:17 -08:00
Nguyễn Thái Ngọc Duy
beea4152d9 clone: support remote shallow repository
Cloning from a shallow repository does not follow the "8 steps for new
.git/shallow" because if it does we need to get through step 6 for all
refs. That means commit walking down to the bottom.

Instead the rule to create .git/shallow is simpler and, more
importantly, cheap: if a shallow commit is found in the pack, it's
probably used (i.e. reachable from some refs), so we add it. Others
are dropped.

One may notice this method seems flawed by the word "probably". A
shallow commit may not be reachable from any refs at all if it's
attached to an object island (a group of objects that are not
reachable by any refs).

If that object island is not complete, a new fetch request may send
more objects to connect it to some ref. At that time, because we
incorrectly installed the shallow commit in this island, the user will
not see anything after that commit (fsck is still ok). This is not
desired.

Given that object islands are rare (C Git never sends such islands for
security reasons) and do not really harm the repository integrity, a
tradeoff is made to surprise the user occasionally but work faster
everyday.

A new option --strict could be added later that follows exactly the 8
steps. "git prune" can also learn to remove dangling objects _and_ the
shallow commits that are attached to them from .git/shallow.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-10 16:14:17 -08:00
Nguyễn Thái Ngọc Duy
75f8cbab2a transport.h: remove send_pack prototype, already defined in send-pack.h
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-10 16:14:15 -08:00
Junio C Hamano
20419de969 Merge branch 'jc/transport-do-not-use-connect-twice-in-fetch'
The auto-tag-following code in "git fetch" tries to reuse the same
transport twice when the serving end does not cooperate and does
not give tags that point to commits that are asked for as part of
the primary transfer.  Unfortunately, Git-aware transport helper
interface is not designed to be used more than once, hence this
does not work over smart-http transfer.

* jc/transport-do-not-use-connect-twice-in-fetch:
  builtin/fetch.c: Fix a sparse warning
  fetch: work around "transport-take-over" hack
  fetch: refactor code that fetches leftover tags
  fetch: refactor code that prepares a transport
  fetch: rename file-scope global "transport" to "gtransport"
  t5802: add test for connect helper
2013-09-09 14:50:37 -07:00
Junio C Hamano
b26ed4305f fetch: work around "transport-take-over" hack
A Git-aware "connect" transport allows the "transport_take_over" to
redirect generic transport requests like fetch(), push_refs() and
get_refs_list() to the native Git transport handling methods.  The
take-over process replaces transport->data with a fake data that
these method implementations understand.

While this hack works OK for a single request, it breaks when the
transport needs to make more than one requests.  transport->data
that used to hold necessary information for the specific helper to
work correctly is destroyed during the take-over process.

One codepath that this matters is "git fetch" in auto-follow mode;
when it does not get all the tags that ought to point at the history
it got (which can be determined by looking at the peeled tags in the
initial advertisement) from the primary transfer, it internally
makes a second request to complete the fetch.  Because "take-over"
hack has already destroyed the data necessary to talk to the
transport helper by the time this happens, the second request cannot
make a request to the helper to make another connection to fetch
these additional tags.

Mark such a transport as "cannot_reuse", and use a separate
transport to perform the backfill fetch in order to work around
this breakage.

Note that this problem does not manifest itself when running t5802,
because our upload-pack gives you all the necessary auto-followed
tags during the primary transfer.  You would need to step through
"git fetch" in a debugger, stop immediately after the primary
transfer finishes and writes these auto-followed tags, remove the
tag references and repack/prune the repository to convince the
"find-non-local-tags" procedure that the primary transfer failed to
give us all the necessary tags, and then let it continue, in order
to trigger the bug in the secondary transfer this patch fixes.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-07 16:24:30 -07:00
Junio C Hamano
91048a9537 push --force-with-lease: implement logic to populate old_sha1_expect[]
This plugs the push_cas_option data collected by the command line
option parser to the transport system with a new function
apply_push_cas(), which is called after match_push_refs() has
already been called.

At this point, we know which remote we are talking to, and what
remote refs we are going to update, so we can fill in the details
that may have been missing from the command line, such as

 (1) what abbreviated refname the user gave us matches the actual
     refname at the remote; and

 (2) which remote-tracking branch in our local repository to read
     the value of the object to expect at the remote.

to populate the old_sha1_expect[] field of each of the remote ref.
As stated in the documentation, the use of remote-tracking branch
as the default is a tentative one, and we may come up with a better
logic as we gain experience.

Still nobody uses this information, which is the topic of the next
patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-22 22:18:19 -07:00
Junio C Hamano
47a5918536 cache.h: move remote/connect API out of it
The definition of "struct ref" in "cache.h", a header file so
central to the system, always confused me.  This structure is not
about the local ref used by sha1-name API to name local objects.

It is what refspecs are expanded into, after finding out what refs
the other side has, to define what refs are updated after object
transfer succeeds to what values.  It belongs to "remote.h" together
with "struct refspec".

While we are at it, also move the types and functions related to the
Git transport connection to a new header file connect.h

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-08 14:34:24 -07:00
Junio C Hamano
2ddc898bc0 Merge branch 'ph/builtin-srcs-are-in-subdir-these-days'
* ph/builtin-srcs-are-in-subdir-these-days:
  fix "builtin-*" references to be "builtin/*"
2013-06-26 15:07:48 -07:00
Phil Hord
09b7e2204a fix "builtin-*" references to be "builtin/*"
Documentation and some comments still refer to files in builtin/
as 'builtin-*.[cho]'.  Update these to show the correct location.

Signed-off-by: Phil Hord <hordp@cisco.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Assisted-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-18 11:05:51 -07:00
Nguyễn Thái Ngọc Duy
c6807a40dc clone: open a shortcut for connectivity check
In order to make sure the cloned repository is good, we run "rev-list
--objects --not --all $new_refs" on the repository. This is expensive
on large repositories. This patch attempts to mitigate the impact in
this special case.

In the "good" clone case, we only have one pack. If all of the
following are met, we can be sure that all objects reachable from the
new refs exist, which is the intention of running "rev-list ...":

 - all refs point to an object in the pack
 - there are no dangling pointers in any object in the pack
 - no objects in the pack point to objects outside the pack

The second and third checks can be done with the help of index-pack as
a slight variation of --strict check (which introduces a new condition
for the shortcut: pack transfer must be used and the number of objects
large enough to call index-pack). The first is checked in
check_everything_connected after we get an "ok" from index-pack.

"index-pack + new checks" is still faster than the current "index-pack
+ rev-list", which is the whole point of this patch. If any of the
conditions fail, we fall back to the good old but expensive "rev-list
..". In that case it's even more expensive because we have to pay for
the new checks in index-pack. But that should only happen when the
other side is either buggy or malicious.

Cloning linux-2.6 over file://

        before         after
real    3m25.693s      2m53.050s
user    5m2.037s       4m42.396s
sys     0m13.750s      0m16.574s

A more realistic test with ssh:// over wireless

        before         after
real    11m26.629s     10m4.213s
user    5m43.196s      5m19.444s
sys     0m35.812s      0m37.630s

This shortcut is not applied to shallow clones, partly because shallow
clones should have no more objects than a usual fetch and the cost of
rev-list is acceptable, partly to avoid dealing with corner cases when
grafting is involved.

This shortcut does not apply to unpack-objects code path either
because the number of objects must be small in order to trigger that
code path.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-05-28 08:07:20 -07:00
Junio C Hamano
caa7d79f1f Sync with 'maint'
* maint:
  Correct common spelling mistakes in comments and tests
  kwset: fix spelling in comments
  precompose-utf8: fix spelling of "want" in error message
  compat/nedmalloc: fix spelling in comments
  compat/regex: fix spelling and grammar in comments
  obstack: fix spelling of similar
  contrib/subtree: fix spelling of accidentally
  git-remote-mediawiki: spelling fixes
  doc: various spelling fixes
  fast-export: fix argument name in error messages
  Documentation: distinguish between ref and offset deltas in pack-format
  i18n: make the translation of -u advice in one go
2013-04-12 13:54:01 -07:00
Stefano Lattarini
41ccfdd9c9 Correct common spelling mistakes in comments and tests
Most of these were found using Lucas De Marchi's codespell tool.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 13:38:40 -07:00
Junio C Hamano
55f6fbef3d Merge branch 'jc/push-follow-tag'
The new "--follow-tags" option tells "git push" to push relevant
annotated tags when pushing branches out.

* jc/push-follow-tag:
  push: --follow-tags
  commit.c: use clear_commit_marks_many() in in_merge_bases_many()
  commit.c: add in_merge_bases_many()
  commit.c: add clear_commit_marks_many()
2013-03-25 14:00:41 -07:00
Junio C Hamano
c2aba155da push: --follow-tags
The new option "--follow-tags" tells "git push" to push annotated
tags that are missing from the other side and that can be reached by
the history that is otherwise pushed out.

For example, if you are using the "simple", "current", or "upstream"
push, you would ordinarily push the history leading to the commit at
your current HEAD and nothing else.  With this option, you would
also push all annotated tags that can be reached from that commit to
the other side.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-05 13:39:46 -08:00
Junio C Hamano
370855e967 Merge branch 'jc/push-reject-reasons'
Improve error and advice messages given locally when "git push"
refuses when it cannot compute fast-forwardness by separating these
cases from the normal "not a fast-forward; merge first and push
again" case.

* jc/push-reject-reasons:
  push: finishing touches to explain REJECT_ALREADY_EXISTS better
  push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
  push: further simplify the logic to assign rejection reason
  push: further clean up fields of "struct ref"
2013-02-04 10:25:04 -08:00
Junio C Hamano
75e5c0dc55 push: introduce REJECT_FETCH_FIRST and REJECT_NEEDS_FORCE
When we push to update an existing ref, if:

 * the object at the tip of the remote is not a commit; or
 * the object we are pushing is not a commit,

it won't be correct to suggest to fetch, integrate and push again,
as the old and new objects will not "merge".  We should explain that
the push must be forced when there is a non-committish object is
involved in such a case.

If we do not have the current object at the tip of the remote, we do
not even know that object, when fetched, is something that can be
merged.  In such a case, suggesting to pull first just like
non-fast-forward case may not be technically correct, but in
practice, most such failures are seen when you try to push your work
to a branch without knowing that somebody else already pushed to
update the same branch since you forked, so "pull first" would work
as a suggestion most of the time.  And if the object at the tip is
not a commit, "pull first" will fail, without making any permanent
damage.  As a side effect, it also makes the error message the user
will get during the next "push" attempt easier to understand, now
the user is aware that a non-commit object is involved.

In these cases, the current code already rejects such a push on the
client end, but we used the same error and advice messages as the
ones used when rejecting a non-fast-forward push, i.e. pull from
there and integrate before pushing again.

Introduce new rejection reasons and reword the messages
appropriately.

[jc: with help by Peff on message details]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-24 14:37:23 -08:00
Aaron Schrab
ec55559f93 push: Add support for pre-push hooks
Add support for a pre-push hook which can be used to determine if the
set of refs to be pushed is suitable for the target repository.  The
hook is run with two arguments specifying the name and location of the
destination repository.

Information about what is to be pushed is provided by sending lines of
the following form to the hook's standard input:

  <local ref> SP <local sha1> SP <remote ref> SP <remote sha1> LF

If the hook exits with a non-zero status, the push will be aborted.

This will allow the script to determine if the push is acceptable based
on the target repository and branch(es), the commits which are to be
pushed, and even the source branches in some cases.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-18 11:13:22 -08:00
Chris Rorvick
b24e6047a8 push: add advice for rejected tag reference
Advising the user to fetch and merge only makes sense if the rejected
reference is a branch.  If none of the rejections are for branches, just
tell the user the reference already exists.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:39:50 -08:00
Chris Rorvick
10643d4ec3 push: return reject reasons as a bitset
Pass all rejection reasons back from transport_push().  The logic is
simpler and more flexible with regard to providing useful feedback.

Signed-off-by: Chris Rorvick <chris@rorvick.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-02 01:37:20 -08:00
Nguyễn Thái Ngọc Duy
f5d942e1ed send-pack: move core code to libgit.a
send_pack() is used by transport.c, part of libgit.a while it stays in
builtin/send-pack.c. Move it to send-pack.c so that we won't get
undefined reference if a program that uses libgit.a happens to pull it
in.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
2012-10-29 03:08:30 -04:00
Nguyễn Thái Ngọc Duy
754395d305 fetch: align per-ref summary report in UTF-8 locales
fetch does printf("%-*s", width, "foo") where "foo" can be a utf-8
string, but width is in bytes, not columns. For ASCII it's fine as one
byte takes one column. For utf-8, this may result in misaligned ref
summary table.

Introduce gettext_width() function that returns the string length in
columns (currently only supports utf-8 locales). Make the code use
TRANSPORT_SUMMARY(x) where the length is compensated properly in
non-English locales.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-09-14 12:45:50 -07:00
Junio C Hamano
419f2ecf78 Merge branch 'hv/submodule-recurse-push'
"git push --recurse-submodules" learns to optionally look into the
histories of submodules bound to the superproject and push them out.

By Heiko Voigt
* hv/submodule-recurse-push:
  push: teach --recurse-submodules the on-demand option
  Refactor submodule push check to use string list instead of integer
  Teach revision walking machinery to walk multiple times sequencially
2012-04-24 14:40:20 -07:00
Heiko Voigt
eb21c732d6 push: teach --recurse-submodules the on-demand option
When using this option git will search for all submodules that
have changed in the revisions to be send. It will then try to
push the currently checked out branch of each submodule.

This helps when a user has finished working on a change which
involves submodules and just wants to push everything in one go.

Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
Mentored-by: Jens Lehmann <Jens.Lehmann@web.de>
Mentored-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-30 09:02:55 -07:00
Jeff King
e339aa92ae clean up struct ref's nonfastforward field
Each ref structure contains a "nonfastforward" field which
is set during push to show whether the ref rewound history.
Originally this was a single bit, but it was changed in
f25950f (push: Provide situational hints for non-fast-forward
errors) to an enum differentiating a non-ff of the current
branch versus another branch.

However, we never actually set the member according to the
enum values, nor did we ever read it expecting anything but
a boolean value. But we did use the side effect of declaring
the enum constants to store those values in a totally
different integer variable. The code as-is isn't buggy, but
the enum declaration inside "struct ref" is somewhat
misleading.

Let's convert nonfastforward back into a single bit, and
then define the NON_FF_* constants closer to where they
would be used (they are returned via the "int *nonfastforward"
parameter to transport_push, so we can define them there).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-03-26 12:59:04 -07:00
Felipe Contreras
6ddba5e241 push: add '--prune' option
When pushing groups of refs to a remote, there is no simple way to remove
old refs that still exist at the remote that is no longer updated from us.
This will allow us to remove such refs from the remote.

With this change, running this command

 $ git push --prune remote refs/heads/*:refs/remotes/laptop/*

removes refs/remotes/laptop/foo from the remote if we do not have branch
"foo" locally anymore.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-22 18:17:39 -08:00
Fredrik Gustafsson
d2b17b3220 push: Don't push a repository with unpushed submodules
When working with submodules it is easy to forget to push a
submodule to the server but pushing a super-project that
contains a commit for that submodule. The result is that the
superproject points at a submodule commit that is not available
on the server.

This adds the option --recurse-submodules=check to push. When
using this option git will check that all submodule commits that
are about to be pushed are present on a remote of the submodule.

To be able to use a combined diff, disabling a diff callback has
been removed from combined-diff.c.

Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
Mentored-by: Jens Lehmann <Jens.Lehmann@web.de>
Mentored-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-20 23:03:52 -07:00
Jeff King
114a6a889f refactor refs_from_alternate_cb to allow passing extra data
The foreach_alt_odb function triggers a callback for each
alternate object db we have, with room for a single void
pointer as data. Currently, we always call refs_from_alternate_cb
as the callback function, and then pass another callback (to
receive each ref individually) as the void pointer.

This has two problems:

  1. C technically forbids stuffing a function pointer into
     a "void *". In practice, this probably doesn't matter
     on any architectures git runs on, but it never hurts to
     follow the letter of the law.

  2. There is no room for an extra data pointer. Indeed, the
     alternate_ref_fn that refs_from_alternate_cb calls
     takes a void* for data, but we always pass it NULL.

Instead, let's properly stuff our function pointer into a
data struct, which also leaves room for an extra
caller-supplied data pointer. And to keep things simple for
existing callers, let's make a for_each_alternate_ref
function that takes care of creating the extra struct.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-19 20:01:10 -07:00
Junio C Hamano
36cfda1552 refs_from_alternate: helper to use refs from alternates
The receiving end of "git push" advertises the objects that the repository
itself does not use, but are at the tips of refs in other repositories
whose object databases are used as alternates for it. This helps it avoid
having to receive (and the pusher having to send) objects that are already
available to the receiving repository via the alternates mechanism.

Tweak the helper function that implements this feature, and move it to
transport.[ch] for future reuse by other programs.

The additional test demonstrates how this optimization is helping "git push",
and "git fetch" is ignorant about it.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
2011-03-17 16:18:47 -07:00
Ilari Liusvaara
419f37db4d Add bidirectional_transfer_loop()
This helper function copies bidirectional stream of data between
stdin/stdout and specified file descriptors.

Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-13 16:08:58 -07:00
Junio C Hamano
53997a30f8 Merge branch 'tc/transport-verbosity'
* tc/transport-verbosity:
  transport: update flags to be in running order
  fetch and pull: learn --progress
  push: learn --progress
  transport->progress: use flag authoritatively
  clone: support multiple levels of verbosity
  push: support multiple levels of verbosity
  fetch: refactor verbosity option handling into transport.[ch]
  Documentation/git-push: put --quiet before --verbose
  Documentation/git-pull: put verbosity options before merge/fetch ones
  Documentation/git-clone: mention progress in -v

Conflicts:
	transport.h
2010-03-15 00:58:42 -07:00
Junio C Hamano
bd282f58ad Merge branch 'ml/send-pack-transport-refactor'
* ml/send-pack-transport-refactor:
  refactor duplicated code in builtin-send-pack.c and transport.c
2010-03-02 12:44:09 -08:00
Tay Ray Chuan
212cfe157e transport: update flags to be in running order
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-24 08:38:08 -08:00
Tay Ray Chuan
d01b3c02e8 transport->progress: use flag authoritatively
Set transport->progress in transport.c::transport_set_verbosity() after
checking for the appropriate conditions (eg. --progress, isatty(2)),
and thereafter use it without having to check again.

The rules used are as follows (processing aborts when a rule is
satisfied):

  1. Report progress, if force_progress is 1 (ie. --progress).
  2. Don't report progress, if verbosity < 0 (ie. -q/--quiet).
  3. Report progress if isatty(2) is 1.

This changes progress reporting behaviour such that if both --progress
and --quiet are specified, progress is reported.

In two areas, the logic to determine whether to *not* show progress is
changed to simply use the negation of transport->progress. This changes
behaviour in some ways (see previous paragraph for details).

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-24 08:35:44 -08:00
Tay Ray Chuan
8afd8dc065 push: support multiple levels of verbosity
Remove the flags TRANSPORT_PUSH_QUIET and TRANSPORT_PUSH_VERBOSE; use
transport->verbose instead to determine verbosity for pushing.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-24 08:35:44 -08:00
Tay Ray Chuan
bde873c529 fetch: refactor verbosity option handling into transport.[ch]
transport_set_verbosity() is now provided to transport users.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-24 08:35:44 -08:00
Michael Lukashov
f1863d0d16 refactor duplicated code in builtin-send-pack.c and transport.c
The following functions are (almost) identical:

  verify_remote_names
  update_tracking_ref
  refs_pushed
  print_push_status

Move common versions of these functions to transport.c and rename
them, as suggested by Jeff King and Junio C Hamano.

These functions have been removed entirely from builtin-send-pack.c,
since they are only used internally by print_push_status():

  print_ref_status
  status_abbrev
  print_ok_ref_status
  print_one_push_status

Also, move #define SUMMARY_WIDTH to transport.h and rename it
TRANSPORT_SUMMARY_WIDTH as it is used in builtin-fetch.c and
transport.c

Signed-off-by: Michael Lukashov <michael.lukashov@gmail.com>
Acked-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-17 15:07:15 -08:00
Tay Ray Chuan
b0d66e156c transport: add got_remote_refs flag
transport_get_remote_refs() in tranport.c checks transport->remote_refs
to determine whether transport->get_refs_list() should be invoked.  The
logic is "if it is NULL, we haven't run ls-remote to find out yet".

However, transport->remote_refs could still be NULL while cloning from
an empty repository.  This causes get_refs_list() to be run unnecessarily.

Introduce a flag, transport->got_remote_refs, to more explicitly record
if we have run transport->get_refs_list() already.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-16 09:11:22 -08:00
Junio C Hamano
533e8af50e Merge branch 'il/push-set-upstream'
* il/push-set-upstream:
  Add push --set-upstream

Conflicts:
	transport.c
2010-01-20 14:40:48 -08:00
Junio C Hamano
42aac96763 Merge branch 'tc/clone-v-progress'
* tc/clone-v-progress:
  clone: use --progress to force progress reporting
  clone: set transport->verbose when -v/--verbose is used
  git-clone.txt: reword description of progress behaviour
  check stderr with isatty() instead of stdout when deciding to show progress

Conflicts:
	transport.c
2010-01-17 15:58:58 -08:00
Ilari Liusvaara
e9fcd1e212 Add push --set-upstream
Frequent complaint is lack of easy way to set up upstream (tracking)
references for git pull to work as part of push command. So add switch
--set-upstream (-u) to do just that.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-16 16:39:58 -08:00
Tay Ray Chuan
486a3d7164 check stderr with isatty() instead of stdout when deciding to show progress
Make transport code (viz. transport.c::fetch_refs_via_pack() and
transport-helper.c::standard_options()) that decides to show progress
check if stderr is a terminal, instead of stdout. After all, progress
reports (via the API in progress.[ch]) are sent to stderr.

Update the documentation for git-clone to say "standard error" as well.

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-28 18:49:18 -08:00
Ilari Liusvaara
b236752a87 Support remote archive from all smart transports
Previously, remote archive required internal (non remote-helper)
smart transport. Extend the remote archive to also support smart
transports implemented by remote helpers.

Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-28 00:24:15 -08:00
Ilari Liusvaara
61b075bd3e Support taking over transports
Add support for taking over transports that turn out to be smart.

Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-09 12:40:42 -08:00
Ilari Liusvaara
aa5af9749f Refactor git transport options parsing
Refactor the transport options parsing so that protocols that aren't
directly smart transports (file://, git://, ssh:// & co) can record
the smart transport options for the case if it turns that transport
can actually be smart.

Signed-off-by: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-09 12:40:42 -08:00
Junio C Hamano
a24a32ddb3 Merge branch 'master' into il/vcs-helper
* master: (334 commits)
  bash: update 'git commit' completion
  Git 1.6.5.5
  Fix diff -B/--dirstat miscounting of newly added contents
  reset: improve worktree safety valves
  Documentation: Avoid use of xmlto --stringparam
  archive: clarify description of path parameter
  rerere: don't segfault on failure to open rr-cache
  Prepare for 1.6.5.5
  gitweb: Describe (possible) gitweb.js minification in gitweb/README
  Documentation: xmlto 0.0.18 does not know --stringparam
  Fix crasher on encountering SHA1-like non-note in notes tree
  t9001: use older Getopt::Long boolean prefix '--no' rather than '--no-'
  t4201: use ISO8859-1 rather than ISO-8859-1
  Git 1.6.5.4
  Unconditionally set man.base.url.for.relative.links
  Documentation/Makefile: allow man.base.url.for.relative.link to be set from Make
  Git 1.6.6-rc1
  git-pull.sh: Fix call to git-merge for new command format
  Prepare for 1.6.5.4
  merge: do not add standard message when message is given with -m option
  ...

Conflicts:
	Documentation/git-remote-helpers.txt
	Makefile
	builtin-ls-remote.c
	builtin-push.c
	transport-helper.c

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-06 22:40:16 -08:00
Daniel Barkalow
3714831189 Allow fetch to modify refs
This allows the transport to use the null sha1 for a ref reported to
be present in the remote repository to indicate that a ref exists but
its actual value is presently unknown and will be set if the objects
are fetched.

Also adds documentation to the API to specify exactly what the methods
should do and how they should interpret arguments.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-17 21:45:44 -08:00
Shawn O. Pearce
cff7123c11 fetch: Allow transport -v -v -v to set verbosity to 3
Helpers might want a higher level of verbosity than just +1 (the
porcelain default setting) and +2 (-v -v).  Expand the field to
allow verbosity in the range -1..3.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
CC: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-30 19:20:54 -07:00
Junio C Hamano
cd03eebbfd Merge branch 'db/vcs-helper'
* db/vcs-helper:
  Makefile: remove remnant of separate http/https/ftp helpers
  Use a clearer style to issue commands to remote helpers
  Make the "traditionally-supported" URLs a special case
  Makefile: install hardlinks for git-remote-<scheme> supported by libcurl if possible
  Makefile: do not link three copies of git-remote-* programs
  Makefile: git-http-fetch does not need expat
  http-fetch: Fix Makefile dependancies
  Add transport native helper executables to .gitignore
  git-http-fetch: not a builtin
  Use an external program to implement fetching with curl
  Add support for external programs for handling native fetches
2009-09-13 01:31:55 -07:00
Daniel Barkalow
c9e388bb48 Make the "traditionally-supported" URLs a special case
Instead of trying to make http://, https://, and ftp:// URLs
indicative of some sort of pattern of transport helper usage, make
them a special case which runs the "curl" helper, and leave the
mechanism by which arbitrary helpers will be chosen entirely to future
work.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-03 21:27:36 -07:00
Junio C Hamano
6ffd781226 Merge branch 'maint'
* maint:
  push: point to 'git pull' and 'git push --force' in case of non-fast forward
  Documentation: add: <filepattern>... is optional
  Change mentions of "git programs" to "git commands"
  Documentation: merge: one <remote> is required
  help.c: give correct structure's size to memset()
2009-08-12 16:36:04 -07:00
Matthieu Moy
07436e43da push: point to 'git pull' and 'git push --force' in case of non-fast forward
'git push' failing because of non-fast forward is a very common situation,
and a beginner does not necessarily understand "fast forward" immediately.

Add a new section to the git-push documentation and refer them to it.

Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-12 16:15:47 -07:00
Jeff King
afdeeb00ee push: add --quiet flag
Some transports produce output even without "--verbose"
turned on. This provides a way to tell them to be more
quiet (whereas simply redirecting might lose error
messages).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-05 20:14:07 -07:00
Daniel Barkalow
6eb996b570 Add support for external programs for handling native fetches
transport_get() can call transport_native_helper_init() to have list and
fetch-ref operations handled by running a separate program as:

 git remote-<something> <remote> [<url>]

This program then accepts, on its stdin, "list" and "fetch <hex>
<name>" commands; the former prints out a list of available refs and
either their hashes or what they are symrefs to, while the latter
fetches them into the local object database and prints a newline when done.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-05 10:34:01 -07:00
Larry D'Anna
1965ff744a add --porcelain option to git-push
If --porcelain is used git-push will produce machine-readable output.  The
output status line for each ref will be tab-separated and sent to stdout instead
of stderr.  The full symbolic names of the refs will be given.  For example

$ git push --dry-run --porcelain master :foobar 2>/dev/null \
  | perl -pe 's/\t/ TAB /g'

= TAB refs/heads/master:refs/heads/master TAB [up to date]
- TAB :refs/heads/foobar TAB [deleted]

Signed-off-by: Larry D'Anna <larry@elder-gods.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27 22:26:58 -07:00
Andreas Ericsson
47abd85ba0 fetch: Strip usernames from url's before storing them
When pulling from a remote, the full URL including username
is by default added to the commit message. Since it adds
very little value but could be used by malicious people to
glean valid usernames (with matching hostnames), we're far
better off just stripping the username before storing the
remote URL locally.

Note that this patch has no lasting visible effect when
"git pull" does not create a merge commit. It simply
alters what gets written to .git/FETCH_HEAD, which is used
by "git merge" to automagically create its messages.

Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-21 00:05:21 -07:00
Daniel Barkalow
64fcef2daa Move push matching and reporting logic into transport.c
For native-protocol pushes (and other protocols as they are converted
to the new method), this moves the refspec match, tracking update, and
report message out of send-pack() and into transport_push(), where it
can be shared completely with other protocols. This also makes fetch
and push more similar in terms of what code is in what file.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-09 15:41:20 -07:00
Miklos Vajna
21188b1eaf Implement git clone -v
The new -v option forces the progressbar, even in case the output
is not a terminal.  This can be useful if the caller is an IDE or
wrapper which wants to scrape the progressbar from stderr and show
its information in a different format.

Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-09 11:26:17 -07:00
Daniel Barkalow
2d5c298f91 Mark the list of refs to fetch as const
Fetching the objects doesn't actually modify the list in any of the
code paths, so this will allow code that fetches the entire (const)
list of available refs to just pass the list in directly.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-04 17:41:44 -07:00
Shawn O. Pearce
41fa7d2eae Teach git-fetch to exploit server side automatic tag following
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>
2008-03-04 23:28:15 -08:00
Junio C Hamano
bcd2e266a6 Merge branch 'aw/mirror-push' into jk/send-pack
* 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
2007-11-14 03:13:30 -08:00
Junio C Hamano
a108e53861 Merge branch 'db/remote-builtin' into jk/send-pack
* 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
2007-11-14 03:09:52 -08:00
Steffen Prohaska
1b2486d737 push: teach push to pass --verbose option to transport layer
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>
2007-11-11 14:37:03 -08:00
Andy Whitcroft
94c89ba662 git-push: plumb in --mirror mode
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>
2007-11-09 21:14:10 -08:00
Daniel Barkalow
4577370e9b Miscellaneous const changes and utilities
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>
2007-11-02 22:40:43 -07:00
Shawn O. Pearce
2e13e5d892 Merge branch 'master' into db/fetch-pack
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
2007-10-16 00:15:25 -04:00
Daniel Barkalow
2b5a06edca Restore default verbosity for http fetches.
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>
2007-10-02 21:12:01 -07:00
Shawn O. Pearce
50ab5fd3fc Ensure builtin-fetch honors {fetch,transfer}.unpackLimit
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>
2007-09-19 03:22:31 -07:00
Shawn O. Pearce
824d5776c3 Refactor struct transport_ops inlined into struct transport
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>
2007-09-19 03:22:31 -07:00
Shawn O. Pearce
e5f4e21463 Remove unnecessary 'fetch' argument from transport_get API
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>
2007-09-19 03:22:31 -07:00
Shawn O. Pearce
1788c39cd0 Remove pack.keep after ref updates in git-fetch
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>
2007-09-19 03:22:30 -07:00
Shawn O. Pearce
425b139313 Simplify fetch transport API to just one function
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>
2007-09-19 03:22:30 -07:00
Daniel Barkalow
c29727d524 Add fetch methods to transport library.
Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-19 03:22:30 -07:00
Daniel Barkalow
9b288516ee Push code for transport library
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>
2007-09-19 03:22:30 -07:00